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1053 Commits
release/2.
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n0.7.14
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|
|
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1
.gitattributes
vendored
1
.gitattributes
vendored
@@ -1 +0,0 @@
|
||||
*.pnm -diff -text
|
||||
129
.gitignore
vendored
129
.gitignore
vendored
@@ -1,89 +1,52 @@
|
||||
*.a
|
||||
.config
|
||||
.version
|
||||
*.o
|
||||
*.d
|
||||
*.def
|
||||
*.dll
|
||||
*.dylib
|
||||
*.exe
|
||||
*.exp
|
||||
*.gcda
|
||||
*.gcno
|
||||
*.h.c
|
||||
*.ilk
|
||||
*.lib
|
||||
*.pc
|
||||
*.pdb
|
||||
*.so
|
||||
*.so.*
|
||||
*.swp
|
||||
*.ver
|
||||
*.ho
|
||||
*-example
|
||||
*-test
|
||||
*_g
|
||||
/.config
|
||||
/.version
|
||||
/ffmpeg
|
||||
/ffplay
|
||||
/ffprobe
|
||||
/ffserver
|
||||
/config.*
|
||||
/coverage.info
|
||||
/doc/*.1
|
||||
/doc/*.3
|
||||
/doc/*.html
|
||||
/doc/*.pod
|
||||
/doc/config.texi
|
||||
/doc/avoptions_codec.texi
|
||||
/doc/avoptions_format.texi
|
||||
/doc/doxy/html/
|
||||
/doc/examples/avio_reading
|
||||
/doc/examples/decoding_encoding
|
||||
/doc/examples/demuxing_decoding
|
||||
/doc/examples/extract_mvs
|
||||
/doc/examples/filter_audio
|
||||
/doc/examples/filtering_audio
|
||||
/doc/examples/filtering_video
|
||||
/doc/examples/metadata
|
||||
/doc/examples/muxing
|
||||
/doc/examples/pc-uninstalled
|
||||
/doc/examples/remuxing
|
||||
/doc/examples/resampling_audio
|
||||
/doc/examples/scaling_video
|
||||
/doc/examples/transcode_aac
|
||||
/doc/examples/transcoding
|
||||
/doc/fate.txt
|
||||
/doc/print_options
|
||||
/lcov/
|
||||
/libavcodec/*_tablegen
|
||||
/libavcodec/*_tables.c
|
||||
/libavcodec/*_tables.h
|
||||
/libavutil/avconfig.h
|
||||
/libavutil/ffversion.h
|
||||
/tests/audiogen
|
||||
/tests/base64
|
||||
/tests/data/
|
||||
/tests/pixfmts.mak
|
||||
/tests/rotozoom
|
||||
/tests/test_copy.ffmeta
|
||||
/tests/tiny_psnr
|
||||
/tests/tiny_ssim
|
||||
/tests/videogen
|
||||
/tests/vsynth1/
|
||||
/tools/aviocat
|
||||
/tools/ffbisect
|
||||
/tools/bisect.need
|
||||
/tools/crypto_bench
|
||||
/tools/cws2fws
|
||||
/tools/fourcc2pixfmt
|
||||
/tools/ffescape
|
||||
/tools/ffeval
|
||||
/tools/ffhash
|
||||
/tools/graph2dot
|
||||
/tools/ismindex
|
||||
/tools/pktdumper
|
||||
/tools/probetest
|
||||
/tools/qt-faststart
|
||||
/tools/trasher
|
||||
/tools/seek_print
|
||||
/tools/uncoded_frame
|
||||
/tools/zmqsend
|
||||
*.def
|
||||
*.dll
|
||||
*.lib
|
||||
*.exp
|
||||
config.*
|
||||
doc/*.1
|
||||
doc/*.html
|
||||
doc/*.pod
|
||||
doxy
|
||||
ffmpeg
|
||||
ffplay
|
||||
ffprobe
|
||||
ffserver
|
||||
libavcodec/*_tablegen
|
||||
libavcodec/*_tables.c
|
||||
libavcodec/*_tables.h
|
||||
libavcodec/libavcodec*
|
||||
libavcore/libavcore*
|
||||
libavdevice/libavdevice*
|
||||
libavfilter/libavfilter*
|
||||
libavformat/libavformat*
|
||||
libavutil/avconfig.h
|
||||
libavutil/libavutil*
|
||||
libpostproc/libpostproc*
|
||||
libswscale/libswscale*
|
||||
tests/audiogen
|
||||
tests/base64
|
||||
tests/data
|
||||
tests/rotozoom
|
||||
tests/seek_test
|
||||
tests/tiny_psnr
|
||||
tests/videogen
|
||||
tests/vsynth1
|
||||
tests/vsynth2
|
||||
tools/cws2fws
|
||||
tools/graph2dot
|
||||
tools/lavfi-showfiltfmts
|
||||
tools/pktdumper
|
||||
tools/probetest
|
||||
tools/qt-faststart
|
||||
tools/trasher
|
||||
tools/trasher*.d
|
||||
version.h
|
||||
|
||||
@@ -500,3 +500,5 @@ necessary. Here is a sample; alter the names:
|
||||
Ty Coon, President of Vice
|
||||
|
||||
That's all there is to it!
|
||||
|
||||
|
||||
|
||||
59
CREDITS
59
CREDITS
@@ -1,6 +1,55 @@
|
||||
See the Git history of the project (git://source.ffmpeg.org/ffmpeg) to
|
||||
get the names of people who have contributed to FFmpeg.
|
||||
This file contains the names of some of the people who have contributed to
|
||||
FFmpeg. The names are sorted alphabetically by last name. As this file is
|
||||
currently quite outdated and git serves as a much better tool for determining
|
||||
authorship, it remains here for historical reasons only.
|
||||
|
||||
To check the log, you can type the command "git log" in the FFmpeg
|
||||
source directory, or browse the online repository at
|
||||
http://source.ffmpeg.org.
|
||||
Dénes Balatoni
|
||||
Michel Bardiaux
|
||||
Fabrice Bellard
|
||||
Patrice Bensoussan
|
||||
Alex Beregszaszi
|
||||
BERO
|
||||
Thilo Borgmann
|
||||
Mario Brito
|
||||
Ronald Bultje
|
||||
Alex Converse
|
||||
Maarten Daniels
|
||||
Reimar Doeffinger
|
||||
Tim Ferguson
|
||||
Brian Foley
|
||||
Arpad Gereoffy
|
||||
Philip Gladstone
|
||||
Vladimir Gneushev
|
||||
Roine Gustafsson
|
||||
David Hammerton
|
||||
Wolfgang Hesseler
|
||||
Marc Hoffman
|
||||
Falk Hueffner
|
||||
Aurélien Jacobs
|
||||
Steven Johnson
|
||||
Zdenek Kabelac
|
||||
Robin Kay
|
||||
Todd Kirby
|
||||
Nick Kurshev
|
||||
Benjamin Larsson
|
||||
Loïc Le Loarer
|
||||
Daniel Maas
|
||||
Mike Melanson
|
||||
Loren Merritt
|
||||
Jeff Muizelaar
|
||||
Michael Niedermayer
|
||||
François Revol
|
||||
Peter Ross
|
||||
Måns Rullgård
|
||||
Stefano Sabatini
|
||||
Roman Shaposhnik
|
||||
Oded Shimon
|
||||
Dieter Shirley
|
||||
Konstantin Shishkov
|
||||
Juan J. Sierralta
|
||||
Ewald Snel
|
||||
Sascha Sommer
|
||||
Leon van Stuivenberg
|
||||
Roberto Togni
|
||||
Lionel Ulmer
|
||||
Reynaldo Verdejo
|
||||
|
||||
@@ -31,20 +31,14 @@ PROJECT_NAME = FFmpeg
|
||||
# This could be handy for archiving the generated documentation or
|
||||
# if some version control system is used.
|
||||
|
||||
PROJECT_NUMBER = 2.5.11
|
||||
|
||||
# With the PROJECT_LOGO tag one can specify a logo or icon that is included
|
||||
# in the documentation. The maximum height of the logo should not exceed 55
|
||||
# pixels and the maximum width should not exceed 200 pixels. Doxygen will
|
||||
# copy the logo to the output directory.
|
||||
PROJECT_LOGO =
|
||||
PROJECT_NUMBER = 0.7.14
|
||||
|
||||
# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
|
||||
# base path where the generated documentation will be put.
|
||||
# If a relative path is entered, it will be relative to the location
|
||||
# where doxygen was started. If left blank the current directory will be used.
|
||||
|
||||
OUTPUT_DIRECTORY = doc/doxy
|
||||
OUTPUT_DIRECTORY = doxy
|
||||
|
||||
# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create
|
||||
# 4096 sub-directories (in 2 levels) under the output directory of each output
|
||||
@@ -277,7 +271,7 @@ SUBGROUPING = YES
|
||||
# be useful for C code in case the coding convention dictates that all compound
|
||||
# types are typedef'ed and only the typedef is referenced, never the tag name.
|
||||
|
||||
TYPEDEF_HIDES_STRUCT = YES
|
||||
TYPEDEF_HIDES_STRUCT = NO
|
||||
|
||||
# The SYMBOL_CACHE_SIZE determines the size of the internal cache use to
|
||||
# determine which symbols to keep in memory and which to flush to disk.
|
||||
@@ -288,7 +282,7 @@ TYPEDEF_HIDES_STRUCT = YES
|
||||
# causing a significant performance penality.
|
||||
# If the system has enough physical memory increasing the cache will improve the
|
||||
# performance by keeping more symbols in memory. Note that the value works on
|
||||
# a logarithmic scale so increasing the size by one will roughly double the
|
||||
# a logarithmic scale so increasing the size by one will rougly double the
|
||||
# memory usage. The cache size is given by this formula:
|
||||
# 2^(16+SYMBOL_CACHE_SIZE). The valid range is 0..9, the default is 0,
|
||||
# corresponding to a cache size of 2^16 = 65536 symbols
|
||||
@@ -409,7 +403,7 @@ INLINE_INFO = YES
|
||||
# alphabetically by member name. If set to NO the members will appear in
|
||||
# declaration order.
|
||||
|
||||
SORT_MEMBER_DOCS = NO
|
||||
SORT_MEMBER_DOCS = YES
|
||||
|
||||
# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the
|
||||
# brief documentation of file, namespace and class members alphabetically
|
||||
@@ -489,6 +483,12 @@ MAX_INITIALIZER_LINES = 30
|
||||
|
||||
SHOW_USED_FILES = YES
|
||||
|
||||
# If the sources in your project are distributed over multiple directories
|
||||
# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy
|
||||
# in the documentation. The default is NO.
|
||||
|
||||
SHOW_DIRECTORIES = NO
|
||||
|
||||
# Set the SHOW_FILES tag to NO to disable the generation of the Files page.
|
||||
# This will remove the Files entry from the Quick Index and from the
|
||||
# Folder Tree View (if specified). The default is YES.
|
||||
@@ -639,14 +639,15 @@ EXCLUDE_SYMBOLS =
|
||||
# directories that contain example code fragments that are included (see
|
||||
# the \include command).
|
||||
|
||||
EXAMPLE_PATH = doc/examples/
|
||||
EXAMPLE_PATH = libavcodec/ \
|
||||
libavformat/
|
||||
|
||||
# If the value of the EXAMPLE_PATH tag contains directories, you can use the
|
||||
# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
|
||||
# and *.h) to filter out the source-files in the directories. If left
|
||||
# blank all files are included.
|
||||
|
||||
EXAMPLE_PATTERNS = *.c
|
||||
EXAMPLE_PATTERNS = *-example.c
|
||||
|
||||
# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
|
||||
# searched for input files to be used with the \include or \dontinclude
|
||||
@@ -709,7 +710,7 @@ INLINE_SOURCES = NO
|
||||
# doxygen to hide any special comment blocks from generated source code
|
||||
# fragments. Normal C and C++ comments will always remain visible.
|
||||
|
||||
STRIP_CODE_COMMENTS = NO
|
||||
STRIP_CODE_COMMENTS = YES
|
||||
|
||||
# If the REFERENCED_BY_RELATION tag is set to YES
|
||||
# then for each documented function all documented
|
||||
@@ -818,7 +819,7 @@ HTML_STYLESHEET =
|
||||
# 180 is cyan, 240 is blue, 300 purple, and 360 is red again.
|
||||
# The allowed range is 0 to 359.
|
||||
|
||||
#HTML_COLORSTYLE_HUE = 120
|
||||
HTML_COLORSTYLE_HUE = 220
|
||||
|
||||
# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of
|
||||
# the colors in the HTML output. For a value of 0 the output will use
|
||||
@@ -841,6 +842,12 @@ HTML_COLORSTYLE_GAMMA = 80
|
||||
|
||||
HTML_TIMESTAMP = YES
|
||||
|
||||
# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes,
|
||||
# files or namespaces will be aligned in HTML using tables. If set to
|
||||
# NO a bullet list will be used.
|
||||
|
||||
HTML_ALIGN_MEMBERS = YES
|
||||
|
||||
# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
|
||||
# documentation will contain sections that can be hidden and shown after the
|
||||
# page has loaded. For this to work a browser that supports
|
||||
@@ -851,7 +858,7 @@ HTML_DYNAMIC_SECTIONS = NO
|
||||
|
||||
# If the GENERATE_DOCSET tag is set to YES, additional index files
|
||||
# will be generated that can be used as input for Apple's Xcode 3
|
||||
# integrated development environment, introduced with OS X 10.5 (Leopard).
|
||||
# integrated development environment, introduced with OSX 10.5 (Leopard).
|
||||
# To create a documentation set, doxygen will generate a Makefile in the
|
||||
# HTML output directory. Running make will produce the docset in that
|
||||
# directory and running "make install" will install the docset in
|
||||
@@ -1021,6 +1028,11 @@ ENUM_VALUES_PER_LINE = 4
|
||||
|
||||
GENERATE_TREEVIEW = NO
|
||||
|
||||
# By enabling USE_INLINE_TREES, doxygen will generate the Groups, Directories,
|
||||
# and Class Hierarchy pages using a tree view instead of an ordered list.
|
||||
|
||||
USE_INLINE_TREES = NO
|
||||
|
||||
# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
|
||||
# used to set the initial width (in pixels) of the frame in which the tree
|
||||
# is shown.
|
||||
@@ -1056,7 +1068,7 @@ FORMULA_TRANSPARENT = YES
|
||||
# typically be disabled. For large projects the javascript based search engine
|
||||
# can be slow, then enabling SERVER_BASED_SEARCH may provide a better solution.
|
||||
|
||||
SEARCHENGINE = YES
|
||||
SEARCHENGINE = NO
|
||||
|
||||
# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
|
||||
# implemented using a PHP enabled web server instead of at the web client
|
||||
@@ -1356,19 +1368,21 @@ INCLUDE_FILE_PATTERNS =
|
||||
# instead of the = operator.
|
||||
|
||||
PREDEFINED = "__attribute__(x)=" \
|
||||
"RENAME(x)=x ## _TMPL" \
|
||||
"DEF(x)=x ## _TMPL" \
|
||||
HAVE_AV_CONFIG_H \
|
||||
HAVE_MMX \
|
||||
HAVE_MMX2 \
|
||||
HAVE_AMD3DNOW \
|
||||
"DECLARE_ALIGNED(a,t,n)=t n" \
|
||||
"offsetof(x,y)=0x42" \
|
||||
av_alloc_size \
|
||||
AV_GCC_VERSION_AT_LEAST(x,y)=1 \
|
||||
__GNUC__=1 \
|
||||
"offsetof(x,y)=0x42"
|
||||
|
||||
# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
|
||||
# this tag can be used to specify a list of macro names that should be expanded.
|
||||
# The macro definition that is found in the sources will be used.
|
||||
# Use the PREDEFINED tag if you want to use a different macro definition.
|
||||
|
||||
EXPAND_AS_DEFINED = declare_idct \
|
||||
READ_PAR_DATA \
|
||||
EXPAND_AS_DEFINED = declare_idct
|
||||
|
||||
# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then
|
||||
# doxygen's preprocessor will remove all function-like macros that are alone
|
||||
15
INSTALL
Normal file
15
INSTALL
Normal file
@@ -0,0 +1,15 @@
|
||||
|
||||
1) Type './configure' to create the configuration. A list of configure
|
||||
options is printed by running 'configure --help'.
|
||||
|
||||
'configure' can be launched from a directory different from the FFmpeg
|
||||
sources to build the objects out of tree. To do this, use an absolute
|
||||
path when launching 'configure', e.g. '/ffmpegdir/ffmpeg/configure'.
|
||||
|
||||
2) Then type 'make' to build FFmpeg. GNU Make 3.81 or later is required.
|
||||
|
||||
3) Type 'make install' to install all binaries and libraries you built.
|
||||
|
||||
NOTICE
|
||||
|
||||
- Non system dependencies (e.g. libx264, libvpx) are disabled by default.
|
||||
17
INSTALL.md
17
INSTALL.md
@@ -1,17 +0,0 @@
|
||||
#Installing FFmpeg:
|
||||
|
||||
1. Type `./configure` to create the configuration. A list of configure
|
||||
options is printed by running `configure --help`.
|
||||
|
||||
`configure` can be launched from a directory different from the FFmpeg
|
||||
sources to build the objects out of tree. To do this, use an absolute
|
||||
path when launching `configure`, e.g. `/ffmpegdir/ffmpeg/configure`.
|
||||
|
||||
2. Then type `make` to build FFmpeg. GNU Make 3.81 or later is required.
|
||||
|
||||
3. Type `make install` to install all binaries and libraries you built.
|
||||
|
||||
NOTICE
|
||||
------
|
||||
|
||||
- Non system dependencies (e.g. libx264, libvpx) are disabled by default.
|
||||
46
LICENSE
Normal file
46
LICENSE
Normal file
@@ -0,0 +1,46 @@
|
||||
FFmpeg:
|
||||
-------
|
||||
|
||||
Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
|
||||
or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other
|
||||
files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
|
||||
FFmpeg.
|
||||
|
||||
Some optional parts of FFmpeg are licensed under the GNU General Public License
|
||||
version 2 or later (GPL v2+). See the file COPYING.GPLv2 for details. None of
|
||||
these parts are used by default, you have to explicitly pass --enable-gpl to
|
||||
configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
|
||||
|
||||
Specifically, the GPL parts of FFmpeg are
|
||||
|
||||
- libpostproc
|
||||
- optional x86 optimizations in the files
|
||||
libavcodec/x86/idct_mmx.c
|
||||
- the X11 grabber in libavdevice/x11grab.c
|
||||
|
||||
There are a handful of files under other licensing terms, namely:
|
||||
|
||||
* The files libavcodec/jfdctfst.c, libavcodec/jfdctint.c, libavcodec/jrevdct.c
|
||||
are taken from libjpeg, see the top of the files for licensing details.
|
||||
|
||||
Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
|
||||
the configure parameter --enable-version3 will activate this licensing option
|
||||
for you. Read the file COPYING.LGPLv3 or, if you have enabled GPL parts,
|
||||
COPYING.GPLv3 to learn the exact legal terms that apply in this case.
|
||||
|
||||
|
||||
external libraries:
|
||||
-------------------
|
||||
|
||||
Some external libraries, e.g. libx264, are under GPL and can be used in
|
||||
conjunction with FFmpeg. They require --enable-gpl to be passed to configure
|
||||
as well.
|
||||
|
||||
The OpenCORE external libraries are under the Apache License 2.0. That license
|
||||
is incompatible with the LGPL v2.1 and the GPL v2, but not with version 3 of
|
||||
those licenses. So to combine the OpenCORE libraries with FFmpeg, the license
|
||||
version needs to be upgraded by passing --enable-version3 to configure.
|
||||
|
||||
The nonfree external libraries libfaac and libaacplus can be hooked up in FFmpeg.
|
||||
You need to pass --enable-nonfree to configure to enable it. Employ this option
|
||||
with care as FFmpeg then becomes nonfree and unredistributable.
|
||||
106
LICENSE.md
106
LICENSE.md
@@ -1,106 +0,0 @@
|
||||
#FFmpeg:
|
||||
|
||||
Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
|
||||
or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other
|
||||
files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
|
||||
FFmpeg.
|
||||
|
||||
Some optional parts of FFmpeg are licensed under the GNU General Public License
|
||||
version 2 or later (GPL v2+). See the file COPYING.GPLv2 for details. None of
|
||||
these parts are used by default, you have to explicitly pass --enable-gpl to
|
||||
configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
|
||||
|
||||
Specifically, the GPL parts of FFmpeg are:
|
||||
|
||||
- libpostproc
|
||||
- libmpcodecs
|
||||
- optional x86 optimizations in the files
|
||||
libavcodec/x86/flac_dsp_gpl.asm
|
||||
libavcodec/x86/idct_mmx.c
|
||||
- libutvideo encoding/decoding wrappers in
|
||||
libavcodec/libutvideo*.cpp
|
||||
- the X11 grabber in libavdevice/x11grab.c
|
||||
- the swresample test app in
|
||||
libswresample/swresample-test.c
|
||||
- the texi2pod.pl tool
|
||||
- the following filters in libavfilter:
|
||||
- f_ebur128.c
|
||||
- vf_blackframe.c
|
||||
- vf_boxblur.c
|
||||
- vf_colormatrix.c
|
||||
- vf_cropdetect.c
|
||||
- vf_decimate.c
|
||||
- vf_delogo.c
|
||||
- vf_geq.c
|
||||
- vf_histeq.c
|
||||
- vf_hqdn3d.c
|
||||
- vf_interlace.c
|
||||
- vf_kerndeint.c
|
||||
- vf_mcdeint.c
|
||||
- vf_mp.c
|
||||
- vf_owdenoise.c
|
||||
- vf_perspective.c
|
||||
- vf_phase.c
|
||||
- vf_pp.c
|
||||
- vf_pullup.c
|
||||
- vf_sab.c
|
||||
- vf_smartblur.c
|
||||
- vf_spp.c
|
||||
- vf_stereo3d.c
|
||||
- vf_super2xsai.c
|
||||
- vf_tinterlace.c
|
||||
- vsrc_mptestsrc.c
|
||||
|
||||
Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
|
||||
the configure parameter --enable-version3 will activate this licensing option
|
||||
for you. Read the file COPYING.LGPLv3 or, if you have enabled GPL parts,
|
||||
COPYING.GPLv3 to learn the exact legal terms that apply in this case.
|
||||
|
||||
There are a handful of files under other licensing terms, namely:
|
||||
|
||||
* The files libavcodec/jfdctfst.c, libavcodec/jfdctint_template.c and
|
||||
libavcodec/jrevdct.c are taken from libjpeg, see the top of the files for
|
||||
licensing details. Specifically note that you must credit the IJG in the
|
||||
documentation accompanying your program if you only distribute executables.
|
||||
You must also indicate any changes including additions and deletions to
|
||||
those three files in the documentation.
|
||||
tests/reference.pnm is under the expat license
|
||||
|
||||
|
||||
external libraries
|
||||
==================
|
||||
|
||||
FFmpeg can be combined with a number of external libraries, which sometimes
|
||||
affect the licensing of binaries resulting from the combination.
|
||||
|
||||
compatible libraries
|
||||
--------------------
|
||||
|
||||
The following libraries are under GPL:
|
||||
- frei0r
|
||||
- libcdio
|
||||
- libutvideo
|
||||
- libvidstab
|
||||
- libx264
|
||||
- libx265
|
||||
- libxavs
|
||||
- libxvid
|
||||
When combining them with FFmpeg, FFmpeg needs to be licensed as GPL as well by
|
||||
passing --enable-gpl to configure.
|
||||
|
||||
The OpenCORE and VisualOn libraries are under the Apache License 2.0. That
|
||||
license is incompatible with the LGPL v2.1 and the GPL v2, but not with
|
||||
version 3 of those licenses. So to combine these libraries with FFmpeg, the
|
||||
license version needs to be upgraded by passing --enable-version3 to configure.
|
||||
|
||||
incompatible libraries
|
||||
----------------------
|
||||
|
||||
The Fraunhofer AAC library, FAAC and aacplus are under licenses which
|
||||
are incompatible with the GPLv2 and v3. We do not know for certain if their
|
||||
licenses are compatible with the LGPL.
|
||||
If you wish to enable these libraries, pass --enable-nonfree to configure.
|
||||
But note that if you enable any of these libraries the resulting binary will
|
||||
be under a complex license mix that is more restrictive than the LGPL and that
|
||||
may result in additional obligations. It is possible that these
|
||||
restrictions cause the resulting binary to be unredistributeable.
|
||||
271
MAINTAINERS
271
MAINTAINERS
@@ -4,16 +4,11 @@ FFmpeg maintainers
|
||||
Below is a list of the people maintaining different parts of the
|
||||
FFmpeg code.
|
||||
|
||||
Please try to keep entries where you are the maintainer up to date!
|
||||
|
||||
Names in () mean that the maintainer currently has no time to maintain the code.
|
||||
A (CC <address>) after the name means that the maintainer prefers to be CC-ed on
|
||||
patches and related discussions.
|
||||
|
||||
|
||||
Project Leader
|
||||
==============
|
||||
|
||||
Michael Niedermayer
|
||||
final design decisions
|
||||
|
||||
|
||||
@@ -30,7 +25,7 @@ ffprobe:
|
||||
ffprobe.c Stefano Sabatini
|
||||
|
||||
ffserver:
|
||||
ffserver.c Reynaldo H. Verdejo Pinochet
|
||||
ffserver.c, ffserver.h Baptiste Coudurier
|
||||
|
||||
Commandline utility code:
|
||||
cmdutils.c, cmdutils.h Michael Niedermayer
|
||||
@@ -42,24 +37,14 @@ QuickTime faststart:
|
||||
Miscellaneous Areas
|
||||
===================
|
||||
|
||||
documentation Stefano Sabatini, Mike Melanson, Timothy Gu
|
||||
build system (configure, makefiles) Diego Biurrun, Mans Rullgard
|
||||
project server Árpád Gereöffy, Michael Niedermayer, Reimar Doeffinger, Alexander Strasser
|
||||
documentation Mike Melanson
|
||||
website Robert Swain
|
||||
build system (configure,Makefiles) Diego Biurrun, Mans Rullgard
|
||||
project server Diego Biurrun, Mans Rullgard
|
||||
mailinglists Michael Niedermayer, Baptiste Coudurier
|
||||
presets Robert Swain
|
||||
metadata subsystem Aurelien Jacobs
|
||||
release management Michael Niedermayer
|
||||
|
||||
|
||||
Communication
|
||||
=============
|
||||
|
||||
website Deby Barbara Lepage
|
||||
fate.ffmpeg.org Timothy Gu
|
||||
Trac bug tracker Alexander Strasser, Michael Niedermayer, Carl Eugen Hoyos, Lou Logan
|
||||
mailing lists Michael Niedermayer, Baptiste Coudurier, Lou Logan
|
||||
Google+ Paul B Mahol, Michael Niedermayer, Alexander Strasser
|
||||
Twitter Lou Logan
|
||||
Launchpad Timothy Gu
|
||||
release management Diego Biurrun, Reinhard Tartler
|
||||
|
||||
|
||||
libavutil
|
||||
@@ -71,24 +56,11 @@ Internal Interfaces:
|
||||
libavutil/common.h Michael Niedermayer
|
||||
|
||||
Other:
|
||||
bprint Nicolas George
|
||||
bswap.h
|
||||
des Reimar Doeffinger
|
||||
dynarray.h Nicolas George
|
||||
eval.c, eval.h Michael Niedermayer
|
||||
float_dsp Loren Merritt
|
||||
hash Reimar Doeffinger
|
||||
intfloat* Michael Niedermayer
|
||||
integer.c, integer.h Michael Niedermayer
|
||||
lzo Reimar Doeffinger
|
||||
mathematics.c, mathematics.h Michael Niedermayer
|
||||
mem.c, mem.h Michael Niedermayer
|
||||
opencl.c, opencl.h Wei Gao
|
||||
opt.c, opt.h Michael Niedermayer
|
||||
rational.c, rational.h Michael Niedermayer
|
||||
rc4 Reimar Doeffinger
|
||||
ripemd.c, ripemd.h James Almer
|
||||
timecode Clément Bœsch
|
||||
mathematics.c, mathematics.h Michael Niedermayer
|
||||
integer.c, integer.h Michael Niedermayer
|
||||
bswap.h
|
||||
|
||||
|
||||
libavcodec
|
||||
@@ -99,14 +71,16 @@ Generic Parts:
|
||||
avcodec.h Michael Niedermayer
|
||||
utility code:
|
||||
utils.c Michael Niedermayer
|
||||
mem.c Michael Niedermayer
|
||||
opt.c, opt.h Michael Niedermayer
|
||||
arithmetic expression evaluator:
|
||||
eval.c Michael Niedermayer
|
||||
audio and video frame extraction:
|
||||
parser.c Michael Niedermayer
|
||||
bitstream reading:
|
||||
bitstream.c, bitstream.h Michael Niedermayer
|
||||
CABAC:
|
||||
cabac.h, cabac.c Michael Niedermayer
|
||||
codec names:
|
||||
codec_names.sh Nicolas George
|
||||
DSP utilities:
|
||||
dsputils.c, dsputils.h Michael Niedermayer
|
||||
entropy coding:
|
||||
@@ -129,9 +103,6 @@ Generic Parts:
|
||||
libpostproc/* Michael Niedermayer
|
||||
table generation:
|
||||
tableprint.c, tableprint.h Reimar Doeffinger
|
||||
fixed point FFT:
|
||||
fft* Zeljko Lukac
|
||||
Text Subtitles Clément Bœsch
|
||||
|
||||
Codecs:
|
||||
4xm.c Michael Niedermayer
|
||||
@@ -145,87 +116,68 @@ Codecs:
|
||||
ass* Aurelien Jacobs
|
||||
asv* Michael Niedermayer
|
||||
atrac3* Benjamin Larsson
|
||||
atrac3plus* Maxim Poliakovski
|
||||
bgmc.c, bgmc.h Thilo Borgmann
|
||||
bink.c Kostya Shishkov
|
||||
binkaudio.c Peter Ross
|
||||
bmp.c Mans Rullgard, Kostya Shishkov
|
||||
cavs* Stefan Gehrer
|
||||
cdxl.c Paul B Mahol
|
||||
celp_filters.* Vitor Sessak
|
||||
cinepak.c Roberto Togni
|
||||
cinepakenc.c Rl / Aetey G.T. AB
|
||||
cljr Alex Beregszaszi
|
||||
cllc.c Derek Buitenhuis
|
||||
cook.c, cookdata.h Benjamin Larsson
|
||||
cpia.c Stephan Hilb
|
||||
crystalhd.c Philip Langdale
|
||||
cscd.c Reimar Doeffinger
|
||||
dca.c Kostya Shishkov, Benjamin Larsson
|
||||
dnxhd* Baptiste Coudurier
|
||||
dpcm.c Mike Melanson
|
||||
dv.c Roman Shaposhnik
|
||||
dvbsubdec.c Anshul Maheshwari
|
||||
dxa.c Kostya Shishkov
|
||||
dv.c Roman Shaposhnik
|
||||
eacmv*, eaidct*, eat* Peter Ross
|
||||
exif.c, exif.h Thilo Borgmann
|
||||
ffv1* Michael Niedermayer
|
||||
ffwavesynth.c Nicolas George
|
||||
fic.c Derek Buitenhuis
|
||||
ffv1.c Michael Niedermayer
|
||||
flac* Justin Ruggles
|
||||
flashsv* Benjamin Larsson
|
||||
flicvideo.c Mike Melanson
|
||||
g722.c Martin Storsjo
|
||||
g726.c Roman Shaposhnik
|
||||
gifdec.c Baptiste Coudurier
|
||||
h264* Loren Merritt, Michael Niedermayer
|
||||
h261* Michael Niedermayer
|
||||
h263* Michael Niedermayer
|
||||
h264* Loren Merritt, Michael Niedermayer
|
||||
huffyuv* Michael Niedermayer, Christophe Gisquet
|
||||
huffyuv.c Michael Niedermayer
|
||||
idcinvideo.c Mike Melanson
|
||||
imc* Benjamin Larsson
|
||||
indeo2* Kostya Shishkov
|
||||
indeo5* Kostya Shishkov
|
||||
interplayvideo.c Mike Melanson
|
||||
ivi* Kostya Shishkov
|
||||
jacosub* Clément Bœsch
|
||||
jpeg2000* Nicolas Bertrand
|
||||
jpeg_ls.c Kostya Shishkov
|
||||
jvdec.c Peter Ross
|
||||
kmvc.c Kostya Shishkov
|
||||
lcl*.c Roberto Togni, Reimar Doeffinger
|
||||
libcelt_dec.c Nicolas George
|
||||
libdirac* David Conrad
|
||||
libgsm.c Michel Bardiaux
|
||||
libdirac* David Conrad
|
||||
libopenjpeg.c Jaikrishnan Menon
|
||||
libopenjpegenc.c Michael Bradshaw
|
||||
libschroedinger* David Conrad
|
||||
libspeexdec.c Justin Ruggles
|
||||
libtheoraenc.c David Conrad
|
||||
libutvideo* Derek Buitenhuis
|
||||
libvorbis.c David Conrad
|
||||
libvpx* James Zern
|
||||
libx264.c Mans Rullgard, Jason Garrett-Glaser
|
||||
libx265.c Derek Buitenhuis
|
||||
libxavs.c Stefan Gehrer
|
||||
libzvbi-teletextdec.c Marton Balint
|
||||
libx264.c Mans Rullgard, Jason Garrett-Glaser
|
||||
loco.c Kostya Shishkov
|
||||
lzo.h, lzo.c Reimar Doeffinger
|
||||
mdec.c Michael Niedermayer
|
||||
mimic.c Ramiro Polla
|
||||
mjpeg*.c Michael Niedermayer
|
||||
mjpeg.c Michael Niedermayer
|
||||
mlp* Ramiro Polla
|
||||
mmvideo.c Peter Ross
|
||||
mpc* Kostya Shishkov
|
||||
mpeg12.c, mpeg12data.h Michael Niedermayer
|
||||
mpegvideo.c, mpegvideo.h Michael Niedermayer
|
||||
mqc* Nicolas Bertrand
|
||||
msmpeg4.c, msmpeg4data.h Michael Niedermayer
|
||||
msrle.c Mike Melanson
|
||||
msvideo1.c Mike Melanson
|
||||
nellymoserdec.c Benjamin Larsson
|
||||
nuv.c Reimar Doeffinger
|
||||
paf.* Paul B Mahol
|
||||
pcx.c Ivo van Poorten
|
||||
pgssubdec.c Reimar Doeffinger
|
||||
ptx.c Ivo van Poorten
|
||||
@@ -241,17 +193,15 @@ Codecs:
|
||||
rtjpeg.c, rtjpeg.h Reimar Doeffinger
|
||||
rv10.c Michael Niedermayer
|
||||
rv3* Kostya Shishkov
|
||||
rv4* Kostya Shishkov, Christophe Gisquet
|
||||
rv4* Kostya Shishkov
|
||||
s3tc* Ivo van Poorten
|
||||
smacker.c Kostya Shishkov
|
||||
smc.c Mike Melanson
|
||||
smvjpegdec.c Ash Hughes
|
||||
snow* Michael Niedermayer, Loren Merritt
|
||||
snow.c Michael Niedermayer, Loren Merritt
|
||||
sonic.c Alex Beregszaszi
|
||||
srt* Aurelien Jacobs
|
||||
sunrast.c Ivo van Poorten
|
||||
svq3.c Michael Niedermayer
|
||||
tak* Paul B Mahol
|
||||
targa.c Kostya Shishkov
|
||||
tiff.c Kostya Shishkov
|
||||
truemotion1* Mike Melanson
|
||||
@@ -259,24 +209,18 @@ Codecs:
|
||||
truespeech.c Kostya Shishkov
|
||||
tscc.c Kostya Shishkov
|
||||
tta.c Alex Beregszaszi, Jaikrishnan Menon
|
||||
ttaenc.c Paul B Mahol
|
||||
txd.c Ivo van Poorten
|
||||
ulti* Kostya Shishkov
|
||||
v410*.c Derek Buitenhuis
|
||||
vb.c Kostya Shishkov
|
||||
vble.c Derek Buitenhuis
|
||||
vc1* Kostya Shishkov, Christophe Gisquet
|
||||
vc1* Kostya Shishkov
|
||||
vcr1.c Michael Niedermayer
|
||||
vda_h264_dec.c Xidorn Quan
|
||||
vima.c Paul B Mahol
|
||||
vmnc.c Kostya Shishkov
|
||||
vorbisdec.c Denes Balatoni, David Conrad
|
||||
vorbisenc.c Oded Shimon
|
||||
vorbis_enc.c Oded Shimon
|
||||
vorbis_dec.c Denes Balatoni, David Conrad
|
||||
vp3* Mike Melanson
|
||||
vp5 Aurelien Jacobs
|
||||
vp6 Aurelien Jacobs
|
||||
vp8 David Conrad, Jason Garrett-Glaser, Ronald Bultje
|
||||
vp9 Ronald Bultje, Clément Bœsch
|
||||
vqavideo.c Mike Melanson
|
||||
wavpack.c Kostya Shishkov
|
||||
wmaprodec.c Sascha Sommer
|
||||
@@ -284,20 +228,14 @@ Codecs:
|
||||
wmv2.c Michael Niedermayer
|
||||
wnv1.c Kostya Shishkov
|
||||
xan.c Mike Melanson
|
||||
xbm* Paul B Mahol
|
||||
xface Stefano Sabatini
|
||||
xl.c Kostya Shishkov
|
||||
xvmc.c Ivan Kalvachev
|
||||
xwd* Paul B Mahol
|
||||
zerocodec.c Derek Buitenhuis
|
||||
zmbv* Kostya Shishkov
|
||||
|
||||
Hardware acceleration:
|
||||
crystalhd.c Philip Langdale
|
||||
dxva2* Laurent Aimar
|
||||
libstagefright.cpp Mohamed Naufal
|
||||
vaapi* Gwenole Beauchesne
|
||||
vda* Sebastien Zwickert
|
||||
vdpau* Carl Eugen Hoyos
|
||||
|
||||
|
||||
@@ -307,66 +245,10 @@ libavdevice
|
||||
libavdevice/avdevice.h
|
||||
|
||||
|
||||
avfoundation.m Thilo Borgmann
|
||||
decklink* Deti Fliegl
|
||||
dshow.c Roger Pack (CC rogerdpack@gmail.com)
|
||||
fbdev_enc.c Lukasz Marek
|
||||
gdigrab.c Roger Pack (CC rogerdpack@gmail.com)
|
||||
iec61883.c Georg Lippitsch
|
||||
lavfi Stefano Sabatini
|
||||
libdc1394.c Roman Shaposhnik
|
||||
opengl_enc.c Lukasz Marek
|
||||
pulse_audio_enc.c Lukasz Marek
|
||||
qtkit.m Thilo Borgmann
|
||||
sdl Stefano Sabatini
|
||||
v4l2.c Giorgio Vazzana
|
||||
v4l2.c Luca Abeni
|
||||
vfwcap.c Ramiro Polla
|
||||
xv.c Lukasz Marek
|
||||
|
||||
libavfilter
|
||||
===========
|
||||
|
||||
Generic parts:
|
||||
graphdump.c Nicolas George
|
||||
|
||||
Filters:
|
||||
af_adelay.c Paul B Mahol
|
||||
af_aecho.c Paul B Mahol
|
||||
af_afade.c Paul B Mahol
|
||||
af_amerge.c Nicolas George
|
||||
af_aphaser.c Paul B Mahol
|
||||
af_aresample.c Michael Niedermayer
|
||||
af_astats.c Paul B Mahol
|
||||
af_astreamsync.c Nicolas George
|
||||
af_atempo.c Pavel Koshevoy
|
||||
af_biquads.c Paul B Mahol
|
||||
af_compand.c Paul B Mahol
|
||||
af_ladspa.c Paul B Mahol
|
||||
af_pan.c Nicolas George
|
||||
af_silenceremove.c Paul B Mahol
|
||||
avf_avectorscope.c Paul B Mahol
|
||||
avf_showcqt.c Muhammad Faiz
|
||||
vf_blend.c Paul B Mahol
|
||||
vf_colorbalance.c Paul B Mahol
|
||||
vf_dejudder.c Nicholas Robbins
|
||||
vf_delogo.c Jean Delvare (CC <khali@linux-fr.org>)
|
||||
vf_drawbox.c/drawgrid Andrey Utkin
|
||||
vf_extractplanes.c Paul B Mahol
|
||||
vf_histogram.c Paul B Mahol
|
||||
vf_hqx.c Clément Bœsch
|
||||
vf_idet.c Pascal Massimino
|
||||
vf_il.c Paul B Mahol
|
||||
vf_lenscorrection.c Daniel Oberhoff
|
||||
vf_mergeplanes.c Paul B Mahol
|
||||
vf_psnr.c Paul B Mahol
|
||||
vf_scale.c Michael Niedermayer
|
||||
vf_separatefields.c Paul B Mahol
|
||||
vf_stereo3d.c Paul B Mahol
|
||||
vf_telecine.c Paul B Mahol
|
||||
vf_yadif.c Michael Niedermayer
|
||||
|
||||
Sources:
|
||||
vsrc_mandelbrot.c Michael Niedermayer
|
||||
|
||||
libavformat
|
||||
===========
|
||||
@@ -381,80 +263,57 @@ Generic parts:
|
||||
Muxers/Demuxers:
|
||||
4xm.c Mike Melanson
|
||||
adtsenc.c Robert Swain
|
||||
afc.c Paul B Mahol
|
||||
aiffdec.c Baptiste Coudurier, Matthieu Bouron
|
||||
aiffenc.c Baptiste Coudurier, Matthieu Bouron
|
||||
aiff.c Baptiste Coudurier
|
||||
ape.c Kostya Shishkov
|
||||
apngdec.c Benoit Fouet
|
||||
ass* Aurelien Jacobs
|
||||
astdec.c Paul B Mahol
|
||||
astenc.c James Almer
|
||||
avi* Michael Niedermayer
|
||||
avisynth.c AvxSynth Team (avxsynth.testing at gmail dot com)
|
||||
avr.c Paul B Mahol
|
||||
bink.c Peter Ross
|
||||
brstm.c Paul B Mahol
|
||||
caf* Peter Ross
|
||||
cdxl.c Paul B Mahol
|
||||
crc.c Michael Niedermayer
|
||||
daud.c Reimar Doeffinger
|
||||
dtshddec.c Paul B Mahol
|
||||
dv.c Roman Shaposhnik
|
||||
dxa.c Kostya Shishkov
|
||||
electronicarts.c Peter Ross
|
||||
epafdec.c Paul B Mahol
|
||||
ffm* Baptiste Coudurier
|
||||
flac* Justin Ruggles
|
||||
flic.c Mike Melanson
|
||||
flvdec.c, flvenc.c Michael Niedermayer
|
||||
gxf.c Reimar Doeffinger
|
||||
gxfenc.c Baptiste Coudurier
|
||||
hls.c Anssi Hannula
|
||||
idcin.c Mike Melanson
|
||||
idroqdec.c Mike Melanson
|
||||
iff.c Jaikrishnan Menon
|
||||
img2*.c Michael Niedermayer
|
||||
ipmovie.c Mike Melanson
|
||||
ircam* Paul B Mahol
|
||||
img2.c Michael Niedermayer
|
||||
iss.c Stefan Gehrer
|
||||
jacosub* Clément Bœsch
|
||||
jvdec.c Peter Ross
|
||||
libmodplug.c Clément Bœsch
|
||||
libnut.c Oded Shimon
|
||||
lmlm4.c Ivo van Poorten
|
||||
lvfdec.c Paul B Mahol
|
||||
lxfdec.c Tomas Härdin
|
||||
matroska.c Aurelien Jacobs
|
||||
matroskadec.c Aurelien Jacobs
|
||||
matroskaenc.c David Conrad
|
||||
matroska subtitles (matroskaenc.c) John Peebles
|
||||
metadata* Aurelien Jacobs
|
||||
mgsts.c Paul B Mahol
|
||||
microdvd* Aurelien Jacobs
|
||||
mm.c Peter Ross
|
||||
mov.c Michael Niedermayer, Baptiste Coudurier
|
||||
movenc.c Baptiste Coudurier, Matthieu Bouron
|
||||
movenc.c Michael Niedermayer, Baptiste Coudurier
|
||||
mpc.c Kostya Shishkov
|
||||
mpeg.c Michael Niedermayer
|
||||
mpegenc.c Michael Niedermayer
|
||||
mpegts.c Marton Balint
|
||||
mpegtsenc.c Baptiste Coudurier
|
||||
mpegts* Baptiste Coudurier
|
||||
msnwc_tcp.c Ramiro Polla
|
||||
mtv.c Reynaldo H. Verdejo Pinochet
|
||||
mxf* Baptiste Coudurier
|
||||
mxfdec.c Tomas Härdin
|
||||
nistspheredec.c Paul B Mahol
|
||||
nsvdec.c Francois Revol
|
||||
nut* Michael Niedermayer
|
||||
nut.c Michael Niedermayer
|
||||
nuv.c Reimar Doeffinger
|
||||
oggdec.c, oggdec.h David Conrad
|
||||
oggenc.c Baptiste Coudurier
|
||||
oggparse*.c David Conrad
|
||||
oma.c Maxim Poliakovski
|
||||
paf.c Paul B Mahol
|
||||
psxstr.c Mike Melanson
|
||||
pva.c Ivo van Poorten
|
||||
pvfdec.c Paul B Mahol
|
||||
r3d.c Baptiste Coudurier
|
||||
raw.c Michael Niedermayer
|
||||
rdt.c Ronald S. Bultje
|
||||
@@ -462,56 +321,28 @@ Muxers/Demuxers:
|
||||
rmdec.c, rmenc.c Ronald S. Bultje, Kostya Shishkov
|
||||
rtmp* Kostya Shishkov
|
||||
rtp.c, rtpenc.c Martin Storsjo
|
||||
rtpdec_h261.*, rtpenc_h261.* Thomas Volkert
|
||||
rtpdec_hevc.*, rtpenc_hevc.* Thomas Volkert
|
||||
rtpdec_asf.* Ronald S. Bultje
|
||||
rtpenc_mpv.*, rtpenc_aac.* Martin Storsjo
|
||||
rtsp.c Luca Barbato
|
||||
sbgdec.c Nicolas George
|
||||
sdp.c Martin Storsjo
|
||||
segafilm.c Mike Melanson
|
||||
segment.c Stefano Sabatini
|
||||
siff.c Kostya Shishkov
|
||||
smacker.c Kostya Shishkov
|
||||
smjpeg* Paul B Mahol
|
||||
spdif* Anssi Hannula
|
||||
srtdec.c Aurelien Jacobs
|
||||
swf.c Baptiste Coudurier
|
||||
takdec.c Paul B Mahol
|
||||
tta.c Alex Beregszaszi
|
||||
txd.c Ivo van Poorten
|
||||
voc.c Aurelien Jacobs
|
||||
wav.c Michael Niedermayer
|
||||
wc3movie.c Mike Melanson
|
||||
webm dash (matroskaenc.c) Vignesh Venkatasubramanian
|
||||
webvtt* Matthew J Heaney
|
||||
westwood.c Mike Melanson
|
||||
wtv.c Peter Ross
|
||||
wv.c Kostya Shishkov
|
||||
wvenc.c Paul B Mahol
|
||||
|
||||
Protocols:
|
||||
bluray.c Petri Hintukainen
|
||||
ftp.c Lukasz Marek
|
||||
http.c Ronald S. Bultje
|
||||
libssh.c Lukasz Marek
|
||||
mms*.c Ronald S. Bultje
|
||||
udp.c Luca Abeni
|
||||
icecast.c Marvin Scholz
|
||||
|
||||
|
||||
libswresample
|
||||
=============
|
||||
|
||||
Generic parts:
|
||||
audioconvert.c Michael Niedermayer
|
||||
dither.c Michael Niedermayer
|
||||
rematrix*.c Michael Niedermayer
|
||||
swresample*.c Michael Niedermayer
|
||||
|
||||
Resamplers:
|
||||
resample*.c Michael Niedermayer
|
||||
soxr_resample.c Rob Sykes
|
||||
|
||||
|
||||
Operating systems / CPU architectures
|
||||
@@ -520,62 +351,40 @@ Operating systems / CPU architectures
|
||||
Alpha Mans Rullgard, Falk Hueffner
|
||||
ARM Mans Rullgard
|
||||
AVR32 Mans Rullgard
|
||||
MIPS Mans Rullgard, Nedeljko Babic
|
||||
MIPS Mans Rullgard
|
||||
Mac OS X / PowerPC Romain Dolbeau, Guillaume Poirier
|
||||
Amiga / PowerPC Colin Ward
|
||||
Linux / PowerPC Luca Barbato
|
||||
Windows MinGW Alex Beregszaszi, Ramiro Polla
|
||||
Windows Cygwin Victor Paesa
|
||||
Windows MSVC Matthew Oliver
|
||||
Windows ICL Matthew Oliver
|
||||
ADI/Blackfin DSP Marc Hoffman
|
||||
Sparc Roman Shaposhnik
|
||||
x86 Michael Niedermayer
|
||||
OS/2 KO Myung-Hun
|
||||
|
||||
|
||||
Releases
|
||||
========
|
||||
GnuPG Fingerprints of maintainers and others who have svn write access
|
||||
======================================================================
|
||||
|
||||
2.5 Michael Niedermayer
|
||||
|
||||
If you want to maintain an older release, please contact us
|
||||
|
||||
|
||||
GnuPG Fingerprints of maintainers and contributors
|
||||
==================================================
|
||||
|
||||
Alexander Strasser 1C96 78B7 83CB 8AA7 9AF5 D1EB A7D8 A57B A876 E58F
|
||||
Anssi Hannula 1A92 FF42 2DD9 8D2E 8AF7 65A9 4278 C520 513D F3CB
|
||||
Anton Khirnov 6D0C 6625 56F8 65D1 E5F5 814B B50A 1241 C067 07AB
|
||||
Ash Hughes 694D 43D2 D180 C7C7 6421 ABD3 A641 D0B7 623D 6029
|
||||
Attila Kinali 11F0 F9A6 A1D2 11F6 C745 D10C 6520 BCDD F2DF E765
|
||||
Baptiste Coudurier 8D77 134D 20CC 9220 201F C5DB 0AC9 325C 5C1A BAAA
|
||||
Ben Littler 3EE3 3723 E560 3214 A8CD 4DEB 2CDB FCE7 768C 8D2C
|
||||
Benoit Fouet B22A 4F4F 43EF 636B BB66 FCDC 0023 AE1E 2985 49C8
|
||||
Clément Bœsch 52D0 3A82 D445 F194 DB8B 2B16 87EE 2CB8 F4B8 FCF9
|
||||
Daniel Verkamp 78A6 07ED 782C 653E C628 B8B9 F0EB 8DD8 2F0E 21C7
|
||||
Diego Biurrun 8227 1E31 B6D9 4994 7427 E220 9CAE D6CC 4757 FCC5
|
||||
FFmpeg release signing key FCF9 86EA 15E6 E293 A564 4F10 B432 2F04 D676 58D8
|
||||
Gwenole Beauchesne 2E63 B3A6 3E44 37E2 017D 2704 53C7 6266 B153 99C4
|
||||
Jaikrishnan Menon 61A1 F09F 01C9 2D45 78E1 C862 25DC 8831 AF70 D368
|
||||
Jean Delvare 7CA6 9F44 60F1 BDC4 1FD2 C858 A552 6B9B B3CD 4E6A
|
||||
Justin Ruggles 3136 ECC0 C10D 6C04 5F43 CA29 FCBE CD2A 3787 1EBF
|
||||
Loren Merritt ABD9 08F4 C920 3F65 D8BE 35D7 1540 DAA7 060F 56DE
|
||||
Lou Logan 7D68 DC73 CBEF EABB 671A B6CF 621C 2E28 82F8 DC3A
|
||||
Luca Barbato 6677 4209 213C 8843 5B67 29E7 E84C 78C2 84E9 0E34
|
||||
Michael Niedermayer 9FF2 128B 147E F673 0BAD F133 611E C787 040B 0FAB
|
||||
Nicolas George 24CE 01CE 9ACC 5CEB 74D8 8D9D B063 D997 36E5 4C93
|
||||
Panagiotis Issaris 6571 13A3 33D9 3726 F728 AA98 F643 B12E ECF3 E029
|
||||
Panagiotis Issaris 515C E262 10A8 FDCE 5481 7B9C 3AD7 D9A5 071D B3A9
|
||||
Peter Ross A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B
|
||||
Reimar Doeffinger C61D 16E5 9E2C D10C 8958 38A4 0899 A2B9 06D4 D9C7
|
||||
Reimar Döffinger C61D 16E5 9E2C D10C 8958 38A4 0899 A2B9 06D4 D9C7
|
||||
Reinhard Tartler 9300 5DC2 7E87 6C37 ED7B CA9A 9808 3544 9453 48A4
|
||||
Reynaldo H. Verdejo Pinochet 6E27 CD34 170C C78E 4D4F 5F40 C18E 077F 3114 452A
|
||||
Robert Swain EE7A 56EA 4A81 A7B5 2001 A521 67FA 362D A2FC 3E71
|
||||
Sascha Sommer 38A0 F88B 868E 9D3A 97D4 D6A0 E823 706F 1E07 0D3C
|
||||
Stefano Sabatini 0D0B AD6B 5330 BBAD D3D6 6A0C 719C 2839 FC43 2D5F
|
||||
Stephan Hilb 4F38 0B3A 5F39 B99B F505 E562 8D5C 5554 4E17 8863
|
||||
Tiancheng "Timothy" Gu 9456 AFC0 814A 8139 E994 8351 7FE6 B095 B582 B0D4
|
||||
Tim Nicholson 38CF DB09 3ED0 F607 8B67 6CED 0C0B FC44 8B0B FC83
|
||||
Tomas Härdin A79D 4E3D F38F 763F 91F5 8B33 A01E 8AE0 41BB 2551
|
||||
Wei Gao 4269 7741 857A 0E60 9EC5 08D2 4744 4EFA 62C1 87B9
|
||||
Stefano Sabatini 9A43 10F8 D32C D33C 48E7 C52C 5DF2 8E4D B2EE 066B
|
||||
Tomas Härdin D133 29CA 4EEC 9DB4 7076 F697 B04B 7403 3313 41FD
|
||||
|
||||
333
Makefile
333
Makefile
@@ -1,87 +1,72 @@
|
||||
MAIN_MAKEFILE=1
|
||||
include config.mak
|
||||
|
||||
vpath %.c $(SRC_PATH)
|
||||
vpath %.cpp $(SRC_PATH)
|
||||
vpath %.h $(SRC_PATH)
|
||||
vpath %.m $(SRC_PATH)
|
||||
vpath %.S $(SRC_PATH)
|
||||
vpath %.asm $(SRC_PATH)
|
||||
vpath %.rc $(SRC_PATH)
|
||||
vpath %.v $(SRC_PATH)
|
||||
vpath %.texi $(SRC_PATH)
|
||||
vpath %/fate_config.sh.template $(SRC_PATH)
|
||||
SRC_DIR = $(SRC_PATH_BARE)
|
||||
|
||||
AVPROGS-$(CONFIG_FFMPEG) += ffmpeg
|
||||
AVPROGS-$(CONFIG_FFPLAY) += ffplay
|
||||
AVPROGS-$(CONFIG_FFPROBE) += ffprobe
|
||||
AVPROGS-$(CONFIG_FFSERVER) += ffserver
|
||||
vpath %.c $(SRC_DIR)
|
||||
vpath %.h $(SRC_DIR)
|
||||
vpath %.S $(SRC_DIR)
|
||||
vpath %.asm $(SRC_DIR)
|
||||
vpath %.v $(SRC_DIR)
|
||||
vpath %.texi $(SRC_PATH_BARE)
|
||||
|
||||
AVPROGS := $(AVPROGS-yes:%=%$(PROGSSUF)$(EXESUF))
|
||||
INSTPROGS = $(AVPROGS-yes:%=%$(PROGSSUF)$(EXESUF))
|
||||
PROGS += $(AVPROGS)
|
||||
PROGS-$(CONFIG_FFMPEG) += ffmpeg
|
||||
PROGS-$(CONFIG_FFPLAY) += ffplay
|
||||
PROGS-$(CONFIG_FFPROBE) += ffprobe
|
||||
PROGS-$(CONFIG_FFSERVER) += ffserver
|
||||
|
||||
AVBASENAMES = ffmpeg ffplay ffprobe ffserver
|
||||
ALLAVPROGS = $(AVBASENAMES:%=%$(PROGSSUF)$(EXESUF))
|
||||
ALLAVPROGS_G = $(AVBASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
|
||||
PROGS := $(PROGS-yes:%=%$(EXESUF))
|
||||
PROGS_G = $(PROGS-yes:%=%_g$(EXESUF))
|
||||
OBJS = $(PROGS-yes:%=%.o) cmdutils.o
|
||||
MANPAGES = $(PROGS-yes:%=doc/%.1)
|
||||
PODPAGES = $(PROGS-yes:%=doc/%.pod)
|
||||
HTMLPAGES = $(PROGS-yes:%=doc/%.html)
|
||||
TOOLS = $(addprefix tools/, $(addsuffix $(EXESUF), cws2fws graph2dot lavfi-showfiltfmts pktdumper probetest qt-faststart trasher))
|
||||
TESTTOOLS = audiogen videogen rotozoom tiny_psnr base64
|
||||
HOSTPROGS := $(TESTTOOLS:%=tests/%)
|
||||
|
||||
$(foreach prog,$(AVBASENAMES),$(eval OBJS-$(prog) += cmdutils.o))
|
||||
$(foreach prog,$(AVBASENAMES),$(eval OBJS-$(prog)-$(CONFIG_OPENCL) += cmdutils_opencl.o))
|
||||
BASENAMES = ffmpeg ffplay ffprobe ffserver
|
||||
ALLPROGS = $(BASENAMES:%=%$(EXESUF))
|
||||
ALLPROGS_G = $(BASENAMES:%=%_g$(EXESUF))
|
||||
ALLMANPAGES = $(BASENAMES:%=%.1)
|
||||
|
||||
OBJS-ffmpeg += ffmpeg_opt.o ffmpeg_filter.o
|
||||
OBJS-ffmpeg-$(HAVE_VDPAU_X11) += ffmpeg_vdpau.o
|
||||
OBJS-ffmpeg-$(HAVE_DXVA2_LIB) += ffmpeg_dxva2.o
|
||||
OBJS-ffmpeg-$(CONFIG_VDA) += ffmpeg_vda.o
|
||||
OBJS-ffserver += ffserver_config.o
|
||||
ALLFFLIBS = avcodec avdevice avfilter avformat avutil postproc swscale
|
||||
|
||||
TESTTOOLS = audiogen videogen rotozoom tiny_psnr tiny_ssim base64
|
||||
HOSTPROGS := $(TESTTOOLS:%=tests/%) doc/print_options
|
||||
TOOLS = qt-faststart trasher uncoded_frame
|
||||
TOOLS-$(CONFIG_ZLIB) += cws2fws
|
||||
|
||||
# $(FFLIBS-yes) needs to be in linking order
|
||||
FFLIBS-$(CONFIG_AVDEVICE) += avdevice
|
||||
FFLIBS-$(CONFIG_AVFILTER) += avfilter
|
||||
FFLIBS-$(CONFIG_AVFORMAT) += avformat
|
||||
FFLIBS-$(CONFIG_AVCODEC) += avcodec
|
||||
FFLIBS-$(CONFIG_AVRESAMPLE) += avresample
|
||||
FFLIBS-$(CONFIG_POSTPROC) += postproc
|
||||
FFLIBS-$(CONFIG_SWRESAMPLE) += swresample
|
||||
FFLIBS-$(CONFIG_SWSCALE) += swscale
|
||||
FFLIBS-$(CONFIG_AVDEVICE) += avdevice
|
||||
FFLIBS-$(CONFIG_AVFILTER) += avfilter
|
||||
FFLIBS-$(CONFIG_AVFORMAT) += avformat
|
||||
FFLIBS-$(CONFIG_AVCODEC) += avcodec
|
||||
FFLIBS-$(CONFIG_POSTPROC) += postproc
|
||||
FFLIBS-$(CONFIG_SWSCALE) += swscale
|
||||
|
||||
FFLIBS := avutil
|
||||
|
||||
DATA_FILES := $(wildcard $(SRC_PATH)/presets/*.ffpreset) $(SRC_PATH)/doc/ffprobe.xsd
|
||||
EXAMPLES_FILES := $(wildcard $(SRC_PATH)/doc/examples/*.c) $(SRC_PATH)/doc/examples/Makefile $(SRC_PATH)/doc/examples/README
|
||||
DATA_FILES := $(wildcard $(SRC_DIR)/ffpresets/*.ffpreset)
|
||||
|
||||
SKIPHEADERS = cmdutils_common_opts.h compat/w32pthreads.h
|
||||
SKIPHEADERS = cmdutils_common_opts.h
|
||||
|
||||
include $(SRC_PATH)/common.mak
|
||||
include common.mak
|
||||
|
||||
FF_LDFLAGS := $(FFLDFLAGS)
|
||||
FF_EXTRALIBS := $(FFEXTRALIBS)
|
||||
FF_DEP_LIBS := $(DEP_LIBS)
|
||||
|
||||
all: $(AVPROGS)
|
||||
all-$(CONFIG_DOC): documentation
|
||||
|
||||
$(TOOLS): %$(EXESUF): %.o $(EXEOBJS)
|
||||
$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS)
|
||||
all: $(FF_DEP_LIBS) $(PROGS)
|
||||
|
||||
tools/cws2fws$(EXESUF): ELIBS = $(ZLIB)
|
||||
tools/uncoded_frame$(EXESUF): $(FF_DEP_LIBS)
|
||||
tools/uncoded_frame$(EXESUF): ELIBS = $(FF_EXTRALIBS)
|
||||
$(PROGS): %$(EXESUF): %_g$(EXESUF)
|
||||
$(CP) $< $@
|
||||
$(STRIP) $@
|
||||
|
||||
config.h: .config
|
||||
.config: $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c))
|
||||
.config: $(wildcard $(FFLIBS:%=$(SRC_DIR)/lib%/all*.c))
|
||||
@-tput bold 2>/dev/null
|
||||
@-printf '\nWARNING: $(?F) newer than config.h, rerun configure\n\n'
|
||||
@-tput sgr0 2>/dev/null
|
||||
|
||||
SUBDIR_VARS := CLEANFILES EXAMPLES FFLIBS HOSTPROGS TESTPROGS TOOLS \
|
||||
HEADERS ARCH_HEADERS BUILT_HEADERS SKIPHEADERS \
|
||||
ARMV5TE-OBJS ARMV6-OBJS ARMV8-OBJS VFP-OBJS NEON-OBJS \
|
||||
ALTIVEC-OBJS MMX-OBJS YASM-OBJS \
|
||||
MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSPR1-OBJS MIPS32R2-OBJS \
|
||||
OBJS SLIBOBJS HOSTOBJS TESTOBJS
|
||||
SUBDIR_VARS := OBJS FFLIBS CLEANFILES DIRS TESTPROGS EXAMPLES SKIPHEADERS \
|
||||
ALTIVEC-OBJS MMX-OBJS NEON-OBJS X86-OBJS YASM-OBJS-FFT YASM-OBJS \
|
||||
HOSTPROGS BUILT_HEADERS TESTOBJS ARCH_HEADERS ARMV6-OBJS
|
||||
|
||||
define RESET
|
||||
$(1) :=
|
||||
@@ -91,54 +76,65 @@ endef
|
||||
define DOSUBDIR
|
||||
$(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
|
||||
SUBDIR := $(1)/
|
||||
include $(SRC_PATH)/$(1)/Makefile
|
||||
-include $(SRC_PATH)/$(1)/$(ARCH)/Makefile
|
||||
-include $(SRC_PATH)/$(1)/$(INTRINSICS)/Makefile
|
||||
include $(SRC_PATH)/library.mak
|
||||
include $(1)/Makefile
|
||||
endef
|
||||
|
||||
$(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
|
||||
|
||||
include $(SRC_PATH)/doc/Makefile
|
||||
ffplay.o: CFLAGS += $(SDL_CFLAGS)
|
||||
ffplay_g$(EXESUF): FF_EXTRALIBS += $(SDL_LIBS)
|
||||
ffserver_g$(EXESUF): FF_LDFLAGS += $(FFSERVERLDFLAGS)
|
||||
|
||||
define DOPROG
|
||||
OBJS-$(1) += $(1).o $(EXEOBJS) $(OBJS-$(1)-yes)
|
||||
$(1)$(PROGSSUF)_g$(EXESUF): $$(OBJS-$(1))
|
||||
$$(OBJS-$(1)): CFLAGS += $(CFLAGS-$(1))
|
||||
$(1)$(PROGSSUF)_g$(EXESUF): LDFLAGS += $(LDFLAGS-$(1))
|
||||
$(1)$(PROGSSUF)_g$(EXESUF): FF_EXTRALIBS += $(LIBS-$(1))
|
||||
-include $$(OBJS-$(1):.o=.d)
|
||||
endef
|
||||
%_g$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS)
|
||||
$(LD) $(FF_LDFLAGS) -o $@ $< cmdutils.o $(FF_EXTRALIBS)
|
||||
|
||||
$(foreach P,$(PROGS),$(eval $(call DOPROG,$(P:$(PROGSSUF)$(EXESUF)=))))
|
||||
alltools: $(TOOLS)
|
||||
|
||||
ffprobe.o cmdutils.o libavcodec/utils.o libavformat/utils.o libavdevice/avdevice.o libavfilter/avfilter.o libavutil/utils.o libpostproc/postprocess.o libswresample/swresample.o libswscale/utils.o : libavutil/ffversion.h
|
||||
tools/%$(EXESUF): tools/%.o
|
||||
$(LD) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
|
||||
|
||||
$(PROGS): %$(PROGSSUF)$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
|
||||
$(CP) $< $@
|
||||
$(STRIP) $@
|
||||
|
||||
%$(PROGSSUF)_g$(EXESUF): %.o $(FF_DEP_LIBS)
|
||||
$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)
|
||||
|
||||
OBJDIRS += tools
|
||||
tools/%.o: tools/%.c
|
||||
$(CC) $(CPPFLAGS) $(CFLAGS) -c $(CC_O) $<
|
||||
|
||||
-include $(wildcard tools/*.d)
|
||||
-include $(wildcard tests/*.d)
|
||||
|
||||
VERSION_SH = $(SRC_PATH)/version.sh
|
||||
GIT_LOG = $(SRC_PATH)/.git/logs/HEAD
|
||||
VERSION_SH = $(SRC_PATH_BARE)/version.sh
|
||||
GIT_LOG = $(SRC_PATH_BARE)/.git/logs/HEAD
|
||||
|
||||
.version: $(wildcard $(GIT_LOG)) $(VERSION_SH) config.mak
|
||||
.version: M=@
|
||||
|
||||
libavutil/ffversion.h .version:
|
||||
$(M)$(VERSION_SH) $(SRC_PATH) libavutil/ffversion.h $(EXTRA_VERSION)
|
||||
version.h .version:
|
||||
$(M)$(VERSION_SH) $(SRC_PATH) version.h $(EXTRA_VERSION)
|
||||
$(Q)touch .version
|
||||
|
||||
# force version.sh to run whenever version might have changed
|
||||
-include .version
|
||||
|
||||
ifdef AVPROGS
|
||||
DOCS = $(addprefix doc/, developer.html faq.html general.html libavfilter.html) $(HTMLPAGES) $(MANPAGES) $(PODPAGES)
|
||||
|
||||
documentation: $(DOCS)
|
||||
|
||||
-include $(wildcard $(DOCS:%=%.d))
|
||||
|
||||
TEXIDEP = awk '/^@include/ { printf "$@: $(@D)/%s\n", $$2 }' <$< >$(@:%=%.d)
|
||||
|
||||
doc/%.html: TAG = HTML
|
||||
doc/%.html: doc/%.texi $(SRC_PATH_BARE)/doc/t2h.init
|
||||
$(Q)$(TEXIDEP)
|
||||
$(M)texi2html -monolithic --init-file $(SRC_PATH_BARE)/doc/t2h.init --output $@ $<
|
||||
|
||||
doc/%.pod: TAG = POD
|
||||
doc/%.pod: doc/%.texi
|
||||
$(Q)$(TEXIDEP)
|
||||
$(M)doc/texi2pod.pl $< $@
|
||||
|
||||
doc/%.1: TAG = MAN
|
||||
doc/%.1: doc/%.pod
|
||||
$(M)pod2man --section=1 --center=" " --release=" " $< > $@
|
||||
|
||||
ifdef PROGS
|
||||
install: install-progs install-data
|
||||
endif
|
||||
|
||||
@@ -147,53 +143,168 @@ install: install-libs install-headers
|
||||
install-libs: install-libs-yes
|
||||
|
||||
install-progs-yes:
|
||||
install-progs-$(CONFIG_DOC): install-man
|
||||
install-progs-$(CONFIG_SHARED): install-libs
|
||||
|
||||
install-progs: install-progs-yes $(AVPROGS)
|
||||
install-progs: install-progs-yes $(PROGS)
|
||||
$(Q)mkdir -p "$(BINDIR)"
|
||||
$(INSTALL) -c -m 755 $(INSTPROGS) "$(BINDIR)"
|
||||
$(INSTALL) -c -m 755 $(PROGS) "$(BINDIR)"
|
||||
|
||||
install-data: $(DATA_FILES) $(EXAMPLES_FILES)
|
||||
$(Q)mkdir -p "$(DATADIR)/examples"
|
||||
install-data: $(DATA_FILES)
|
||||
$(Q)mkdir -p "$(DATADIR)"
|
||||
$(INSTALL) -m 644 $(DATA_FILES) "$(DATADIR)"
|
||||
$(INSTALL) -m 644 $(EXAMPLES_FILES) "$(DATADIR)/examples"
|
||||
|
||||
uninstall: uninstall-libs uninstall-headers uninstall-progs uninstall-data
|
||||
install-man: $(MANPAGES)
|
||||
$(Q)mkdir -p "$(MANDIR)/man1"
|
||||
$(INSTALL) -m 644 $(MANPAGES) "$(MANDIR)/man1"
|
||||
|
||||
uninstall: uninstall-libs uninstall-headers uninstall-progs uninstall-data uninstall-man
|
||||
|
||||
uninstall-progs:
|
||||
$(RM) $(addprefix "$(BINDIR)/", $(ALLAVPROGS))
|
||||
$(RM) $(addprefix "$(BINDIR)/", $(ALLPROGS))
|
||||
|
||||
uninstall-data:
|
||||
$(RM) -r "$(DATADIR)"
|
||||
|
||||
clean::
|
||||
$(RM) $(ALLAVPROGS) $(ALLAVPROGS_G)
|
||||
uninstall-man:
|
||||
$(RM) $(addprefix "$(MANDIR)/man1/",$(ALLMANPAGES))
|
||||
|
||||
testclean:
|
||||
$(RM) -r tests/vsynth1 tests/vsynth2 tests/data
|
||||
$(RM) $(addprefix tests/,$(CLEANSUFFIXES))
|
||||
$(RM) tests/seek_test$(EXESUF) tests/seek_test.o
|
||||
$(RM) $(TESTTOOLS:%=tests/%$(HOSTEXESUF))
|
||||
|
||||
clean:: testclean
|
||||
$(RM) $(ALLPROGS) $(ALLPROGS_G)
|
||||
$(RM) $(CLEANSUFFIXES)
|
||||
$(RM) doc/*.html doc/*.pod doc/*.1 doc/*.d doc/*~
|
||||
$(RM) $(TOOLS)
|
||||
$(RM) $(CLEANSUFFIXES:%=tools/%)
|
||||
$(RM) -r coverage-html
|
||||
$(RM) -rf coverage.info lcov
|
||||
|
||||
distclean::
|
||||
$(RM) $(DISTCLEANSUFFIXES)
|
||||
$(RM) config.* .config libavutil/avconfig.h .version version.h libavutil/ffversion.h libavcodec/codec_names.h
|
||||
$(RM) config.* .version version.h libavutil/avconfig.h
|
||||
|
||||
config:
|
||||
$(SRC_PATH)/configure $(value FFMPEG_CONFIGURATION)
|
||||
|
||||
check: all alltools examples testprogs fate
|
||||
# regression tests
|
||||
|
||||
include $(SRC_PATH)/tests/Makefile
|
||||
check: test
|
||||
|
||||
$(sort $(OBJDIRS)):
|
||||
$(Q)mkdir -p $@
|
||||
fulltest test: codectest lavftest lavfitest seektest
|
||||
|
||||
# Dummy rule to stop make trying to rebuild removed or renamed headers
|
||||
%.h:
|
||||
@:
|
||||
FFSERVER_REFFILE = $(SRC_PATH)/tests/ffserver.regression.ref
|
||||
|
||||
# Disable suffix rules. Most of the builtin rules are suffix rules,
|
||||
# so this saves some time on slow systems.
|
||||
.SUFFIXES:
|
||||
codectest: fate-codec
|
||||
lavftest: fate-lavf
|
||||
lavfitest: fate-lavfi
|
||||
seektest: fate-seek
|
||||
|
||||
.PHONY: all all-yes alltools check *clean config install*
|
||||
.PHONY: testprogs uninstall*
|
||||
AREF = fate-acodec-aref
|
||||
VREF = fate-vsynth1-vref fate-vsynth2-vref
|
||||
REFS = $(AREF) $(VREF)
|
||||
|
||||
$(VREF): ffmpeg$(EXESUF) tests/vsynth1/00.pgm tests/vsynth2/00.pgm
|
||||
$(AREF): ffmpeg$(EXESUF) tests/data/asynth1.sw
|
||||
|
||||
ffservertest: ffserver$(EXESUF) tests/vsynth1/00.pgm tests/data/asynth1.sw
|
||||
@echo
|
||||
@echo "Unfortunately ffserver is broken and therefore its regression"
|
||||
@echo "test fails randomly. Treat the results accordingly."
|
||||
@echo
|
||||
$(SRC_PATH)/tests/ffserver-regression.sh $(FFSERVER_REFFILE) $(SRC_PATH)/tests/ffserver.conf
|
||||
|
||||
tests/vsynth1/00.pgm: tests/videogen$(HOSTEXESUF)
|
||||
@mkdir -p tests/vsynth1
|
||||
$(M)./$< 'tests/vsynth1/'
|
||||
|
||||
tests/vsynth2/00.pgm: tests/rotozoom$(HOSTEXESUF)
|
||||
@mkdir -p tests/vsynth2
|
||||
$(M)./$< 'tests/vsynth2/' $(SRC_PATH)/tests/lena.pnm
|
||||
|
||||
tests/data/asynth1.sw: tests/audiogen$(HOSTEXESUF)
|
||||
@mkdir -p tests/data
|
||||
$(M)./$< $@
|
||||
|
||||
tests/data/asynth1.sw tests/vsynth%/00.pgm: TAG = GEN
|
||||
|
||||
tests/seek_test$(EXESUF): tests/seek_test.o $(FF_DEP_LIBS)
|
||||
$(LD) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
|
||||
|
||||
tools/lavfi-showfiltfmts$(EXESUF): tools/lavfi-showfiltfmts.o $(FF_DEP_LIBS)
|
||||
$(LD) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
|
||||
|
||||
include $(SRC_PATH_BARE)/tests/fate.mak
|
||||
include $(SRC_PATH_BARE)/tests/fate2.mak
|
||||
|
||||
include $(SRC_PATH_BARE)/tests/fate/aac.mak
|
||||
include $(SRC_PATH_BARE)/tests/fate/als.mak
|
||||
include $(SRC_PATH_BARE)/tests/fate/fft.mak
|
||||
include $(SRC_PATH_BARE)/tests/fate/h264.mak
|
||||
include $(SRC_PATH_BARE)/tests/fate/mp3.mak
|
||||
include $(SRC_PATH_BARE)/tests/fate/vorbis.mak
|
||||
include $(SRC_PATH_BARE)/tests/fate/vp8.mak
|
||||
|
||||
FATE_ACODEC = $(ACODEC_TESTS:%=fate-acodec-%)
|
||||
FATE_VSYNTH1 = $(VCODEC_TESTS:%=fate-vsynth1-%)
|
||||
FATE_VSYNTH2 = $(VCODEC_TESTS:%=fate-vsynth2-%)
|
||||
FATE_VCODEC = $(FATE_VSYNTH1) $(FATE_VSYNTH2)
|
||||
FATE_LAVF = $(LAVF_TESTS:%=fate-lavf-%)
|
||||
FATE_LAVFI = $(LAVFI_TESTS:%=fate-lavfi-%)
|
||||
FATE_SEEK = $(SEEK_TESTS:seek_%=fate-seek-%)
|
||||
|
||||
FATE = $(FATE_ACODEC) \
|
||||
$(FATE_VCODEC) \
|
||||
$(FATE_LAVF) \
|
||||
$(FATE_SEEK) \
|
||||
|
||||
FATE-$(CONFIG_AVFILTER) += $(FATE_LAVFI)
|
||||
|
||||
FATE += $(FATE-yes)
|
||||
|
||||
$(filter-out %-aref,$(FATE_ACODEC)): $(AREF)
|
||||
$(filter-out %-vref,$(FATE_VCODEC)): $(VREF)
|
||||
$(FATE_LAVF): $(REFS)
|
||||
$(FATE_LAVFI): $(REFS) tools/lavfi-showfiltfmts$(EXESUF)
|
||||
$(FATE_SEEK): fate-codec fate-lavf tests/seek_test$(EXESUF)
|
||||
|
||||
$(FATE_ACODEC): CMD = codectest acodec
|
||||
$(FATE_VSYNTH1): CMD = codectest vsynth1
|
||||
$(FATE_VSYNTH2): CMD = codectest vsynth2
|
||||
$(FATE_LAVF): CMD = lavftest
|
||||
$(FATE_LAVFI): CMD = lavfitest
|
||||
$(FATE_SEEK): CMD = seektest
|
||||
|
||||
fate-codec: fate-acodec fate-vcodec
|
||||
fate-acodec: $(FATE_ACODEC)
|
||||
fate-vcodec: $(FATE_VCODEC)
|
||||
fate-lavf: $(FATE_LAVF)
|
||||
fate-lavfi: $(FATE_LAVFI)
|
||||
fate-seek: $(FATE_SEEK)
|
||||
|
||||
ifdef SAMPLES
|
||||
FATE += $(FATE_TESTS) $(FATE_TESTS-yes)
|
||||
fate-rsync:
|
||||
rsync -vaLW rsync://fate-suite.libav.org/fate-suite/ $(SAMPLES)
|
||||
else
|
||||
fate-rsync:
|
||||
@echo "use 'make fate-rsync SAMPLES=/path/to/samples' to sync the fate suite"
|
||||
$(FATE_TESTS):
|
||||
@echo "SAMPLES not specified, cannot run FATE. See doc/fate.txt for more information."
|
||||
endif
|
||||
|
||||
FATE_UTILS = base64 tiny_psnr
|
||||
|
||||
fate: $(FATE)
|
||||
|
||||
$(FATE): ffmpeg$(EXESUF) $(FATE_UTILS:%=tests/%$(HOSTEXESUF))
|
||||
@echo "TEST $(@:fate-%=%)"
|
||||
$(Q)$(SRC_PATH)/tests/fate-run.sh $@ "$(SAMPLES)" "$(TARGET_EXEC)" "$(TARGET_PATH)" '$(CMD)' '$(CMP)' '$(REF)' '$(FUZZ)' '$(THREADS)' '$(THREAD_TYPE)'
|
||||
|
||||
fate-list:
|
||||
@printf '%s\n' $(sort $(FATE))
|
||||
|
||||
.PHONY: all alltools *clean check config documentation examples install*
|
||||
.PHONY: *test testprogs uninstall*
|
||||
|
||||
12
README
Normal file
12
README
Normal file
@@ -0,0 +1,12 @@
|
||||
FFmpeg README
|
||||
-------------
|
||||
|
||||
1) Documentation
|
||||
----------------
|
||||
|
||||
* Read the documentation in the doc/ directory.
|
||||
|
||||
2) Licensing
|
||||
------------
|
||||
|
||||
* See the LICENSE file.
|
||||
40
README.md
40
README.md
@@ -1,40 +0,0 @@
|
||||
FFmpeg README
|
||||
=============
|
||||
|
||||
FFmpeg is a collection of libraries and tools to process multimedia content
|
||||
such as audio, video, subtitles and related metadata.
|
||||
|
||||
## Libraries
|
||||
|
||||
* `libavcodec` provides implementation of a wider range of codecs.
|
||||
* `libavformat` implements streaming protocols, container formats and basic I/O access.
|
||||
* `libavutil` includes hashers, decompressors and miscellaneous utility functions.
|
||||
* `libavfilter` provides a mean to alter decoded Audio and Video through chain of filters.
|
||||
* `libavdevice` provides an abstraction to access capture and playback devices.
|
||||
* `libswresample` implements audio mixing and resampling routines.
|
||||
* `libswscale` implements color conversion and scaling routines.
|
||||
|
||||
## Tools
|
||||
|
||||
* [ffmpeg](http://ffmpeg.org/ffmpeg.html) is a command line toolbox to
|
||||
manipulate, convert and stream multimedia content.
|
||||
* [ffplay](http://ffmpeg.org/ffplay.html) is a minimalistic multimedia player.
|
||||
* [ffprobe](http://ffmpeg.org/ffprobe.html) is a simple analisys tool to inspect
|
||||
multimedia content.
|
||||
* Additional small tools such as `aviocat`, `ismindex` and `qt-faststart`.
|
||||
|
||||
## Documentation
|
||||
|
||||
The offline documentation is available in the **doc/** directory.
|
||||
|
||||
The online documentation is available in the main [website](http://ffmpeg.org)
|
||||
and in the [wiki](http://trac.ffmpeg.org).
|
||||
|
||||
### Examples
|
||||
|
||||
Coding examples are available in the **doc/examples** directory.
|
||||
|
||||
## License
|
||||
|
||||
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under
|
||||
GPL. Please refer to the LICENSE file for detailed information.
|
||||
101
RELEASE_NOTES
101
RELEASE_NOTES
@@ -1,101 +0,0 @@
|
||||
┌────────────────────────────────────────┐
|
||||
│ RELEASE NOTES for FFmpeg 2.5 "Bohr" │
|
||||
└────────────────────────────────────────┘
|
||||
|
||||
The FFmpeg Project proudly presents FFmpeg 2.5 "Bohr", 2.5 months after the
|
||||
release of 2.4.
|
||||
|
||||
The most important new features are AVFoundation screen-grabbing support,
|
||||
animated WebP decoding support, and Animated PNG support. In addition, many
|
||||
exciting features for video streaming are also implemented, including MPEG-
|
||||
DASH fragmenting muxer, HEVC RTP payload muxer, and UDP Lite support.
|
||||
|
||||
As usual, if you have any question on this release or any FFmpeg related
|
||||
topic, feel free to join us on the #ffmpeg IRC channel (on
|
||||
irc.freenode.net).
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ 🔨 API Information │
|
||||
└────────────────────────────┘
|
||||
|
||||
FFmpeg 2.5 includes the following library versions:
|
||||
|
||||
• libavutil 54.15.100
|
||||
• libavcodec 56.13.100
|
||||
• libavformat 56.15.102
|
||||
• libavdevice 56. 3.100
|
||||
• libavfilter 5. 2.103
|
||||
• libswscale 3. 1.101
|
||||
• libswresample 1. 1.100
|
||||
• libpostproc 53. 3.100
|
||||
|
||||
Important API changes since 2.4:
|
||||
|
||||
• avpriv_dv_frame_profile2() has been deprecated
|
||||
|
||||
|
||||
Please refer to the doc/APIchanges file for more information.
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ ★ List of New Features │
|
||||
└────────────────────────────┘
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ ffprobe │
|
||||
└────────────────────────────┘
|
||||
|
||||
• -show_pixel_formats option
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ ffserver │
|
||||
└────────────────────────────┘
|
||||
|
||||
• codec private options support
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ libavcodec │
|
||||
└────────────────────────────┘
|
||||
|
||||
• STL subtitle decoder
|
||||
• libutvideo YUV 4:2:2 10bit support
|
||||
• animated WebP decoding support
|
||||
• zygoaudio decoding support
|
||||
• APNG decoder
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ libavdevice │
|
||||
└────────────────────────────┘
|
||||
|
||||
• XCB-based screen-grabber
|
||||
• AVFoundation screen capturing support
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ libavformat │
|
||||
└────────────────────────────┘
|
||||
|
||||
• HEVC/H.265 RTP payload format (draft v6) packetizer
|
||||
• SUP/PGS subtitle demuxer
|
||||
• STL subtitle demuxer
|
||||
• UDP-Lite support (RFC 3828)
|
||||
• MPEG-DASH segmenting muxer, which allows creating DASH compatible
|
||||
fragmented MP4
|
||||
• WebP muxer
|
||||
• APNG demuxer
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ libavfilter │
|
||||
└────────────────────────────┘
|
||||
|
||||
• xBR scaling filter
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ libavutil │
|
||||
└────────────────────────────┘
|
||||
|
||||
• CAST128 symmetric block cipher, ECB mode
|
||||
|
||||
┌────────────────────────────┐
|
||||
│ libpostproc │
|
||||
└────────────────────────────┘
|
||||
|
||||
• visualization support
|
||||
15
arch.mak
15
arch.mak
@@ -1,15 +0,0 @@
|
||||
OBJS-$(HAVE_ARMV5TE) += $(ARMV5TE-OBJS) $(ARMV5TE-OBJS-yes)
|
||||
OBJS-$(HAVE_ARMV6) += $(ARMV6-OBJS) $(ARMV6-OBJS-yes)
|
||||
OBJS-$(HAVE_ARMV8) += $(ARMV8-OBJS) $(ARMV8-OBJS-yes)
|
||||
OBJS-$(HAVE_VFP) += $(VFP-OBJS) $(VFP-OBJS-yes)
|
||||
OBJS-$(HAVE_NEON) += $(NEON-OBJS) $(NEON-OBJS-yes)
|
||||
|
||||
OBJS-$(HAVE_MIPSFPU) += $(MIPSFPU-OBJS) $(MIPSFPU-OBJS-yes)
|
||||
OBJS-$(HAVE_MIPS32R2) += $(MIPS32R2-OBJS) $(MIPS32R2-OBJS-yes)
|
||||
OBJS-$(HAVE_MIPSDSPR1) += $(MIPSDSPR1-OBJS) $(MIPSDSPR1-OBJS-yes)
|
||||
OBJS-$(HAVE_MIPSDSPR2) += $(MIPSDSPR2-OBJS) $(MIPSDSPR2-OBJS-yes)
|
||||
|
||||
OBJS-$(HAVE_ALTIVEC) += $(ALTIVEC-OBJS) $(ALTIVEC-OBJS-yes)
|
||||
|
||||
OBJS-$(HAVE_MMX) += $(MMX-OBJS) $(MMX-OBJS-yes)
|
||||
OBJS-$(HAVE_YASM) += $(YASM-OBJS) $(YASM-OBJS-yes)
|
||||
2224
cmdutils.c
2224
cmdutils.c
File diff suppressed because it is too large
Load Diff
399
cmdutils.h
399
cmdutils.h
@@ -24,13 +24,12 @@
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#include "config.h"
|
||||
#include "libavcodec/avcodec.h"
|
||||
#include "libavfilter/avfilter.h"
|
||||
#include "libavformat/avformat.h"
|
||||
#include "libswscale/swscale.h"
|
||||
|
||||
#ifdef _WIN32
|
||||
#ifdef __MINGW32__
|
||||
#undef main /* We don't want SDL to override our main() */
|
||||
#endif
|
||||
|
||||
@@ -44,22 +43,11 @@ extern const char program_name[];
|
||||
*/
|
||||
extern const int program_birth_year;
|
||||
|
||||
extern const char **opt_names;
|
||||
extern AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
|
||||
extern AVFormatContext *avformat_opts;
|
||||
extern struct SwsContext *sws_opts;
|
||||
extern AVDictionary *swr_opts;
|
||||
extern AVDictionary *format_opts, *codec_opts, *resample_opts;
|
||||
extern int hide_banner;
|
||||
|
||||
/**
|
||||
* Register a program-specific cleanup routine.
|
||||
*/
|
||||
void register_exit(void (*cb)(int ret));
|
||||
|
||||
/**
|
||||
* Wraps exit with a program-specific cleanup routine.
|
||||
*/
|
||||
void exit_program(int ret) av_noreturn;
|
||||
extern AVDictionary *format_opts, *video_opts, *audio_opts, *sub_opts;
|
||||
|
||||
/**
|
||||
* Initialize the cmdutils option system, in particular
|
||||
@@ -78,38 +66,21 @@ void uninit_opts(void);
|
||||
*/
|
||||
void log_callback_help(void* ptr, int level, const char* fmt, va_list vl);
|
||||
|
||||
/**
|
||||
* Override the cpuflags.
|
||||
*/
|
||||
int opt_cpuflags(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Fallback for options that are not explicitly handled, these will be
|
||||
* parsed through AVOptions.
|
||||
*/
|
||||
int opt_default(void *optctx, const char *opt, const char *arg);
|
||||
int opt_default(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Set the libav* libraries log level.
|
||||
*/
|
||||
int opt_loglevel(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
int opt_report(const char *opt);
|
||||
|
||||
int opt_max_alloc(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
int opt_codec_debug(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
#if CONFIG_OPENCL
|
||||
int opt_opencl(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
int opt_opencl_bench(void *optctx, const char *opt, const char *arg);
|
||||
#endif
|
||||
int opt_loglevel(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Limit the execution time.
|
||||
*/
|
||||
int opt_timelimit(void *optctx, const char *opt, const char *arg);
|
||||
int opt_timelimit(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Parse a string and return its corresponding value as a double.
|
||||
@@ -117,15 +88,14 @@ int opt_timelimit(void *optctx, const char *opt, const char *arg);
|
||||
* parsed or the corresponding value is invalid.
|
||||
*
|
||||
* @param context the context of the value to be set (e.g. the
|
||||
* corresponding command line option name)
|
||||
* corresponding commandline option name)
|
||||
* @param numstr the string to be parsed
|
||||
* @param type the type (OPT_INT64 or OPT_FLOAT) as which the
|
||||
* string should be parsed
|
||||
* @param min the minimum valid accepted value
|
||||
* @param max the maximum valid accepted value
|
||||
*/
|
||||
double parse_number_or_die(const char *context, const char *numstr, int type,
|
||||
double min, double max);
|
||||
double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max);
|
||||
|
||||
/**
|
||||
* Parse a string specifying a time and return its corresponding
|
||||
@@ -133,29 +103,17 @@ double parse_number_or_die(const char *context, const char *numstr, int type,
|
||||
* the string cannot be correctly parsed.
|
||||
*
|
||||
* @param context the context of the value to be set (e.g. the
|
||||
* corresponding command line option name)
|
||||
* corresponding commandline option name)
|
||||
* @param timestr the string to be parsed
|
||||
* @param is_duration a flag which tells how to interpret timestr, if
|
||||
* not zero timestr is interpreted as a duration, otherwise as a
|
||||
* date
|
||||
*
|
||||
* @see av_parse_time()
|
||||
* @see parse_date()
|
||||
*/
|
||||
int64_t parse_time_or_die(const char *context, const char *timestr,
|
||||
int is_duration);
|
||||
int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration);
|
||||
|
||||
typedef struct SpecifierOpt {
|
||||
char *specifier; /**< stream/chapter/program/... specifier */
|
||||
union {
|
||||
uint8_t *str;
|
||||
int i;
|
||||
int64_t i64;
|
||||
float f;
|
||||
double dbl;
|
||||
} u;
|
||||
} SpecifierOpt;
|
||||
|
||||
typedef struct OptionDef {
|
||||
typedef struct {
|
||||
const char *name;
|
||||
int flags;
|
||||
#define HAS_ARG 0x0001
|
||||
@@ -164,230 +122,38 @@ typedef struct OptionDef {
|
||||
#define OPT_STRING 0x0008
|
||||
#define OPT_VIDEO 0x0010
|
||||
#define OPT_AUDIO 0x0020
|
||||
#define OPT_GRAB 0x0040
|
||||
#define OPT_INT 0x0080
|
||||
#define OPT_FLOAT 0x0100
|
||||
#define OPT_SUBTITLE 0x0200
|
||||
#define OPT_INT64 0x0400
|
||||
#define OPT_EXIT 0x0800
|
||||
#define OPT_DATA 0x1000
|
||||
#define OPT_PERFILE 0x2000 /* the option is per-file (currently ffmpeg-only).
|
||||
implied by OPT_OFFSET or OPT_SPEC */
|
||||
#define OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */
|
||||
#define OPT_SPEC 0x8000 /* option is to be stored in an array of SpecifierOpt.
|
||||
Implies OPT_OFFSET. Next element after the offset is
|
||||
an int containing element count in the array. */
|
||||
#define OPT_TIME 0x10000
|
||||
#define OPT_DOUBLE 0x20000
|
||||
#define OPT_INPUT 0x40000
|
||||
#define OPT_OUTPUT 0x80000
|
||||
union {
|
||||
void *dst_ptr;
|
||||
int (*func_arg)(void *, const char *, const char *);
|
||||
size_t off;
|
||||
int *int_arg;
|
||||
char **str_arg;
|
||||
float *float_arg;
|
||||
int (*func_arg)(const char *, const char *);
|
||||
int64_t *int64_arg;
|
||||
} u;
|
||||
const char *help;
|
||||
const char *argname;
|
||||
} OptionDef;
|
||||
|
||||
/**
|
||||
* Print help for all options matching specified flags.
|
||||
*
|
||||
* @param options a list of options
|
||||
* @param msg title of this group. Only printed if at least one option matches.
|
||||
* @param req_flags print only options which have all those flags set.
|
||||
* @param rej_flags don't print options which have any of those flags set.
|
||||
* @param alt_flags print only options that have at least one of those flags set
|
||||
*/
|
||||
void show_help_options(const OptionDef *options, const char *msg, int req_flags,
|
||||
int rej_flags, int alt_flags);
|
||||
|
||||
/**
|
||||
* Show help for all options with given flags in class and all its
|
||||
* children.
|
||||
*/
|
||||
void show_help_children(const AVClass *class, int flags);
|
||||
|
||||
/**
|
||||
* Per-fftool specific help handler. Implemented in each
|
||||
* fftool, called by show_help().
|
||||
*/
|
||||
void show_help_default(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Generic -h handler common to all fftools.
|
||||
*/
|
||||
int show_help(void *optctx, const char *opt, const char *arg);
|
||||
void show_help_options(const OptionDef *options, const char *msg, int mask, int value);
|
||||
|
||||
/**
|
||||
* Parse the command line arguments.
|
||||
*
|
||||
* @param optctx an opaque options context
|
||||
* @param argc number of command line arguments
|
||||
* @param argv values of command line arguments
|
||||
* @param options Array with the definitions required to interpret every
|
||||
* option of the form: -option_name [argument]
|
||||
* @param parse_arg_function Name of the function called to process every
|
||||
* argument without a leading option name flag. NULL if such arguments do
|
||||
* not have to be processed.
|
||||
*/
|
||||
void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
|
||||
void (* parse_arg_function)(void *optctx, const char*));
|
||||
void parse_options(int argc, char **argv, const OptionDef *options,
|
||||
int (* parse_arg_function)(const char *opt, const char *arg));
|
||||
|
||||
/**
|
||||
* Parse one given option.
|
||||
*
|
||||
* @return on success 1 if arg was consumed, 0 otherwise; negative number on error
|
||||
*/
|
||||
int parse_option(void *optctx, const char *opt, const char *arg,
|
||||
const OptionDef *options);
|
||||
|
||||
/**
|
||||
* An option extracted from the commandline.
|
||||
* Cannot use AVDictionary because of options like -map which can be
|
||||
* used multiple times.
|
||||
*/
|
||||
typedef struct Option {
|
||||
const OptionDef *opt;
|
||||
const char *key;
|
||||
const char *val;
|
||||
} Option;
|
||||
|
||||
typedef struct OptionGroupDef {
|
||||
/**< group name */
|
||||
const char *name;
|
||||
/**
|
||||
* Option to be used as group separator. Can be NULL for groups which
|
||||
* are terminated by a non-option argument (e.g. ffmpeg output files)
|
||||
*/
|
||||
const char *sep;
|
||||
/**
|
||||
* Option flags that must be set on each option that is
|
||||
* applied to this group
|
||||
*/
|
||||
int flags;
|
||||
} OptionGroupDef;
|
||||
|
||||
typedef struct OptionGroup {
|
||||
const OptionGroupDef *group_def;
|
||||
const char *arg;
|
||||
|
||||
Option *opts;
|
||||
int nb_opts;
|
||||
|
||||
AVDictionary *codec_opts;
|
||||
AVDictionary *format_opts;
|
||||
AVDictionary *resample_opts;
|
||||
struct SwsContext *sws_opts;
|
||||
AVDictionary *swr_opts;
|
||||
} OptionGroup;
|
||||
|
||||
/**
|
||||
* A list of option groups that all have the same group type
|
||||
* (e.g. input files or output files)
|
||||
*/
|
||||
typedef struct OptionGroupList {
|
||||
const OptionGroupDef *group_def;
|
||||
|
||||
OptionGroup *groups;
|
||||
int nb_groups;
|
||||
} OptionGroupList;
|
||||
|
||||
typedef struct OptionParseContext {
|
||||
OptionGroup global_opts;
|
||||
|
||||
OptionGroupList *groups;
|
||||
int nb_groups;
|
||||
|
||||
/* parsing state */
|
||||
OptionGroup cur_group;
|
||||
} OptionParseContext;
|
||||
|
||||
/**
|
||||
* Parse an options group and write results into optctx.
|
||||
*
|
||||
* @param optctx an app-specific options context. NULL for global options group
|
||||
*/
|
||||
int parse_optgroup(void *optctx, OptionGroup *g);
|
||||
|
||||
/**
|
||||
* Split the commandline into an intermediate form convenient for further
|
||||
* processing.
|
||||
*
|
||||
* The commandline is assumed to be composed of options which either belong to a
|
||||
* group (those with OPT_SPEC, OPT_OFFSET or OPT_PERFILE) or are global
|
||||
* (everything else).
|
||||
*
|
||||
* A group (defined by an OptionGroupDef struct) is a sequence of options
|
||||
* terminated by either a group separator option (e.g. -i) or a parameter that
|
||||
* is not an option (doesn't start with -). A group without a separator option
|
||||
* must always be first in the supplied groups list.
|
||||
*
|
||||
* All options within the same group are stored in one OptionGroup struct in an
|
||||
* OptionGroupList, all groups with the same group definition are stored in one
|
||||
* OptionGroupList in OptionParseContext.groups. The order of group lists is the
|
||||
* same as the order of group definitions.
|
||||
*/
|
||||
int split_commandline(OptionParseContext *octx, int argc, char *argv[],
|
||||
const OptionDef *options,
|
||||
const OptionGroupDef *groups, int nb_groups);
|
||||
|
||||
/**
|
||||
* Free all allocated memory in an OptionParseContext.
|
||||
*/
|
||||
void uninit_parse_context(OptionParseContext *octx);
|
||||
|
||||
/**
|
||||
* Find the '-loglevel' option in the command line args and apply it.
|
||||
*/
|
||||
void parse_loglevel(int argc, char **argv, const OptionDef *options);
|
||||
|
||||
/**
|
||||
* Return index of option opt in argv or 0 if not found.
|
||||
*/
|
||||
int locate_option(int argc, char **argv, const OptionDef *options,
|
||||
const char *optname);
|
||||
|
||||
/**
|
||||
* Check if the given stream matches a stream specifier.
|
||||
*
|
||||
* @param s Corresponding format context.
|
||||
* @param st Stream from s to be checked.
|
||||
* @param spec A stream specifier of the [v|a|s|d]:[\<stream index\>] form.
|
||||
*
|
||||
* @return 1 if the stream matches, 0 if it doesn't, <0 on error
|
||||
*/
|
||||
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec);
|
||||
|
||||
/**
|
||||
* Filter out options for given codec.
|
||||
*
|
||||
* Create a new options dictionary containing only the options from
|
||||
* opts which apply to the codec with ID codec_id.
|
||||
*
|
||||
* @param opts dictionary to place options in
|
||||
* @param codec_id ID of the codec that should be filtered for
|
||||
* @param s Corresponding format context.
|
||||
* @param st A stream from s for which the options should be filtered.
|
||||
* @param codec The particular codec for which the options should be filtered.
|
||||
* If null, the default one is looked up according to the codec id.
|
||||
* @return a pointer to the created dictionary
|
||||
*/
|
||||
AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
|
||||
AVFormatContext *s, AVStream *st, AVCodec *codec);
|
||||
|
||||
/**
|
||||
* Setup AVCodecContext options for avformat_find_stream_info().
|
||||
*
|
||||
* Create an array of dictionaries, one dictionary for each stream
|
||||
* contained in s.
|
||||
* Each dictionary will contain the options from codec_opts which can
|
||||
* be applied to the corresponding stream codec context.
|
||||
*
|
||||
* @return pointer to the created array of dictionaries, NULL if it
|
||||
* cannot be created
|
||||
*/
|
||||
AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
|
||||
AVDictionary *codec_opts);
|
||||
void set_context_opts(void *ctx, void *opts_ctx, int flags, AVCodec *codec);
|
||||
|
||||
/**
|
||||
* Print an error message to stderr, indicating filename and a human
|
||||
@@ -405,7 +171,7 @@ void print_error(const char *filename, int err);
|
||||
* current version of the repository and of the libav* libraries used by
|
||||
* the program.
|
||||
*/
|
||||
void show_banner(int argc, char **argv, const OptionDef *options);
|
||||
void show_banner(void);
|
||||
|
||||
/**
|
||||
* Print the version of the program to stdout. The version message
|
||||
@@ -413,115 +179,56 @@ void show_banner(int argc, char **argv, const OptionDef *options);
|
||||
* libraries.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_version(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print the build configuration of the program to stdout. The contents
|
||||
* depend on the definition of FFMPEG_CONFIGURATION.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_buildconf(void *optctx, const char *opt, const char *arg);
|
||||
int opt_version(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print the license of the program to stdout. The license depends on
|
||||
* the license of the libraries compiled into the program.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_license(void *optctx, const char *opt, const char *arg);
|
||||
int opt_license(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the formats supported by the
|
||||
* program (including devices).
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_formats(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the devices supported by the
|
||||
* program.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_devices(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
#if CONFIG_AVDEVICE
|
||||
/**
|
||||
* Print a listing containing audodetected sinks of the output device.
|
||||
* Device name with options may be passed as an argument to limit results.
|
||||
*/
|
||||
int show_sinks(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing audodetected sources of the input device.
|
||||
* Device name with options may be passed as an argument to limit results.
|
||||
*/
|
||||
int show_sources(void *optctx, const char *opt, const char *arg);
|
||||
#endif
|
||||
int opt_formats(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the codecs supported by the
|
||||
* program.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_codecs(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the decoders supported by the
|
||||
* program.
|
||||
*/
|
||||
int show_decoders(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the encoders supported by the
|
||||
* program.
|
||||
*/
|
||||
int show_encoders(void *optctx, const char *opt, const char *arg);
|
||||
int opt_codecs(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the filters supported by the
|
||||
* program.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_filters(void *optctx, const char *opt, const char *arg);
|
||||
int opt_filters(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the bit stream filters supported by the
|
||||
* program.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_bsfs(void *optctx, const char *opt, const char *arg);
|
||||
int opt_bsfs(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the protocols supported by the
|
||||
* program.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_protocols(void *optctx, const char *opt, const char *arg);
|
||||
int opt_protocols(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the pixel formats supported by the
|
||||
* program.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_pix_fmts(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the standard channel layouts supported by
|
||||
* the program.
|
||||
* This option processing function does not utilize the arguments.
|
||||
*/
|
||||
int show_layouts(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the sample formats supported by the
|
||||
* program.
|
||||
*/
|
||||
int show_sample_fmts(void *optctx, const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Print a listing containing all the color names and values recognized
|
||||
* by the program.
|
||||
*/
|
||||
int show_colors(void *optctx, const char *opt, const char *arg);
|
||||
int opt_pix_fmts(const char *opt, const char *arg);
|
||||
|
||||
/**
|
||||
* Return a positive value if a line read from standard input
|
||||
@@ -533,13 +240,12 @@ int read_yesno(void);
|
||||
* Read the file with name filename, and put its content in a newly
|
||||
* allocated 0-terminated buffer.
|
||||
*
|
||||
* @param filename file to read from
|
||||
* @param bufptr location where pointer to buffer is returned
|
||||
* @param size location where size of buffer is returned
|
||||
* @return >= 0 in case of success, a negative value corresponding to an
|
||||
* @return 0 in case of success, a negative value corresponding to an
|
||||
* AVERROR error code in case of failure.
|
||||
*/
|
||||
int cmdutils_read_file(const char *filename, char **bufptr, size_t *size);
|
||||
int read_file(const char *filename, char **bufptr, size_t *size);
|
||||
|
||||
/**
|
||||
* Get a file corresponding to a preset file.
|
||||
@@ -550,7 +256,7 @@ int cmdutils_read_file(const char *filename, char **bufptr, size_t *size);
|
||||
* at configuration time or in a "ffpresets" folder along the executable
|
||||
* on win32, in that order. If no such file is found and
|
||||
* codec_name is defined, then search for a file named
|
||||
* codec_name-preset_name.avpreset in the above-mentioned directories.
|
||||
* codec_name-preset_name.ffpreset in the above-mentioned directories.
|
||||
*
|
||||
* @param filename buffer where the name of the found filename is written
|
||||
* @param filename_size size in bytes of the filename buffer
|
||||
@@ -562,39 +268,4 @@ int cmdutils_read_file(const char *filename, char **bufptr, size_t *size);
|
||||
FILE *get_preset_file(char *filename, size_t filename_size,
|
||||
const char *preset_name, int is_path, const char *codec_name);
|
||||
|
||||
/**
|
||||
* Realloc array to hold new_size elements of elem_size.
|
||||
* Calls exit() on failure.
|
||||
*
|
||||
* @param array array to reallocate
|
||||
* @param elem_size size in bytes of each element
|
||||
* @param size new element count will be written here
|
||||
* @param new_size number of elements to place in reallocated array
|
||||
* @return reallocated array
|
||||
*/
|
||||
void *grow_array(void *array, int elem_size, int *size, int new_size);
|
||||
|
||||
#define media_type_string av_get_media_type_string
|
||||
|
||||
#define GROW_ARRAY(array, nb_elems)\
|
||||
array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1)
|
||||
|
||||
#define GET_PIX_FMT_NAME(pix_fmt)\
|
||||
const char *name = av_get_pix_fmt_name(pix_fmt);
|
||||
|
||||
#define GET_SAMPLE_FMT_NAME(sample_fmt)\
|
||||
const char *name = av_get_sample_fmt_name(sample_fmt)
|
||||
|
||||
#define GET_SAMPLE_RATE_NAME(rate)\
|
||||
char name[16];\
|
||||
snprintf(name, sizeof(name), "%d", rate);
|
||||
|
||||
#define GET_CH_LAYOUT_NAME(ch_layout)\
|
||||
char name[16];\
|
||||
snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
|
||||
|
||||
#define GET_CH_LAYOUT_DESC(ch_layout)\
|
||||
char name[128];\
|
||||
av_get_channel_layout_string(name, sizeof(name), 0, ch_layout);
|
||||
|
||||
#endif /* CMDUTILS_H */
|
||||
#endif /* FFMPEG_CMDUTILS_H */
|
||||
|
||||
@@ -1,35 +1,13 @@
|
||||
{ "L" , OPT_EXIT, {.func_arg = show_license}, "show license" },
|
||||
{ "h" , OPT_EXIT, {.func_arg = show_help}, "show help", "topic" },
|
||||
{ "?" , OPT_EXIT, {.func_arg = show_help}, "show help", "topic" },
|
||||
{ "help" , OPT_EXIT, {.func_arg = show_help}, "show help", "topic" },
|
||||
{ "-help" , OPT_EXIT, {.func_arg = show_help}, "show help", "topic" },
|
||||
{ "version" , OPT_EXIT, {.func_arg = show_version}, "show version" },
|
||||
{ "buildconf" , OPT_EXIT, {.func_arg = show_buildconf}, "show build configuration" },
|
||||
{ "formats" , OPT_EXIT, {.func_arg = show_formats }, "show available formats" },
|
||||
{ "devices" , OPT_EXIT, {.func_arg = show_devices }, "show available devices" },
|
||||
{ "codecs" , OPT_EXIT, {.func_arg = show_codecs }, "show available codecs" },
|
||||
{ "decoders" , OPT_EXIT, {.func_arg = show_decoders }, "show available decoders" },
|
||||
{ "encoders" , OPT_EXIT, {.func_arg = show_encoders }, "show available encoders" },
|
||||
{ "bsfs" , OPT_EXIT, {.func_arg = show_bsfs }, "show available bit stream filters" },
|
||||
{ "protocols" , OPT_EXIT, {.func_arg = show_protocols}, "show available protocols" },
|
||||
{ "filters" , OPT_EXIT, {.func_arg = show_filters }, "show available filters" },
|
||||
{ "pix_fmts" , OPT_EXIT, {.func_arg = show_pix_fmts }, "show available pixel formats" },
|
||||
{ "layouts" , OPT_EXIT, {.func_arg = show_layouts }, "show standard channel layouts" },
|
||||
{ "sample_fmts", OPT_EXIT, {.func_arg = show_sample_fmts }, "show available audio sample formats" },
|
||||
{ "colors" , OPT_EXIT, {.func_arg = show_colors }, "show available color names" },
|
||||
{ "loglevel" , HAS_ARG, {.func_arg = opt_loglevel}, "set logging level", "loglevel" },
|
||||
{ "v", HAS_ARG, {.func_arg = opt_loglevel}, "set logging level", "loglevel" },
|
||||
{ "report" , 0, {(void*)opt_report}, "generate a report" },
|
||||
{ "max_alloc" , HAS_ARG, {.func_arg = opt_max_alloc}, "set maximum size of a single allocated block", "bytes" },
|
||||
{ "cpuflags" , HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpuflags }, "force specific cpu flags", "flags" },
|
||||
{ "hide_banner", OPT_BOOL | OPT_EXPERT, {&hide_banner}, "do not show program banner", "hide_banner" },
|
||||
#if CONFIG_OPENCL
|
||||
{ "opencl_bench", OPT_EXIT, {.func_arg = opt_opencl_bench}, "run benchmark on all OpenCL devices and show results" },
|
||||
{ "opencl_options", HAS_ARG, {.func_arg = opt_opencl}, "set OpenCL environment options" },
|
||||
#endif
|
||||
#if CONFIG_AVDEVICE
|
||||
{ "sources" , OPT_EXIT | HAS_ARG, { .func_arg = show_sources },
|
||||
"list sources of the input device", "device" },
|
||||
{ "sinks" , OPT_EXIT | HAS_ARG, { .func_arg = show_sinks },
|
||||
"list sinks of the output device", "device" },
|
||||
#endif
|
||||
{ "L", OPT_EXIT, {(void*)opt_license}, "show license" },
|
||||
{ "h", OPT_EXIT, {(void*)opt_help}, "show help" },
|
||||
{ "?", OPT_EXIT, {(void*)opt_help}, "show help" },
|
||||
{ "help", OPT_EXIT, {(void*)opt_help}, "show help" },
|
||||
{ "-help", OPT_EXIT, {(void*)opt_help}, "show help" },
|
||||
{ "version", OPT_EXIT, {(void*)opt_version}, "show version" },
|
||||
{ "formats" , OPT_EXIT, {(void*)opt_formats }, "show available formats" },
|
||||
{ "codecs" , OPT_EXIT, {(void*)opt_codecs }, "show available codecs" },
|
||||
{ "bsfs" , OPT_EXIT, {(void*)opt_bsfs }, "show available bit stream filters" },
|
||||
{ "protocols", OPT_EXIT, {(void*)opt_protocols}, "show available protocols" },
|
||||
{ "filters", OPT_EXIT, {(void*)opt_filters }, "show available filters" },
|
||||
{ "pix_fmts" , OPT_EXIT, {(void*)opt_pix_fmts }, "show available pixel formats" },
|
||||
{ "loglevel", HAS_ARG, {(void*)opt_loglevel}, "set libav* logging level", "loglevel" },
|
||||
|
||||
@@ -1,276 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2013 Lenny Wang
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include "libavutil/opt.h"
|
||||
#include "libavutil/time.h"
|
||||
#include "libavutil/log.h"
|
||||
#include "libavutil/opencl.h"
|
||||
#include "libavutil/avstring.h"
|
||||
#include "cmdutils.h"
|
||||
|
||||
typedef struct {
|
||||
int platform_idx;
|
||||
int device_idx;
|
||||
char device_name[64];
|
||||
int64_t runtime;
|
||||
} OpenCLDeviceBenchmark;
|
||||
|
||||
const char *ocl_bench_source = AV_OPENCL_KERNEL(
|
||||
inline unsigned char clip_uint8(int a)
|
||||
{
|
||||
if (a & (~0xFF))
|
||||
return (-a)>>31;
|
||||
else
|
||||
return a;
|
||||
}
|
||||
|
||||
kernel void unsharp_bench(
|
||||
global unsigned char *src,
|
||||
global unsigned char *dst,
|
||||
global int *mask,
|
||||
int width,
|
||||
int height)
|
||||
{
|
||||
int i, j, local_idx, lc_idx, sum = 0;
|
||||
int2 thread_idx, block_idx, global_idx, lm_idx;
|
||||
thread_idx.x = get_local_id(0);
|
||||
thread_idx.y = get_local_id(1);
|
||||
block_idx.x = get_group_id(0);
|
||||
block_idx.y = get_group_id(1);
|
||||
global_idx.x = get_global_id(0);
|
||||
global_idx.y = get_global_id(1);
|
||||
local uchar data[32][32];
|
||||
local int lc[128];
|
||||
|
||||
for (i = 0; i <= 1; i++) {
|
||||
lm_idx.y = -8 + (block_idx.y + i) * 16 + thread_idx.y;
|
||||
lm_idx.y = lm_idx.y < 0 ? 0 : lm_idx.y;
|
||||
lm_idx.y = lm_idx.y >= height ? height - 1: lm_idx.y;
|
||||
for (j = 0; j <= 1; j++) {
|
||||
lm_idx.x = -8 + (block_idx.x + j) * 16 + thread_idx.x;
|
||||
lm_idx.x = lm_idx.x < 0 ? 0 : lm_idx.x;
|
||||
lm_idx.x = lm_idx.x >= width ? width - 1: lm_idx.x;
|
||||
data[i*16 + thread_idx.y][j*16 + thread_idx.x] = src[lm_idx.y*width + lm_idx.x];
|
||||
}
|
||||
}
|
||||
local_idx = thread_idx.y*16 + thread_idx.x;
|
||||
if (local_idx < 128)
|
||||
lc[local_idx] = mask[local_idx];
|
||||
barrier(CLK_LOCAL_MEM_FENCE);
|
||||
|
||||
\n#pragma unroll\n
|
||||
for (i = -4; i <= 4; i++) {
|
||||
lm_idx.y = 8 + i + thread_idx.y;
|
||||
\n#pragma unroll\n
|
||||
for (j = -4; j <= 4; j++) {
|
||||
lm_idx.x = 8 + j + thread_idx.x;
|
||||
lc_idx = (i + 4)*8 + j + 4;
|
||||
sum += (int)data[lm_idx.y][lm_idx.x] * lc[lc_idx];
|
||||
}
|
||||
}
|
||||
int temp = (int)data[thread_idx.y + 8][thread_idx.x + 8];
|
||||
int res = temp + (((temp - (int)((sum + 1<<15) >> 16))) >> 16);
|
||||
if (global_idx.x < width && global_idx.y < height)
|
||||
dst[global_idx.x + global_idx.y*width] = clip_uint8(res);
|
||||
}
|
||||
);
|
||||
|
||||
#define OCLCHECK(method, ... ) \
|
||||
do { \
|
||||
status = method(__VA_ARGS__); \
|
||||
if (status != CL_SUCCESS) { \
|
||||
av_log(NULL, AV_LOG_ERROR, # method " error '%s'\n", \
|
||||
av_opencl_errstr(status)); \
|
||||
ret = AVERROR_EXTERNAL; \
|
||||
goto end; \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#define CREATEBUF(out, flags, size) \
|
||||
do { \
|
||||
out = clCreateBuffer(ext_opencl_env->context, flags, size, NULL, &status); \
|
||||
if (status != CL_SUCCESS) { \
|
||||
av_log(NULL, AV_LOG_ERROR, "Could not create OpenCL buffer\n"); \
|
||||
ret = AVERROR_EXTERNAL; \
|
||||
goto end; \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
static void fill_rand_int(int *data, int n)
|
||||
{
|
||||
int i;
|
||||
srand(av_gettime());
|
||||
for (i = 0; i < n; i++)
|
||||
data[i] = rand();
|
||||
}
|
||||
|
||||
#define OPENCL_NB_ITER 5
|
||||
static int64_t run_opencl_bench(AVOpenCLExternalEnv *ext_opencl_env)
|
||||
{
|
||||
int i, arg = 0, width = 1920, height = 1088;
|
||||
int64_t start, ret = 0;
|
||||
cl_int status;
|
||||
size_t kernel_len;
|
||||
char *inbuf;
|
||||
int *mask;
|
||||
int buf_size = width * height * sizeof(char);
|
||||
int mask_size = sizeof(uint32_t) * 128;
|
||||
|
||||
cl_mem cl_mask, cl_inbuf, cl_outbuf;
|
||||
cl_kernel kernel = NULL;
|
||||
cl_program program = NULL;
|
||||
size_t local_work_size_2d[2] = {16, 16};
|
||||
size_t global_work_size_2d[2] = {(size_t)width, (size_t)height};
|
||||
|
||||
if (!(inbuf = av_malloc(buf_size)) || !(mask = av_malloc(mask_size))) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
fill_rand_int((int*)inbuf, buf_size/4);
|
||||
fill_rand_int(mask, mask_size/4);
|
||||
|
||||
CREATEBUF(cl_mask, CL_MEM_READ_ONLY, mask_size);
|
||||
CREATEBUF(cl_inbuf, CL_MEM_READ_ONLY, buf_size);
|
||||
CREATEBUF(cl_outbuf, CL_MEM_READ_WRITE, buf_size);
|
||||
|
||||
kernel_len = strlen(ocl_bench_source);
|
||||
program = clCreateProgramWithSource(ext_opencl_env->context, 1, &ocl_bench_source,
|
||||
&kernel_len, &status);
|
||||
if (status != CL_SUCCESS || !program) {
|
||||
av_log(NULL, AV_LOG_ERROR, "OpenCL unable to create benchmark program\n");
|
||||
ret = AVERROR_EXTERNAL;
|
||||
goto end;
|
||||
}
|
||||
status = clBuildProgram(program, 1, &(ext_opencl_env->device_id), NULL, NULL, NULL);
|
||||
if (status != CL_SUCCESS) {
|
||||
av_log(NULL, AV_LOG_ERROR, "OpenCL unable to build benchmark program\n");
|
||||
ret = AVERROR_EXTERNAL;
|
||||
goto end;
|
||||
}
|
||||
kernel = clCreateKernel(program, "unsharp_bench", &status);
|
||||
if (status != CL_SUCCESS) {
|
||||
av_log(NULL, AV_LOG_ERROR, "OpenCL unable to create benchmark kernel\n");
|
||||
ret = AVERROR_EXTERNAL;
|
||||
goto end;
|
||||
}
|
||||
|
||||
OCLCHECK(clEnqueueWriteBuffer, ext_opencl_env->command_queue, cl_inbuf, CL_TRUE, 0,
|
||||
buf_size, inbuf, 0, NULL, NULL);
|
||||
OCLCHECK(clEnqueueWriteBuffer, ext_opencl_env->command_queue, cl_mask, CL_TRUE, 0,
|
||||
mask_size, mask, 0, NULL, NULL);
|
||||
OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_mem), &cl_inbuf);
|
||||
OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_mem), &cl_outbuf);
|
||||
OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_mem), &cl_mask);
|
||||
OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_int), &width);
|
||||
OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_int), &height);
|
||||
|
||||
start = av_gettime_relative();
|
||||
for (i = 0; i < OPENCL_NB_ITER; i++)
|
||||
OCLCHECK(clEnqueueNDRangeKernel, ext_opencl_env->command_queue, kernel, 2, NULL,
|
||||
global_work_size_2d, local_work_size_2d, 0, NULL, NULL);
|
||||
clFinish(ext_opencl_env->command_queue);
|
||||
ret = (av_gettime_relative() - start)/OPENCL_NB_ITER;
|
||||
end:
|
||||
if (kernel)
|
||||
clReleaseKernel(kernel);
|
||||
if (program)
|
||||
clReleaseProgram(program);
|
||||
if (cl_inbuf)
|
||||
clReleaseMemObject(cl_inbuf);
|
||||
if (cl_outbuf)
|
||||
clReleaseMemObject(cl_outbuf);
|
||||
if (cl_mask)
|
||||
clReleaseMemObject(cl_mask);
|
||||
av_free(inbuf);
|
||||
av_free(mask);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int compare_ocl_device_desc(const void *a, const void *b)
|
||||
{
|
||||
return ((OpenCLDeviceBenchmark*)a)->runtime - ((OpenCLDeviceBenchmark*)b)->runtime;
|
||||
}
|
||||
|
||||
int opt_opencl_bench(void *optctx, const char *opt, const char *arg)
|
||||
{
|
||||
int i, j, nb_devices = 0, count = 0;
|
||||
int64_t score = 0;
|
||||
AVOpenCLDeviceList *device_list;
|
||||
AVOpenCLDeviceNode *device_node = NULL;
|
||||
OpenCLDeviceBenchmark *devices = NULL;
|
||||
cl_platform_id platform;
|
||||
|
||||
av_opencl_get_device_list(&device_list);
|
||||
for (i = 0; i < device_list->platform_num; i++)
|
||||
nb_devices += device_list->platform_node[i]->device_num;
|
||||
if (!nb_devices) {
|
||||
av_log(NULL, AV_LOG_ERROR, "No OpenCL device detected!\n");
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
if (!(devices = av_malloc_array(nb_devices, sizeof(OpenCLDeviceBenchmark)))) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Could not allocate buffer\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
for (i = 0; i < device_list->platform_num; i++) {
|
||||
for (j = 0; j < device_list->platform_node[i]->device_num; j++) {
|
||||
device_node = device_list->platform_node[i]->device_node[j];
|
||||
platform = device_list->platform_node[i]->platform_id;
|
||||
score = av_opencl_benchmark(device_node, platform, run_opencl_bench);
|
||||
if (score > 0) {
|
||||
devices[count].platform_idx = i;
|
||||
devices[count].device_idx = j;
|
||||
devices[count].runtime = score;
|
||||
av_strlcpy(devices[count].device_name, device_node->device_name,
|
||||
sizeof(devices[count].device_name));
|
||||
count++;
|
||||
}
|
||||
}
|
||||
}
|
||||
qsort(devices, count, sizeof(OpenCLDeviceBenchmark), compare_ocl_device_desc);
|
||||
fprintf(stderr, "platform_idx\tdevice_idx\tdevice_name\truntime\n");
|
||||
for (i = 0; i < count; i++)
|
||||
fprintf(stdout, "%d\t%d\t%s\t%"PRId64"\n",
|
||||
devices[i].platform_idx, devices[i].device_idx,
|
||||
devices[i].device_name, devices[i].runtime);
|
||||
|
||||
av_opencl_free_device_list(&device_list);
|
||||
av_free(devices);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int opt_opencl(void *optctx, const char *opt, const char *arg)
|
||||
{
|
||||
char *key, *value;
|
||||
const char *opts = arg;
|
||||
int ret = 0;
|
||||
while (*opts) {
|
||||
ret = av_opt_get_key_value(&opts, "=", ":", 0, &key, &value);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
ret = av_opencl_set_option(key, value);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
if (*opts)
|
||||
opts++;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
127
common.mak
127
common.mak
@@ -10,9 +10,8 @@ ifndef SUBDIR
|
||||
ifndef V
|
||||
Q = @
|
||||
ECHO = printf "$(1)\t%s\n" $(2)
|
||||
BRIEF = CC CXX HOSTCC HOSTLD AS YASM AR LD STRIP CP WINDRES
|
||||
SILENT = DEPCC DEPHOSTCC DEPAS DEPYASM RANLIB RM
|
||||
|
||||
BRIEF = CC AS YASM AR LD HOSTCC STRIP CP
|
||||
SILENT = DEPCC YASMDEP RM RANLIB
|
||||
MSG = $@
|
||||
M = @$(call ECHO,$(TAG),$@);
|
||||
$(foreach VAR,$(BRIEF), \
|
||||
@@ -21,56 +20,23 @@ $(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))
|
||||
$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
|
||||
endif
|
||||
|
||||
ALLFFLIBS = avcodec avdevice avfilter avformat avresample avutil postproc swscale swresample
|
||||
IFLAGS := -I. -I$(SRC_PATH)
|
||||
CPPFLAGS := $(IFLAGS) $(CPPFLAGS)
|
||||
CFLAGS += $(ECFLAGS)
|
||||
YASMFLAGS += $(IFLAGS) -Pconfig.asm
|
||||
|
||||
# NASM requires -I path terminated with /
|
||||
IFLAGS := -I. -I$(SRC_PATH)/
|
||||
CPPFLAGS := $(IFLAGS) $(CPPFLAGS)
|
||||
CFLAGS += $(ECFLAGS)
|
||||
CCFLAGS = $(CPPFLAGS) $(CFLAGS)
|
||||
ASFLAGS := $(CPPFLAGS) $(ASFLAGS)
|
||||
CXXFLAGS += $(CPPFLAGS) $(CFLAGS)
|
||||
YASMFLAGS += $(IFLAGS:%=%/) -Pconfig.asm
|
||||
|
||||
HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS)
|
||||
LDFLAGS := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)
|
||||
|
||||
define COMPILE
|
||||
$(call $(1)DEP,$(1))
|
||||
$($(1)) $($(1)FLAGS) $($(1)_DEPFLAGS) $($(1)_C) $($(1)_O) $<
|
||||
endef
|
||||
|
||||
COMPILE_C = $(call COMPILE,CC)
|
||||
COMPILE_CXX = $(call COMPILE,CXX)
|
||||
COMPILE_S = $(call COMPILE,AS)
|
||||
COMPILE_HOSTC = $(call COMPILE,HOSTCC)
|
||||
HOSTCFLAGS += $(IFLAGS)
|
||||
|
||||
%.o: %.c
|
||||
$(COMPILE_C)
|
||||
|
||||
%.o: %.cpp
|
||||
$(COMPILE_CXX)
|
||||
|
||||
%.o: %.m
|
||||
$(COMPILE_C)
|
||||
|
||||
%.s: %.c
|
||||
$(CC) $(CPPFLAGS) $(CFLAGS) -S -o $@ $<
|
||||
$(CCDEP)
|
||||
$(CC) $(CPPFLAGS) $(CFLAGS) $(CC_DEPFLAGS) -c $(CC_O) $<
|
||||
|
||||
%.o: %.S
|
||||
$(COMPILE_S)
|
||||
$(ASDEP)
|
||||
$(AS) $(CPPFLAGS) $(ASFLAGS) $(AS_DEPFLAGS) -c -o $@ $<
|
||||
|
||||
%_host.o: %.c
|
||||
$(COMPILE_HOSTC)
|
||||
|
||||
%.o: %.rc
|
||||
$(WINDRES) $(IFLAGS) --preprocessor "$(DEPWINDRES) -E -xc-header -DRC_INVOKED $(CC_DEPFLAGS)" -o $@ $<
|
||||
|
||||
%.i: %.c
|
||||
$(CC) $(CCFLAGS) $(CC_E) $<
|
||||
|
||||
%.h.c:
|
||||
$(Q)echo '#include "$*.h"' >$@
|
||||
%.ho: %.h
|
||||
$(CC) $(CPPFLAGS) $(CFLAGS) -Wno-unused -c -o $@ -x c $<
|
||||
|
||||
%.ver: %.v
|
||||
$(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ > $@
|
||||
@@ -89,66 +55,37 @@ COMPILE_HOSTC = $(call COMPILE,HOSTCC)
|
||||
$(OBJS):
|
||||
endif
|
||||
|
||||
include $(SRC_PATH)/arch.mak
|
||||
OBJS-$(HAVE_MMX) += $(MMX-OBJS-yes)
|
||||
|
||||
OBJS += $(OBJS-yes)
|
||||
SLIBOBJS += $(SLIBOBJS-yes)
|
||||
FFLIBS := $($(NAME)_FFLIBS) $(FFLIBS-yes) $(FFLIBS)
|
||||
FFLIBS := $(FFLIBS-yes) $(FFLIBS)
|
||||
TESTPROGS += $(TESTPROGS-yes)
|
||||
|
||||
LDLIBS = $(FFLIBS:%=%$(BUILDSUF))
|
||||
FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(EXTRALIBS)
|
||||
FFEXTRALIBS := $(addprefix -l,$(addsuffix $(BUILDSUF),$(FFLIBS))) $(EXTRALIBS)
|
||||
FFLDFLAGS := $(addprefix -Llib,$(ALLFFLIBS)) $(LDFLAGS)
|
||||
|
||||
OBJS := $(sort $(OBJS:%=$(SUBDIR)%))
|
||||
SLIBOBJS := $(sort $(SLIBOBJS:%=$(SUBDIR)%))
|
||||
TESTOBJS := $(TESTOBJS:%=$(SUBDIR)%) $(TESTPROGS:%=$(SUBDIR)%-test.o)
|
||||
TESTPROGS := $(TESTPROGS:%=$(SUBDIR)%-test$(EXESUF))
|
||||
HOSTOBJS := $(HOSTPROGS:%=$(SUBDIR)%.o)
|
||||
HOSTPROGS := $(HOSTPROGS:%=$(SUBDIR)%$(HOSTEXESUF))
|
||||
TOOLS += $(TOOLS-yes)
|
||||
TOOLOBJS := $(TOOLS:%=tools/%.o)
|
||||
TOOLS := $(TOOLS:%=tools/%$(EXESUF))
|
||||
HEADERS += $(HEADERS-yes)
|
||||
EXAMPLES := $(addprefix $(SUBDIR),$(addsuffix -example$(EXESUF),$(EXAMPLES)))
|
||||
OBJS := $(addprefix $(SUBDIR),$(sort $(OBJS)))
|
||||
TESTOBJS := $(addprefix $(SUBDIR),$(TESTOBJS) $(TESTPROGS:%=%-test.o))
|
||||
TESTPROGS := $(addprefix $(SUBDIR),$(addsuffix -test$(EXESUF),$(TESTPROGS)))
|
||||
HOSTOBJS := $(addprefix $(SUBDIR),$(addsuffix .o,$(HOSTPROGS)))
|
||||
HOSTPROGS := $(addprefix $(SUBDIR),$(addsuffix $(HOSTEXESUF),$(HOSTPROGS)))
|
||||
|
||||
PATH_LIBNAME = $(foreach NAME,$(1),lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
|
||||
DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib)))
|
||||
DEP_LIBS := $(foreach NAME,$(FFLIBS),lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
|
||||
|
||||
SRC_DIR := $(SRC_PATH)/lib$(NAME)
|
||||
ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
|
||||
SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-)
|
||||
SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)
|
||||
HOBJS = $(filter-out $(SKIPHEADERS:.h=.h.o),$(ALLHEADERS:.h=.h.o))
|
||||
checkheaders: $(HOBJS)
|
||||
.SECONDARY: $(HOBJS:.o=.c)
|
||||
|
||||
alltools: $(TOOLS)
|
||||
SKIPHEADERS += $(addprefix $(ARCH)/,$(ARCH_HEADERS))
|
||||
SKIPHEADERS := $(addprefix $(SUBDIR),$(SKIPHEADERS-) $(SKIPHEADERS))
|
||||
checkheaders: $(filter-out $(SKIPHEADERS:.h=.ho),$(ALLHEADERS:.h=.ho))
|
||||
|
||||
$(HOSTOBJS): %.o: %.c
|
||||
$(COMPILE_HOSTC)
|
||||
$(HOSTCC) $(HOSTCFLAGS) -c -o $@ $<
|
||||
|
||||
$(HOSTPROGS): %$(HOSTEXESUF): %.o
|
||||
$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $^ $(HOSTLIBS)
|
||||
$(HOSTCC) $(HOSTLDFLAGS) -o $@ $< $(HOSTLIBS)
|
||||
|
||||
$(OBJS): | $(sort $(dir $(OBJS)))
|
||||
$(HOBJS): | $(sort $(dir $(HOBJS)))
|
||||
$(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))
|
||||
$(SLIBOBJS): | $(sort $(dir $(SLIBOBJS)))
|
||||
$(TESTOBJS): | $(sort $(dir $(TESTOBJS)))
|
||||
$(TOOLOBJS): | tools
|
||||
|
||||
OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(SLIBOBJS) $(TESTOBJS))
|
||||
|
||||
CLEANSUFFIXES = *.d *.o *~ *.h.c *.map *.ver *.ho *.gcno *.gcda
|
||||
CLEANSUFFIXES = *.d *.o *~ *.ho *.map *.ver
|
||||
DISTCLEANSUFFIXES = *.pc
|
||||
LIBSUFFIXES = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a
|
||||
LIBSUFFIXES = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a *.exp
|
||||
|
||||
define RULES
|
||||
clean::
|
||||
$(RM) $(OBJS) $(OBJS:.o=.d)
|
||||
$(RM) $(HOSTPROGS)
|
||||
$(RM) $(TOOLS)
|
||||
endef
|
||||
|
||||
$(eval $(RULES))
|
||||
|
||||
-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SLIBOBJS:.o=.d))
|
||||
-include $(wildcard $(OBJS:.o=.d) $(TESTOBJS:.o=.d))
|
||||
|
||||
@@ -1,31 +0,0 @@
|
||||
/*
|
||||
* Work around the class() function in AIX math.h clashing with
|
||||
* identifiers named "class".
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef FFMPEG_COMPAT_AIX_MATH_H
|
||||
#define FFMPEG_COMPAT_AIX_MATH_H
|
||||
|
||||
#define class class_in_math_h_causes_problems
|
||||
|
||||
#include_next <math.h>
|
||||
|
||||
#undef class
|
||||
|
||||
#endif /* FFMPEG_COMPAT_AIX_MATH_H */
|
||||
@@ -1,880 +0,0 @@
|
||||
// Avisynth C Interface Version 0.20
|
||||
// Copyright 2003 Kevin Atkinson
|
||||
|
||||
// This program is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||||
// MA 02110-1301 USA, or visit
|
||||
// http://www.gnu.org/copyleft/gpl.html .
|
||||
//
|
||||
// As a special exception, I give you permission to link to the
|
||||
// Avisynth C interface with independent modules that communicate with
|
||||
// the Avisynth C interface solely through the interfaces defined in
|
||||
// avisynth_c.h, regardless of the license terms of these independent
|
||||
// modules, and to copy and distribute the resulting combined work
|
||||
// under terms of your choice, provided that every copy of the
|
||||
// combined work is accompanied by a complete copy of the source code
|
||||
// of the Avisynth C interface and Avisynth itself (with the version
|
||||
// used to produce the combined work), being distributed under the
|
||||
// terms of the GNU General Public License plus this exception. An
|
||||
// independent module is a module which is not derived from or based
|
||||
// on Avisynth C Interface, such as 3rd-party filters, import and
|
||||
// export plugins, or graphical user interfaces.
|
||||
|
||||
// NOTE: this is a partial update of the Avisynth C interface to recognize
|
||||
// new color spaces added in Avisynth 2.60. By no means is this document
|
||||
// completely Avisynth 2.60 compliant.
|
||||
|
||||
#ifndef __AVISYNTH_C__
|
||||
#define __AVISYNTH_C__
|
||||
|
||||
#ifdef __cplusplus
|
||||
# define EXTERN_C extern "C"
|
||||
#else
|
||||
# define EXTERN_C
|
||||
#endif
|
||||
|
||||
#define AVSC_USE_STDCALL 1
|
||||
|
||||
#ifndef AVSC_USE_STDCALL
|
||||
# define AVSC_CC __cdecl
|
||||
#else
|
||||
# define AVSC_CC __stdcall
|
||||
#endif
|
||||
|
||||
#define AVSC_INLINE static __inline
|
||||
|
||||
#ifdef AVISYNTH_C_EXPORTS
|
||||
# define AVSC_EXPORT EXTERN_C
|
||||
# define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
|
||||
#else
|
||||
# define AVSC_EXPORT EXTERN_C __declspec(dllexport)
|
||||
# ifndef AVSC_NO_DECLSPEC
|
||||
# define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
|
||||
# else
|
||||
# define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
|
||||
# endif
|
||||
#endif
|
||||
|
||||
typedef unsigned char BYTE;
|
||||
#ifdef __GNUC__
|
||||
typedef long long int INT64;
|
||||
#else
|
||||
typedef __int64 INT64;
|
||||
#endif
|
||||
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Constants
|
||||
//
|
||||
|
||||
#ifndef __AVISYNTH_H__
|
||||
enum { AVISYNTH_INTERFACE_VERSION = 4 };
|
||||
#endif
|
||||
|
||||
enum {AVS_SAMPLE_INT8 = 1<<0,
|
||||
AVS_SAMPLE_INT16 = 1<<1,
|
||||
AVS_SAMPLE_INT24 = 1<<2,
|
||||
AVS_SAMPLE_INT32 = 1<<3,
|
||||
AVS_SAMPLE_FLOAT = 1<<4};
|
||||
|
||||
enum {AVS_PLANAR_Y=1<<0,
|
||||
AVS_PLANAR_U=1<<1,
|
||||
AVS_PLANAR_V=1<<2,
|
||||
AVS_PLANAR_ALIGNED=1<<3,
|
||||
AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
|
||||
AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
|
||||
AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED,
|
||||
AVS_PLANAR_A=1<<4,
|
||||
AVS_PLANAR_R=1<<5,
|
||||
AVS_PLANAR_G=1<<6,
|
||||
AVS_PLANAR_B=1<<7,
|
||||
AVS_PLANAR_A_ALIGNED=AVS_PLANAR_A|AVS_PLANAR_ALIGNED,
|
||||
AVS_PLANAR_R_ALIGNED=AVS_PLANAR_R|AVS_PLANAR_ALIGNED,
|
||||
AVS_PLANAR_G_ALIGNED=AVS_PLANAR_G|AVS_PLANAR_ALIGNED,
|
||||
AVS_PLANAR_B_ALIGNED=AVS_PLANAR_B|AVS_PLANAR_ALIGNED};
|
||||
|
||||
// Colorspace properties.
|
||||
enum {AVS_CS_BGR = 1<<28,
|
||||
AVS_CS_YUV = 1<<29,
|
||||
AVS_CS_INTERLEAVED = 1<<30,
|
||||
AVS_CS_PLANAR = 1<<31,
|
||||
|
||||
AVS_CS_SHIFT_SUB_WIDTH = 0,
|
||||
AVS_CS_SHIFT_SUB_HEIGHT = 1 << 3,
|
||||
AVS_CS_SHIFT_SAMPLE_BITS = 1 << 4,
|
||||
|
||||
AVS_CS_SUB_WIDTH_MASK = 7 << AVS_CS_SHIFT_SUB_WIDTH,
|
||||
AVS_CS_SUB_WIDTH_1 = 3 << AVS_CS_SHIFT_SUB_WIDTH, // YV24
|
||||
AVS_CS_SUB_WIDTH_2 = 0 << AVS_CS_SHIFT_SUB_WIDTH, // YV12, I420, YV16
|
||||
AVS_CS_SUB_WIDTH_4 = 1 << AVS_CS_SHIFT_SUB_WIDTH, // YUV9, YV411
|
||||
|
||||
AVS_CS_VPLANEFIRST = 1 << 3, // YV12, YV16, YV24, YV411, YUV9
|
||||
AVS_CS_UPLANEFIRST = 1 << 4, // I420
|
||||
|
||||
AVS_CS_SUB_HEIGHT_MASK = 7 << AVS_CS_SHIFT_SUB_HEIGHT,
|
||||
AVS_CS_SUB_HEIGHT_1 = 3 << AVS_CS_SHIFT_SUB_HEIGHT, // YV16, YV24, YV411
|
||||
AVS_CS_SUB_HEIGHT_2 = 0 << AVS_CS_SHIFT_SUB_HEIGHT, // YV12, I420
|
||||
AVS_CS_SUB_HEIGHT_4 = 1 << AVS_CS_SHIFT_SUB_HEIGHT, // YUV9
|
||||
|
||||
AVS_CS_SAMPLE_BITS_MASK = 7 << AVS_CS_SHIFT_SAMPLE_BITS,
|
||||
AVS_CS_SAMPLE_BITS_8 = 0 << AVS_CS_SHIFT_SAMPLE_BITS,
|
||||
AVS_CS_SAMPLE_BITS_16 = 1 << AVS_CS_SHIFT_SAMPLE_BITS,
|
||||
AVS_CS_SAMPLE_BITS_32 = 2 << AVS_CS_SHIFT_SAMPLE_BITS,
|
||||
|
||||
AVS_CS_PLANAR_MASK = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_BGR | AVS_CS_SAMPLE_BITS_MASK | AVS_CS_SUB_HEIGHT_MASK | AVS_CS_SUB_WIDTH_MASK,
|
||||
AVS_CS_PLANAR_FILTER = ~( AVS_CS_VPLANEFIRST | AVS_CS_UPLANEFIRST )};
|
||||
|
||||
// Specific colorformats
|
||||
enum {
|
||||
AVS_CS_UNKNOWN = 0,
|
||||
AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
|
||||
AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
|
||||
AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
|
||||
// AVS_CS_YV12 = 1<<3 Reserved
|
||||
// AVS_CS_I420 = 1<<4 Reserved
|
||||
AVS_CS_RAW32 = 1<<5 | AVS_CS_INTERLEAVED,
|
||||
|
||||
AVS_CS_YV24 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_1, // YVU 4:4:4 planar
|
||||
AVS_CS_YV16 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_2, // YVU 4:2:2 planar
|
||||
AVS_CS_YV12 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2, // YVU 4:2:0 planar
|
||||
AVS_CS_I420 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_UPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2, // YUV 4:2:0 planar
|
||||
AVS_CS_IYUV = AVS_CS_I420,
|
||||
AVS_CS_YV411 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_4, // YVU 4:1:1 planar
|
||||
AVS_CS_YUV9 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_4 | AVS_CS_SUB_WIDTH_4, // YVU 4:1:0 planar
|
||||
AVS_CS_Y8 = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 // Y 4:0:0 planar
|
||||
};
|
||||
|
||||
enum {
|
||||
AVS_IT_BFF = 1<<0,
|
||||
AVS_IT_TFF = 1<<1,
|
||||
AVS_IT_FIELDBASED = 1<<2};
|
||||
|
||||
enum {
|
||||
AVS_FILTER_TYPE=1,
|
||||
AVS_FILTER_INPUT_COLORSPACE=2,
|
||||
AVS_FILTER_OUTPUT_TYPE=9,
|
||||
AVS_FILTER_NAME=4,
|
||||
AVS_FILTER_AUTHOR=5,
|
||||
AVS_FILTER_VERSION=6,
|
||||
AVS_FILTER_ARGS=7,
|
||||
AVS_FILTER_ARGS_INFO=8,
|
||||
AVS_FILTER_ARGS_DESCRIPTION=10,
|
||||
AVS_FILTER_DESCRIPTION=11};
|
||||
|
||||
enum { //SUBTYPES
|
||||
AVS_FILTER_TYPE_AUDIO=1,
|
||||
AVS_FILTER_TYPE_VIDEO=2,
|
||||
AVS_FILTER_OUTPUT_TYPE_SAME=3,
|
||||
AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4};
|
||||
|
||||
enum {
|
||||
AVS_CACHE_NOTHING=0,
|
||||
AVS_CACHE_RANGE=1,
|
||||
AVS_CACHE_ALL=2,
|
||||
AVS_CACHE_AUDIO=3,
|
||||
AVS_CACHE_AUDIO_NONE=4,
|
||||
AVS_CACHE_AUDIO_AUTO=5
|
||||
};
|
||||
|
||||
#define AVS_FRAME_ALIGN 16
|
||||
|
||||
typedef struct AVS_Clip AVS_Clip;
|
||||
typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_VideoInfo
|
||||
//
|
||||
|
||||
// AVS_VideoInfo is layed out identicly to VideoInfo
|
||||
typedef struct AVS_VideoInfo {
|
||||
int width, height; // width=0 means no video
|
||||
unsigned fps_numerator, fps_denominator;
|
||||
int num_frames;
|
||||
|
||||
int pixel_type;
|
||||
|
||||
int audio_samples_per_second; // 0 means no audio
|
||||
int sample_type;
|
||||
INT64 num_audio_samples;
|
||||
int nchannels;
|
||||
|
||||
// Imagetype properties
|
||||
|
||||
int image_type;
|
||||
} AVS_VideoInfo;
|
||||
|
||||
// useful functions of the above
|
||||
AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p)
|
||||
{ return (p->width!=0); }
|
||||
|
||||
AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p)
|
||||
{ return (p->audio_samples_per_second!=0); }
|
||||
|
||||
AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p)
|
||||
{ return !!(p->pixel_type&AVS_CS_BGR); }
|
||||
|
||||
AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
|
||||
|
||||
AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
|
||||
|
||||
AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p)
|
||||
{ return !!(p->pixel_type&AVS_CS_YUV ); }
|
||||
|
||||
AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
|
||||
|
||||
AVSC_INLINE int avs_is_yv24(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV24 & AVS_CS_PLANAR_FILTER); }
|
||||
|
||||
AVSC_INLINE int avs_is_yv16(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV16 & AVS_CS_PLANAR_FILTER); }
|
||||
|
||||
AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV12 & AVS_CS_PLANAR_FILTER); }
|
||||
|
||||
AVSC_INLINE int avs_is_yv411(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV411 & AVS_CS_PLANAR_FILTER); }
|
||||
|
||||
AVSC_INLINE int avs_is_y8(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_Y8 & AVS_CS_PLANAR_FILTER); }
|
||||
|
||||
AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property)
|
||||
{ return ((p->pixel_type & property)==property ); }
|
||||
|
||||
AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p)
|
||||
{ return !!(p->pixel_type & AVS_CS_PLANAR); }
|
||||
|
||||
AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space)
|
||||
{ return avs_is_planar(p) ? ((p->pixel_type & AVS_CS_PLANAR_MASK) == (c_space & AVS_CS_PLANAR_FILTER)) : ((p->pixel_type & c_space) == c_space); }
|
||||
|
||||
AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p)
|
||||
{ return !!(p->image_type & AVS_IT_FIELDBASED); }
|
||||
|
||||
AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p)
|
||||
{ return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); }
|
||||
|
||||
AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p)
|
||||
{ return !!(p->image_type & AVS_IT_BFF); }
|
||||
|
||||
AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p)
|
||||
{ return !!(p->image_type & AVS_IT_TFF); }
|
||||
|
||||
AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p)
|
||||
{
|
||||
switch (p->pixel_type) {
|
||||
case AVS_CS_BGR24: return 24;
|
||||
case AVS_CS_BGR32: return 32;
|
||||
case AVS_CS_YUY2: return 16;
|
||||
case AVS_CS_YV12:
|
||||
case AVS_CS_I420: return 12;
|
||||
default: return 0;
|
||||
}
|
||||
}
|
||||
AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels)
|
||||
{ return pixels * (avs_bits_per_pixel(p)>>3); } // Will work on planar images, but will return only luma planes
|
||||
|
||||
AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p)
|
||||
{ return avs_bytes_from_pixels(p,p->width); } // Also only returns first plane on planar images
|
||||
|
||||
AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi)
|
||||
{ if (avs_is_planar(vi)) {int p = vi->height * ((avs_row_size(vi)+3) & ~3); p+=p>>1; return p; } return vi->height * ((avs_row_size(vi)+3) & ~3); }
|
||||
|
||||
AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p)
|
||||
{ return p->audio_samples_per_second; }
|
||||
|
||||
|
||||
AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p)
|
||||
{
|
||||
switch (p->sample_type) {
|
||||
case AVS_SAMPLE_INT8: return sizeof(signed char);
|
||||
case AVS_SAMPLE_INT16: return sizeof(signed short);
|
||||
case AVS_SAMPLE_INT24: return 3;
|
||||
case AVS_SAMPLE_INT32: return sizeof(signed int);
|
||||
case AVS_SAMPLE_FLOAT: return sizeof(float);
|
||||
default: return 0;
|
||||
}
|
||||
}
|
||||
AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p)
|
||||
{ return p->nchannels*avs_bytes_per_channel_sample(p);}
|
||||
|
||||
AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames)
|
||||
{ return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); }
|
||||
|
||||
AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
|
||||
{ return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); }
|
||||
|
||||
AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes)
|
||||
{ return bytes / avs_bytes_per_audio_sample(p); }
|
||||
|
||||
AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
|
||||
{ return samples * avs_bytes_per_audio_sample(p); }
|
||||
|
||||
AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p)
|
||||
{ return p->nchannels; }
|
||||
|
||||
AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p)
|
||||
{ return p->sample_type;}
|
||||
|
||||
// useful mutator
|
||||
AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property)
|
||||
{ p->image_type|=property; }
|
||||
|
||||
AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property)
|
||||
{ p->image_type&=~property; }
|
||||
|
||||
AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased)
|
||||
{ if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; }
|
||||
|
||||
AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator)
|
||||
{
|
||||
unsigned x=numerator, y=denominator;
|
||||
while (y) { // find gcd
|
||||
unsigned t = x%y; x = y; y = t;
|
||||
}
|
||||
p->fps_numerator = numerator/x;
|
||||
p->fps_denominator = denominator/x;
|
||||
}
|
||||
|
||||
AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y)
|
||||
{
|
||||
return (x->pixel_type == y->pixel_type)
|
||||
|| (avs_is_yv12(x) && avs_is_yv12(y));
|
||||
}
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_VideoFrame
|
||||
//
|
||||
|
||||
// VideoFrameBuffer holds information about a memory block which is used
|
||||
// for video data. For efficiency, instances of this class are not deleted
|
||||
// when the refcount reaches zero; instead they're stored in a linked list
|
||||
// to be reused. The instances are deleted when the corresponding AVS
|
||||
// file is closed.
|
||||
|
||||
// AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
|
||||
// DO NOT USE THIS STRUCTURE DIRECTLY
|
||||
typedef struct AVS_VideoFrameBuffer {
|
||||
BYTE * data;
|
||||
int data_size;
|
||||
// sequence_number is incremented every time the buffer is changed, so
|
||||
// that stale views can tell they're no longer valid.
|
||||
volatile long sequence_number;
|
||||
|
||||
volatile long refcount;
|
||||
} AVS_VideoFrameBuffer;
|
||||
|
||||
// VideoFrame holds a "window" into a VideoFrameBuffer.
|
||||
|
||||
// AVS_VideoFrame is layed out identicly to IVideoFrame
|
||||
// DO NOT USE THIS STRUCTURE DIRECTLY
|
||||
typedef struct AVS_VideoFrame {
|
||||
volatile long refcount;
|
||||
AVS_VideoFrameBuffer * vfb;
|
||||
int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture.
|
||||
int row_sizeUV, heightUV;
|
||||
} AVS_VideoFrame;
|
||||
|
||||
// Access functions for AVS_VideoFrame
|
||||
AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) {
|
||||
return p->pitch;}
|
||||
|
||||
AVSC_INLINE int avs_get_pitch_p(const AVS_VideoFrame * p, int plane) {
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: case AVS_PLANAR_V: return p->pitchUV;}
|
||||
return p->pitch;}
|
||||
|
||||
AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) {
|
||||
return p->row_size; }
|
||||
|
||||
AVSC_INLINE int avs_get_row_size_p(const AVS_VideoFrame * p, int plane) {
|
||||
int r;
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
||||
if (p->pitchUV) return p->row_sizeUV;
|
||||
else return 0;
|
||||
case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
|
||||
if (p->pitchUV) {
|
||||
r = (p->row_sizeUV+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
|
||||
if (r < p->pitchUV)
|
||||
return r;
|
||||
return p->row_sizeUV;
|
||||
} else return 0;
|
||||
case AVS_PLANAR_Y_ALIGNED:
|
||||
r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
|
||||
if (r <= p->pitch)
|
||||
return r;
|
||||
return p->row_size;
|
||||
}
|
||||
return p->row_size;
|
||||
}
|
||||
|
||||
AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) {
|
||||
return p->height;}
|
||||
|
||||
AVSC_INLINE int avs_get_height_p(const AVS_VideoFrame * p, int plane) {
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
||||
if (p->pitchUV) return p->heightUV;
|
||||
return 0;
|
||||
}
|
||||
return p->height;}
|
||||
|
||||
AVSC_INLINE const BYTE* avs_get_read_ptr(const AVS_VideoFrame * p) {
|
||||
return p->vfb->data + p->offset;}
|
||||
|
||||
AVSC_INLINE const BYTE* avs_get_read_ptr_p(const AVS_VideoFrame * p, int plane)
|
||||
{
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
||||
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
||||
default: return p->vfb->data + p->offset;}
|
||||
}
|
||||
|
||||
AVSC_INLINE int avs_is_writable(const AVS_VideoFrame * p) {
|
||||
return (p->refcount == 1 && p->vfb->refcount == 1);}
|
||||
|
||||
AVSC_INLINE BYTE* avs_get_write_ptr(const AVS_VideoFrame * p)
|
||||
{
|
||||
if (avs_is_writable(p)) {
|
||||
++p->vfb->sequence_number;
|
||||
return p->vfb->data + p->offset;
|
||||
} else
|
||||
return 0;
|
||||
}
|
||||
|
||||
AVSC_INLINE BYTE* avs_get_write_ptr_p(const AVS_VideoFrame * p, int plane)
|
||||
{
|
||||
if (plane==AVS_PLANAR_Y && avs_is_writable(p)) {
|
||||
++p->vfb->sequence_number;
|
||||
return p->vfb->data + p->offset;
|
||||
} else if (plane==AVS_PLANAR_Y) {
|
||||
return 0;
|
||||
} else {
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
||||
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
||||
default: return p->vfb->data + p->offset;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *);
|
||||
// makes a shallow copy of a video frame
|
||||
AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *);
|
||||
|
||||
#ifndef AVSC_NO_DECLSPEC
|
||||
AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f)
|
||||
{avs_release_video_frame(f);}
|
||||
AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f)
|
||||
{return avs_copy_video_frame(f);}
|
||||
#endif
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_Value
|
||||
//
|
||||
|
||||
// Treat AVS_Value as a fat pointer. That is use avs_copy_value
|
||||
// and avs_release_value appropiaty as you would if AVS_Value was
|
||||
// a pointer.
|
||||
|
||||
// To maintain source code compatibility with future versions of the
|
||||
// avisynth_c API don't use the AVS_Value directly. Use the helper
|
||||
// functions below.
|
||||
|
||||
// AVS_Value is layed out identicly to AVSValue
|
||||
typedef struct AVS_Value AVS_Value;
|
||||
struct AVS_Value {
|
||||
short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
|
||||
// for some function e'rror
|
||||
short array_size;
|
||||
union {
|
||||
void * clip; // do not use directly, use avs_take_clip
|
||||
char boolean;
|
||||
int integer;
|
||||
float floating_pt;
|
||||
const char * string;
|
||||
const AVS_Value * array;
|
||||
} d;
|
||||
};
|
||||
|
||||
// AVS_Value should be initilized with avs_void.
|
||||
// Should also set to avs_void after the value is released
|
||||
// with avs_copy_value. Consider it the equalvent of setting
|
||||
// a pointer to NULL
|
||||
static const AVS_Value avs_void = {'v'};
|
||||
|
||||
AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src);
|
||||
AVSC_API(void, avs_release_value)(AVS_Value);
|
||||
|
||||
AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; }
|
||||
AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
|
||||
AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; }
|
||||
AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; }
|
||||
AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
|
||||
AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; }
|
||||
AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; }
|
||||
AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; }
|
||||
|
||||
AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
|
||||
AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *);
|
||||
|
||||
AVSC_INLINE int avs_as_bool(AVS_Value v)
|
||||
{ return v.d.boolean; }
|
||||
AVSC_INLINE int avs_as_int(AVS_Value v)
|
||||
{ return v.d.integer; }
|
||||
AVSC_INLINE const char * avs_as_string(AVS_Value v)
|
||||
{ return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
|
||||
AVSC_INLINE double avs_as_float(AVS_Value v)
|
||||
{ return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
|
||||
AVSC_INLINE const char * avs_as_error(AVS_Value v)
|
||||
{ return avs_is_error(v) ? v.d.string : 0; }
|
||||
AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v)
|
||||
{ return v.d.array; }
|
||||
AVSC_INLINE int avs_array_size(AVS_Value v)
|
||||
{ return avs_is_array(v) ? v.array_size : 1; }
|
||||
AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
|
||||
{ return avs_is_array(v) ? v.d.array[index] : v; }
|
||||
|
||||
// only use these functions on an AVS_Value that does not already have
|
||||
// an active value. Remember, treat AVS_Value as a fat pointer.
|
||||
AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
|
||||
{ AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
|
||||
AVSC_INLINE AVS_Value avs_new_value_int(int v0)
|
||||
{ AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; }
|
||||
AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
|
||||
{ AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
|
||||
AVSC_INLINE AVS_Value avs_new_value_float(float v0)
|
||||
{ AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;}
|
||||
AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
|
||||
{ AVS_Value v; v.type = 'e'; v.d.string = v0; return v; }
|
||||
#ifndef AVSC_NO_DECLSPEC
|
||||
AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
|
||||
{ AVS_Value v; avs_set_to_clip(&v, v0); return v; }
|
||||
#endif
|
||||
AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
|
||||
{ AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_Clip
|
||||
//
|
||||
|
||||
AVSC_API(void, avs_release_clip)(AVS_Clip *);
|
||||
AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *);
|
||||
|
||||
AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error
|
||||
|
||||
AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *);
|
||||
|
||||
AVSC_API(int, avs_get_version)(AVS_Clip *);
|
||||
|
||||
AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n);
|
||||
// The returned video frame must be released with avs_release_video_frame
|
||||
|
||||
AVSC_API(int, avs_get_parity)(AVS_Clip *, int n);
|
||||
// return field parity if field_based, else parity of first field in frame
|
||||
|
||||
AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf,
|
||||
INT64 start, INT64 count);
|
||||
// start and count are in samples
|
||||
|
||||
AVSC_API(int, avs_set_cache_hints)(AVS_Clip *,
|
||||
int cachehints, int frame_range);
|
||||
|
||||
// This is the callback type used by avs_add_function
|
||||
typedef AVS_Value (AVSC_CC * AVS_ApplyFunc)
|
||||
(AVS_ScriptEnvironment *, AVS_Value args, void * user_data);
|
||||
|
||||
typedef struct AVS_FilterInfo AVS_FilterInfo;
|
||||
struct AVS_FilterInfo
|
||||
{
|
||||
// these members should not be modified outside of the AVS_ApplyFunc callback
|
||||
AVS_Clip * child;
|
||||
AVS_VideoInfo vi;
|
||||
AVS_ScriptEnvironment * env;
|
||||
AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n);
|
||||
int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n);
|
||||
int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf,
|
||||
INT64 start, INT64 count);
|
||||
int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints,
|
||||
int frame_range);
|
||||
void (AVSC_CC * free_filter)(AVS_FilterInfo *);
|
||||
|
||||
// Should be set when ever there is an error to report.
|
||||
// It is cleared before any of the above methods are called
|
||||
const char * error;
|
||||
// this is to store whatever and may be modified at will
|
||||
void * user_data;
|
||||
};
|
||||
|
||||
// Create a new filter
|
||||
// fi is set to point to the AVS_FilterInfo so that you can
|
||||
// modify it once it is initilized.
|
||||
// store_child should generally be set to true. If it is not
|
||||
// set than ALL methods (the function pointers) must be defined
|
||||
// If it is set than you do not need to worry about freeing the child
|
||||
// clip.
|
||||
AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e,
|
||||
AVS_FilterInfo * * fi,
|
||||
AVS_Value child, int store_child);
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_ScriptEnvironment
|
||||
//
|
||||
|
||||
// For GetCPUFlags. These are backwards-compatible with those in VirtualDub.
|
||||
enum {
|
||||
/* slowest CPU to support extension */
|
||||
AVS_CPU_FORCE = 0x01, // N/A
|
||||
AVS_CPU_FPU = 0x02, // 386/486DX
|
||||
AVS_CPU_MMX = 0x04, // P55C, K6, PII
|
||||
AVS_CPU_INTEGER_SSE = 0x08, // PIII, Athlon
|
||||
AVS_CPU_SSE = 0x10, // PIII, Athlon XP/MP
|
||||
AVS_CPU_SSE2 = 0x20, // PIV, Hammer
|
||||
AVS_CPU_3DNOW = 0x40, // K6-2
|
||||
AVS_CPU_3DNOW_EXT = 0x80, // Athlon
|
||||
AVS_CPU_X86_64 = 0xA0, // Hammer (note: equiv. to 3DNow + SSE2,
|
||||
// which only Hammer will have anyway)
|
||||
AVS_CPUF_SSE3 = 0x100, // PIV+, K8 Venice
|
||||
AVS_CPUF_SSSE3 = 0x200, // Core 2
|
||||
AVS_CPUF_SSE4 = 0x400, // Penryn, Wolfdale, Yorkfield
|
||||
AVS_CPUF_SSE4_1 = 0x400,
|
||||
AVS_CPUF_SSE4_2 = 0x800, // Nehalem
|
||||
};
|
||||
|
||||
AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error
|
||||
|
||||
AVSC_API(long, avs_get_cpu_flags)(AVS_ScriptEnvironment *);
|
||||
AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version);
|
||||
|
||||
AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length);
|
||||
AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...);
|
||||
|
||||
AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, void* val);
|
||||
// note: val is really a va_list; I hope everyone typedefs va_list to a pointer
|
||||
|
||||
AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *,
|
||||
const char * name, const char * params,
|
||||
AVS_ApplyFunc apply, void * user_data);
|
||||
|
||||
AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name);
|
||||
|
||||
AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name,
|
||||
AVS_Value args, const char** arg_names);
|
||||
// The returned value must be be released with avs_release_value
|
||||
|
||||
AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name);
|
||||
// The returned value must be be released with avs_release_value
|
||||
|
||||
AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val);
|
||||
|
||||
AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val);
|
||||
|
||||
//void avs_push_context(AVS_ScriptEnvironment *, int level=0);
|
||||
//void avs_pop_context(AVS_ScriptEnvironment *);
|
||||
|
||||
AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *,
|
||||
const AVS_VideoInfo * vi, int align);
|
||||
// align should be at least 16
|
||||
|
||||
#ifndef AVSC_NO_DECLSPEC
|
||||
AVSC_INLINE
|
||||
AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env,
|
||||
const AVS_VideoInfo * vi)
|
||||
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
||||
|
||||
AVSC_INLINE
|
||||
AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env,
|
||||
const AVS_VideoInfo * vi)
|
||||
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
||||
#endif
|
||||
|
||||
|
||||
AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf);
|
||||
|
||||
AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, BYTE* dstp, int dst_pitch, const BYTE* srcp, int src_pitch, int row_size, int height);
|
||||
|
||||
typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env);
|
||||
AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data);
|
||||
|
||||
AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height);
|
||||
// The returned video frame must be be released
|
||||
|
||||
AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem);
|
||||
|
||||
AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir);
|
||||
|
||||
// avisynth.dll exports this; it's a way to use it as a library, without
|
||||
// writing an AVS script or without going through AVIFile.
|
||||
AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version);
|
||||
|
||||
// this symbol is the entry point for the plugin and must
|
||||
// be defined
|
||||
AVSC_EXPORT
|
||||
const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env);
|
||||
|
||||
|
||||
AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *);
|
||||
|
||||
|
||||
AVSC_API(AVS_VideoFrame *, avs_subframe_planar)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int new_pitchUV);
|
||||
// The returned video frame must be be released
|
||||
|
||||
#ifdef AVSC_NO_DECLSPEC
|
||||
// use LoadLibrary and related functions to dynamically load Avisynth instead of declspec(dllimport)
|
||||
/*
|
||||
The following functions needs to have been declared, probably from windows.h
|
||||
|
||||
void* malloc(size_t)
|
||||
void free(void*);
|
||||
|
||||
HMODULE LoadLibrary(const char*);
|
||||
void* GetProcAddress(HMODULE, const char*);
|
||||
FreeLibrary(HMODULE);
|
||||
*/
|
||||
|
||||
|
||||
typedef struct AVS_Library AVS_Library;
|
||||
|
||||
#define AVSC_DECLARE_FUNC(name) name##_func name
|
||||
|
||||
struct AVS_Library {
|
||||
HMODULE handle;
|
||||
|
||||
AVSC_DECLARE_FUNC(avs_add_function);
|
||||
AVSC_DECLARE_FUNC(avs_at_exit);
|
||||
AVSC_DECLARE_FUNC(avs_bit_blt);
|
||||
AVSC_DECLARE_FUNC(avs_check_version);
|
||||
AVSC_DECLARE_FUNC(avs_clip_get_error);
|
||||
AVSC_DECLARE_FUNC(avs_copy_clip);
|
||||
AVSC_DECLARE_FUNC(avs_copy_value);
|
||||
AVSC_DECLARE_FUNC(avs_copy_video_frame);
|
||||
AVSC_DECLARE_FUNC(avs_create_script_environment);
|
||||
AVSC_DECLARE_FUNC(avs_delete_script_environment);
|
||||
AVSC_DECLARE_FUNC(avs_function_exists);
|
||||
AVSC_DECLARE_FUNC(avs_get_audio);
|
||||
AVSC_DECLARE_FUNC(avs_get_cpu_flags);
|
||||
AVSC_DECLARE_FUNC(avs_get_error);
|
||||
AVSC_DECLARE_FUNC(avs_get_frame);
|
||||
AVSC_DECLARE_FUNC(avs_get_parity);
|
||||
AVSC_DECLARE_FUNC(avs_get_var);
|
||||
AVSC_DECLARE_FUNC(avs_get_version);
|
||||
AVSC_DECLARE_FUNC(avs_get_video_info);
|
||||
AVSC_DECLARE_FUNC(avs_invoke);
|
||||
AVSC_DECLARE_FUNC(avs_make_writable);
|
||||
AVSC_DECLARE_FUNC(avs_new_c_filter);
|
||||
AVSC_DECLARE_FUNC(avs_new_video_frame_a);
|
||||
AVSC_DECLARE_FUNC(avs_release_clip);
|
||||
AVSC_DECLARE_FUNC(avs_release_value);
|
||||
AVSC_DECLARE_FUNC(avs_release_video_frame);
|
||||
AVSC_DECLARE_FUNC(avs_save_string);
|
||||
AVSC_DECLARE_FUNC(avs_set_cache_hints);
|
||||
AVSC_DECLARE_FUNC(avs_set_global_var);
|
||||
AVSC_DECLARE_FUNC(avs_set_memory_max);
|
||||
AVSC_DECLARE_FUNC(avs_set_to_clip);
|
||||
AVSC_DECLARE_FUNC(avs_set_var);
|
||||
AVSC_DECLARE_FUNC(avs_set_working_dir);
|
||||
AVSC_DECLARE_FUNC(avs_sprintf);
|
||||
AVSC_DECLARE_FUNC(avs_subframe);
|
||||
AVSC_DECLARE_FUNC(avs_subframe_planar);
|
||||
AVSC_DECLARE_FUNC(avs_take_clip);
|
||||
AVSC_DECLARE_FUNC(avs_vsprintf);
|
||||
};
|
||||
|
||||
#undef AVSC_DECLARE_FUNC
|
||||
|
||||
|
||||
AVSC_INLINE AVS_Library * avs_load_library() {
|
||||
AVS_Library *library = (AVS_Library *)malloc(sizeof(AVS_Library));
|
||||
if (!library)
|
||||
return NULL;
|
||||
library->handle = LoadLibrary("avisynth");
|
||||
if (library->handle == NULL)
|
||||
goto fail;
|
||||
|
||||
#define __AVSC_STRINGIFY(x) #x
|
||||
#define AVSC_STRINGIFY(x) __AVSC_STRINGIFY(x)
|
||||
#define AVSC_LOAD_FUNC(name) {\
|
||||
library->name = (name##_func) GetProcAddress(library->handle, AVSC_STRINGIFY(name));\
|
||||
if (library->name == NULL)\
|
||||
goto fail;\
|
||||
}
|
||||
|
||||
AVSC_LOAD_FUNC(avs_add_function);
|
||||
AVSC_LOAD_FUNC(avs_at_exit);
|
||||
AVSC_LOAD_FUNC(avs_bit_blt);
|
||||
AVSC_LOAD_FUNC(avs_check_version);
|
||||
AVSC_LOAD_FUNC(avs_clip_get_error);
|
||||
AVSC_LOAD_FUNC(avs_copy_clip);
|
||||
AVSC_LOAD_FUNC(avs_copy_value);
|
||||
AVSC_LOAD_FUNC(avs_copy_video_frame);
|
||||
AVSC_LOAD_FUNC(avs_create_script_environment);
|
||||
AVSC_LOAD_FUNC(avs_delete_script_environment);
|
||||
AVSC_LOAD_FUNC(avs_function_exists);
|
||||
AVSC_LOAD_FUNC(avs_get_audio);
|
||||
AVSC_LOAD_FUNC(avs_get_cpu_flags);
|
||||
AVSC_LOAD_FUNC(avs_get_error);
|
||||
AVSC_LOAD_FUNC(avs_get_frame);
|
||||
AVSC_LOAD_FUNC(avs_get_parity);
|
||||
AVSC_LOAD_FUNC(avs_get_var);
|
||||
AVSC_LOAD_FUNC(avs_get_version);
|
||||
AVSC_LOAD_FUNC(avs_get_video_info);
|
||||
AVSC_LOAD_FUNC(avs_invoke);
|
||||
AVSC_LOAD_FUNC(avs_make_writable);
|
||||
AVSC_LOAD_FUNC(avs_new_c_filter);
|
||||
AVSC_LOAD_FUNC(avs_new_video_frame_a);
|
||||
AVSC_LOAD_FUNC(avs_release_clip);
|
||||
AVSC_LOAD_FUNC(avs_release_value);
|
||||
AVSC_LOAD_FUNC(avs_release_video_frame);
|
||||
AVSC_LOAD_FUNC(avs_save_string);
|
||||
AVSC_LOAD_FUNC(avs_set_cache_hints);
|
||||
AVSC_LOAD_FUNC(avs_set_global_var);
|
||||
AVSC_LOAD_FUNC(avs_set_memory_max);
|
||||
AVSC_LOAD_FUNC(avs_set_to_clip);
|
||||
AVSC_LOAD_FUNC(avs_set_var);
|
||||
AVSC_LOAD_FUNC(avs_set_working_dir);
|
||||
AVSC_LOAD_FUNC(avs_sprintf);
|
||||
AVSC_LOAD_FUNC(avs_subframe);
|
||||
AVSC_LOAD_FUNC(avs_subframe_planar);
|
||||
AVSC_LOAD_FUNC(avs_take_clip);
|
||||
AVSC_LOAD_FUNC(avs_vsprintf);
|
||||
|
||||
#undef __AVSC_STRINGIFY
|
||||
#undef AVSC_STRINGIFY
|
||||
#undef AVSC_LOAD_FUNC
|
||||
|
||||
return library;
|
||||
|
||||
fail:
|
||||
free(library);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
AVSC_INLINE void avs_free_library(AVS_Library *library) {
|
||||
if (!library)
|
||||
return;
|
||||
FreeLibrary(library->handle);
|
||||
free(library);
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
@@ -1,68 +0,0 @@
|
||||
// Copyright (c) 2011 FFmpegSource Project
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
// of this software and associated documentation files (the "Software"), to deal
|
||||
// in the Software without restriction, including without limitation the rights
|
||||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
// copies of the Software, and to permit persons to whom the Software is
|
||||
// furnished to do so, subject to the following conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be included in
|
||||
// all copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
// THE SOFTWARE.
|
||||
|
||||
/* these are defines/functions that are used and were changed in the switch to 2.6
|
||||
* and are needed to maintain full compatility with 2.5 */
|
||||
|
||||
enum {
|
||||
AVS_CS_YV12_25 = 1<<3 | AVS_CS_YUV | AVS_CS_PLANAR, // y-v-u, planar
|
||||
AVS_CS_I420_25 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR, // y-u-v, planar
|
||||
};
|
||||
|
||||
AVSC_INLINE int avs_get_height_p_25(const AVS_VideoFrame * p, int plane) {
|
||||
switch (plane)
|
||||
{
|
||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
||||
if (p->pitchUV)
|
||||
return p->height>>1;
|
||||
return 0;
|
||||
}
|
||||
return p->height;}
|
||||
|
||||
AVSC_INLINE int avs_get_row_size_p_25(const AVS_VideoFrame * p, int plane) {
|
||||
int r;
|
||||
switch (plane)
|
||||
{
|
||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
||||
if (p->pitchUV)
|
||||
return p->row_size>>1;
|
||||
else
|
||||
return 0;
|
||||
case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
|
||||
if (p->pitchUV)
|
||||
{
|
||||
r = ((p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)) )>>1; // Aligned rowsize
|
||||
if (r < p->pitchUV)
|
||||
return r;
|
||||
return p->row_size>>1;
|
||||
}
|
||||
else
|
||||
return 0;
|
||||
case AVS_PLANAR_Y_ALIGNED:
|
||||
r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
|
||||
if (r <= p->pitch)
|
||||
return r;
|
||||
return p->row_size;
|
||||
}
|
||||
return p->row_size;
|
||||
}
|
||||
|
||||
AVSC_INLINE int avs_is_yv12_25(const AVS_VideoInfo * p)
|
||||
{ return ((p->pixel_type & AVS_CS_YV12_25) == AVS_CS_YV12_25)||((p->pixel_type & AVS_CS_I420_25) == AVS_CS_I420_25); }
|
||||
@@ -1,728 +0,0 @@
|
||||
// Avisynth C Interface Version 0.20
|
||||
// Copyright 2003 Kevin Atkinson
|
||||
|
||||
// This program is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program; if not, write to the Free Software
|
||||
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||||
// MA 02110-1301 USA, or visit
|
||||
// http://www.gnu.org/copyleft/gpl.html .
|
||||
//
|
||||
// As a special exception, I give you permission to link to the
|
||||
// Avisynth C interface with independent modules that communicate with
|
||||
// the Avisynth C interface solely through the interfaces defined in
|
||||
// avisynth_c.h, regardless of the license terms of these independent
|
||||
// modules, and to copy and distribute the resulting combined work
|
||||
// under terms of your choice, provided that every copy of the
|
||||
// combined work is accompanied by a complete copy of the source code
|
||||
// of the Avisynth C interface and Avisynth itself (with the version
|
||||
// used to produce the combined work), being distributed under the
|
||||
// terms of the GNU General Public License plus this exception. An
|
||||
// independent module is a module which is not derived from or based
|
||||
// on Avisynth C Interface, such as 3rd-party filters, import and
|
||||
// export plugins, or graphical user interfaces.
|
||||
|
||||
#ifndef __AVXSYNTH_C__
|
||||
#define __AVXSYNTH_C__
|
||||
|
||||
#include "windowsPorts/windows2linux.h"
|
||||
#include <stdarg.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
# define EXTERN_C extern "C"
|
||||
#else
|
||||
# define EXTERN_C
|
||||
#endif
|
||||
|
||||
#define AVSC_USE_STDCALL 1
|
||||
|
||||
#ifndef AVSC_USE_STDCALL
|
||||
# define AVSC_CC __cdecl
|
||||
#else
|
||||
# define AVSC_CC __stdcall
|
||||
#endif
|
||||
|
||||
#define AVSC_INLINE static __inline
|
||||
|
||||
#ifdef AVISYNTH_C_EXPORTS
|
||||
# define AVSC_EXPORT EXTERN_C
|
||||
# define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
|
||||
#else
|
||||
# define AVSC_EXPORT EXTERN_C __declspec(dllexport)
|
||||
# ifndef AVSC_NO_DECLSPEC
|
||||
# define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
|
||||
# else
|
||||
# define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifdef __GNUC__
|
||||
typedef long long int INT64;
|
||||
#else
|
||||
typedef __int64 INT64;
|
||||
#endif
|
||||
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Constants
|
||||
//
|
||||
|
||||
#ifndef __AVXSYNTH_H__
|
||||
enum { AVISYNTH_INTERFACE_VERSION = 3 };
|
||||
#endif
|
||||
|
||||
enum {AVS_SAMPLE_INT8 = 1<<0,
|
||||
AVS_SAMPLE_INT16 = 1<<1,
|
||||
AVS_SAMPLE_INT24 = 1<<2,
|
||||
AVS_SAMPLE_INT32 = 1<<3,
|
||||
AVS_SAMPLE_FLOAT = 1<<4};
|
||||
|
||||
enum {AVS_PLANAR_Y=1<<0,
|
||||
AVS_PLANAR_U=1<<1,
|
||||
AVS_PLANAR_V=1<<2,
|
||||
AVS_PLANAR_ALIGNED=1<<3,
|
||||
AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
|
||||
AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
|
||||
AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED};
|
||||
|
||||
// Colorspace properties.
|
||||
enum {AVS_CS_BGR = 1<<28,
|
||||
AVS_CS_YUV = 1<<29,
|
||||
AVS_CS_INTERLEAVED = 1<<30,
|
||||
AVS_CS_PLANAR = 1<<31};
|
||||
|
||||
// Specific colorformats
|
||||
enum {
|
||||
AVS_CS_UNKNOWN = 0,
|
||||
AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
|
||||
AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
|
||||
AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
|
||||
AVS_CS_YV12 = 1<<3 | AVS_CS_YUV | AVS_CS_PLANAR, // y-v-u, planar
|
||||
AVS_CS_I420 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR, // y-u-v, planar
|
||||
AVS_CS_IYUV = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR // same as above
|
||||
};
|
||||
|
||||
enum {
|
||||
AVS_IT_BFF = 1<<0,
|
||||
AVS_IT_TFF = 1<<1,
|
||||
AVS_IT_FIELDBASED = 1<<2};
|
||||
|
||||
enum {
|
||||
AVS_FILTER_TYPE=1,
|
||||
AVS_FILTER_INPUT_COLORSPACE=2,
|
||||
AVS_FILTER_OUTPUT_TYPE=9,
|
||||
AVS_FILTER_NAME=4,
|
||||
AVS_FILTER_AUTHOR=5,
|
||||
AVS_FILTER_VERSION=6,
|
||||
AVS_FILTER_ARGS=7,
|
||||
AVS_FILTER_ARGS_INFO=8,
|
||||
AVS_FILTER_ARGS_DESCRIPTION=10,
|
||||
AVS_FILTER_DESCRIPTION=11};
|
||||
|
||||
enum { //SUBTYPES
|
||||
AVS_FILTER_TYPE_AUDIO=1,
|
||||
AVS_FILTER_TYPE_VIDEO=2,
|
||||
AVS_FILTER_OUTPUT_TYPE_SAME=3,
|
||||
AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4};
|
||||
|
||||
enum {
|
||||
AVS_CACHE_NOTHING=0,
|
||||
AVS_CACHE_RANGE=1,
|
||||
AVS_CACHE_ALL=2,
|
||||
AVS_CACHE_AUDIO=3,
|
||||
AVS_CACHE_AUDIO_NONE=4,
|
||||
AVS_CACHE_AUDIO_AUTO=5
|
||||
};
|
||||
|
||||
#define AVS_FRAME_ALIGN 16
|
||||
|
||||
typedef struct AVS_Clip AVS_Clip;
|
||||
typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_VideoInfo
|
||||
//
|
||||
|
||||
// AVS_VideoInfo is layed out identicly to VideoInfo
|
||||
typedef struct AVS_VideoInfo {
|
||||
int width, height; // width=0 means no video
|
||||
unsigned fps_numerator, fps_denominator;
|
||||
int num_frames;
|
||||
|
||||
int pixel_type;
|
||||
|
||||
int audio_samples_per_second; // 0 means no audio
|
||||
int sample_type;
|
||||
INT64 num_audio_samples;
|
||||
int nchannels;
|
||||
|
||||
// Imagetype properties
|
||||
|
||||
int image_type;
|
||||
} AVS_VideoInfo;
|
||||
|
||||
// useful functions of the above
|
||||
AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p)
|
||||
{ return (p->width!=0); }
|
||||
|
||||
AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p)
|
||||
{ return (p->audio_samples_per_second!=0); }
|
||||
|
||||
AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p)
|
||||
{ return !!(p->pixel_type&AVS_CS_BGR); }
|
||||
|
||||
AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
|
||||
|
||||
AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
|
||||
|
||||
AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p)
|
||||
{ return !!(p->pixel_type&AVS_CS_YUV ); }
|
||||
|
||||
AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p)
|
||||
{ return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
|
||||
|
||||
AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p)
|
||||
{ return ((p->pixel_type & AVS_CS_YV12) == AVS_CS_YV12)||((p->pixel_type & AVS_CS_I420) == AVS_CS_I420); }
|
||||
|
||||
AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space)
|
||||
{ return ((p->pixel_type & c_space) == c_space); }
|
||||
|
||||
AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property)
|
||||
{ return ((p->pixel_type & property)==property ); }
|
||||
|
||||
AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p)
|
||||
{ return !!(p->pixel_type & AVS_CS_PLANAR); }
|
||||
|
||||
AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p)
|
||||
{ return !!(p->image_type & AVS_IT_FIELDBASED); }
|
||||
|
||||
AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p)
|
||||
{ return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); }
|
||||
|
||||
AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p)
|
||||
{ return !!(p->image_type & AVS_IT_BFF); }
|
||||
|
||||
AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p)
|
||||
{ return !!(p->image_type & AVS_IT_TFF); }
|
||||
|
||||
AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p)
|
||||
{
|
||||
switch (p->pixel_type) {
|
||||
case AVS_CS_BGR24: return 24;
|
||||
case AVS_CS_BGR32: return 32;
|
||||
case AVS_CS_YUY2: return 16;
|
||||
case AVS_CS_YV12:
|
||||
case AVS_CS_I420: return 12;
|
||||
default: return 0;
|
||||
}
|
||||
}
|
||||
AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels)
|
||||
{ return pixels * (avs_bits_per_pixel(p)>>3); } // Will work on planar images, but will return only luma planes
|
||||
|
||||
AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p)
|
||||
{ return avs_bytes_from_pixels(p,p->width); } // Also only returns first plane on planar images
|
||||
|
||||
AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi)
|
||||
{ if (avs_is_planar(vi)) {int p = vi->height * ((avs_row_size(vi)+3) & ~3); p+=p>>1; return p; } return vi->height * ((avs_row_size(vi)+3) & ~3); }
|
||||
|
||||
AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p)
|
||||
{ return p->audio_samples_per_second; }
|
||||
|
||||
|
||||
AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p)
|
||||
{
|
||||
switch (p->sample_type) {
|
||||
case AVS_SAMPLE_INT8: return sizeof(signed char);
|
||||
case AVS_SAMPLE_INT16: return sizeof(signed short);
|
||||
case AVS_SAMPLE_INT24: return 3;
|
||||
case AVS_SAMPLE_INT32: return sizeof(signed int);
|
||||
case AVS_SAMPLE_FLOAT: return sizeof(float);
|
||||
default: return 0;
|
||||
}
|
||||
}
|
||||
AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p)
|
||||
{ return p->nchannels*avs_bytes_per_channel_sample(p);}
|
||||
|
||||
AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames)
|
||||
{ return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); }
|
||||
|
||||
AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
|
||||
{ return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); }
|
||||
|
||||
AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes)
|
||||
{ return bytes / avs_bytes_per_audio_sample(p); }
|
||||
|
||||
AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
|
||||
{ return samples * avs_bytes_per_audio_sample(p); }
|
||||
|
||||
AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p)
|
||||
{ return p->nchannels; }
|
||||
|
||||
AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p)
|
||||
{ return p->sample_type;}
|
||||
|
||||
// useful mutator
|
||||
AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property)
|
||||
{ p->image_type|=property; }
|
||||
|
||||
AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property)
|
||||
{ p->image_type&=~property; }
|
||||
|
||||
AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased)
|
||||
{ if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; }
|
||||
|
||||
AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator)
|
||||
{
|
||||
unsigned x=numerator, y=denominator;
|
||||
while (y) { // find gcd
|
||||
unsigned t = x%y; x = y; y = t;
|
||||
}
|
||||
p->fps_numerator = numerator/x;
|
||||
p->fps_denominator = denominator/x;
|
||||
}
|
||||
|
||||
AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y)
|
||||
{
|
||||
return (x->pixel_type == y->pixel_type)
|
||||
|| (avs_is_yv12(x) && avs_is_yv12(y));
|
||||
}
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_VideoFrame
|
||||
//
|
||||
|
||||
// VideoFrameBuffer holds information about a memory block which is used
|
||||
// for video data. For efficiency, instances of this class are not deleted
|
||||
// when the refcount reaches zero; instead they're stored in a linked list
|
||||
// to be reused. The instances are deleted when the corresponding AVS
|
||||
// file is closed.
|
||||
|
||||
// AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
|
||||
// DO NOT USE THIS STRUCTURE DIRECTLY
|
||||
typedef struct AVS_VideoFrameBuffer {
|
||||
unsigned char * data;
|
||||
int data_size;
|
||||
// sequence_number is incremented every time the buffer is changed, so
|
||||
// that stale views can tell they're no longer valid.
|
||||
long sequence_number;
|
||||
|
||||
long refcount;
|
||||
} AVS_VideoFrameBuffer;
|
||||
|
||||
// VideoFrame holds a "window" into a VideoFrameBuffer.
|
||||
|
||||
// AVS_VideoFrame is layed out identicly to IVideoFrame
|
||||
// DO NOT USE THIS STRUCTURE DIRECTLY
|
||||
typedef struct AVS_VideoFrame {
|
||||
int refcount;
|
||||
AVS_VideoFrameBuffer * vfb;
|
||||
int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture.
|
||||
} AVS_VideoFrame;
|
||||
|
||||
// Access functions for AVS_VideoFrame
|
||||
AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) {
|
||||
return p->pitch;}
|
||||
|
||||
AVSC_INLINE int avs_get_pitch_p(const AVS_VideoFrame * p, int plane) {
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: case AVS_PLANAR_V: return p->pitchUV;}
|
||||
return p->pitch;}
|
||||
|
||||
AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) {
|
||||
return p->row_size; }
|
||||
|
||||
AVSC_INLINE int avs_get_row_size_p(const AVS_VideoFrame * p, int plane) {
|
||||
int r;
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
||||
if (p->pitchUV) return p->row_size>>1;
|
||||
else return 0;
|
||||
case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
|
||||
if (p->pitchUV) {
|
||||
r = ((p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)) )>>1; // Aligned rowsize
|
||||
if (r < p->pitchUV)
|
||||
return r;
|
||||
return p->row_size>>1;
|
||||
} else return 0;
|
||||
case AVS_PLANAR_Y_ALIGNED:
|
||||
r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
|
||||
if (r <= p->pitch)
|
||||
return r;
|
||||
return p->row_size;
|
||||
}
|
||||
return p->row_size;
|
||||
}
|
||||
|
||||
AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) {
|
||||
return p->height;}
|
||||
|
||||
AVSC_INLINE int avs_get_height_p(const AVS_VideoFrame * p, int plane) {
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
||||
if (p->pitchUV) return p->height>>1;
|
||||
return 0;
|
||||
}
|
||||
return p->height;}
|
||||
|
||||
AVSC_INLINE const unsigned char* avs_get_read_ptr(const AVS_VideoFrame * p) {
|
||||
return p->vfb->data + p->offset;}
|
||||
|
||||
AVSC_INLINE const unsigned char* avs_get_read_ptr_p(const AVS_VideoFrame * p, int plane)
|
||||
{
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
||||
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
||||
default: return p->vfb->data + p->offset;}
|
||||
}
|
||||
|
||||
AVSC_INLINE int avs_is_writable(const AVS_VideoFrame * p) {
|
||||
return (p->refcount == 1 && p->vfb->refcount == 1);}
|
||||
|
||||
AVSC_INLINE unsigned char* avs_get_write_ptr(const AVS_VideoFrame * p)
|
||||
{
|
||||
if (avs_is_writable(p)) {
|
||||
++p->vfb->sequence_number;
|
||||
return p->vfb->data + p->offset;
|
||||
} else
|
||||
return 0;
|
||||
}
|
||||
|
||||
AVSC_INLINE unsigned char* avs_get_write_ptr_p(const AVS_VideoFrame * p, int plane)
|
||||
{
|
||||
if (plane==AVS_PLANAR_Y && avs_is_writable(p)) {
|
||||
++p->vfb->sequence_number;
|
||||
return p->vfb->data + p->offset;
|
||||
} else if (plane==AVS_PLANAR_Y) {
|
||||
return 0;
|
||||
} else {
|
||||
switch (plane) {
|
||||
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
||||
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
||||
default: return p->vfb->data + p->offset;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#if defined __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif // __cplusplus
|
||||
AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *);
|
||||
// makes a shallow copy of a video frame
|
||||
AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *);
|
||||
#if defined __cplusplus
|
||||
}
|
||||
#endif // __cplusplus
|
||||
|
||||
#ifndef AVSC_NO_DECLSPEC
|
||||
AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f)
|
||||
{avs_release_video_frame(f);}
|
||||
AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f)
|
||||
{return avs_copy_video_frame(f);}
|
||||
#endif
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_Value
|
||||
//
|
||||
|
||||
// Treat AVS_Value as a fat pointer. That is use avs_copy_value
|
||||
// and avs_release_value appropiaty as you would if AVS_Value was
|
||||
// a pointer.
|
||||
|
||||
// To maintain source code compatibility with future versions of the
|
||||
// avisynth_c API don't use the AVS_Value directly. Use the helper
|
||||
// functions below.
|
||||
|
||||
// AVS_Value is layed out identicly to AVSValue
|
||||
typedef struct AVS_Value AVS_Value;
|
||||
struct AVS_Value {
|
||||
short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
|
||||
// for some function e'rror
|
||||
short array_size;
|
||||
union {
|
||||
void * clip; // do not use directly, use avs_take_clip
|
||||
char boolean;
|
||||
int integer;
|
||||
INT64 integer64; // match addition of __int64 to avxplugin.h
|
||||
float floating_pt;
|
||||
const char * string;
|
||||
const AVS_Value * array;
|
||||
} d;
|
||||
};
|
||||
|
||||
// AVS_Value should be initilized with avs_void.
|
||||
// Should also set to avs_void after the value is released
|
||||
// with avs_copy_value. Consider it the equalvent of setting
|
||||
// a pointer to NULL
|
||||
static const AVS_Value avs_void = {'v'};
|
||||
|
||||
AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src);
|
||||
AVSC_API(void, avs_release_value)(AVS_Value);
|
||||
|
||||
AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; }
|
||||
AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
|
||||
AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; }
|
||||
AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; }
|
||||
AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
|
||||
AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; }
|
||||
AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; }
|
||||
AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; }
|
||||
|
||||
#if defined __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif // __cplusplus
|
||||
AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
|
||||
AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *);
|
||||
#if defined __cplusplus
|
||||
}
|
||||
#endif // __cplusplus
|
||||
|
||||
AVSC_INLINE int avs_as_bool(AVS_Value v)
|
||||
{ return v.d.boolean; }
|
||||
AVSC_INLINE int avs_as_int(AVS_Value v)
|
||||
{ return v.d.integer; }
|
||||
AVSC_INLINE const char * avs_as_string(AVS_Value v)
|
||||
{ return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
|
||||
AVSC_INLINE double avs_as_float(AVS_Value v)
|
||||
{ return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
|
||||
AVSC_INLINE const char * avs_as_error(AVS_Value v)
|
||||
{ return avs_is_error(v) ? v.d.string : 0; }
|
||||
AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v)
|
||||
{ return v.d.array; }
|
||||
AVSC_INLINE int avs_array_size(AVS_Value v)
|
||||
{ return avs_is_array(v) ? v.array_size : 1; }
|
||||
AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
|
||||
{ return avs_is_array(v) ? v.d.array[index] : v; }
|
||||
|
||||
// only use these functions on am AVS_Value that does not already have
|
||||
// an active value. Remember, treat AVS_Value as a fat pointer.
|
||||
AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
|
||||
{ AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
|
||||
AVSC_INLINE AVS_Value avs_new_value_int(int v0)
|
||||
{ AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; }
|
||||
AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
|
||||
{ AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
|
||||
AVSC_INLINE AVS_Value avs_new_value_float(float v0)
|
||||
{ AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;}
|
||||
AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
|
||||
{ AVS_Value v; v.type = 'e'; v.d.string = v0; return v; }
|
||||
#ifndef AVSC_NO_DECLSPEC
|
||||
AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
|
||||
{ AVS_Value v; avs_set_to_clip(&v, v0); return v; }
|
||||
#endif
|
||||
AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
|
||||
{ AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_Clip
|
||||
//
|
||||
#if defined __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif // __cplusplus
|
||||
AVSC_API(void, avs_release_clip)(AVS_Clip *);
|
||||
AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *);
|
||||
|
||||
AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error
|
||||
|
||||
AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *);
|
||||
|
||||
AVSC_API(int, avs_get_version)(AVS_Clip *);
|
||||
|
||||
AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n);
|
||||
// The returned video frame must be released with avs_release_video_frame
|
||||
|
||||
AVSC_API(int, avs_get_parity)(AVS_Clip *, int n);
|
||||
// return field parity if field_based, else parity of first field in frame
|
||||
|
||||
AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf,
|
||||
INT64 start, INT64 count);
|
||||
// start and count are in samples
|
||||
|
||||
AVSC_API(int, avs_set_cache_hints)(AVS_Clip *,
|
||||
int cachehints, size_t frame_range);
|
||||
#if defined __cplusplus
|
||||
}
|
||||
#endif // __cplusplus
|
||||
|
||||
// This is the callback type used by avs_add_function
|
||||
typedef AVS_Value (AVSC_CC * AVS_ApplyFunc)
|
||||
(AVS_ScriptEnvironment *, AVS_Value args, void * user_data);
|
||||
|
||||
typedef struct AVS_FilterInfo AVS_FilterInfo;
|
||||
struct AVS_FilterInfo
|
||||
{
|
||||
// these members should not be modified outside of the AVS_ApplyFunc callback
|
||||
AVS_Clip * child;
|
||||
AVS_VideoInfo vi;
|
||||
AVS_ScriptEnvironment * env;
|
||||
AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n);
|
||||
int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n);
|
||||
int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf,
|
||||
INT64 start, INT64 count);
|
||||
int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints,
|
||||
int frame_range);
|
||||
void (AVSC_CC * free_filter)(AVS_FilterInfo *);
|
||||
|
||||
// Should be set when ever there is an error to report.
|
||||
// It is cleared before any of the above methods are called
|
||||
const char * error;
|
||||
// this is to store whatever and may be modified at will
|
||||
void * user_data;
|
||||
};
|
||||
|
||||
// Create a new filter
|
||||
// fi is set to point to the AVS_FilterInfo so that you can
|
||||
// modify it once it is initilized.
|
||||
// store_child should generally be set to true. If it is not
|
||||
// set than ALL methods (the function pointers) must be defined
|
||||
// If it is set than you do not need to worry about freeing the child
|
||||
// clip.
|
||||
#if defined __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif // __cplusplus
|
||||
AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e,
|
||||
AVS_FilterInfo * * fi,
|
||||
AVS_Value child, int store_child);
|
||||
#if defined __cplusplus
|
||||
}
|
||||
#endif // __cplusplus
|
||||
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// AVS_ScriptEnvironment
|
||||
//
|
||||
|
||||
// For GetCPUFlags. These are backwards-compatible with those in VirtualDub.
|
||||
enum {
|
||||
/* slowest CPU to support extension */
|
||||
AVS_CPU_FORCE = 0x01, // N/A
|
||||
AVS_CPU_FPU = 0x02, // 386/486DX
|
||||
AVS_CPU_MMX = 0x04, // P55C, K6, PII
|
||||
AVS_CPU_INTEGER_SSE = 0x08, // PIII, Athlon
|
||||
AVS_CPU_SSE = 0x10, // PIII, Athlon XP/MP
|
||||
AVS_CPU_SSE2 = 0x20, // PIV, Hammer
|
||||
AVS_CPU_3DNOW = 0x40, // K6-2
|
||||
AVS_CPU_3DNOW_EXT = 0x80, // Athlon
|
||||
AVS_CPU_X86_64 = 0xA0, // Hammer (note: equiv. to 3DNow + SSE2,
|
||||
// which only Hammer will have anyway)
|
||||
};
|
||||
|
||||
#if defined __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif // __cplusplus
|
||||
AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error
|
||||
|
||||
AVSC_API(long, avs_get_cpu_flags)(AVS_ScriptEnvironment *);
|
||||
AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version);
|
||||
|
||||
AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length);
|
||||
AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...);
|
||||
|
||||
AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, va_list val);
|
||||
// note: val is really a va_list; I hope everyone typedefs va_list to a pointer
|
||||
|
||||
AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *,
|
||||
const char * name, const char * params,
|
||||
AVS_ApplyFunc apply, void * user_data);
|
||||
|
||||
AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name);
|
||||
|
||||
AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name,
|
||||
AVS_Value args, const char** arg_names);
|
||||
// The returned value must be be released with avs_release_value
|
||||
|
||||
AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name);
|
||||
// The returned value must be be released with avs_release_value
|
||||
|
||||
AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val);
|
||||
|
||||
AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val);
|
||||
|
||||
//void avs_push_context(AVS_ScriptEnvironment *, int level=0);
|
||||
//void avs_pop_context(AVS_ScriptEnvironment *);
|
||||
|
||||
AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *,
|
||||
const AVS_VideoInfo * vi, int align);
|
||||
// align should be at least 16
|
||||
#if defined __cplusplus
|
||||
}
|
||||
#endif // __cplusplus
|
||||
|
||||
#ifndef AVSC_NO_DECLSPEC
|
||||
AVSC_INLINE
|
||||
AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env,
|
||||
const AVS_VideoInfo * vi)
|
||||
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
||||
|
||||
AVSC_INLINE
|
||||
AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env,
|
||||
const AVS_VideoInfo * vi)
|
||||
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
||||
#endif
|
||||
|
||||
#if defined __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif // __cplusplus
|
||||
AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf);
|
||||
|
||||
AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, unsigned char* dstp, int dst_pitch, const unsigned char* srcp, int src_pitch, int row_size, int height);
|
||||
|
||||
typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env);
|
||||
AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data);
|
||||
|
||||
AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height);
|
||||
// The returned video frame must be be released
|
||||
|
||||
AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem);
|
||||
|
||||
AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir);
|
||||
|
||||
// avisynth.dll exports this; it's a way to use it as a library, without
|
||||
// writing an AVS script or without going through AVIFile.
|
||||
AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version);
|
||||
#if defined __cplusplus
|
||||
}
|
||||
#endif // __cplusplus
|
||||
|
||||
// this symbol is the entry point for the plugin and must
|
||||
// be defined
|
||||
AVSC_EXPORT
|
||||
const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env);
|
||||
|
||||
|
||||
#if defined __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif // __cplusplus
|
||||
AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *);
|
||||
|
||||
|
||||
AVSC_API(AVS_VideoFrame *, avs_subframe_planar)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int new_pitchUV);
|
||||
// The returned video frame must be be released
|
||||
#if defined __cplusplus
|
||||
}
|
||||
#endif // __cplusplus
|
||||
|
||||
#endif //__AVXSYNTH_C__
|
||||
@@ -1,85 +0,0 @@
|
||||
#ifndef __DATA_TYPE_CONVERSIONS_H__
|
||||
#define __DATA_TYPE_CONVERSIONS_H__
|
||||
|
||||
#include <stdint.h>
|
||||
#include <wchar.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
namespace avxsynth {
|
||||
#endif // __cplusplus
|
||||
|
||||
typedef int64_t __int64;
|
||||
typedef int32_t __int32;
|
||||
#ifdef __cplusplus
|
||||
typedef bool BOOL;
|
||||
#else
|
||||
typedef uint32_t BOOL;
|
||||
#endif // __cplusplus
|
||||
typedef void* HMODULE;
|
||||
typedef void* LPVOID;
|
||||
typedef void* PVOID;
|
||||
typedef PVOID HANDLE;
|
||||
typedef HANDLE HWND;
|
||||
typedef HANDLE HINSTANCE;
|
||||
typedef void* HDC;
|
||||
typedef void* HBITMAP;
|
||||
typedef void* HICON;
|
||||
typedef void* HFONT;
|
||||
typedef void* HGDIOBJ;
|
||||
typedef void* HBRUSH;
|
||||
typedef void* HMMIO;
|
||||
typedef void* HACMSTREAM;
|
||||
typedef void* HACMDRIVER;
|
||||
typedef void* HIC;
|
||||
typedef void* HACMOBJ;
|
||||
typedef HACMSTREAM* LPHACMSTREAM;
|
||||
typedef void* HACMDRIVERID;
|
||||
typedef void* LPHACMDRIVER;
|
||||
typedef unsigned char BYTE;
|
||||
typedef BYTE* LPBYTE;
|
||||
typedef char TCHAR;
|
||||
typedef TCHAR* LPTSTR;
|
||||
typedef const TCHAR* LPCTSTR;
|
||||
typedef char* LPSTR;
|
||||
typedef LPSTR LPOLESTR;
|
||||
typedef const char* LPCSTR;
|
||||
typedef LPCSTR LPCOLESTR;
|
||||
typedef wchar_t WCHAR;
|
||||
typedef unsigned short WORD;
|
||||
typedef unsigned int UINT;
|
||||
typedef UINT MMRESULT;
|
||||
typedef uint32_t DWORD;
|
||||
typedef DWORD COLORREF;
|
||||
typedef DWORD FOURCC;
|
||||
typedef DWORD HRESULT;
|
||||
typedef DWORD* LPDWORD;
|
||||
typedef DWORD* DWORD_PTR;
|
||||
typedef int32_t LONG;
|
||||
typedef int32_t* LONG_PTR;
|
||||
typedef LONG_PTR LRESULT;
|
||||
typedef uint32_t ULONG;
|
||||
typedef uint32_t* ULONG_PTR;
|
||||
//typedef __int64_t intptr_t;
|
||||
typedef uint64_t _fsize_t;
|
||||
|
||||
|
||||
//
|
||||
// Structures
|
||||
//
|
||||
|
||||
typedef struct _GUID {
|
||||
DWORD Data1;
|
||||
WORD Data2;
|
||||
WORD Data3;
|
||||
BYTE Data4[8];
|
||||
} GUID;
|
||||
|
||||
typedef GUID REFIID;
|
||||
typedef GUID CLSID;
|
||||
typedef CLSID* LPCLSID;
|
||||
typedef GUID IID;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}; // namespace avxsynth
|
||||
#endif // __cplusplus
|
||||
#endif // __DATA_TYPE_CONVERSIONS_H__
|
||||
@@ -1,77 +0,0 @@
|
||||
#ifndef __WINDOWS2LINUX_H__
|
||||
#define __WINDOWS2LINUX_H__
|
||||
|
||||
/*
|
||||
* LINUX SPECIFIC DEFINITIONS
|
||||
*/
|
||||
//
|
||||
// Data types conversions
|
||||
//
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include "basicDataTypeConversions.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
namespace avxsynth {
|
||||
#endif // __cplusplus
|
||||
//
|
||||
// purposefully define the following MSFT definitions
|
||||
// to mean nothing (as they do not mean anything on Linux)
|
||||
//
|
||||
#define __stdcall
|
||||
#define __cdecl
|
||||
#define noreturn
|
||||
#define __declspec(x)
|
||||
#define STDAPI extern "C" HRESULT
|
||||
#define STDMETHODIMP HRESULT __stdcall
|
||||
#define STDMETHODIMP_(x) x __stdcall
|
||||
|
||||
#define STDMETHOD(x) virtual HRESULT x
|
||||
#define STDMETHOD_(a, x) virtual a x
|
||||
|
||||
#ifndef TRUE
|
||||
#define TRUE true
|
||||
#endif
|
||||
|
||||
#ifndef FALSE
|
||||
#define FALSE false
|
||||
#endif
|
||||
|
||||
#define S_OK (0x00000000)
|
||||
#define S_FALSE (0x00000001)
|
||||
#define E_NOINTERFACE (0X80004002)
|
||||
#define E_POINTER (0x80004003)
|
||||
#define E_FAIL (0x80004005)
|
||||
#define E_OUTOFMEMORY (0x8007000E)
|
||||
|
||||
#define INVALID_HANDLE_VALUE ((HANDLE)((LONG_PTR)-1))
|
||||
#define FAILED(hr) ((hr) & 0x80000000)
|
||||
#define SUCCEEDED(hr) (!FAILED(hr))
|
||||
|
||||
|
||||
//
|
||||
// Functions
|
||||
//
|
||||
#define MAKEDWORD(a,b,c,d) ((a << 24) | (b << 16) | (c << 8) | (d))
|
||||
#define MAKEWORD(a,b) ((a << 8) | (b))
|
||||
|
||||
#define lstrlen strlen
|
||||
#define lstrcpy strcpy
|
||||
#define lstrcmpi strcasecmp
|
||||
#define _stricmp strcasecmp
|
||||
#define InterlockedIncrement(x) __sync_fetch_and_add((x), 1)
|
||||
#define InterlockedDecrement(x) __sync_fetch_and_sub((x), 1)
|
||||
// Windows uses (new, old) ordering but GCC has (old, new)
|
||||
#define InterlockedCompareExchange(x,y,z) __sync_val_compare_and_swap(x,z,y)
|
||||
|
||||
#define UInt32x32To64(a, b) ( (uint64_t) ( ((uint64_t)((uint32_t)(a))) * ((uint32_t)(b)) ) )
|
||||
#define Int64ShrlMod32(a, b) ( (uint64_t) ( (uint64_t)(a) >> (b) ) )
|
||||
#define Int32x32To64(a, b) ((__int64)(((__int64)((long)(a))) * ((long)(b))))
|
||||
|
||||
#define MulDiv(nNumber, nNumerator, nDenominator) (int32_t) (((int64_t) (nNumber) * (int64_t) (nNumerator) + (int64_t) ((nDenominator)/2)) / (int64_t) (nDenominator))
|
||||
|
||||
#ifdef __cplusplus
|
||||
}; // namespace avxsynth
|
||||
#endif // __cplusplus
|
||||
|
||||
#endif // __WINDOWS2LINUX_H__
|
||||
@@ -1,35 +0,0 @@
|
||||
/*
|
||||
* Work around broken floating point limits on some systems.
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include_next <float.h>
|
||||
|
||||
#ifdef FLT_MAX
|
||||
#undef FLT_MAX
|
||||
#define FLT_MAX 3.40282346638528859812e+38F
|
||||
|
||||
#undef FLT_MIN
|
||||
#define FLT_MIN 1.17549435082228750797e-38F
|
||||
|
||||
#undef DBL_MAX
|
||||
#define DBL_MAX ((double)1.79769313486231570815e+308L)
|
||||
|
||||
#undef DBL_MIN
|
||||
#define DBL_MIN ((double)2.22507385850720138309e-308L)
|
||||
#endif
|
||||
@@ -1,22 +0,0 @@
|
||||
/*
|
||||
* Work around broken floating point limits on some systems.
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include_next <limits.h>
|
||||
#include <float.h>
|
||||
@@ -1,84 +0,0 @@
|
||||
/*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file was copied from the following newsgroup posting:
|
||||
*
|
||||
* Newsgroups: mod.std.unix
|
||||
* Subject: public domain AT&T getopt source
|
||||
* Date: 3 Nov 85 19:34:15 GMT
|
||||
*
|
||||
* Here's something you've all been waiting for: the AT&T public domain
|
||||
* source for getopt(3). It is the code which was given out at the 1985
|
||||
* UNIFORUM conference in Dallas. I obtained it by electronic mail
|
||||
* directly from AT&T. The people there assure me that it is indeed
|
||||
* in the public domain.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
static int opterr = 1;
|
||||
static int optind = 1;
|
||||
static int optopt;
|
||||
static char *optarg;
|
||||
|
||||
static int getopt(int argc, char *argv[], char *opts)
|
||||
{
|
||||
static int sp = 1;
|
||||
int c;
|
||||
char *cp;
|
||||
|
||||
if (sp == 1) {
|
||||
if (optind >= argc ||
|
||||
argv[optind][0] != '-' || argv[optind][1] == '\0')
|
||||
return EOF;
|
||||
else if (!strcmp(argv[optind], "--")) {
|
||||
optind++;
|
||||
return EOF;
|
||||
}
|
||||
}
|
||||
optopt = c = argv[optind][sp];
|
||||
if (c == ':' || !(cp = strchr(opts, c))) {
|
||||
fprintf(stderr, ": illegal option -- %c\n", c);
|
||||
if (argv[optind][++sp] == '\0') {
|
||||
optind++;
|
||||
sp = 1;
|
||||
}
|
||||
return '?';
|
||||
}
|
||||
if (*++cp == ':') {
|
||||
if (argv[optind][sp+1] != '\0')
|
||||
optarg = &argv[optind++][sp+1];
|
||||
else if(++optind >= argc) {
|
||||
fprintf(stderr, ": option requires an argument -- %c\n", c);
|
||||
sp = 1;
|
||||
return '?';
|
||||
} else
|
||||
optarg = argv[optind++];
|
||||
sp = 1;
|
||||
} else {
|
||||
if (argv[optind][++sp] == '\0') {
|
||||
sp = 1;
|
||||
optind++;
|
||||
}
|
||||
optarg = NULL;
|
||||
}
|
||||
|
||||
return c;
|
||||
}
|
||||
@@ -1,71 +0,0 @@
|
||||
/*
|
||||
* C99-compatible snprintf() and vsnprintf() implementations
|
||||
* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
#include <limits.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "compat/va_copy.h"
|
||||
#include "libavutil/error.h"
|
||||
|
||||
#if defined(__MINGW32__)
|
||||
#define EOVERFLOW EFBIG
|
||||
#endif
|
||||
|
||||
int avpriv_snprintf(char *s, size_t n, const char *fmt, ...)
|
||||
{
|
||||
va_list ap;
|
||||
int ret;
|
||||
|
||||
va_start(ap, fmt);
|
||||
ret = avpriv_vsnprintf(s, n, fmt, ap);
|
||||
va_end(ap);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int avpriv_vsnprintf(char *s, size_t n, const char *fmt,
|
||||
va_list ap)
|
||||
{
|
||||
int ret;
|
||||
va_list ap_copy;
|
||||
|
||||
if (n == 0)
|
||||
return _vscprintf(fmt, ap);
|
||||
else if (n > INT_MAX)
|
||||
return AVERROR(EOVERFLOW);
|
||||
|
||||
/* we use n - 1 here because if the buffer is not big enough, the MS
|
||||
* runtime libraries don't add a terminating zero at the end. MSDN
|
||||
* recommends to provide _snprintf/_vsnprintf() a buffer size that
|
||||
* is one less than the actual buffer, and zero it before calling
|
||||
* _snprintf/_vsnprintf() to workaround this problem.
|
||||
* See http://msdn.microsoft.com/en-us/library/1kt27hek(v=vs.80).aspx */
|
||||
memset(s, 0, n);
|
||||
va_copy(ap_copy, ap);
|
||||
ret = _vsnprintf(s, n - 1, fmt, ap_copy);
|
||||
va_end(ap_copy);
|
||||
if (ret == -1)
|
||||
ret = _vscprintf(fmt, ap);
|
||||
|
||||
return ret;
|
||||
}
|
||||
@@ -1,38 +0,0 @@
|
||||
/*
|
||||
* C99-compatible snprintf() and vsnprintf() implementations
|
||||
* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef COMPAT_SNPRINTF_H
|
||||
#define COMPAT_SNPRINTF_H
|
||||
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
|
||||
int avpriv_snprintf(char *s, size_t n, const char *fmt, ...);
|
||||
int avpriv_vsnprintf(char *s, size_t n, const char *fmt, va_list ap);
|
||||
|
||||
#undef snprintf
|
||||
#undef _snprintf
|
||||
#undef vsnprintf
|
||||
#define snprintf avpriv_snprintf
|
||||
#define _snprintf avpriv_snprintf
|
||||
#define vsnprintf avpriv_vsnprintf
|
||||
|
||||
#endif /* COMPAT_SNPRINTF_H */
|
||||
@@ -1,164 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2011 KO Myung-Hun <komh@chollian.net>
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* os2threads to pthreads wrapper
|
||||
*/
|
||||
|
||||
#ifndef AVCODEC_OS2PTHREADS_H
|
||||
#define AVCODEC_OS2PTHREADS_H
|
||||
|
||||
#define INCL_DOS
|
||||
#include <os2.h>
|
||||
|
||||
#undef __STRICT_ANSI__ /* for _beginthread() */
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "libavutil/mem.h"
|
||||
|
||||
typedef TID pthread_t;
|
||||
typedef void pthread_attr_t;
|
||||
|
||||
typedef HMTX pthread_mutex_t;
|
||||
typedef void pthread_mutexattr_t;
|
||||
|
||||
typedef struct {
|
||||
HEV event_sem;
|
||||
int wait_count;
|
||||
} pthread_cond_t;
|
||||
|
||||
typedef void pthread_condattr_t;
|
||||
|
||||
struct thread_arg {
|
||||
void *(*start_routine)(void *);
|
||||
void *arg;
|
||||
};
|
||||
|
||||
static void thread_entry(void *arg)
|
||||
{
|
||||
struct thread_arg *thread_arg = arg;
|
||||
|
||||
thread_arg->start_routine(thread_arg->arg);
|
||||
|
||||
av_free(thread_arg);
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void*), void *arg)
|
||||
{
|
||||
struct thread_arg *thread_arg;
|
||||
|
||||
thread_arg = av_mallocz(sizeof(struct thread_arg));
|
||||
|
||||
thread_arg->start_routine = start_routine;
|
||||
thread_arg->arg = arg;
|
||||
|
||||
*thread = _beginthread(thread_entry, NULL, 256 * 1024, thread_arg);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_join(pthread_t thread, void **value_ptr)
|
||||
{
|
||||
DosWaitThread((PTID)&thread, DCWW_WAIT);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
|
||||
{
|
||||
DosCreateMutexSem(NULL, (PHMTX)mutex, 0, FALSE);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_mutex_destroy(pthread_mutex_t *mutex)
|
||||
{
|
||||
DosCloseMutexSem(*(PHMTX)mutex);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_mutex_lock(pthread_mutex_t *mutex)
|
||||
{
|
||||
DosRequestMutexSem(*(PHMTX)mutex, SEM_INDEFINITE_WAIT);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_mutex_unlock(pthread_mutex_t *mutex)
|
||||
{
|
||||
DosReleaseMutexSem(*(PHMTX)mutex);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
|
||||
{
|
||||
DosCreateEventSem(NULL, &cond->event_sem, DCE_POSTONE, FALSE);
|
||||
|
||||
cond->wait_count = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_cond_destroy(pthread_cond_t *cond)
|
||||
{
|
||||
DosCloseEventSem(cond->event_sem);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_cond_signal(pthread_cond_t *cond)
|
||||
{
|
||||
if (cond->wait_count > 0) {
|
||||
DosPostEventSem(cond->event_sem);
|
||||
|
||||
cond->wait_count--;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_cond_broadcast(pthread_cond_t *cond)
|
||||
{
|
||||
while (cond->wait_count > 0) {
|
||||
DosPostEventSem(cond->event_sem);
|
||||
|
||||
cond->wait_count--;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_always_inline int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
|
||||
{
|
||||
cond->wait_count++;
|
||||
|
||||
pthread_mutex_unlock(mutex);
|
||||
|
||||
DosWaitEventSem(cond->event_sem, SEM_INDEFINITE_WAIT);
|
||||
|
||||
pthread_mutex_lock(mutex);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* AVCODEC_OS2PTHREADS_H */
|
||||
@@ -1,10 +0,0 @@
|
||||
#!/bin/sh
|
||||
|
||||
n=10
|
||||
|
||||
case "$1" in
|
||||
-n) n=$2; shift 2 ;;
|
||||
-n*) n=${1#-n}; shift ;;
|
||||
esac
|
||||
|
||||
exec sed ${n}q "$@"
|
||||
@@ -1,34 +0,0 @@
|
||||
/*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
int plan9_main(int argc, char **argv);
|
||||
|
||||
#undef main
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
/* The setfcr() function in lib9 is broken, must use asm. */
|
||||
#ifdef __i386
|
||||
short fcr;
|
||||
__asm__ volatile ("fstcw %0 \n"
|
||||
"or $63, %0 \n"
|
||||
"fldcw %0 \n"
|
||||
: "=m"(fcr));
|
||||
#endif
|
||||
|
||||
return plan9_main(argc, argv);
|
||||
}
|
||||
@@ -1,2 +0,0 @@
|
||||
#!/bin/sh
|
||||
exec awk "BEGIN { for (i = 2; i < ARGC; i++) printf \"$1\", ARGV[i] }" "$@"
|
||||
@@ -1,93 +0,0 @@
|
||||
/*
|
||||
* C99-compatible strtod() implementation
|
||||
* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <limits.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "libavutil/avstring.h"
|
||||
#include "libavutil/mathematics.h"
|
||||
|
||||
static char *check_nan_suffix(char *s)
|
||||
{
|
||||
char *start = s;
|
||||
|
||||
if (*s++ != '(')
|
||||
return start;
|
||||
|
||||
while ((*s >= 'a' && *s <= 'z') || (*s >= 'A' && *s <= 'Z') ||
|
||||
(*s >= '0' && *s <= '9') || *s == '_')
|
||||
s++;
|
||||
|
||||
return *s == ')' ? s + 1 : start;
|
||||
}
|
||||
|
||||
#undef strtod
|
||||
double strtod(const char *, char **);
|
||||
|
||||
double avpriv_strtod(const char *nptr, char **endptr)
|
||||
{
|
||||
char *end;
|
||||
double res;
|
||||
|
||||
/* Skip leading spaces */
|
||||
while (av_isspace(*nptr))
|
||||
nptr++;
|
||||
|
||||
if (!av_strncasecmp(nptr, "infinity", 8)) {
|
||||
end = nptr + 8;
|
||||
res = INFINITY;
|
||||
} else if (!av_strncasecmp(nptr, "inf", 3)) {
|
||||
end = nptr + 3;
|
||||
res = INFINITY;
|
||||
} else if (!av_strncasecmp(nptr, "+infinity", 9)) {
|
||||
end = nptr + 9;
|
||||
res = INFINITY;
|
||||
} else if (!av_strncasecmp(nptr, "+inf", 4)) {
|
||||
end = nptr + 4;
|
||||
res = INFINITY;
|
||||
} else if (!av_strncasecmp(nptr, "-infinity", 9)) {
|
||||
end = nptr + 9;
|
||||
res = -INFINITY;
|
||||
} else if (!av_strncasecmp(nptr, "-inf", 4)) {
|
||||
end = nptr + 4;
|
||||
res = -INFINITY;
|
||||
} else if (!av_strncasecmp(nptr, "nan", 3)) {
|
||||
end = check_nan_suffix(nptr + 3);
|
||||
res = NAN;
|
||||
} else if (!av_strncasecmp(nptr, "+nan", 4) ||
|
||||
!av_strncasecmp(nptr, "-nan", 4)) {
|
||||
end = check_nan_suffix(nptr + 4);
|
||||
res = NAN;
|
||||
} else if (!av_strncasecmp(nptr, "0x", 2) ||
|
||||
!av_strncasecmp(nptr, "-0x", 3) ||
|
||||
!av_strncasecmp(nptr, "+0x", 3)) {
|
||||
/* FIXME this doesn't handle exponents, non-integers (float/double)
|
||||
* and numbers too large for long long */
|
||||
res = strtoll(nptr, &end, 16);
|
||||
} else {
|
||||
res = strtod(nptr, &end);
|
||||
}
|
||||
|
||||
if (endptr)
|
||||
*endptr = end;
|
||||
|
||||
return res;
|
||||
}
|
||||
@@ -1,30 +0,0 @@
|
||||
/*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef FFMPEG_COMPAT_TMS470_MATH_H
|
||||
#define FFMPEG_COMPAT_TMS470_MATH_H
|
||||
|
||||
#include_next <math.h>
|
||||
|
||||
#undef INFINITY
|
||||
#undef NAN
|
||||
|
||||
#define INFINITY (*(const float*)((const unsigned []){ 0x7f800000 }))
|
||||
#define NAN (*(const float*)((const unsigned []){ 0x7fc00000 }))
|
||||
|
||||
#endif /* FFMPEG_COMPAT_TMS470_MATH_H */
|
||||
@@ -1,29 +0,0 @@
|
||||
/*
|
||||
* MSVC Compatible va_copy macro
|
||||
* Copyright (c) 2012 Derek Buitenhuis
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <stdarg.h>
|
||||
|
||||
#if !defined(va_copy) && defined(_MSC_VER)
|
||||
#define va_copy(dst, src) ((dst) = (src))
|
||||
#endif
|
||||
#if !defined(va_copy) && defined(__GNUC__) && __GNUC__ < 3
|
||||
#define va_copy(dst, src) __va_copy(dst, src)
|
||||
#endif
|
||||
@@ -1,316 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2010-2011 x264 project
|
||||
*
|
||||
* Authors: Steven Walters <kemuri9@gmail.com>
|
||||
* Pegasys Inc. <http://www.pegasys-inc.com>
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* w32threads to pthreads wrapper
|
||||
*/
|
||||
|
||||
#ifndef FFMPEG_COMPAT_W32PTHREADS_H
|
||||
#define FFMPEG_COMPAT_W32PTHREADS_H
|
||||
|
||||
/* Build up a pthread-like API using underlying Windows API. Have only static
|
||||
* methods so as to not conflict with a potentially linked in pthread-win32
|
||||
* library.
|
||||
* As most functions here are used without checking return values,
|
||||
* only implement return values as necessary. */
|
||||
|
||||
#define WIN32_LEAN_AND_MEAN
|
||||
#include <windows.h>
|
||||
#include <process.h>
|
||||
|
||||
#include "libavutil/attributes.h"
|
||||
#include "libavutil/common.h"
|
||||
#include "libavutil/internal.h"
|
||||
#include "libavutil/mem.h"
|
||||
|
||||
typedef struct pthread_t {
|
||||
void *handle;
|
||||
void *(*func)(void* arg);
|
||||
void *arg;
|
||||
void *ret;
|
||||
} pthread_t;
|
||||
|
||||
/* the conditional variable api for windows 6.0+ uses critical sections and
|
||||
* not mutexes */
|
||||
typedef CRITICAL_SECTION pthread_mutex_t;
|
||||
|
||||
/* This is the CONDITION_VARIABLE typedef for using Windows' native
|
||||
* conditional variables on kernels 6.0+. */
|
||||
#if HAVE_CONDITION_VARIABLE_PTR
|
||||
typedef CONDITION_VARIABLE pthread_cond_t;
|
||||
#else
|
||||
typedef struct pthread_cond_t {
|
||||
void *Ptr;
|
||||
} pthread_cond_t;
|
||||
#endif
|
||||
|
||||
#if _WIN32_WINNT >= 0x0600
|
||||
#define InitializeCriticalSection(x) InitializeCriticalSectionEx(x, 0, 0)
|
||||
#define WaitForSingleObject(a, b) WaitForSingleObjectEx(a, b, FALSE)
|
||||
#endif
|
||||
|
||||
static av_unused unsigned __stdcall attribute_align_arg win32thread_worker(void *arg)
|
||||
{
|
||||
pthread_t *h = arg;
|
||||
h->ret = h->func(h->arg);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_unused int pthread_create(pthread_t *thread, const void *unused_attr,
|
||||
void *(*start_routine)(void*), void *arg)
|
||||
{
|
||||
thread->func = start_routine;
|
||||
thread->arg = arg;
|
||||
thread->handle = (void*)_beginthreadex(NULL, 0, win32thread_worker, thread,
|
||||
0, NULL);
|
||||
return !thread->handle;
|
||||
}
|
||||
|
||||
static av_unused void pthread_join(pthread_t thread, void **value_ptr)
|
||||
{
|
||||
DWORD ret = WaitForSingleObject(thread.handle, INFINITE);
|
||||
if (ret != WAIT_OBJECT_0)
|
||||
return;
|
||||
if (value_ptr)
|
||||
*value_ptr = thread.ret;
|
||||
CloseHandle(thread.handle);
|
||||
}
|
||||
|
||||
static inline int pthread_mutex_init(pthread_mutex_t *m, void* attr)
|
||||
{
|
||||
InitializeCriticalSection(m);
|
||||
return 0;
|
||||
}
|
||||
static inline int pthread_mutex_destroy(pthread_mutex_t *m)
|
||||
{
|
||||
DeleteCriticalSection(m);
|
||||
return 0;
|
||||
}
|
||||
static inline int pthread_mutex_lock(pthread_mutex_t *m)
|
||||
{
|
||||
EnterCriticalSection(m);
|
||||
return 0;
|
||||
}
|
||||
static inline int pthread_mutex_unlock(pthread_mutex_t *m)
|
||||
{
|
||||
LeaveCriticalSection(m);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#if _WIN32_WINNT >= 0x0600
|
||||
static inline int pthread_cond_init(pthread_cond_t *cond, const void *unused_attr)
|
||||
{
|
||||
InitializeConditionVariable(cond);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* native condition variables do not destroy */
|
||||
static inline void pthread_cond_destroy(pthread_cond_t *cond)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
static inline void pthread_cond_broadcast(pthread_cond_t *cond)
|
||||
{
|
||||
WakeAllConditionVariable(cond);
|
||||
}
|
||||
|
||||
static inline int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
|
||||
{
|
||||
SleepConditionVariableCS(cond, mutex, INFINITE);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline void pthread_cond_signal(pthread_cond_t *cond)
|
||||
{
|
||||
WakeConditionVariable(cond);
|
||||
}
|
||||
|
||||
#else // _WIN32_WINNT < 0x0600
|
||||
/* for pre-Windows 6.0 platforms we need to define and use our own condition
|
||||
* variable and api */
|
||||
typedef struct win32_cond_t {
|
||||
pthread_mutex_t mtx_broadcast;
|
||||
pthread_mutex_t mtx_waiter_count;
|
||||
volatile int waiter_count;
|
||||
HANDLE semaphore;
|
||||
HANDLE waiters_done;
|
||||
volatile int is_broadcast;
|
||||
} win32_cond_t;
|
||||
|
||||
/* function pointers to conditional variable API on windows 6.0+ kernels */
|
||||
static void (WINAPI *cond_broadcast)(pthread_cond_t *cond);
|
||||
static void (WINAPI *cond_init)(pthread_cond_t *cond);
|
||||
static void (WINAPI *cond_signal)(pthread_cond_t *cond);
|
||||
static BOOL (WINAPI *cond_wait)(pthread_cond_t *cond, pthread_mutex_t *mutex,
|
||||
DWORD milliseconds);
|
||||
|
||||
static av_unused int pthread_cond_init(pthread_cond_t *cond, const void *unused_attr)
|
||||
{
|
||||
win32_cond_t *win32_cond = NULL;
|
||||
if (cond_init) {
|
||||
cond_init(cond);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* non native condition variables */
|
||||
win32_cond = av_mallocz(sizeof(win32_cond_t));
|
||||
if (!win32_cond)
|
||||
return ENOMEM;
|
||||
cond->Ptr = win32_cond;
|
||||
win32_cond->semaphore = CreateSemaphore(NULL, 0, 0x7fffffff, NULL);
|
||||
if (!win32_cond->semaphore)
|
||||
return ENOMEM;
|
||||
win32_cond->waiters_done = CreateEvent(NULL, TRUE, FALSE, NULL);
|
||||
if (!win32_cond->waiters_done)
|
||||
return ENOMEM;
|
||||
|
||||
pthread_mutex_init(&win32_cond->mtx_waiter_count, NULL);
|
||||
pthread_mutex_init(&win32_cond->mtx_broadcast, NULL);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static av_unused void pthread_cond_destroy(pthread_cond_t *cond)
|
||||
{
|
||||
win32_cond_t *win32_cond = cond->Ptr;
|
||||
/* native condition variables do not destroy */
|
||||
if (cond_init)
|
||||
return;
|
||||
|
||||
/* non native condition variables */
|
||||
CloseHandle(win32_cond->semaphore);
|
||||
CloseHandle(win32_cond->waiters_done);
|
||||
pthread_mutex_destroy(&win32_cond->mtx_waiter_count);
|
||||
pthread_mutex_destroy(&win32_cond->mtx_broadcast);
|
||||
av_freep(&win32_cond);
|
||||
cond->Ptr = NULL;
|
||||
}
|
||||
|
||||
static av_unused void pthread_cond_broadcast(pthread_cond_t *cond)
|
||||
{
|
||||
win32_cond_t *win32_cond = cond->Ptr;
|
||||
int have_waiter;
|
||||
|
||||
if (cond_broadcast) {
|
||||
cond_broadcast(cond);
|
||||
return;
|
||||
}
|
||||
|
||||
/* non native condition variables */
|
||||
pthread_mutex_lock(&win32_cond->mtx_broadcast);
|
||||
pthread_mutex_lock(&win32_cond->mtx_waiter_count);
|
||||
have_waiter = 0;
|
||||
|
||||
if (win32_cond->waiter_count) {
|
||||
win32_cond->is_broadcast = 1;
|
||||
have_waiter = 1;
|
||||
}
|
||||
|
||||
if (have_waiter) {
|
||||
ReleaseSemaphore(win32_cond->semaphore, win32_cond->waiter_count, NULL);
|
||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
||||
WaitForSingleObject(win32_cond->waiters_done, INFINITE);
|
||||
ResetEvent(win32_cond->waiters_done);
|
||||
win32_cond->is_broadcast = 0;
|
||||
} else
|
||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
||||
pthread_mutex_unlock(&win32_cond->mtx_broadcast);
|
||||
}
|
||||
|
||||
static av_unused int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
|
||||
{
|
||||
win32_cond_t *win32_cond = cond->Ptr;
|
||||
int last_waiter;
|
||||
if (cond_wait) {
|
||||
cond_wait(cond, mutex, INFINITE);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* non native condition variables */
|
||||
pthread_mutex_lock(&win32_cond->mtx_broadcast);
|
||||
pthread_mutex_lock(&win32_cond->mtx_waiter_count);
|
||||
win32_cond->waiter_count++;
|
||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
||||
pthread_mutex_unlock(&win32_cond->mtx_broadcast);
|
||||
|
||||
// unlock the external mutex
|
||||
pthread_mutex_unlock(mutex);
|
||||
WaitForSingleObject(win32_cond->semaphore, INFINITE);
|
||||
|
||||
pthread_mutex_lock(&win32_cond->mtx_waiter_count);
|
||||
win32_cond->waiter_count--;
|
||||
last_waiter = !win32_cond->waiter_count || !win32_cond->is_broadcast;
|
||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
||||
|
||||
if (last_waiter)
|
||||
SetEvent(win32_cond->waiters_done);
|
||||
|
||||
// lock the external mutex
|
||||
return pthread_mutex_lock(mutex);
|
||||
}
|
||||
|
||||
static av_unused void pthread_cond_signal(pthread_cond_t *cond)
|
||||
{
|
||||
win32_cond_t *win32_cond = cond->Ptr;
|
||||
int have_waiter;
|
||||
if (cond_signal) {
|
||||
cond_signal(cond);
|
||||
return;
|
||||
}
|
||||
|
||||
pthread_mutex_lock(&win32_cond->mtx_broadcast);
|
||||
|
||||
/* non-native condition variables */
|
||||
pthread_mutex_lock(&win32_cond->mtx_waiter_count);
|
||||
have_waiter = win32_cond->waiter_count;
|
||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
||||
|
||||
if (have_waiter) {
|
||||
ReleaseSemaphore(win32_cond->semaphore, 1, NULL);
|
||||
WaitForSingleObject(win32_cond->waiters_done, INFINITE);
|
||||
ResetEvent(win32_cond->waiters_done);
|
||||
}
|
||||
|
||||
pthread_mutex_unlock(&win32_cond->mtx_broadcast);
|
||||
}
|
||||
#endif
|
||||
|
||||
static av_unused void w32thread_init(void)
|
||||
{
|
||||
#if _WIN32_WINNT < 0x0600
|
||||
HANDLE kernel_dll = GetModuleHandle(TEXT("kernel32.dll"));
|
||||
/* if one is available, then they should all be available */
|
||||
cond_init =
|
||||
(void*)GetProcAddress(kernel_dll, "InitializeConditionVariable");
|
||||
cond_broadcast =
|
||||
(void*)GetProcAddress(kernel_dll, "WakeAllConditionVariable");
|
||||
cond_signal =
|
||||
(void*)GetProcAddress(kernel_dll, "WakeConditionVariable");
|
||||
cond_wait =
|
||||
(void*)GetProcAddress(kernel_dll, "SleepConditionVariableCS");
|
||||
#endif
|
||||
|
||||
}
|
||||
|
||||
#endif /* FFMPEG_COMPAT_W32PTHREADS_H */
|
||||
@@ -1,132 +0,0 @@
|
||||
#!/bin/sh
|
||||
|
||||
# Copyright (c) 2013, Derek Buitenhuis
|
||||
#
|
||||
# Permission to use, copy, modify, and/or distribute this software for any
|
||||
# purpose with or without fee is hereby granted, provided that the above
|
||||
# copyright notice and this permission notice appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
# mktemp isn't POSIX, so supply an implementation
|
||||
mktemp() {
|
||||
echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
|
||||
}
|
||||
|
||||
if [ $# -lt 2 ]; then
|
||||
echo "Usage: makedef <version_script> <objects>" >&2
|
||||
exit 0
|
||||
fi
|
||||
|
||||
vscript=$1
|
||||
shift
|
||||
|
||||
if [ ! -f "$vscript" ]; then
|
||||
echo "Version script does not exist" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
for object in "$@"; do
|
||||
if [ ! -f "$object" ]; then
|
||||
echo "Object does not exist: ${object}" >&2
|
||||
exit 1
|
||||
fi
|
||||
done
|
||||
|
||||
# Create a lib temporarily to dump symbols from.
|
||||
# It's just much easier to do it this way
|
||||
libname=$(mktemp -u "library").lib
|
||||
|
||||
trap 'rm -f -- $libname' EXIT
|
||||
|
||||
lib -out:${libname} $@ >/dev/null
|
||||
if [ $? != 0 ]; then
|
||||
echo "Could not create temporary library." >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
IFS='
|
||||
'
|
||||
|
||||
# Determine if we're building for x86 or x86_64 and
|
||||
# set the symbol prefix accordingly.
|
||||
prefix=""
|
||||
arch=$(dumpbin -headers ${libname} |
|
||||
tr '\t' ' ' |
|
||||
grep '^ \+.\+machine \+(.\+)' |
|
||||
head -1 |
|
||||
sed -e 's/^ \{1,\}.\{1,\} \{1,\}machine \{1,\}(\(...\)).*/\1/')
|
||||
|
||||
if [ "${arch}" = "x86" ]; then
|
||||
prefix="_"
|
||||
else
|
||||
if [ "${arch}" != "ARM" ] && [ "${arch}" != "x64" ]; then
|
||||
echo "Unknown machine type." >&2
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
|
||||
started=0
|
||||
regex="none"
|
||||
|
||||
for line in $(cat ${vscript} | tr '\t' ' '); do
|
||||
# We only care about global symbols
|
||||
echo "${line}" | grep -q '^ \+global:'
|
||||
if [ $? = 0 ]; then
|
||||
started=1
|
||||
line=$(echo "${line}" | sed -e 's/^ \{1,\}global: *//')
|
||||
else
|
||||
echo "${line}" | grep -q '^ \+local:'
|
||||
if [ $? = 0 ]; then
|
||||
started=0
|
||||
fi
|
||||
fi
|
||||
|
||||
if [ ${started} = 0 ]; then
|
||||
continue
|
||||
fi
|
||||
|
||||
# Handle multiple symbols on one line
|
||||
IFS=';'
|
||||
|
||||
# Work around stupid expansion to filenames
|
||||
line=$(echo "${line}" | sed -e 's/\*/.\\+/g')
|
||||
for exp in ${line}; do
|
||||
# Remove leading and trailing whitespace
|
||||
exp=$(echo "${exp}" | sed -e 's/^ *//' -e 's/ *$//')
|
||||
|
||||
if [ "${regex}" = "none" ]; then
|
||||
regex="${exp}"
|
||||
else
|
||||
regex="${regex};${exp}"
|
||||
fi
|
||||
done
|
||||
|
||||
IFS='
|
||||
'
|
||||
done
|
||||
|
||||
dump=$(dumpbin -linkermember:1 ${libname})
|
||||
|
||||
rm ${libname}
|
||||
|
||||
IFS=';'
|
||||
list=""
|
||||
for exp in ${regex}; do
|
||||
list="${list}"'
|
||||
'$(echo "${dump}" |
|
||||
sed -e '/public symbols/,$!d' -e '/^ \{1,\}Summary/,$d' -e "s/ \{1,\}${prefix}/ /" -e 's/ \{1,\}/ /g' |
|
||||
tail -n +2 |
|
||||
cut -d' ' -f3 |
|
||||
grep "^${exp}" |
|
||||
sed -e 's/^/ /')
|
||||
done
|
||||
|
||||
echo "EXPORTS"
|
||||
echo "${list}" | sort | uniq | tail -n +2
|
||||
1803
doc/APIchanges
1803
doc/APIchanges
File diff suppressed because it is too large
Load Diff
182
doc/Makefile
182
doc/Makefile
@@ -1,182 +0,0 @@
|
||||
LIBRARIES-$(CONFIG_AVUTIL) += libavutil
|
||||
LIBRARIES-$(CONFIG_SWSCALE) += libswscale
|
||||
LIBRARIES-$(CONFIG_SWRESAMPLE) += libswresample
|
||||
LIBRARIES-$(CONFIG_AVCODEC) += libavcodec
|
||||
LIBRARIES-$(CONFIG_AVFORMAT) += libavformat
|
||||
LIBRARIES-$(CONFIG_AVDEVICE) += libavdevice
|
||||
LIBRARIES-$(CONFIG_AVFILTER) += libavfilter
|
||||
|
||||
COMPONENTS-$(CONFIG_AVUTIL) += ffmpeg-utils
|
||||
COMPONENTS-$(CONFIG_SWSCALE) += ffmpeg-scaler
|
||||
COMPONENTS-$(CONFIG_SWRESAMPLE) += ffmpeg-resampler
|
||||
COMPONENTS-$(CONFIG_AVCODEC) += ffmpeg-codecs ffmpeg-bitstream-filters
|
||||
COMPONENTS-$(CONFIG_AVFORMAT) += ffmpeg-formats ffmpeg-protocols
|
||||
COMPONENTS-$(CONFIG_AVDEVICE) += ffmpeg-devices
|
||||
COMPONENTS-$(CONFIG_AVFILTER) += ffmpeg-filters
|
||||
|
||||
MANPAGES1 = $(AVPROGS-yes:%=doc/%.1) $(AVPROGS-yes:%=doc/%-all.1) $(COMPONENTS-yes:%=doc/%.1)
|
||||
MANPAGES3 = $(LIBRARIES-yes:%=doc/%.3)
|
||||
MANPAGES = $(MANPAGES1) $(MANPAGES3)
|
||||
PODPAGES = $(AVPROGS-yes:%=doc/%.pod) $(AVPROGS-yes:%=doc/%-all.pod) $(COMPONENTS-yes:%=doc/%.pod) $(LIBRARIES-yes:%=doc/%.pod)
|
||||
HTMLPAGES = $(AVPROGS-yes:%=doc/%.html) $(AVPROGS-yes:%=doc/%-all.html) $(COMPONENTS-yes:%=doc/%.html) $(LIBRARIES-yes:%=doc/%.html) \
|
||||
doc/developer.html \
|
||||
doc/faq.html \
|
||||
doc/fate.html \
|
||||
doc/general.html \
|
||||
doc/git-howto.html \
|
||||
doc/nut.html \
|
||||
doc/platform.html \
|
||||
|
||||
TXTPAGES = doc/fate.txt \
|
||||
|
||||
|
||||
DOCS-$(CONFIG_HTMLPAGES) += $(HTMLPAGES)
|
||||
DOCS-$(CONFIG_PODPAGES) += $(PODPAGES)
|
||||
DOCS-$(CONFIG_MANPAGES) += $(MANPAGES)
|
||||
DOCS-$(CONFIG_TXTPAGES) += $(TXTPAGES)
|
||||
DOCS = $(DOCS-yes)
|
||||
|
||||
DOC_EXAMPLES-$(CONFIG_AVIO_READING_EXAMPLE) += avio_reading
|
||||
DOC_EXAMPLES-$(CONFIG_AVCODEC_EXAMPLE) += avcodec
|
||||
DOC_EXAMPLES-$(CONFIG_DECODING_ENCODING_EXAMPLE) += decoding_encoding
|
||||
DOC_EXAMPLES-$(CONFIG_DEMUXING_DECODING_EXAMPLE) += demuxing_decoding
|
||||
DOC_EXAMPLES-$(CONFIG_EXTRACT_MVS_EXAMPLE) += extract_mvs
|
||||
DOC_EXAMPLES-$(CONFIG_FILTER_AUDIO_EXAMPLE) += filter_audio
|
||||
DOC_EXAMPLES-$(CONFIG_FILTERING_AUDIO_EXAMPLE) += filtering_audio
|
||||
DOC_EXAMPLES-$(CONFIG_FILTERING_VIDEO_EXAMPLE) += filtering_video
|
||||
DOC_EXAMPLES-$(CONFIG_METADATA_EXAMPLE) += metadata
|
||||
DOC_EXAMPLES-$(CONFIG_MUXING_EXAMPLE) += muxing
|
||||
DOC_EXAMPLES-$(CONFIG_REMUXING_EXAMPLE) += remuxing
|
||||
DOC_EXAMPLES-$(CONFIG_RESAMPLING_AUDIO_EXAMPLE) += resampling_audio
|
||||
DOC_EXAMPLES-$(CONFIG_SCALING_VIDEO_EXAMPLE) += scaling_video
|
||||
DOC_EXAMPLES-$(CONFIG_TRANSCODE_AAC_EXAMPLE) += transcode_aac
|
||||
DOC_EXAMPLES-$(CONFIG_TRANSCODING_EXAMPLE) += transcoding
|
||||
ALL_DOC_EXAMPLES_LIST = $(DOC_EXAMPLES-) $(DOC_EXAMPLES-yes)
|
||||
|
||||
DOC_EXAMPLES := $(DOC_EXAMPLES-yes:%=doc/examples/%$(PROGSSUF)$(EXESUF))
|
||||
ALL_DOC_EXAMPLES := $(ALL_DOC_EXAMPLES_LIST:%=doc/examples/%$(PROGSSUF)$(EXESUF))
|
||||
ALL_DOC_EXAMPLES_G := $(ALL_DOC_EXAMPLES_LIST:%=doc/examples/%$(PROGSSUF)_g$(EXESUF))
|
||||
PROGS += $(DOC_EXAMPLES)
|
||||
|
||||
all-$(CONFIG_DOC): doc
|
||||
|
||||
doc: documentation
|
||||
|
||||
apidoc: doc/doxy/html
|
||||
documentation: $(DOCS)
|
||||
|
||||
examples: $(DOC_EXAMPLES)
|
||||
|
||||
TEXIDEP = perl $(SRC_PATH)/doc/texidep.pl $(SRC_PATH) $< $@ >$(@:%=%.d)
|
||||
|
||||
doc/%.txt: TAG = TXT
|
||||
doc/%.txt: doc/%.texi
|
||||
$(Q)$(TEXIDEP)
|
||||
$(M)makeinfo --force --no-headers -o $@ $< 2>/dev/null
|
||||
|
||||
GENTEXI = format codec
|
||||
GENTEXI := $(GENTEXI:%=doc/avoptions_%.texi)
|
||||
|
||||
$(GENTEXI): TAG = GENTEXI
|
||||
$(GENTEXI): doc/avoptions_%.texi: doc/print_options$(HOSTEXESUF)
|
||||
$(M)doc/print_options $* > $@
|
||||
|
||||
doc/%.html: TAG = HTML
|
||||
doc/%-all.html: TAG = HTML
|
||||
|
||||
ifdef HAVE_MAKEINFO_HTML
|
||||
doc/%.html: doc/%.texi $(SRC_PATH)/doc/t2h.pm $(GENTEXI)
|
||||
$(Q)$(TEXIDEP)
|
||||
$(M)makeinfo --html -I doc --no-split -D config-not-all --init-file=$(SRC_PATH)/doc/t2h.pm --output $@ $<
|
||||
|
||||
doc/%-all.html: doc/%.texi $(SRC_PATH)/doc/t2h.pm $(GENTEXI)
|
||||
$(Q)$(TEXIDEP)
|
||||
$(M)makeinfo --html -I doc --no-split -D config-all --init-file=$(SRC_PATH)/doc/t2h.pm --output $@ $<
|
||||
else
|
||||
doc/%.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
|
||||
$(Q)$(TEXIDEP)
|
||||
$(M)texi2html -I doc -monolithic --D=config-not-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
|
||||
|
||||
doc/%-all.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
|
||||
$(Q)$(TEXIDEP)
|
||||
$(M)texi2html -I doc -monolithic --D=config-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
|
||||
endif
|
||||
|
||||
doc/%.pod: TAG = POD
|
||||
doc/%.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
|
||||
$(Q)$(TEXIDEP)
|
||||
$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Dconfig-not-all=yes -Idoc $< $@
|
||||
|
||||
doc/%-all.pod: TAG = POD
|
||||
doc/%-all.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
|
||||
$(Q)$(TEXIDEP)
|
||||
$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Dconfig-all=yes -Idoc $< $@
|
||||
|
||||
doc/%.1 doc/%.3: TAG = MAN
|
||||
doc/%.1: doc/%.pod $(GENTEXI)
|
||||
$(M)pod2man --section=1 --center=" " --release=" " $< > $@
|
||||
doc/%.3: doc/%.pod $(GENTEXI)
|
||||
$(M)pod2man --section=3 --center=" " --release=" " $< > $@
|
||||
|
||||
$(DOCS) doc/doxy/html: | doc/
|
||||
$(DOC_EXAMPLES:%$(EXESUF)=%.o): | doc/examples
|
||||
OBJDIRS += doc/examples
|
||||
|
||||
DOXY_INPUT = $(addprefix $(SRC_PATH)/, $(INSTHEADERS) $(DOC_EXAMPLES:%$(EXESUF)=%.c) $(LIB_EXAMPLES:%$(EXESUF)=%.c))
|
||||
|
||||
doc/doxy/html: TAG = DOXY
|
||||
doc/doxy/html: $(SRC_PATH)/doc/Doxyfile $(SRC_PATH)/doc/doxy-wrapper.sh $(DOXY_INPUT)
|
||||
$(M)$(SRC_PATH)/doc/doxy-wrapper.sh $(SRC_PATH) $< $(DOXYGEN) $(DOXY_INPUT)
|
||||
|
||||
install-doc: install-html install-man
|
||||
|
||||
install-html:
|
||||
|
||||
install-man:
|
||||
|
||||
ifdef CONFIG_HTMLPAGES
|
||||
install-progs-$(CONFIG_DOC): install-html
|
||||
|
||||
install-html: $(HTMLPAGES)
|
||||
$(Q)mkdir -p "$(DOCDIR)"
|
||||
$(INSTALL) -m 644 $(HTMLPAGES) "$(DOCDIR)"
|
||||
endif
|
||||
|
||||
ifdef CONFIG_MANPAGES
|
||||
install-progs-$(CONFIG_DOC): install-man
|
||||
|
||||
install-man: $(MANPAGES)
|
||||
$(Q)mkdir -p "$(MANDIR)/man1"
|
||||
$(INSTALL) -m 644 $(MANPAGES1) "$(MANDIR)/man1"
|
||||
$(Q)mkdir -p "$(MANDIR)/man3"
|
||||
$(INSTALL) -m 644 $(MANPAGES3) "$(MANDIR)/man3"
|
||||
endif
|
||||
|
||||
uninstall: uninstall-doc
|
||||
|
||||
uninstall-doc: uninstall-html uninstall-man
|
||||
|
||||
uninstall-html:
|
||||
$(RM) -r "$(DOCDIR)"
|
||||
|
||||
uninstall-man:
|
||||
$(RM) $(addprefix "$(MANDIR)/man1/",$(AVPROGS-yes:%=%.1) $(AVPROGS-yes:%=%-all.1) $(COMPONENTS-yes:%=%.1))
|
||||
$(RM) $(addprefix "$(MANDIR)/man3/",$(LIBRARIES-yes:%=%.3))
|
||||
|
||||
clean:: docclean
|
||||
|
||||
distclean:: docclean
|
||||
$(RM) doc/config.texi
|
||||
|
||||
examplesclean:
|
||||
$(RM) $(ALL_DOC_EXAMPLES) $(ALL_DOC_EXAMPLES_G)
|
||||
$(RM) $(CLEANSUFFIXES:%=doc/examples/%)
|
||||
|
||||
docclean: examplesclean
|
||||
$(RM) $(CLEANSUFFIXES:%=doc/%)
|
||||
$(RM) $(TXTPAGES) doc/*.html doc/*.pod doc/*.1 doc/*.3 doc/avoptions_*.texi
|
||||
$(RM) -r doc/doxy/html
|
||||
|
||||
-include $(wildcard $(DOCS:%=%.d))
|
||||
|
||||
.PHONY: apidoc doc documentation
|
||||
65
doc/RELEASE_NOTES
Normal file
65
doc/RELEASE_NOTES
Normal file
@@ -0,0 +1,65 @@
|
||||
Release Notes
|
||||
=============
|
||||
|
||||
* 0.8 "Love" June, 2011
|
||||
* 0.7.1 "Peace" June, 2011 (identical to 0.8 but using 0.6 ABI/API)
|
||||
|
||||
|
||||
General notes
|
||||
-------------
|
||||
|
||||
This release enables frame-based multithreaded decoding for a number of codecs,
|
||||
including theora, huffyuv, VP8, H.263, mpeg4 and H.264. Additionally, there has
|
||||
been a major cleanup of
|
||||
both internal and external APIs. For this reason, the major versions of all
|
||||
libraries except libpostproc have been bumped. This means that 0.8 can be installed
|
||||
side-by-side with previous releases, on the other hand applications need to be
|
||||
recompiled to use 0.8.
|
||||
|
||||
Other important changes are more than 200 bugfixes, known regressions were fixed
|
||||
w.r.t 0.5 and 0.6, additions of decoders including, but not limited to,
|
||||
AMR-WB, single stream LATM/LOAS, G.722 ADPCM, a native VP8 decoder
|
||||
and HE-AACv2. Additionally, many new de/muxers such as WebM in Matroska, Apple
|
||||
HTTP Live Streaming, SAP, IEC 61937 (S/PDIF) have been added.
|
||||
|
||||
See the Changelog file for a list of significant changes.
|
||||
|
||||
Bugreports against FFmpeg git master or the most recent FFmpeg release are
|
||||
accepted. If you are experiencing issues with any formally released version of
|
||||
FFmpeg, please try git master to check if the issue still exists. If it does,
|
||||
make your report against the development code following the usual bug reporting
|
||||
guidelines.
|
||||
|
||||
Note, if you have difficulty building for mingw, try --disable-outdev=sdl
|
||||
|
||||
|
||||
API changes
|
||||
-----------
|
||||
|
||||
Please see git log of the public headers or the file doc/APIchanges for
|
||||
programmer-centric information. Note that some long-time deprecated APIs have
|
||||
been removed. Also, a number of additional APIs have been deprecated and might
|
||||
be removed in the next release.
|
||||
|
||||
|
||||
Other notable changes
|
||||
---------------------
|
||||
|
||||
- high quality dithering in swscale to fix banding issues
|
||||
- ffmpeg is now interactive and various information can be turned on/off while its running
|
||||
- resolution changing support in ffmpeg
|
||||
- sdl output device
|
||||
- optimizations in libavfilter that make it much faster
|
||||
- split, buffer, select, lut, negate filters amongth others
|
||||
- more than 50 new video filters from mplayers libmpcodecs
|
||||
- many ARM NEON optimizations
|
||||
- nonfree libfaad support for AAC decoding removed
|
||||
- 4:4:4 H.264 decoding
|
||||
- 9/10bit H.264 decoding
|
||||
- Win64 Assembler support
|
||||
- native MMSH/MMST support
|
||||
- Windows TV demuxing
|
||||
- native AMR-WB decoding
|
||||
- native GSM-MS decoding
|
||||
- SMPTE 302M decoding
|
||||
- AVS encoding
|
||||
82
doc/TODO
Normal file
82
doc/TODO
Normal file
@@ -0,0 +1,82 @@
|
||||
ffmpeg TODO list:
|
||||
----------------
|
||||
|
||||
Fabrice's TODO list: (unordered)
|
||||
-------------------
|
||||
Short term:
|
||||
|
||||
- use AVFMTCTX_DISCARD_PKT in ffplay so that DV has a chance to work
|
||||
- add RTSP regression test (both client and server)
|
||||
- make ffserver allocate AVFormatContext
|
||||
- clean up (incompatible change, for 0.5.0):
|
||||
* AVStream -> AVComponent
|
||||
* AVFormatContext -> AVInputStream/AVOutputStream
|
||||
* suppress rate_emu from AVCodecContext
|
||||
- add new float/integer audio filterting and conversion : suppress
|
||||
CODEC_ID_PCM_xxc and use CODEC_ID_RAWAUDIO.
|
||||
- fix telecine and frame rate conversion
|
||||
|
||||
Long term (ask me if you want to help):
|
||||
|
||||
- commit new imgconvert API and new PIX_FMT_xxx alpha formats
|
||||
- commit new LGPL'ed float and integer-only AC3 decoder
|
||||
- add WMA integer-only decoder
|
||||
- add new MPEG4-AAC audio decoder (both integer-only and float version)
|
||||
|
||||
Michael's TODO list: (unordered) (if anyone wanna help with sth, just ask)
|
||||
-------------------
|
||||
- optimize H264 CABAC
|
||||
- more optimizations
|
||||
- simper rate control
|
||||
|
||||
Philip'a TODO list: (alphabetically ordered) (please help)
|
||||
------------------
|
||||
- Add a multi-ffm filetype so that feeds can be recorded into multiple files rather
|
||||
than one big file.
|
||||
- Authenticated users support -- where the authentication is in the URL
|
||||
- Change ASF files so that the embedded timestamp in the frames is right rather
|
||||
than being an offset from the start of the stream
|
||||
- Make ffm files more resilient to changes in the codec structures so that you
|
||||
can play old ffm files.
|
||||
|
||||
Baptiste's TODO list:
|
||||
-----------------
|
||||
- mov edit list support (AVEditList)
|
||||
- YUV 10 bit per component support "2vuy"
|
||||
- mxf muxer
|
||||
- mpeg2 non linear quantizer
|
||||
|
||||
unassigned TODO: (unordered)
|
||||
---------------
|
||||
- use AVFrame for audio codecs too
|
||||
- rework aviobuf.c buffering strategy and fix url_fskip
|
||||
- generate optimal huffman tables for mjpeg encoding
|
||||
- fix ffserver regression tests
|
||||
- support xvids motion estimation
|
||||
- support x264s motion estimation
|
||||
- support x264s rate control
|
||||
- SNOW: non translational motion compensation
|
||||
- SNOW: more optimal quantization
|
||||
- SNOW: 4x4 block support
|
||||
- SNOW: 1/8 pel motion compensation support
|
||||
- SNOW: iterative motion estimation based on subsampled images
|
||||
- SNOW: try B frames and MCTF and see how their PSNR/bitrate/complexity behaves
|
||||
- SNOW: try to use the wavelet transformed MC-ed reference frame as context for the entropy coder
|
||||
- SNOW: think about/analyize how to make snow use multiple cpus/threads
|
||||
- SNOW: finish spec
|
||||
- FLAC: lossy encoding (viterbi and naive scalar quantization)
|
||||
- libavfilter
|
||||
- JPEG2000 decoder & encoder
|
||||
- MPEG4 GMC encoding support
|
||||
- macroblock based pixel format (better cache locality, somewhat complex, one paper claimed it faster for high res)
|
||||
- regression tests for codecs which do not have an encoder (I+P-frame bitstream in the 'master' branch)
|
||||
- add support for using mplayers video filters to ffmpeg
|
||||
- H264 encoder
|
||||
- per MB ratecontrol (so VCD and such do work better)
|
||||
- write a script which iteratively changes all functions between always_inline and noinline and benchmarks the result to find the best set of inlined functions
|
||||
- convert all the non SIMD asm into small asm vs. C testcases and submit them to the gcc devels so they can improve gcc
|
||||
- generic audio mixing API
|
||||
- extract PES packetizer from PS muxer and use it for new TS muxer
|
||||
- implement automatic AVBistreamFilter activation
|
||||
- make cabac encoder use bytestream (see http://trac.videolan.org/x264/changeset/?format=diff&new=651)
|
||||
- merge imdct and windowing, the current code does considerable amounts of redundant work
|
||||
@@ -1,11 +0,0 @@
|
||||
@chapter Authors
|
||||
|
||||
The FFmpeg developers.
|
||||
|
||||
For details about the authorship, see the Git history of the project
|
||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
||||
@command{git log} in the FFmpeg source directory, or browsing the
|
||||
online repository at @url{http://source.ffmpeg.org}.
|
||||
|
||||
Maintainers for the specific components are listed in the file
|
||||
@file{MAINTAINERS} in the source code tree.
|
||||
36
doc/avutil.txt
Normal file
36
doc/avutil.txt
Normal file
@@ -0,0 +1,36 @@
|
||||
AVUtil
|
||||
======
|
||||
libavutil is a small lightweight library of generally useful functions.
|
||||
It is not a library for code needed by both libavcodec and libavformat.
|
||||
|
||||
|
||||
Overview:
|
||||
=========
|
||||
adler32.c adler32 checksum
|
||||
aes.c AES encryption and decryption
|
||||
fifo.c resizeable first in first out buffer
|
||||
intfloat_readwrite.c portable reading and writing of floating point values
|
||||
log.c "printf" with context and level
|
||||
md5.c MD5 Message-Digest Algorithm
|
||||
rational.c code to perform exact calculations with rational numbers
|
||||
tree.c generic AVL tree
|
||||
crc.c generic CRC checksumming code
|
||||
integer.c 128bit integer math
|
||||
lls.c
|
||||
mathematics.c greatest common divisor, integer sqrt, integer log2, ...
|
||||
mem.c memory allocation routines with guaranteed alignment
|
||||
|
||||
Headers:
|
||||
bswap.h big/little/native-endian conversion code
|
||||
x86_cpu.h a few useful macros for unifying x86-64 and x86-32 code
|
||||
avutil.h
|
||||
common.h
|
||||
intreadwrite.h reading and writing of unaligned big/little/native-endian integers
|
||||
|
||||
|
||||
Goals:
|
||||
======
|
||||
* Modular (few interdependencies and the possibility of disabling individual parts during ./configure)
|
||||
* Small (source and object)
|
||||
* Efficient (low CPU and memory usage)
|
||||
* Useful (avoid useless features almost no one needs)
|
||||
@@ -13,88 +13,17 @@ bitstream filter using the option @code{--disable-bsf=BSF}.
|
||||
The option @code{-bsfs} of the ff* tools will display the list of
|
||||
all the supported bitstream filters included in your build.
|
||||
|
||||
The ff* tools have a -bsf option applied per stream, taking a
|
||||
comma-separated list of filters, whose parameters follow the filter
|
||||
name after a '='.
|
||||
|
||||
@example
|
||||
ffmpeg -i INPUT -c:v copy -bsf:v filter1[=opt1=str1/opt2=str2][,filter2] OUTPUT
|
||||
@end example
|
||||
|
||||
Below is a description of the currently available bitstream filters,
|
||||
with their parameters, if any.
|
||||
Below is a description of the currently available bitstream filters.
|
||||
|
||||
@section aac_adtstoasc
|
||||
|
||||
Convert MPEG-2/4 AAC ADTS to MPEG-4 Audio Specific Configuration
|
||||
bitstream filter.
|
||||
|
||||
This filter creates an MPEG-4 AudioSpecificConfig from an MPEG-2/4
|
||||
ADTS header and removes the ADTS header.
|
||||
|
||||
This is required for example when copying an AAC stream from a raw
|
||||
ADTS AAC container to a FLV or a MOV/MP4 file.
|
||||
|
||||
@section chomp
|
||||
|
||||
Remove zero padding at the end of a packet.
|
||||
|
||||
@section dump_extra
|
||||
|
||||
Add extradata to the beginning of the filtered packets.
|
||||
|
||||
The additional argument specifies which packets should be filtered.
|
||||
It accepts the values:
|
||||
@table @samp
|
||||
@item a
|
||||
add extradata to all key packets, but only if @var{local_header} is
|
||||
set in the @option{flags2} codec context field
|
||||
|
||||
@item k
|
||||
add extradata to all key packets
|
||||
|
||||
@item e
|
||||
add extradata to all packets
|
||||
@end table
|
||||
|
||||
If not specified it is assumed @samp{k}.
|
||||
|
||||
For example the following @command{ffmpeg} command forces a global
|
||||
header (thus disabling individual packet headers) in the H.264 packets
|
||||
generated by the @code{libx264} encoder, but corrects them by adding
|
||||
the header stored in extradata to the key packets:
|
||||
@example
|
||||
ffmpeg -i INPUT -map 0 -flags:v +global_header -c:v libx264 -bsf:v dump_extra out.ts
|
||||
@end example
|
||||
@section dump_extradata
|
||||
|
||||
@section h264_mp4toannexb
|
||||
|
||||
Convert an H.264 bitstream from length prefixed mode to start code
|
||||
prefixed mode (as defined in the Annex B of the ITU-T H.264
|
||||
specification).
|
||||
|
||||
This is required by some streaming formats, typically the MPEG-2
|
||||
transport stream format ("mpegts").
|
||||
|
||||
For example to remux an MP4 file containing an H.264 stream to mpegts
|
||||
format with @command{ffmpeg}, you can use the command:
|
||||
|
||||
@example
|
||||
ffmpeg -i INPUT.mp4 -codec copy -bsf:v h264_mp4toannexb OUTPUT.ts
|
||||
@end example
|
||||
|
||||
@section imxdump
|
||||
|
||||
Modifies the bitstream to fit in MOV and to be usable by the Final Cut
|
||||
Pro decoder. This filter only applies to the mpeg2video codec, and is
|
||||
likely not needed for Final Cut Pro 7 and newer with the appropriate
|
||||
@option{-tag:v}.
|
||||
|
||||
For example, to remux 30 MB/sec NTSC IMX to MOV:
|
||||
|
||||
@example
|
||||
ffmpeg -i input.mxf -c copy -bsf:v imxdump -tag:v mx3n output.mov
|
||||
@end example
|
||||
@section imx_dump_header
|
||||
|
||||
@section mjpeg2jpeg
|
||||
|
||||
@@ -105,7 +34,7 @@ JPEG image. The individual frames can be extracted without loss,
|
||||
e.g. by
|
||||
|
||||
@example
|
||||
ffmpeg -i ../some_mjpeg.avi -c:v copy frames_%d.jpg
|
||||
ffmpeg -i ../some_mjpeg.avi -vcodec copy frames_%d.jpg
|
||||
@end example
|
||||
|
||||
Unfortunately, these chunks are incomplete JPEG images, because
|
||||
@@ -128,33 +57,21 @@ stream (carrying the AVI1 header ID and lacking a DHT segment) to
|
||||
produce fully qualified JPEG images.
|
||||
|
||||
@example
|
||||
ffmpeg -i mjpeg-movie.avi -c:v copy -bsf:v mjpeg2jpeg frame_%d.jpg
|
||||
ffmpeg -i mjpeg-movie.avi -vcodec copy -vbsf mjpeg2jpeg frame_%d.jpg
|
||||
exiftran -i -9 frame*.jpg
|
||||
ffmpeg -i frame_%d.jpg -c:v copy rotated.avi
|
||||
ffmpeg -i frame_%d.jpg -vcodec copy rotated.avi
|
||||
@end example
|
||||
|
||||
@section mjpega_dump_header
|
||||
|
||||
@section movsub
|
||||
|
||||
@section mp3_header_compress
|
||||
|
||||
@section mp3_header_decompress
|
||||
|
||||
@section noise
|
||||
|
||||
Damages the contents of packets without damaging the container. Can be
|
||||
used for fuzzing or testing error resilience/concealment.
|
||||
|
||||
Parameters:
|
||||
A numeral string, whose value is related to how often output bytes will
|
||||
be modified. Therefore, values below or equal to 0 are forbidden, and
|
||||
the lower the more frequent bytes will be modified, with 1 meaning
|
||||
every byte is modified.
|
||||
|
||||
@example
|
||||
ffmpeg -i INPUT -c copy -bsf noise[=1] output.mkv
|
||||
@end example
|
||||
applies the modification to every byte.
|
||||
|
||||
@section remove_extra
|
||||
@section remove_extradata
|
||||
|
||||
@c man end BITSTREAM FILTERS
|
||||
|
||||
5
doc/bootstrap.min.css
vendored
5
doc/bootstrap.min.css
vendored
File diff suppressed because one or more lines are too long
@@ -25,9 +25,6 @@ fate-list
|
||||
install
|
||||
Install headers, libraries and programs.
|
||||
|
||||
examples
|
||||
Build all examples located in doc/examples.
|
||||
|
||||
libavformat/output-example
|
||||
Build the libavformat basic example.
|
||||
|
||||
@@ -37,9 +34,6 @@ libavcodec/api-example
|
||||
libswscale/swscale-test
|
||||
Build the swscale self-test (useful also as example).
|
||||
|
||||
config
|
||||
Reconfigure the project with current configuration.
|
||||
|
||||
|
||||
Useful standard make commands:
|
||||
make -t <target>
|
||||
|
||||
1141
doc/codecs.texi
1141
doc/codecs.texi
File diff suppressed because it is too large
Load Diff
@@ -14,7 +14,7 @@ You can disable all the decoders with the configure option
|
||||
with the options @code{--enable-decoder=@var{DECODER}} /
|
||||
@code{--disable-decoder=@var{DECODER}}.
|
||||
|
||||
The option @code{-decoders} of the ff* tools will display the list of
|
||||
The option @code{-codecs} of the ff* tools will display the list of
|
||||
enabled decoders.
|
||||
|
||||
@c man end DECODERS
|
||||
@@ -27,7 +27,7 @@ follows.
|
||||
|
||||
@section rawvideo
|
||||
|
||||
Raw video decoder.
|
||||
Rawvideo decoder.
|
||||
|
||||
This decoder decodes rawvideo streams.
|
||||
|
||||
@@ -48,198 +48,3 @@ top-field-first is assumed
|
||||
@end table
|
||||
|
||||
@c man end VIDEO DECODERS
|
||||
|
||||
@chapter Audio Decoders
|
||||
@c man begin AUDIO DECODERS
|
||||
|
||||
A description of some of the currently available audio decoders
|
||||
follows.
|
||||
|
||||
@section ac3
|
||||
|
||||
AC-3 audio decoder.
|
||||
|
||||
This decoder implements part of ATSC A/52:2010 and ETSI TS 102 366, as well as
|
||||
the undocumented RealAudio 3 (a.k.a. dnet).
|
||||
|
||||
@subsection AC-3 Decoder Options
|
||||
|
||||
@table @option
|
||||
|
||||
@item -drc_scale @var{value}
|
||||
Dynamic Range Scale Factor. The factor to apply to dynamic range values
|
||||
from the AC-3 stream. This factor is applied exponentially.
|
||||
There are 3 notable scale factor ranges:
|
||||
@table @option
|
||||
@item drc_scale == 0
|
||||
DRC disabled. Produces full range audio.
|
||||
@item 0 < drc_scale <= 1
|
||||
DRC enabled. Applies a fraction of the stream DRC value.
|
||||
Audio reproduction is between full range and full compression.
|
||||
@item drc_scale > 1
|
||||
DRC enabled. Applies drc_scale asymmetrically.
|
||||
Loud sounds are fully compressed. Soft sounds are enhanced.
|
||||
@end table
|
||||
|
||||
@end table
|
||||
|
||||
@section ffwavesynth
|
||||
|
||||
Internal wave synthetizer.
|
||||
|
||||
This decoder generates wave patterns according to predefined sequences. Its
|
||||
use is purely internal and the format of the data it accepts is not publicly
|
||||
documented.
|
||||
|
||||
@section libcelt
|
||||
|
||||
libcelt decoder wrapper.
|
||||
|
||||
libcelt allows libavcodec to decode the Xiph CELT ultra-low delay audio codec.
|
||||
Requires the presence of the libcelt headers and library during configuration.
|
||||
You need to explicitly configure the build with @code{--enable-libcelt}.
|
||||
|
||||
@section libgsm
|
||||
|
||||
libgsm decoder wrapper.
|
||||
|
||||
libgsm allows libavcodec to decode the GSM full rate audio codec. Requires
|
||||
the presence of the libgsm headers and library during configuration. You need
|
||||
to explicitly configure the build with @code{--enable-libgsm}.
|
||||
|
||||
This decoder supports both the ordinary GSM and the Microsoft variant.
|
||||
|
||||
@section libilbc
|
||||
|
||||
libilbc decoder wrapper.
|
||||
|
||||
libilbc allows libavcodec to decode the Internet Low Bitrate Codec (iLBC)
|
||||
audio codec. Requires the presence of the libilbc headers and library during
|
||||
configuration. You need to explicitly configure the build with
|
||||
@code{--enable-libilbc}.
|
||||
|
||||
@subsection Options
|
||||
|
||||
The following option is supported by the libilbc wrapper.
|
||||
|
||||
@table @option
|
||||
@item enhance
|
||||
|
||||
Enable the enhancement of the decoded audio when set to 1. The default
|
||||
value is 0 (disabled).
|
||||
|
||||
@end table
|
||||
|
||||
@section libopencore-amrnb
|
||||
|
||||
libopencore-amrnb decoder wrapper.
|
||||
|
||||
libopencore-amrnb allows libavcodec to decode the Adaptive Multi-Rate
|
||||
Narrowband audio codec. Using it requires the presence of the
|
||||
libopencore-amrnb headers and library during configuration. You need to
|
||||
explicitly configure the build with @code{--enable-libopencore-amrnb}.
|
||||
|
||||
An FFmpeg native decoder for AMR-NB exists, so users can decode AMR-NB
|
||||
without this library.
|
||||
|
||||
@section libopencore-amrwb
|
||||
|
||||
libopencore-amrwb decoder wrapper.
|
||||
|
||||
libopencore-amrwb allows libavcodec to decode the Adaptive Multi-Rate
|
||||
Wideband audio codec. Using it requires the presence of the
|
||||
libopencore-amrwb headers and library during configuration. You need to
|
||||
explicitly configure the build with @code{--enable-libopencore-amrwb}.
|
||||
|
||||
An FFmpeg native decoder for AMR-WB exists, so users can decode AMR-WB
|
||||
without this library.
|
||||
|
||||
@section libopus
|
||||
|
||||
libopus decoder wrapper.
|
||||
|
||||
libopus allows libavcodec to decode the Opus Interactive Audio Codec.
|
||||
Requires the presence of the libopus headers and library during
|
||||
configuration. You need to explicitly configure the build with
|
||||
@code{--enable-libopus}.
|
||||
|
||||
An FFmpeg native decoder for Opus exists, so users can decode Opus
|
||||
without this library.
|
||||
|
||||
@c man end AUDIO DECODERS
|
||||
|
||||
@chapter Subtitles Decoders
|
||||
@c man begin SUBTILES DECODERS
|
||||
|
||||
@section dvdsub
|
||||
|
||||
This codec decodes the bitmap subtitles used in DVDs; the same subtitles can
|
||||
also be found in VobSub file pairs and in some Matroska files.
|
||||
|
||||
@subsection Options
|
||||
|
||||
@table @option
|
||||
@item palette
|
||||
Specify the global palette used by the bitmaps. When stored in VobSub, the
|
||||
palette is normally specified in the index file; in Matroska, the palette is
|
||||
stored in the codec extra-data in the same format as in VobSub. In DVDs, the
|
||||
palette is stored in the IFO file, and therefore not available when reading
|
||||
from dumped VOB files.
|
||||
|
||||
The format for this option is a string containing 16 24-bits hexadecimal
|
||||
numbers (without 0x prefix) separated by comas, for example @code{0d00ee,
|
||||
ee450d, 101010, eaeaea, 0ce60b, ec14ed, ebff0b, 0d617a, 7b7b7b, d1d1d1,
|
||||
7b2a0e, 0d950c, 0f007b, cf0dec, cfa80c, 7c127b}.
|
||||
|
||||
@item ifo_palette
|
||||
Specify the IFO file from which the global palette is obtained.
|
||||
(experimental)
|
||||
|
||||
@item forced_subs_only
|
||||
Only decode subtitle entries marked as forced. Some titles have forced
|
||||
and non-forced subtitles in the same track. Setting this flag to @code{1}
|
||||
will only keep the forced subtitles. Default value is @code{0}.
|
||||
@end table
|
||||
|
||||
@section libzvbi-teletext
|
||||
|
||||
Libzvbi allows libavcodec to decode DVB teletext pages and DVB teletext
|
||||
subtitles. Requires the presence of the libzvbi headers and library during
|
||||
configuration. You need to explicitly configure the build with
|
||||
@code{--enable-libzvbi}.
|
||||
|
||||
@subsection Options
|
||||
|
||||
@table @option
|
||||
@item txt_page
|
||||
List of teletext page numbers to decode. You may use the special * string to
|
||||
match all pages. Pages that do not match the specified list are dropped.
|
||||
Default value is *.
|
||||
@item txt_chop_top
|
||||
Discards the top teletext line. Default value is 1.
|
||||
@item txt_format
|
||||
Specifies the format of the decoded subtitles. The teletext decoder is capable
|
||||
of decoding the teletext pages to bitmaps or to simple text, you should use
|
||||
"bitmap" for teletext pages, because certain graphics and colors cannot be
|
||||
expressed in simple text. You might use "text" for teletext based subtitles if
|
||||
your application can handle simple text based subtitles. Default value is
|
||||
bitmap.
|
||||
@item txt_left
|
||||
X offset of generated bitmaps, default is 0.
|
||||
@item txt_top
|
||||
Y offset of generated bitmaps, default is 0.
|
||||
@item txt_chop_spaces
|
||||
Chops leading and trailing spaces and removes empty lines from the generated
|
||||
text. This option is useful for teletext based subtitles where empty spaces may
|
||||
be present at the start or at the end of the lines or empty lines may be
|
||||
present between the subtitle lines because of double-sized teletext charactes.
|
||||
Default value is 1.
|
||||
@item txt_duration
|
||||
Sets the display duration of the decoded teletext pages or subtitles in
|
||||
miliseconds. Default value is 30000 which is 30 seconds.
|
||||
@item txt_transparent
|
||||
Force transparent background of the generated teletext bitmaps. Default value
|
||||
is 0 which means an opaque (black) background.
|
||||
@end table
|
||||
|
||||
@c man end SUBTILES DECODERS
|
||||
|
||||
165
doc/default.css
165
doc/default.css
@@ -1,165 +0,0 @@
|
||||
a.summary-letter {
|
||||
text-decoration: none;
|
||||
}
|
||||
|
||||
a {
|
||||
color: #2D6198;
|
||||
}
|
||||
|
||||
a:visited {
|
||||
color: #884488;
|
||||
}
|
||||
|
||||
#banner {
|
||||
background-color: white;
|
||||
position: relative;
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
#banner img {
|
||||
margin-bottom: 1px;
|
||||
margin-top: 5px;
|
||||
}
|
||||
|
||||
#body {
|
||||
margin-left: 1em;
|
||||
margin-right: 1em;
|
||||
}
|
||||
|
||||
body {
|
||||
background-color: #313131;
|
||||
margin: 0;
|
||||
text-align: justify;
|
||||
}
|
||||
|
||||
.center {
|
||||
margin-left: auto;
|
||||
margin-right: auto;
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
#container {
|
||||
background-color: white;
|
||||
color: #202020;
|
||||
margin-left: 1em;
|
||||
margin-right: 1em;
|
||||
}
|
||||
|
||||
#footer {
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
h1 a, h2 a, h3 a, h4 a {
|
||||
text-decoration: inherit;
|
||||
color: inherit;
|
||||
}
|
||||
|
||||
h1, h2, h3, h4 {
|
||||
padding-left: 0.4em;
|
||||
border-radius: 4px;
|
||||
padding-bottom: 0.25em;
|
||||
padding-top: 0.25em;
|
||||
border: 1px solid #6A996A;
|
||||
}
|
||||
|
||||
h1 {
|
||||
background-color: #7BB37B;
|
||||
color: #151515;
|
||||
font-size: 1.2em;
|
||||
padding-bottom: 0.3em;
|
||||
padding-top: 0.3em;
|
||||
}
|
||||
|
||||
h2 {
|
||||
color: #313131;
|
||||
font-size: 1.0em;
|
||||
background-color: #ABE3AB;
|
||||
}
|
||||
|
||||
h3 {
|
||||
color: #313131;
|
||||
font-size: 0.9em;
|
||||
margin-bottom: -6px;
|
||||
background-color: #BBF3BB;
|
||||
}
|
||||
|
||||
h4 {
|
||||
color: #313131;
|
||||
font-size: 0.8em;
|
||||
margin-bottom: -8px;
|
||||
background-color: #D1FDD1;
|
||||
}
|
||||
|
||||
img {
|
||||
border: 0;
|
||||
}
|
||||
|
||||
#navbar {
|
||||
background-color: #738073;
|
||||
border-bottom: 1px solid #5C665C;
|
||||
border-top: 1px solid #5C665C;
|
||||
margin-top: 12px;
|
||||
padding: 0.3em;
|
||||
position: relative;
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
#navbar a, #navbar_secondary a {
|
||||
color: white;
|
||||
padding: 0.3em;
|
||||
text-decoration: none;
|
||||
}
|
||||
|
||||
#navbar a:hover, #navbar_secondary a:hover {
|
||||
background-color: #313131;
|
||||
color: white;
|
||||
text-decoration: none;
|
||||
}
|
||||
|
||||
#navbar_secondary {
|
||||
background-color: #738073;
|
||||
border-bottom: 1px solid #5C665C;
|
||||
border-left: 1px solid #5C665C;
|
||||
border-right: 1px solid #5C665C;
|
||||
padding: 0.3em;
|
||||
position: relative;
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
p {
|
||||
margin-left: 1em;
|
||||
margin-right: 1em;
|
||||
}
|
||||
|
||||
pre {
|
||||
margin-left: 3em;
|
||||
margin-right: 3em;
|
||||
padding: 0.3em;
|
||||
border: 1px solid #bbb;
|
||||
background-color: #f7f7f7;
|
||||
}
|
||||
|
||||
dl dt {
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
#proj_desc {
|
||||
font-size: 1.2em;
|
||||
}
|
||||
|
||||
#repos {
|
||||
margin-left: 1em;
|
||||
margin-right: 1em;
|
||||
border-collapse: collapse;
|
||||
border: solid 1px #6A996A;
|
||||
}
|
||||
|
||||
#repos th {
|
||||
background-color: #7BB37B;
|
||||
border: solid 1px #6A996A;
|
||||
}
|
||||
|
||||
#repos td {
|
||||
padding: 0.2em;
|
||||
border: solid 1px #6A996A;
|
||||
}
|
||||
@@ -1,23 +1,69 @@
|
||||
@chapter Demuxers
|
||||
@c man begin DEMUXERS
|
||||
|
||||
Demuxers are configured elements in FFmpeg that can read the
|
||||
Demuxers are configured elements in FFmpeg which allow to read the
|
||||
multimedia streams from a particular type of file.
|
||||
|
||||
When you configure your FFmpeg build, all the supported demuxers
|
||||
are enabled by default. You can list all available ones using the
|
||||
configure option @code{--list-demuxers}.
|
||||
configure option "--list-demuxers".
|
||||
|
||||
You can disable all the demuxers using the configure option
|
||||
@code{--disable-demuxers}, and selectively enable a single demuxer with
|
||||
the option @code{--enable-demuxer=@var{DEMUXER}}, or disable it
|
||||
with the option @code{--disable-demuxer=@var{DEMUXER}}.
|
||||
"--disable-demuxers", and selectively enable a single demuxer with
|
||||
the option "--enable-demuxer=@var{DEMUXER}", or disable it
|
||||
with the option "--disable-demuxer=@var{DEMUXER}".
|
||||
|
||||
The option @code{-formats} of the ff* tools will display the list of
|
||||
The option "-formats" of the ff* tools will display the list of
|
||||
enabled demuxers.
|
||||
|
||||
The description of some of the currently available demuxers follows.
|
||||
|
||||
@section image2
|
||||
|
||||
Image file demuxer.
|
||||
|
||||
This demuxer reads from a list of image files specified by a pattern.
|
||||
|
||||
The pattern may contain the string "%d" or "%0@var{N}d", which
|
||||
specifies the position of the characters representing a sequential
|
||||
number in each filename matched by the pattern. If the form
|
||||
"%d0@var{N}d" is used, the string representing the number in each
|
||||
filename is 0-padded and @var{N} is the total number of 0-padded
|
||||
digits representing the number. The literal character '%' can be
|
||||
specified in the pattern with the string "%%".
|
||||
|
||||
If the pattern contains "%d" or "%0@var{N}d", the first filename of
|
||||
the file list specified by the pattern must contain a number
|
||||
inclusively contained between 0 and 4, all the following numbers must
|
||||
be sequential. This limitation may be hopefully fixed.
|
||||
|
||||
The pattern may contain a suffix which is used to automatically
|
||||
determine the format of the images contained in the files.
|
||||
|
||||
For example the pattern "img-%03d.bmp" will match a sequence of
|
||||
filenames of the form @file{img-001.bmp}, @file{img-002.bmp}, ...,
|
||||
@file{img-010.bmp}, etc.; the pattern "i%%m%%g-%d.jpg" will match a
|
||||
sequence of filenames of the form @file{i%m%g-1.jpg},
|
||||
@file{i%m%g-2.jpg}, ..., @file{i%m%g-10.jpg}, etc.
|
||||
|
||||
The size, the pixel format, and the format of each image must be the
|
||||
same for all the files in the sequence.
|
||||
|
||||
The following example shows how to use @file{ffmpeg} for creating a
|
||||
video from the images in the file sequence @file{img-001.jpeg},
|
||||
@file{img-002.jpeg}, ..., assuming an input framerate of 10 frames per
|
||||
second:
|
||||
@example
|
||||
ffmpeg -r 10 -f image2 -i 'img-%03d.jpeg' out.avi
|
||||
@end example
|
||||
|
||||
Note that the pattern must not necessarily contain "%d" or
|
||||
"%0@var{N}d", for example to convert a single image file
|
||||
@file{img.jpeg} you can employ the command:
|
||||
@example
|
||||
ffmpeg -f image2 -i img.jpeg img.png
|
||||
@end example
|
||||
|
||||
@section applehttp
|
||||
|
||||
Apple HTTP Live Streaming demuxer.
|
||||
@@ -29,446 +75,4 @@ the caller can decide which variant streams to actually receive.
|
||||
The total bitrate of the variant that the stream belongs to is
|
||||
available in a metadata key named "variant_bitrate".
|
||||
|
||||
@section apng
|
||||
|
||||
Animated Portable Network Graphics demuxer.
|
||||
|
||||
This demuxer is used to demux APNG files.
|
||||
All headers, but the PNG signature, up to (but not including) the first
|
||||
fcTL chunk are transmitted as extradata.
|
||||
Frames are then split as being all the chunks between two fcTL ones, or
|
||||
between the last fcTL and IEND chunks.
|
||||
|
||||
@table @option
|
||||
@item -ignore_loop @var{bool}
|
||||
Ignore the loop variable in the file if set.
|
||||
@item -max_fps @var{int}
|
||||
Maximum framerate in frames per second (0 for no limit).
|
||||
@item -default_fps @var{int}
|
||||
Default framerate in frames per second when none is specified in the file
|
||||
(0 meaning as fast as possible).
|
||||
@end table
|
||||
|
||||
@section asf
|
||||
|
||||
Advanced Systems Format demuxer.
|
||||
|
||||
This demuxer is used to demux ASF files and MMS network streams.
|
||||
|
||||
@table @option
|
||||
@item -no_resync_search @var{bool}
|
||||
Do not try to resynchronize by looking for a certain optional start code.
|
||||
@end table
|
||||
|
||||
@anchor{concat}
|
||||
@section concat
|
||||
|
||||
Virtual concatenation script demuxer.
|
||||
|
||||
This demuxer reads a list of files and other directives from a text file and
|
||||
demuxes them one after the other, as if all their packet had been muxed
|
||||
together.
|
||||
|
||||
The timestamps in the files are adjusted so that the first file starts at 0
|
||||
and each next file starts where the previous one finishes. Note that it is
|
||||
done globally and may cause gaps if all streams do not have exactly the same
|
||||
length.
|
||||
|
||||
All files must have the same streams (same codecs, same time base, etc.).
|
||||
|
||||
The duration of each file is used to adjust the timestamps of the next file:
|
||||
if the duration is incorrect (because it was computed using the bit-rate or
|
||||
because the file is truncated, for example), it can cause artifacts. The
|
||||
@code{duration} directive can be used to override the duration stored in
|
||||
each file.
|
||||
|
||||
@subsection Syntax
|
||||
|
||||
The script is a text file in extended-ASCII, with one directive per line.
|
||||
Empty lines, leading spaces and lines starting with '#' are ignored. The
|
||||
following directive is recognized:
|
||||
|
||||
@table @option
|
||||
|
||||
@item @code{file @var{path}}
|
||||
Path to a file to read; special characters and spaces must be escaped with
|
||||
backslash or single quotes.
|
||||
|
||||
All subsequent file-related directives apply to that file.
|
||||
|
||||
@item @code{ffconcat version 1.0}
|
||||
Identify the script type and version. It also sets the @option{safe} option
|
||||
to 1 if it was -1.
|
||||
|
||||
To make FFmpeg recognize the format automatically, this directive must
|
||||
appears exactly as is (no extra space or byte-order-mark) on the very first
|
||||
line of the script.
|
||||
|
||||
@item @code{duration @var{dur}}
|
||||
Duration of the file. This information can be specified from the file;
|
||||
specifying it here may be more efficient or help if the information from the
|
||||
file is not available or accurate.
|
||||
|
||||
If the duration is set for all files, then it is possible to seek in the
|
||||
whole concatenated video.
|
||||
|
||||
@item @code{stream}
|
||||
Introduce a stream in the virtual file.
|
||||
All subsequent stream-related directives apply to the last introduced
|
||||
stream.
|
||||
Some streams properties must be set in order to allow identifying the
|
||||
matching streams in the subfiles.
|
||||
If no streams are defined in the script, the streams from the first file are
|
||||
copied.
|
||||
|
||||
@item @code{exact_stream_id @var{id}}
|
||||
Set the id of the stream.
|
||||
If this directive is given, the string with the corresponding id in the
|
||||
subfiles will be used.
|
||||
This is especially useful for MPEG-PS (VOB) files, where the order of the
|
||||
streams is not reliable.
|
||||
|
||||
@end table
|
||||
|
||||
@subsection Options
|
||||
|
||||
This demuxer accepts the following option:
|
||||
|
||||
@table @option
|
||||
|
||||
@item safe
|
||||
If set to 1, reject unsafe file paths. A file path is considered safe if it
|
||||
does not contain a protocol specification and is relative and all components
|
||||
only contain characters from the portable character set (letters, digits,
|
||||
period, underscore and hyphen) and have no period at the beginning of a
|
||||
component.
|
||||
|
||||
If set to 0, any file name is accepted.
|
||||
|
||||
The default is 1.
|
||||
|
||||
-1 is equivalent to 1 if the format was automatically
|
||||
probed and 0 otherwise.
|
||||
|
||||
@item auto_convert
|
||||
If set to 1, try to perform automatic conversions on packet data to make the
|
||||
streams concatenable.
|
||||
|
||||
Currently, the only conversion is adding the h264_mp4toannexb bitstream
|
||||
filter to H.264 streams in MP4 format. This is necessary in particular if
|
||||
there are resolution changes.
|
||||
|
||||
@end table
|
||||
|
||||
@section flv
|
||||
|
||||
Adobe Flash Video Format demuxer.
|
||||
|
||||
This demuxer is used to demux FLV files and RTMP network streams.
|
||||
|
||||
@table @option
|
||||
@item -flv_metadata @var{bool}
|
||||
Allocate the streams according to the onMetaData array content.
|
||||
@end table
|
||||
|
||||
@section libgme
|
||||
|
||||
The Game Music Emu library is a collection of video game music file emulators.
|
||||
|
||||
See @url{http://code.google.com/p/game-music-emu/} for more information.
|
||||
|
||||
Some files have multiple tracks. The demuxer will pick the first track by
|
||||
default. The @option{track_index} option can be used to select a different
|
||||
track. Track indexes start at 0. The demuxer exports the number of tracks as
|
||||
@var{tracks} meta data entry.
|
||||
|
||||
For very large files, the @option{max_size} option may have to be adjusted.
|
||||
|
||||
@section libquvi
|
||||
|
||||
Play media from Internet services using the quvi project.
|
||||
|
||||
The demuxer accepts a @option{format} option to request a specific quality. It
|
||||
is by default set to @var{best}.
|
||||
|
||||
See @url{http://quvi.sourceforge.net/} for more information.
|
||||
|
||||
FFmpeg needs to be built with @code{--enable-libquvi} for this demuxer to be
|
||||
enabled.
|
||||
|
||||
@section gif
|
||||
|
||||
Animated GIF demuxer.
|
||||
|
||||
It accepts the following options:
|
||||
|
||||
@table @option
|
||||
@item min_delay
|
||||
Set the minimum valid delay between frames in hundredths of seconds.
|
||||
Range is 0 to 6000. Default value is 2.
|
||||
|
||||
@item default_delay
|
||||
Set the default delay between frames in hundredths of seconds.
|
||||
Range is 0 to 6000. Default value is 10.
|
||||
|
||||
@item ignore_loop
|
||||
GIF files can contain information to loop a certain number of times (or
|
||||
infinitely). If @option{ignore_loop} is set to 1, then the loop setting
|
||||
from the input will be ignored and looping will not occur. If set to 0,
|
||||
then looping will occur and will cycle the number of times according to
|
||||
the GIF. Default value is 1.
|
||||
@end table
|
||||
|
||||
For example, with the overlay filter, place an infinitely looping GIF
|
||||
over another video:
|
||||
@example
|
||||
ffmpeg -i input.mp4 -ignore_loop 0 -i input.gif -filter_complex overlay=shortest=1 out.mkv
|
||||
@end example
|
||||
|
||||
Note that in the above example the shortest option for overlay filter is
|
||||
used to end the output video at the length of the shortest input file,
|
||||
which in this case is @file{input.mp4} as the GIF in this example loops
|
||||
infinitely.
|
||||
|
||||
@section image2
|
||||
|
||||
Image file demuxer.
|
||||
|
||||
This demuxer reads from a list of image files specified by a pattern.
|
||||
The syntax and meaning of the pattern is specified by the
|
||||
option @var{pattern_type}.
|
||||
|
||||
The pattern may contain a suffix which is used to automatically
|
||||
determine the format of the images contained in the files.
|
||||
|
||||
The size, the pixel format, and the format of each image must be the
|
||||
same for all the files in the sequence.
|
||||
|
||||
This demuxer accepts the following options:
|
||||
@table @option
|
||||
@item framerate
|
||||
Set the frame rate for the video stream. It defaults to 25.
|
||||
@item loop
|
||||
If set to 1, loop over the input. Default value is 0.
|
||||
@item pattern_type
|
||||
Select the pattern type used to interpret the provided filename.
|
||||
|
||||
@var{pattern_type} accepts one of the following values.
|
||||
@table @option
|
||||
@item sequence
|
||||
Select a sequence pattern type, used to specify a sequence of files
|
||||
indexed by sequential numbers.
|
||||
|
||||
A sequence pattern may contain the string "%d" or "%0@var{N}d", which
|
||||
specifies the position of the characters representing a sequential
|
||||
number in each filename matched by the pattern. If the form
|
||||
"%d0@var{N}d" is used, the string representing the number in each
|
||||
filename is 0-padded and @var{N} is the total number of 0-padded
|
||||
digits representing the number. The literal character '%' can be
|
||||
specified in the pattern with the string "%%".
|
||||
|
||||
If the sequence pattern contains "%d" or "%0@var{N}d", the first filename of
|
||||
the file list specified by the pattern must contain a number
|
||||
inclusively contained between @var{start_number} and
|
||||
@var{start_number}+@var{start_number_range}-1, and all the following
|
||||
numbers must be sequential.
|
||||
|
||||
For example the pattern "img-%03d.bmp" will match a sequence of
|
||||
filenames of the form @file{img-001.bmp}, @file{img-002.bmp}, ...,
|
||||
@file{img-010.bmp}, etc.; the pattern "i%%m%%g-%d.jpg" will match a
|
||||
sequence of filenames of the form @file{i%m%g-1.jpg},
|
||||
@file{i%m%g-2.jpg}, ..., @file{i%m%g-10.jpg}, etc.
|
||||
|
||||
Note that the pattern must not necessarily contain "%d" or
|
||||
"%0@var{N}d", for example to convert a single image file
|
||||
@file{img.jpeg} you can employ the command:
|
||||
@example
|
||||
ffmpeg -i img.jpeg img.png
|
||||
@end example
|
||||
|
||||
@item glob
|
||||
Select a glob wildcard pattern type.
|
||||
|
||||
The pattern is interpreted like a @code{glob()} pattern. This is only
|
||||
selectable if libavformat was compiled with globbing support.
|
||||
|
||||
@item glob_sequence @emph{(deprecated, will be removed)}
|
||||
Select a mixed glob wildcard/sequence pattern.
|
||||
|
||||
If your version of libavformat was compiled with globbing support, and
|
||||
the provided pattern contains at least one glob meta character among
|
||||
@code{%*?[]@{@}} that is preceded by an unescaped "%", the pattern is
|
||||
interpreted like a @code{glob()} pattern, otherwise it is interpreted
|
||||
like a sequence pattern.
|
||||
|
||||
All glob special characters @code{%*?[]@{@}} must be prefixed
|
||||
with "%". To escape a literal "%" you shall use "%%".
|
||||
|
||||
For example the pattern @code{foo-%*.jpeg} will match all the
|
||||
filenames prefixed by "foo-" and terminating with ".jpeg", and
|
||||
@code{foo-%?%?%?.jpeg} will match all the filenames prefixed with
|
||||
"foo-", followed by a sequence of three characters, and terminating
|
||||
with ".jpeg".
|
||||
|
||||
This pattern type is deprecated in favor of @var{glob} and
|
||||
@var{sequence}.
|
||||
@end table
|
||||
|
||||
Default value is @var{glob_sequence}.
|
||||
@item pixel_format
|
||||
Set the pixel format of the images to read. If not specified the pixel
|
||||
format is guessed from the first image file in the sequence.
|
||||
@item start_number
|
||||
Set the index of the file matched by the image file pattern to start
|
||||
to read from. Default value is 0.
|
||||
@item start_number_range
|
||||
Set the index interval range to check when looking for the first image
|
||||
file in the sequence, starting from @var{start_number}. Default value
|
||||
is 5.
|
||||
@item ts_from_file
|
||||
If set to 1, will set frame timestamp to modification time of image file. Note
|
||||
that monotonity of timestamps is not provided: images go in the same order as
|
||||
without this option. Default value is 0.
|
||||
If set to 2, will set frame timestamp to the modification time of the image file in
|
||||
nanosecond precision.
|
||||
@item video_size
|
||||
Set the video size of the images to read. If not specified the video
|
||||
size is guessed from the first image file in the sequence.
|
||||
@end table
|
||||
|
||||
@subsection Examples
|
||||
|
||||
@itemize
|
||||
@item
|
||||
Use @command{ffmpeg} for creating a video from the images in the file
|
||||
sequence @file{img-001.jpeg}, @file{img-002.jpeg}, ..., assuming an
|
||||
input frame rate of 10 frames per second:
|
||||
@example
|
||||
ffmpeg -framerate 10 -i 'img-%03d.jpeg' out.mkv
|
||||
@end example
|
||||
|
||||
@item
|
||||
As above, but start by reading from a file with index 100 in the sequence:
|
||||
@example
|
||||
ffmpeg -framerate 10 -start_number 100 -i 'img-%03d.jpeg' out.mkv
|
||||
@end example
|
||||
|
||||
@item
|
||||
Read images matching the "*.png" glob pattern , that is all the files
|
||||
terminating with the ".png" suffix:
|
||||
@example
|
||||
ffmpeg -framerate 10 -pattern_type glob -i "*.png" out.mkv
|
||||
@end example
|
||||
@end itemize
|
||||
|
||||
@section mov/mp4/3gp/Quicktme
|
||||
|
||||
Quicktime / MP4 demuxer.
|
||||
|
||||
This demuxer accepts the following options:
|
||||
@table @option
|
||||
@item enable_drefs
|
||||
Enable loading of external tracks, disabled by default.
|
||||
Enabling this can theoretically leak information in some use cases.
|
||||
|
||||
@item use_absolute_path
|
||||
Allows loading of external tracks via absolute paths, disabled by default.
|
||||
Enabling this poses a security risk. It should only be enabled if the source
|
||||
is known to be non malicious.
|
||||
|
||||
@end table
|
||||
|
||||
@section mpegts
|
||||
|
||||
MPEG-2 transport stream demuxer.
|
||||
|
||||
@table @option
|
||||
|
||||
@item fix_teletext_pts
|
||||
Overrides teletext packet PTS and DTS values with the timestamps calculated
|
||||
from the PCR of the first program which the teletext stream is part of and is
|
||||
not discarded. Default value is 1, set this option to 0 if you want your
|
||||
teletext packet PTS and DTS values untouched.
|
||||
@end table
|
||||
|
||||
@section rawvideo
|
||||
|
||||
Raw video demuxer.
|
||||
|
||||
This demuxer allows one to read raw video data. Since there is no header
|
||||
specifying the assumed video parameters, the user must specify them
|
||||
in order to be able to decode the data correctly.
|
||||
|
||||
This demuxer accepts the following options:
|
||||
@table @option
|
||||
|
||||
@item framerate
|
||||
Set input video frame rate. Default value is 25.
|
||||
|
||||
@item pixel_format
|
||||
Set the input video pixel format. Default value is @code{yuv420p}.
|
||||
|
||||
@item video_size
|
||||
Set the input video size. This value must be specified explicitly.
|
||||
@end table
|
||||
|
||||
For example to read a rawvideo file @file{input.raw} with
|
||||
@command{ffplay}, assuming a pixel format of @code{rgb24}, a video
|
||||
size of @code{320x240}, and a frame rate of 10 images per second, use
|
||||
the command:
|
||||
@example
|
||||
ffplay -f rawvideo -pixel_format rgb24 -video_size 320x240 -framerate 10 input.raw
|
||||
@end example
|
||||
|
||||
@section sbg
|
||||
|
||||
SBaGen script demuxer.
|
||||
|
||||
This demuxer reads the script language used by SBaGen
|
||||
@url{http://uazu.net/sbagen/} to generate binaural beats sessions. A SBG
|
||||
script looks like that:
|
||||
@example
|
||||
-SE
|
||||
a: 300-2.5/3 440+4.5/0
|
||||
b: 300-2.5/0 440+4.5/3
|
||||
off: -
|
||||
NOW == a
|
||||
+0:07:00 == b
|
||||
+0:14:00 == a
|
||||
+0:21:00 == b
|
||||
+0:30:00 off
|
||||
@end example
|
||||
|
||||
A SBG script can mix absolute and relative timestamps. If the script uses
|
||||
either only absolute timestamps (including the script start time) or only
|
||||
relative ones, then its layout is fixed, and the conversion is
|
||||
straightforward. On the other hand, if the script mixes both kind of
|
||||
timestamps, then the @var{NOW} reference for relative timestamps will be
|
||||
taken from the current time of day at the time the script is read, and the
|
||||
script layout will be frozen according to that reference. That means that if
|
||||
the script is directly played, the actual times will match the absolute
|
||||
timestamps up to the sound controller's clock accuracy, but if the user
|
||||
somehow pauses the playback or seeks, all times will be shifted accordingly.
|
||||
|
||||
@section tedcaptions
|
||||
|
||||
JSON captions used for @url{http://www.ted.com/, TED Talks}.
|
||||
|
||||
TED does not provide links to the captions, but they can be guessed from the
|
||||
page. The file @file{tools/bookmarklets.html} from the FFmpeg source tree
|
||||
contains a bookmarklet to expose them.
|
||||
|
||||
This demuxer accepts the following option:
|
||||
@table @option
|
||||
@item start_time
|
||||
Set the start time of the TED talk, in milliseconds. The default is 15000
|
||||
(15s). It is used to sync the captions with the downloadable videos, because
|
||||
they include a 15s intro.
|
||||
@end table
|
||||
|
||||
Example: convert the captions to a format most players understand:
|
||||
@example
|
||||
ffmpeg -i http://www.ted.com/talks/subtitles/id/1/lang/en talk1-en.srt
|
||||
@end example
|
||||
|
||||
@c man end DEMUXERS
|
||||
@c man end INPUT DEVICES
|
||||
|
||||
@@ -11,78 +11,80 @@
|
||||
|
||||
@chapter Developers Guide
|
||||
|
||||
@section Notes for external developers
|
||||
|
||||
This document is mostly useful for internal FFmpeg developers.
|
||||
External developers who need to use the API in their application should
|
||||
refer to the API doxygen documentation in the public headers, and
|
||||
check the examples in @file{doc/examples} and in the source code to
|
||||
see how the public API is employed.
|
||||
|
||||
You can use the FFmpeg libraries in your commercial program, but you
|
||||
are encouraged to @emph{publish any patch you make}. In this case the
|
||||
best way to proceed is to send your patches to the ffmpeg-devel
|
||||
mailing list following the guidelines illustrated in the remainder of
|
||||
this document.
|
||||
|
||||
For more detailed legal information about the use of FFmpeg in
|
||||
external programs read the @file{LICENSE} file in the source tree and
|
||||
consult @url{http://ffmpeg.org/legal.html}.
|
||||
|
||||
@section Contributing
|
||||
|
||||
There are 3 ways by which code gets into ffmpeg.
|
||||
@section API
|
||||
@itemize @bullet
|
||||
@item Submitting Patches to the main developer mailing list
|
||||
see @ref{Submitting patches} for details.
|
||||
@item Directly committing changes to the main tree.
|
||||
@item Committing changes to a git clone, for example on github.com or
|
||||
gitorious.org. And asking us to merge these changes.
|
||||
@item libavcodec is the library containing the codecs (both encoding and
|
||||
decoding). Look at @file{libavcodec/apiexample.c} to see how to use it.
|
||||
|
||||
@item libavformat is the library containing the file format handling (mux and
|
||||
demux code for several formats). Look at @file{ffplay.c} to use it in a
|
||||
player. See @file{libavformat/output-example.c} to use it to generate
|
||||
audio or video streams.
|
||||
|
||||
@end itemize
|
||||
|
||||
Whichever way, changes should be reviewed by the maintainer of the code
|
||||
before they are committed. And they should follow the @ref{Coding Rules}.
|
||||
The developer making the commit and the author are responsible for their changes
|
||||
and should try to fix issues their commit causes.
|
||||
@section Integrating libavcodec or libavformat in your program
|
||||
|
||||
You can integrate all the source code of the libraries to link them
|
||||
statically to avoid any version problem. All you need is to provide a
|
||||
'config.mak' and a 'config.h' in the parent directory. See the defines
|
||||
generated by ./configure to understand what is needed.
|
||||
|
||||
You can use libavcodec or libavformat in your commercial program, but
|
||||
@emph{any patch you make must be published}. The best way to proceed is
|
||||
to send your patches to the FFmpeg mailing list.
|
||||
|
||||
@anchor{Coding Rules}
|
||||
@section Coding Rules
|
||||
|
||||
@subsection Code formatting conventions
|
||||
|
||||
There are the following guidelines regarding the indentation in files:
|
||||
|
||||
FFmpeg is programmed in the ISO C90 language with a few additional
|
||||
features from ISO C99, namely:
|
||||
@itemize @bullet
|
||||
@item
|
||||
Indent size is 4.
|
||||
|
||||
the @samp{inline} keyword;
|
||||
@item
|
||||
@samp{//} comments;
|
||||
@item
|
||||
designated struct initializers (@samp{struct s x = @{ .i = 17 @};})
|
||||
@item
|
||||
compound literals (@samp{x = (struct s) @{ 17, 23 @};})
|
||||
@end itemize
|
||||
|
||||
These features are supported by all compilers we care about, so we will not
|
||||
accept patches to remove their use unless they absolutely do not impair
|
||||
clarity and performance.
|
||||
|
||||
All code must compile with recent versions of GCC and a number of other
|
||||
currently supported compilers. To ensure compatibility, please do not use
|
||||
additional C99 features or GCC extensions. Especially watch out for:
|
||||
@itemize @bullet
|
||||
@item
|
||||
mixing statements and declarations;
|
||||
@item
|
||||
@samp{long long} (use @samp{int64_t} instead);
|
||||
@item
|
||||
@samp{__attribute__} not protected by @samp{#ifdef __GNUC__} or similar;
|
||||
@item
|
||||
GCC statement expressions (@samp{(x = (@{ int y = 4; y; @})}).
|
||||
@end itemize
|
||||
|
||||
Indent size is 4.
|
||||
The presentation is one inspired by 'indent -i4 -kr -nut'.
|
||||
The TAB character is forbidden outside of Makefiles as is any
|
||||
form of trailing whitespace. Commits containing either will be
|
||||
rejected by the git repository.
|
||||
|
||||
@item
|
||||
You should try to limit your code lines to 80 characters; however, do so if
|
||||
and only if this improves readability.
|
||||
@end itemize
|
||||
The presentation is one inspired by 'indent -i4 -kr -nut'.
|
||||
|
||||
The main priority in FFmpeg is simplicity and small code size in order to
|
||||
minimize the bug count.
|
||||
|
||||
@subsection Comments
|
||||
Use the JavaDoc/Doxygen format (see examples below) so that code documentation
|
||||
Comments: Use the JavaDoc/Doxygen
|
||||
format (see examples below) so that code documentation
|
||||
can be generated automatically. All nontrivial functions should have a comment
|
||||
above them explaining what the function does, even if it is just one sentence.
|
||||
All structures and their member variables should be documented, too.
|
||||
|
||||
Avoid Qt-style and similar Doxygen syntax with @code{!} in it, i.e. replace
|
||||
@code{//!} with @code{///} and similar. Also @@ syntax should be employed
|
||||
for markup commands, i.e. use @code{@@param} and not @code{\param}.
|
||||
|
||||
@example
|
||||
/**
|
||||
* @@file
|
||||
* @@file mpeg.c
|
||||
* MPEG codec.
|
||||
* @@author ...
|
||||
*/
|
||||
@@ -92,7 +94,7 @@ for markup commands, i.e. use @code{@@param} and not @code{\param}.
|
||||
* more text ...
|
||||
* ...
|
||||
*/
|
||||
typedef struct Foobar @{
|
||||
typedef struct Foobar@{
|
||||
int var1; /**< var1 description */
|
||||
int var2; ///< var2 description
|
||||
/** var3 description */
|
||||
@@ -110,300 +112,137 @@ int myfunc(int my_parameter)
|
||||
...
|
||||
@end example
|
||||
|
||||
@subsection C language features
|
||||
|
||||
FFmpeg is programmed in the ISO C90 language with a few additional
|
||||
features from ISO C99, namely:
|
||||
|
||||
@itemize @bullet
|
||||
@item
|
||||
the @samp{inline} keyword;
|
||||
|
||||
@item
|
||||
@samp{//} comments;
|
||||
|
||||
@item
|
||||
designated struct initializers (@samp{struct s x = @{ .i = 17 @};})
|
||||
|
||||
@item
|
||||
compound literals (@samp{x = (struct s) @{ 17, 23 @};})
|
||||
@end itemize
|
||||
|
||||
These features are supported by all compilers we care about, so we will not
|
||||
accept patches to remove their use unless they absolutely do not impair
|
||||
clarity and performance.
|
||||
|
||||
All code must compile with recent versions of GCC and a number of other
|
||||
currently supported compilers. To ensure compatibility, please do not use
|
||||
additional C99 features or GCC extensions. Especially watch out for:
|
||||
|
||||
@itemize @bullet
|
||||
@item
|
||||
mixing statements and declarations;
|
||||
|
||||
@item
|
||||
@samp{long long} (use @samp{int64_t} instead);
|
||||
|
||||
@item
|
||||
@samp{__attribute__} not protected by @samp{#ifdef __GNUC__} or similar;
|
||||
|
||||
@item
|
||||
GCC statement expressions (@samp{(x = (@{ int y = 4; y; @})}).
|
||||
@end itemize
|
||||
|
||||
@subsection Naming conventions
|
||||
All names should be composed with underscores (_), not CamelCase. For example,
|
||||
@samp{avfilter_get_video_buffer} is an acceptable function name and
|
||||
@samp{AVFilterGetVideo} is not. The exception from this are type names, like
|
||||
for example structs and enums; they should always be in the CamelCase
|
||||
|
||||
There are the following conventions for naming variables and functions:
|
||||
|
||||
@itemize @bullet
|
||||
@item
|
||||
For local variables no prefix is required.
|
||||
|
||||
@item
|
||||
For file-scope variables and functions declared as @code{static}, no prefix
|
||||
is required.
|
||||
|
||||
@item
|
||||
For variables and functions visible outside of file scope, but only used
|
||||
internally by a library, an @code{ff_} prefix should be used,
|
||||
e.g. @samp{ff_w64_demuxer}.
|
||||
|
||||
@item
|
||||
For variables and functions visible outside of file scope, used internally
|
||||
across multiple libraries, use @code{avpriv_} as prefix, for example,
|
||||
@samp{avpriv_aac_parse_header}.
|
||||
|
||||
@item
|
||||
Each library has its own prefix for public symbols, in addition to the
|
||||
commonly used @code{av_} (@code{avformat_} for libavformat,
|
||||
@code{avcodec_} for libavcodec, @code{swr_} for libswresample, etc).
|
||||
Check the existing code and choose names accordingly.
|
||||
Note that some symbols without these prefixes are also exported for
|
||||
retro-compatibility reasons. These exceptions are declared in the
|
||||
@code{lib<name>/lib<name>.v} files.
|
||||
@end itemize
|
||||
|
||||
Furthermore, name space reserved for the system should not be invaded.
|
||||
Identifiers ending in @code{_t} are reserved by
|
||||
@url{http://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html#tag_02_02_02, POSIX}.
|
||||
Also avoid names starting with @code{__} or @code{_} followed by an uppercase
|
||||
letter as they are reserved by the C standard. Names starting with @code{_}
|
||||
are reserved at the file level and may not be used for externally visible
|
||||
symbols. If in doubt, just avoid names starting with @code{_} altogether.
|
||||
|
||||
@subsection Miscellaneous conventions
|
||||
|
||||
@itemize @bullet
|
||||
@item
|
||||
fprintf and printf are forbidden in libavformat and libavcodec,
|
||||
please use av_log() instead.
|
||||
|
||||
@item
|
||||
Casts should be used only when necessary. Unneeded parentheses
|
||||
should also be avoided if they don't make the code easier to understand.
|
||||
@end itemize
|
||||
|
||||
@subsection Editor configuration
|
||||
In order to configure Vim to follow FFmpeg formatting conventions, paste
|
||||
the following snippet into your @file{.vimrc}:
|
||||
@example
|
||||
" indentation rules for FFmpeg: 4 spaces, no tabs
|
||||
set expandtab
|
||||
set shiftwidth=4
|
||||
set softtabstop=4
|
||||
set cindent
|
||||
set cinoptions=(0
|
||||
" Allow tabs in Makefiles.
|
||||
autocmd FileType make,automake set noexpandtab shiftwidth=8 softtabstop=8
|
||||
" Trailing whitespace and tabs are forbidden, so highlight them.
|
||||
highlight ForbiddenWhitespace ctermbg=red guibg=red
|
||||
match ForbiddenWhitespace /\s\+$\|\t/
|
||||
" Do not highlight spaces at the end of line while typing on that line.
|
||||
autocmd InsertEnter * match ForbiddenWhitespace /\t\|\s\+\%#\@@<!$/
|
||||
@end example
|
||||
|
||||
For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
|
||||
@example
|
||||
(c-add-style "ffmpeg"
|
||||
'("k&r"
|
||||
(c-basic-offset . 4)
|
||||
(indent-tabs-mode . nil)
|
||||
(show-trailing-whitespace . t)
|
||||
(c-offsets-alist
|
||||
(statement-cont . (c-lineup-assignments +)))
|
||||
)
|
||||
)
|
||||
(setq c-default-style "ffmpeg")
|
||||
@end example
|
||||
|
||||
@section Development Policy
|
||||
|
||||
@enumerate
|
||||
@item
|
||||
Contributions should be licensed under the
|
||||
@uref{http://www.gnu.org/licenses/lgpl-2.1.html, LGPL 2.1},
|
||||
including an "or any later version" clause, or, if you prefer
|
||||
a gift-style license, the
|
||||
@uref{http://opensource.org/licenses/isc-license.txt, ISC} or
|
||||
@uref{http://mit-license.org/, MIT} license.
|
||||
@uref{http://www.gnu.org/licenses/gpl-2.0.html, GPL 2} including
|
||||
an "or any later version" clause is also acceptable, but LGPL is
|
||||
preferred.
|
||||
If you add a new file, give it a proper license header. Do not copy and
|
||||
paste it from a random place, use an existing file as template.
|
||||
|
||||
Contributions should be licensed under the LGPL 2.1, including an
|
||||
"or any later version" clause, or the MIT license. GPL 2 including
|
||||
an "or any later version" clause is also acceptable, but LGPL is
|
||||
preferred.
|
||||
@item
|
||||
You must not commit code which breaks FFmpeg! (Meaning unfinished but
|
||||
enabled code which breaks compilation or compiles but does not work or
|
||||
breaks the regression tests)
|
||||
You can commit unfinished stuff (for testing etc), but it must be disabled
|
||||
(#ifdef etc) by default so it does not interfere with other developers'
|
||||
work.
|
||||
|
||||
You must not commit code which breaks FFmpeg! (Meaning unfinished but
|
||||
enabled code which breaks compilation or compiles but does not work or
|
||||
breaks the regression tests)
|
||||
You can commit unfinished stuff (for testing etc), but it must be disabled
|
||||
(#ifdef etc) by default so it does not interfere with other developers'
|
||||
work.
|
||||
@item
|
||||
The commit message should have a short first line in the form of
|
||||
a @samp{topic: short description} as a header, separated by a newline
|
||||
from the body consisting of an explanation of why the change is necessary.
|
||||
If the commit fixes a known bug on the bug tracker, the commit message
|
||||
should include its bug ID. Referring to the issue on the bug tracker does
|
||||
not exempt you from writing an excerpt of the bug in the commit message.
|
||||
|
||||
You do not have to over-test things. If it works for you, and you think it
|
||||
should work for others, then commit. If your code has problems
|
||||
(portability, triggers compiler bugs, unusual environment etc) they will be
|
||||
reported and eventually fixed.
|
||||
@item
|
||||
You do not have to over-test things. If it works for you, and you think it
|
||||
should work for others, then commit. If your code has problems
|
||||
(portability, triggers compiler bugs, unusual environment etc) they will be
|
||||
reported and eventually fixed.
|
||||
|
||||
Do not commit unrelated changes together, split them into self-contained
|
||||
pieces. Also do not forget that if part B depends on part A, but A does not
|
||||
depend on B, then A can and should be committed first and separate from B.
|
||||
Keeping changes well split into self-contained parts makes reviewing and
|
||||
understanding them on the commit log mailing list easier. This also helps
|
||||
in case of debugging later on.
|
||||
Also if you have doubts about splitting or not splitting, do not hesitate to
|
||||
ask/discuss it on the developer mailing list.
|
||||
@item
|
||||
Do not commit unrelated changes together, split them into self-contained
|
||||
pieces. Also do not forget that if part B depends on part A, but A does not
|
||||
depend on B, then A can and should be committed first and separate from B.
|
||||
Keeping changes well split into self-contained parts makes reviewing and
|
||||
understanding them on the commit log mailing list easier. This also helps
|
||||
in case of debugging later on.
|
||||
Also if you have doubts about splitting or not splitting, do not hesitate to
|
||||
ask/discuss it on the developer mailing list.
|
||||
Do not change behavior of the programs (renaming options etc) or public
|
||||
API or ABI without first discussing it on the ffmpeg-devel mailing list.
|
||||
Do not remove functionality from the code. Just improve!
|
||||
|
||||
Note: Redundant code can be removed.
|
||||
@item
|
||||
Do not change behavior of the programs (renaming options etc) or public
|
||||
API or ABI without first discussing it on the ffmpeg-devel mailing list.
|
||||
Do not remove functionality from the code. Just improve!
|
||||
|
||||
Note: Redundant code can be removed.
|
||||
|
||||
Do not commit changes to the build system (Makefiles, configure script)
|
||||
which change behavior, defaults etc, without asking first. The same
|
||||
applies to compiler warning fixes, trivial looking fixes and to code
|
||||
maintained by other developers. We usually have a reason for doing things
|
||||
the way we do. Send your changes as patches to the ffmpeg-devel mailing
|
||||
list, and if the code maintainers say OK, you may commit. This does not
|
||||
apply to files you wrote and/or maintain.
|
||||
@item
|
||||
Do not commit changes to the build system (Makefiles, configure script)
|
||||
which change behavior, defaults etc, without asking first. The same
|
||||
applies to compiler warning fixes, trivial looking fixes and to code
|
||||
maintained by other developers. We usually have a reason for doing things
|
||||
the way we do. Send your changes as patches to the ffmpeg-devel mailing
|
||||
list, and if the code maintainers say OK, you may commit. This does not
|
||||
apply to files you wrote and/or maintain.
|
||||
We refuse source indentation and other cosmetic changes if they are mixed
|
||||
with functional changes, such commits will be rejected and removed. Every
|
||||
developer has his own indentation style, you should not change it. Of course
|
||||
if you (re)write something, you can use your own style, even though we would
|
||||
prefer if the indentation throughout FFmpeg was consistent (Many projects
|
||||
force a given indentation style - we do not.). If you really need to make
|
||||
indentation changes (try to avoid this), separate them strictly from real
|
||||
changes.
|
||||
|
||||
NOTE: If you had to put if()@{ .. @} over a large (> 5 lines) chunk of code,
|
||||
then either do NOT change the indentation of the inner part within (do not
|
||||
move it to the right)! or do so in a separate commit
|
||||
@item
|
||||
We refuse source indentation and other cosmetic changes if they are mixed
|
||||
with functional changes, such commits will be rejected and removed. Every
|
||||
developer has his own indentation style, you should not change it. Of course
|
||||
if you (re)write something, you can use your own style, even though we would
|
||||
prefer if the indentation throughout FFmpeg was consistent (Many projects
|
||||
force a given indentation style - we do not.). If you really need to make
|
||||
indentation changes (try to avoid this), separate them strictly from real
|
||||
changes.
|
||||
|
||||
NOTE: If you had to put if()@{ .. @} over a large (> 5 lines) chunk of code,
|
||||
then either do NOT change the indentation of the inner part within (do not
|
||||
move it to the right)! or do so in a separate commit
|
||||
Always fill out the commit log message. Describe in a few lines what you
|
||||
changed and why. You can refer to mailing list postings if you fix a
|
||||
particular bug. Comments such as "fixed!" or "Changed it." are unacceptable.
|
||||
Recommanded format:
|
||||
area changed: Short 1 line description
|
||||
|
||||
details describing what and why and giving references.
|
||||
@item
|
||||
Always fill out the commit log message. Describe in a few lines what you
|
||||
changed and why. You can refer to mailing list postings if you fix a
|
||||
particular bug. Comments such as "fixed!" or "Changed it." are unacceptable.
|
||||
Recommended format:
|
||||
|
||||
@example
|
||||
area changed: Short 1 line description
|
||||
|
||||
details describing what and why and giving references.
|
||||
@end example
|
||||
|
||||
Make sure the author of the commit is set correctly. (see git commit --author)
|
||||
If you apply a patch, send an
|
||||
answer to ffmpeg-devel (or wherever you got the patch from) saying that
|
||||
you applied the patch.
|
||||
@item
|
||||
Make sure the author of the commit is set correctly. (see git commit --author)
|
||||
If you apply a patch, send an
|
||||
answer to ffmpeg-devel (or wherever you got the patch from) saying that
|
||||
you applied the patch.
|
||||
|
||||
When applying patches that have been discussed (at length) on the mailing
|
||||
list, reference the thread in the log message.
|
||||
@item
|
||||
When applying patches that have been discussed (at length) on the mailing
|
||||
list, reference the thread in the log message.
|
||||
|
||||
Do NOT commit to code actively maintained by others without permission.
|
||||
Send a patch to ffmpeg-devel instead. If no one answers within a reasonable
|
||||
timeframe (12h for build failures and security fixes, 3 days small changes,
|
||||
1 week for big patches) then commit your patch if you think it is OK.
|
||||
Also note, the maintainer can simply ask for more time to review!
|
||||
@item
|
||||
Do NOT commit to code actively maintained by others without permission.
|
||||
Send a patch to ffmpeg-devel instead. If no one answers within a reasonable
|
||||
timeframe (12h for build failures and security fixes, 3 days small changes,
|
||||
1 week for big patches) then commit your patch if you think it is OK.
|
||||
Also note, the maintainer can simply ask for more time to review!
|
||||
|
||||
Subscribe to the ffmpeg-cvslog mailing list. The diffs of all commits
|
||||
are sent there and reviewed by all the other developers. Bugs and possible
|
||||
improvements or general questions regarding commits are discussed there. We
|
||||
expect you to react if problems with your code are uncovered.
|
||||
@item
|
||||
Subscribe to the ffmpeg-cvslog mailing list. The diffs of all commits
|
||||
are sent there and reviewed by all the other developers. Bugs and possible
|
||||
improvements or general questions regarding commits are discussed there. We
|
||||
expect you to react if problems with your code are uncovered.
|
||||
|
||||
Update the documentation if you change behavior or add features. If you are
|
||||
unsure how best to do this, send a patch to ffmpeg-devel, the documentation
|
||||
maintainer(s) will review and commit your stuff.
|
||||
@item
|
||||
Update the documentation if you change behavior or add features. If you are
|
||||
unsure how best to do this, send a patch to ffmpeg-devel, the documentation
|
||||
maintainer(s) will review and commit your stuff.
|
||||
|
||||
Try to keep important discussions and requests (also) on the public
|
||||
developer mailing list, so that all developers can benefit from them.
|
||||
@item
|
||||
Try to keep important discussions and requests (also) on the public
|
||||
developer mailing list, so that all developers can benefit from them.
|
||||
|
||||
Never write to unallocated memory, never write over the end of arrays,
|
||||
always check values read from some untrusted source before using them
|
||||
as array index or other risky things.
|
||||
@item
|
||||
Never write to unallocated memory, never write over the end of arrays,
|
||||
always check values read from some untrusted source before using them
|
||||
as array index or other risky things.
|
||||
|
||||
Remember to check if you need to bump versions for the specific libav
|
||||
parts (libavutil, libavcodec, libavformat) you are changing. You need
|
||||
to change the version integer.
|
||||
Incrementing the first component means no backward compatibility to
|
||||
previous versions (e.g. removal of a function from the public API).
|
||||
Incrementing the second component means backward compatible change
|
||||
(e.g. addition of a function to the public API or extension of an
|
||||
existing data structure).
|
||||
Incrementing the third component means a noteworthy binary compatible
|
||||
change (e.g. encoder bug fix that matters for the decoder).
|
||||
@item
|
||||
Remember to check if you need to bump versions for the specific libav*
|
||||
parts (libavutil, libavcodec, libavformat) you are changing. You need
|
||||
to change the version integer.
|
||||
Incrementing the first component means no backward compatibility to
|
||||
previous versions (e.g. removal of a function from the public API).
|
||||
Incrementing the second component means backward compatible change
|
||||
(e.g. addition of a function to the public API or extension of an
|
||||
existing data structure).
|
||||
Incrementing the third component means a noteworthy binary compatible
|
||||
change (e.g. encoder bug fix that matters for the decoder). The third
|
||||
component always starts at 100 to distinguish FFmpeg from Libav.
|
||||
|
||||
Compiler warnings indicate potential bugs or code with bad style. If a type of
|
||||
warning always points to correct and clean code, that warning should
|
||||
be disabled, not the code changed.
|
||||
Thus the remaining warnings can either be bugs or correct code.
|
||||
If it is a bug, the bug has to be fixed. If it is not, the code should
|
||||
be changed to not generate a warning unless that causes a slowdown
|
||||
or obfuscates the code.
|
||||
@item
|
||||
Compiler warnings indicate potential bugs or code with bad style. If a type of
|
||||
warning always points to correct and clean code, that warning should
|
||||
be disabled, not the code changed.
|
||||
Thus the remaining warnings can either be bugs or correct code.
|
||||
If it is a bug, the bug has to be fixed. If it is not, the code should
|
||||
be changed to not generate a warning unless that causes a slowdown
|
||||
or obfuscates the code.
|
||||
|
||||
@item
|
||||
Make sure that no parts of the codebase that you maintain are missing from the
|
||||
@file{MAINTAINERS} file. If something that you want to maintain is missing add it with
|
||||
your name after it.
|
||||
If at some point you no longer want to maintain some code, then please help
|
||||
finding a new maintainer and also don't forget updating the @file{MAINTAINERS} file.
|
||||
If you add a new file, give it a proper license header. Do not copy and
|
||||
paste it from a random place, use an existing file as template.
|
||||
@end enumerate
|
||||
|
||||
We think our rules are not too hard. If you have comments, contact us.
|
||||
|
||||
@anchor{Submitting patches}
|
||||
Note, these rules are mostly borrowed from the MPlayer project.
|
||||
|
||||
@section Submitting patches
|
||||
|
||||
First, read the @ref{Coding Rules} above if you did not yet, in particular
|
||||
the rules regarding patch submission.
|
||||
First, read the (@pxref{Coding Rules}) above if you did not yet.
|
||||
|
||||
When you submit your patch, please use @code{git format-patch} or
|
||||
@code{git send-email}. We cannot read other diffs :-)
|
||||
@@ -418,8 +257,13 @@ for us and greatly increases your chances of getting your patch applied.
|
||||
Use the patcheck tool of FFmpeg to check your patch.
|
||||
The tool is located in the tools directory.
|
||||
|
||||
Run the @ref{Regression tests} before submitting a patch in order to verify
|
||||
it does not cause unexpected problems.
|
||||
Run the regression tests before submitting a patch so that you can
|
||||
verify that there are no big problems.
|
||||
|
||||
Patches should be posted as base64 encoded attachments (or any other
|
||||
encoding which ensures that the patch will not be trashed during
|
||||
transmission) to the ffmpeg-devel mailing list, see
|
||||
@url{http://lists.ffmpeg.org/mailman/listinfo/ffmpeg-devel}
|
||||
|
||||
It also helps quite a bit if you tell us what the patch does (for example
|
||||
'replaces lrint by lrintf'), and why (for example '*BSD isn't C99 compliant
|
||||
@@ -428,13 +272,6 @@ and has no lrint()')
|
||||
Also please if you send several patches, send each patch as a separate mail,
|
||||
do not attach several unrelated patches to the same mail.
|
||||
|
||||
Patches should be posted to the
|
||||
@uref{http://lists.ffmpeg.org/mailman/listinfo/ffmpeg-devel, ffmpeg-devel}
|
||||
mailing list. Use @code{git send-email} when possible since it will properly
|
||||
send patches without requiring extra care. If you cannot, then send patches
|
||||
as base64-encoded attachments, so your patch is not trashed during
|
||||
transmission.
|
||||
|
||||
Your patch will be reviewed on the mailing list. You will likely be asked
|
||||
to make some changes and are expected to send in an improved version that
|
||||
incorporates the requests from the review. This process may go through
|
||||
@@ -449,51 +286,38 @@ send a reminder by email. Your patch should eventually be dealt with.
|
||||
|
||||
@enumerate
|
||||
@item
|
||||
Did you use av_cold for codec initialization and close functions?
|
||||
|
||||
Did you use av_cold for codec initialization and close functions?
|
||||
@item
|
||||
Did you add a long_name under NULL_IF_CONFIG_SMALL to the AVCodec or
|
||||
AVInputFormat/AVOutputFormat struct?
|
||||
|
||||
Did you add a long_name under NULL_IF_CONFIG_SMALL to the AVCodec or
|
||||
AVInputFormat/AVOutputFormat struct?
|
||||
@item
|
||||
Did you bump the minor version number (and reset the micro version
|
||||
number) in @file{libavcodec/version.h} or @file{libavformat/version.h}?
|
||||
|
||||
Did you bump the minor version number (and reset the micro version
|
||||
number) in @file{avcodec.h} or @file{avformat.h}?
|
||||
@item
|
||||
Did you register it in @file{allcodecs.c} or @file{allformats.c}?
|
||||
|
||||
Did you register it in @file{allcodecs.c} or @file{allformats.c}?
|
||||
@item
|
||||
Did you add the AVCodecID to @file{avcodec.h}?
|
||||
When adding new codec IDs, also add an entry to the codec descriptor
|
||||
list in @file{libavcodec/codec_desc.c}.
|
||||
|
||||
Did you add the CodecID to @file{avcodec.h}?
|
||||
@item
|
||||
If it has a FourCC, did you add it to @file{libavformat/riff.c},
|
||||
even if it is only a decoder?
|
||||
|
||||
If it has a fourcc, did you add it to @file{libavformat/riff.c},
|
||||
even if it is only a decoder?
|
||||
@item
|
||||
Did you add a rule to compile the appropriate files in the Makefile?
|
||||
Remember to do this even if you're just adding a format to a file that is
|
||||
already being compiled by some other rule, like a raw demuxer.
|
||||
|
||||
Did you add a rule to compile the appropriate files in the Makefile?
|
||||
Remember to do this even if you're just adding a format to a file that is
|
||||
already being compiled by some other rule, like a raw demuxer.
|
||||
@item
|
||||
Did you add an entry to the table of supported formats or codecs in
|
||||
@file{doc/general.texi}?
|
||||
|
||||
Did you add an entry to the table of supported formats or codecs in
|
||||
@file{doc/general.texi}?
|
||||
@item
|
||||
Did you add an entry in the Changelog?
|
||||
|
||||
Did you add an entry in the Changelog?
|
||||
@item
|
||||
If it depends on a parser or a library, did you add that dependency in
|
||||
configure?
|
||||
|
||||
If it depends on a parser or a library, did you add that dependency in
|
||||
configure?
|
||||
@item
|
||||
Did you @code{git add} the appropriate files before committing?
|
||||
|
||||
Did you @code{git add} the appropriate files before committing?
|
||||
@item
|
||||
Did you make sure it compiles standalone, i.e. with
|
||||
@code{configure --disable-everything --enable-decoder=foo}
|
||||
(or @code{--enable-demuxer} or whatever your component is)?
|
||||
Did you make sure it compiles standalone, i.e. with
|
||||
@code{configure --disable-everything --enable-decoder=foo}
|
||||
(or @code{--enable-demuxer} or whatever your component is)?
|
||||
@end enumerate
|
||||
|
||||
|
||||
@@ -501,109 +325,73 @@ Did you make sure it compiles standalone, i.e. with
|
||||
|
||||
@enumerate
|
||||
@item
|
||||
Does @code{make fate} pass with the patch applied?
|
||||
|
||||
Does 'make fate' pass with the patch applied?
|
||||
@item
|
||||
Was the patch generated with git format-patch or send-email?
|
||||
|
||||
Was the patch generated with git format-patch or send-email?
|
||||
@item
|
||||
Did you sign off your patch? (git commit -s)
|
||||
See @url{http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob_plain;f=Documentation/SubmittingPatches} for the meaning
|
||||
of sign off.
|
||||
|
||||
Did you sign off your patch? (git commit -s)
|
||||
See @url{http://kerneltrap.org/files/Jeremy/DCO.txt} for the meaning
|
||||
of sign off.
|
||||
@item
|
||||
Did you provide a clear git commit log message?
|
||||
|
||||
Did you provide a clear git commit log message?
|
||||
@item
|
||||
Is the patch against latest FFmpeg git master branch?
|
||||
|
||||
Is the patch against latest FFmpeg git master branch?
|
||||
@item
|
||||
Are you subscribed to ffmpeg-devel?
|
||||
(the list is subscribers only due to spam)
|
||||
|
||||
Are you subscribed to ffmpeg-dev?
|
||||
(the list is subscribers only due to spam)
|
||||
@item
|
||||
Have you checked that the changes are minimal, so that the same cannot be
|
||||
achieved with a smaller patch and/or simpler final code?
|
||||
|
||||
Have you checked that the changes are minimal, so that the same cannot be
|
||||
achieved with a smaller patch and/or simpler final code?
|
||||
@item
|
||||
If the change is to speed critical code, did you benchmark it?
|
||||
|
||||
If the change is to speed critical code, did you benchmark it?
|
||||
@item
|
||||
If you did any benchmarks, did you provide them in the mail?
|
||||
|
||||
If you did any benchmarks, did you provide them in the mail?
|
||||
@item
|
||||
Have you checked that the patch does not introduce buffer overflows or
|
||||
other security issues?
|
||||
|
||||
Have you checked that the patch does not introduce buffer overflows or
|
||||
other security issues?
|
||||
@item
|
||||
Did you test your decoder or demuxer against damaged data? If no, see
|
||||
tools/trasher, the noise bitstream filter, and
|
||||
@uref{http://caca.zoy.org/wiki/zzuf, zzuf}. Your decoder or demuxer
|
||||
should not crash, end in a (near) infinite loop, or allocate ridiculous
|
||||
amounts of memory when fed damaged data.
|
||||
|
||||
Did you test your decoder or demuxer against damaged data? If no, see
|
||||
tools/trasher and the noise bitstream filter. Your decoder or demuxer
|
||||
should not crash or end in a (near) infinite loop when fed damaged data.
|
||||
@item
|
||||
Does the patch not mix functional and cosmetic changes?
|
||||
|
||||
Does the patch not mix functional and cosmetic changes?
|
||||
@item
|
||||
Did you add tabs or trailing whitespace to the code? Both are forbidden.
|
||||
|
||||
Did you add tabs or trailing whitespace to the code? Both are forbidden.
|
||||
@item
|
||||
Is the patch attached to the email you send?
|
||||
|
||||
Is the patch attached to the email you send?
|
||||
@item
|
||||
Is the mime type of the patch correct? It should be text/x-diff or
|
||||
text/x-patch or at least text/plain and not application/octet-stream.
|
||||
|
||||
Is the mime type of the patch correct? It should be text/x-diff or
|
||||
text/x-patch or at least text/plain and not application/octet-stream.
|
||||
@item
|
||||
If the patch fixes a bug, did you provide a verbose analysis of the bug?
|
||||
|
||||
If the patch fixes a bug, did you provide a verbose analysis of the bug?
|
||||
@item
|
||||
If the patch fixes a bug, did you provide enough information, including
|
||||
a sample, so the bug can be reproduced and the fix can be verified?
|
||||
Note please do not attach samples >100k to mails but rather provide a
|
||||
URL, you can upload to ftp://upload.ffmpeg.org
|
||||
|
||||
If the patch fixes a bug, did you provide enough information, including
|
||||
a sample, so the bug can be reproduced and the fix can be verified?
|
||||
Note please do not attach samples >100k to mails but rather provide a
|
||||
URL, you can upload to ftp://upload.ffmpeg.org
|
||||
@item
|
||||
Did you provide a verbose summary about what the patch does change?
|
||||
|
||||
Did you provide a verbose summary about what the patch does change?
|
||||
@item
|
||||
Did you provide a verbose explanation why it changes things like it does?
|
||||
|
||||
Did you provide a verbose explanation why it changes things like it does?
|
||||
@item
|
||||
Did you provide a verbose summary of the user visible advantages and
|
||||
disadvantages if the patch is applied?
|
||||
|
||||
Did you provide a verbose summary of the user visible advantages and
|
||||
disadvantages if the patch is applied?
|
||||
@item
|
||||
Did you provide an example so we can verify the new feature added by the
|
||||
patch easily?
|
||||
|
||||
Did you provide an example so we can verify the new feature added by the
|
||||
patch easily?
|
||||
@item
|
||||
If you added a new file, did you insert a license header? It should be
|
||||
taken from FFmpeg, not randomly copied and pasted from somewhere else.
|
||||
|
||||
If you added a new file, did you insert a license header? It should be
|
||||
taken from FFmpeg, not randomly copied and pasted from somewhere else.
|
||||
@item
|
||||
You should maintain alphabetical order in alphabetically ordered lists as
|
||||
long as doing so does not break API/ABI compatibility.
|
||||
|
||||
You should maintain alphabetical order in alphabetically ordered lists as
|
||||
long as doing so does not break API/ABI compatibility.
|
||||
@item
|
||||
Lines with similar content should be aligned vertically when doing so
|
||||
improves readability.
|
||||
|
||||
Lines with similar content should be aligned vertically when doing so
|
||||
improves readability.
|
||||
@item
|
||||
Consider to add a regression test for your code.
|
||||
|
||||
Consider to add a regression test for your code.
|
||||
@item
|
||||
If you added YASM code please check that things still work with --disable-yasm
|
||||
|
||||
@item
|
||||
Make sure you check the return values of function and return appropriate
|
||||
error codes. Especially memory allocation functions like @code{av_malloc()}
|
||||
are notoriously left unchecked, which is a serious problem.
|
||||
|
||||
@item
|
||||
Test your code with valgrind and or Address Sanitizer to ensure it's free
|
||||
of leaks, out of array accesses, etc.
|
||||
If you added YASM code please check that things still work with --disable-yasm
|
||||
@end enumerate
|
||||
|
||||
@section Patch review process
|
||||
@@ -622,179 +410,37 @@ After a patch is approved it will be committed to the repository.
|
||||
We will review all submitted patches, but sometimes we are quite busy so
|
||||
especially for large patches this can take several weeks.
|
||||
|
||||
If you feel that the review process is too slow and you are willing to try to
|
||||
take over maintainership of the area of code you change then just clone
|
||||
git master and maintain the area of code there. We will merge each area from
|
||||
where its best maintained.
|
||||
|
||||
When resubmitting patches, please do not make any significant changes
|
||||
not related to the comments received during review. Such patches will
|
||||
be rejected. Instead, submit significant changes or new features as
|
||||
be rejected. Instead, submit significant changes or new features as
|
||||
separate patches.
|
||||
|
||||
@anchor{Regression tests}
|
||||
@section Regression tests
|
||||
|
||||
Before submitting a patch (or committing to the repository), you should at least
|
||||
test that you did not break anything.
|
||||
|
||||
Running 'make fate' accomplishes this, please see @url{fate.html} for details.
|
||||
The regression tests build a synthetic video stream and a synthetic
|
||||
audio stream. These are then encoded and decoded with all codecs or
|
||||
formats. The CRC (or MD5) of each generated file is recorded in a
|
||||
result file. A 'diff' is launched to compare the reference results and
|
||||
the result file. The output is checked immediately after each test
|
||||
has run.
|
||||
|
||||
The regression tests then go on to test the FFserver code with a
|
||||
limited set of streams. It is important that this step runs correctly
|
||||
as well.
|
||||
|
||||
Run 'make test' to test all the codecs and formats. Commands like
|
||||
'make regtest-mpeg2' can be used to run a single test. By default,
|
||||
make will abort if any test fails. To run all tests regardless,
|
||||
use make -k. To get a more verbose output, use 'make V=1 test' or
|
||||
'make V=2 test'.
|
||||
|
||||
Run 'make fulltest' to test all the codecs, formats and FFserver.
|
||||
|
||||
[Of course, some patches may change the results of the regression tests. In
|
||||
this case, the reference results of the regression tests shall be modified
|
||||
accordingly].
|
||||
|
||||
@subsection Adding files to the fate-suite dataset
|
||||
|
||||
When there is no muxer or encoder available to generate test media for a
|
||||
specific test then the media has to be inlcuded in the fate-suite.
|
||||
First please make sure that the sample file is as small as possible to test the
|
||||
respective decoder or demuxer sufficiently. Large files increase network
|
||||
bandwidth and disk space requirements.
|
||||
Once you have a working fate test and fate sample, provide in the commit
|
||||
message or introductionary message for the patch series that you post to
|
||||
the ffmpeg-devel mailing list, a direct link to download the sample media.
|
||||
|
||||
|
||||
@subsection Visualizing Test Coverage
|
||||
|
||||
The FFmpeg build system allows visualizing the test coverage in an easy
|
||||
manner with the coverage tools @code{gcov}/@code{lcov}. This involves
|
||||
the following steps:
|
||||
|
||||
@enumerate
|
||||
@item
|
||||
Configure to compile with instrumentation enabled:
|
||||
@code{configure --toolchain=gcov}.
|
||||
|
||||
@item
|
||||
Run your test case, either manually or via FATE. This can be either
|
||||
the full FATE regression suite, or any arbitrary invocation of any
|
||||
front-end tool provided by FFmpeg, in any combination.
|
||||
|
||||
@item
|
||||
Run @code{make lcov} to generate coverage data in HTML format.
|
||||
|
||||
@item
|
||||
View @code{lcov/index.html} in your preferred HTML viewer.
|
||||
@end enumerate
|
||||
|
||||
You can use the command @code{make lcov-reset} to reset the coverage
|
||||
measurements. You will need to rerun @code{make lcov} after running a
|
||||
new test.
|
||||
|
||||
@subsection Using Valgrind
|
||||
|
||||
The configure script provides a shortcut for using valgrind to spot bugs
|
||||
related to memory handling. Just add the option
|
||||
@code{--toolchain=valgrind-memcheck} or @code{--toolchain=valgrind-massif}
|
||||
to your configure line, and reasonable defaults will be set for running
|
||||
FATE under the supervision of either the @strong{memcheck} or the
|
||||
@strong{massif} tool of the valgrind suite.
|
||||
|
||||
In case you need finer control over how valgrind is invoked, use the
|
||||
@code{--target-exec='valgrind <your_custom_valgrind_options>} option in
|
||||
your configure line instead.
|
||||
|
||||
@anchor{Release process}
|
||||
@section Release process
|
||||
|
||||
FFmpeg maintains a set of @strong{release branches}, which are the
|
||||
recommended deliverable for system integrators and distributors (such as
|
||||
Linux distributions, etc.). At regular times, a @strong{release
|
||||
manager} prepares, tests and publishes tarballs on the
|
||||
@url{http://ffmpeg.org} website.
|
||||
|
||||
There are two kinds of releases:
|
||||
|
||||
@enumerate
|
||||
@item
|
||||
@strong{Major releases} always include the latest and greatest
|
||||
features and functionality.
|
||||
|
||||
@item
|
||||
@strong{Point releases} are cut from @strong{release} branches,
|
||||
which are named @code{release/X}, with @code{X} being the release
|
||||
version number.
|
||||
@end enumerate
|
||||
|
||||
Note that we promise to our users that shared libraries from any FFmpeg
|
||||
release never break programs that have been @strong{compiled} against
|
||||
previous versions of @strong{the same release series} in any case!
|
||||
|
||||
However, from time to time, we do make API changes that require adaptations
|
||||
in applications. Such changes are only allowed in (new) major releases and
|
||||
require further steps such as bumping library version numbers and/or
|
||||
adjustments to the symbol versioning file. Please discuss such changes
|
||||
on the @strong{ffmpeg-devel} mailing list in time to allow forward planning.
|
||||
|
||||
@anchor{Criteria for Point Releases}
|
||||
@subsection Criteria for Point Releases
|
||||
|
||||
Changes that match the following criteria are valid candidates for
|
||||
inclusion into a point release:
|
||||
|
||||
@enumerate
|
||||
@item
|
||||
Fixes a security issue, preferably identified by a @strong{CVE
|
||||
number} issued by @url{http://cve.mitre.org/}.
|
||||
|
||||
@item
|
||||
Fixes a documented bug in @url{https://trac.ffmpeg.org}.
|
||||
|
||||
@item
|
||||
Improves the included documentation.
|
||||
|
||||
@item
|
||||
Retains both source code and binary compatibility with previous
|
||||
point releases of the same release branch.
|
||||
@end enumerate
|
||||
|
||||
The order for checking the rules is (1 OR 2 OR 3) AND 4.
|
||||
|
||||
|
||||
@subsection Release Checklist
|
||||
|
||||
The release process involves the following steps:
|
||||
|
||||
@enumerate
|
||||
@item
|
||||
Ensure that the @file{RELEASE} file contains the version number for
|
||||
the upcoming release.
|
||||
|
||||
@item
|
||||
Add the release at @url{https://trac.ffmpeg.org/admin/ticket/versions}.
|
||||
|
||||
@item
|
||||
Announce the intent to do a release to the mailing list.
|
||||
|
||||
@item
|
||||
Make sure all relevant security fixes have been backported. See
|
||||
@url{https://ffmpeg.org/security.html}.
|
||||
|
||||
@item
|
||||
Ensure that the FATE regression suite still passes in the release
|
||||
branch on at least @strong{i386} and @strong{amd64}
|
||||
(cf. @ref{Regression tests}).
|
||||
|
||||
@item
|
||||
Prepare the release tarballs in @code{bz2} and @code{gz} formats, and
|
||||
supplementing files that contain @code{gpg} signatures
|
||||
|
||||
@item
|
||||
Publish the tarballs at @url{http://ffmpeg.org/releases}. Create and
|
||||
push an annotated tag in the form @code{nX}, with @code{X}
|
||||
containing the version number.
|
||||
|
||||
@item
|
||||
Propose and send a patch to the @strong{ffmpeg-devel} mailing list
|
||||
with a news entry for the website.
|
||||
|
||||
@item
|
||||
Publish the news entry.
|
||||
|
||||
@item
|
||||
Send announcement to the mailing list.
|
||||
@end enumerate
|
||||
|
||||
@bye
|
||||
|
||||
@@ -1,25 +0,0 @@
|
||||
@chapter Device Options
|
||||
@c man begin DEVICE OPTIONS
|
||||
|
||||
The libavdevice library provides the same interface as
|
||||
libavformat. Namely, an input device is considered like a demuxer, and
|
||||
an output device like a muxer, and the interface and generic device
|
||||
options are the same provided by libavformat (see the ffmpeg-formats
|
||||
manual).
|
||||
|
||||
In addition each input or output device may support so-called private
|
||||
options, which are specific for that component.
|
||||
|
||||
Options may be set by specifying -@var{option} @var{value} in the
|
||||
FFmpeg tools, or by setting the value explicitly in the device
|
||||
@code{AVFormatContext} options or using the @file{libavutil/opt.h} API
|
||||
for programmatic use.
|
||||
|
||||
@c man end DEVICE OPTIONS
|
||||
|
||||
@ifclear config-writeonly
|
||||
@include indevs.texi
|
||||
@end ifclear
|
||||
@ifclear config-readonly
|
||||
@include outdevs.texi
|
||||
@end ifclear
|
||||
@@ -1,13 +0,0 @@
|
||||
#!/bin/sh
|
||||
|
||||
SRC_PATH="${1}"
|
||||
DOXYFILE="${2}"
|
||||
DOXYGEN="${3}"
|
||||
|
||||
shift 3
|
||||
|
||||
$DOXYGEN - <<EOF
|
||||
@INCLUDE = ${DOXYFILE}
|
||||
INPUT = $@
|
||||
EXAMPLE_PATH = ${SRC_PATH}/doc/examples
|
||||
EOF
|
||||
1691
doc/encoders.texi
1691
doc/encoders.texi
File diff suppressed because it is too large
Load Diff
174
doc/errno.txt
174
doc/errno.txt
@@ -1,174 +0,0 @@
|
||||
The following table lists most error codes found in various operating
|
||||
systems supported by FFmpeg.
|
||||
|
||||
OS
|
||||
Code Std F LBMWwb Text (YMMV)
|
||||
|
||||
E2BIG POSIX ++++++ Argument list too long
|
||||
EACCES POSIX ++++++ Permission denied
|
||||
EADDRINUSE POSIX +++..+ Address in use
|
||||
EADDRNOTAVAIL POSIX +++..+ Cannot assign requested address
|
||||
EADV +..... Advertise error
|
||||
EAFNOSUPPORT POSIX +++..+ Address family not supported
|
||||
EAGAIN POSIX + ++++++ Resource temporarily unavailable
|
||||
EALREADY POSIX +++..+ Operation already in progress
|
||||
EAUTH .++... Authentication error
|
||||
EBADARCH ..+... Bad CPU type in executable
|
||||
EBADE +..... Invalid exchange
|
||||
EBADEXEC ..+... Bad executable
|
||||
EBADF POSIX ++++++ Bad file descriptor
|
||||
EBADFD +..... File descriptor in bad state
|
||||
EBADMACHO ..+... Malformed Macho file
|
||||
EBADMSG POSIX ++4... Bad message
|
||||
EBADR +..... Invalid request descriptor
|
||||
EBADRPC .++... RPC struct is bad
|
||||
EBADRQC +..... Invalid request code
|
||||
EBADSLT +..... Invalid slot
|
||||
EBFONT +..... Bad font file format
|
||||
EBUSY POSIX - ++++++ Device or resource busy
|
||||
ECANCELED POSIX +++... Operation canceled
|
||||
ECHILD POSIX ++++++ No child processes
|
||||
ECHRNG +..... Channel number out of range
|
||||
ECOMM +..... Communication error on send
|
||||
ECONNABORTED POSIX +++..+ Software caused connection abort
|
||||
ECONNREFUSED POSIX - +++ss+ Connection refused
|
||||
ECONNRESET POSIX +++..+ Connection reset
|
||||
EDEADLK POSIX ++++++ Resource deadlock avoided
|
||||
EDEADLOCK +..++. File locking deadlock error
|
||||
EDESTADDRREQ POSIX +++... Destination address required
|
||||
EDEVERR ..+... Device error
|
||||
EDOM C89 - ++++++ Numerical argument out of domain
|
||||
EDOOFUS .F.... Programming error
|
||||
EDOTDOT +..... RFS specific error
|
||||
EDQUOT POSIX +++... Disc quota exceeded
|
||||
EEXIST POSIX ++++++ File exists
|
||||
EFAULT POSIX - ++++++ Bad address
|
||||
EFBIG POSIX - ++++++ File too large
|
||||
EFTYPE .++... Inappropriate file type or format
|
||||
EHOSTDOWN +++... Host is down
|
||||
EHOSTUNREACH POSIX +++..+ No route to host
|
||||
EHWPOISON +..... Memory page has hardware error
|
||||
EIDRM POSIX +++... Identifier removed
|
||||
EILSEQ C99 ++++++ Illegal byte sequence
|
||||
EINPROGRESS POSIX - +++ss+ Operation in progress
|
||||
EINTR POSIX - ++++++ Interrupted system call
|
||||
EINVAL POSIX + ++++++ Invalid argument
|
||||
EIO POSIX + ++++++ I/O error
|
||||
EISCONN POSIX +++..+ Socket is already connected
|
||||
EISDIR POSIX ++++++ Is a directory
|
||||
EISNAM +..... Is a named type file
|
||||
EKEYEXPIRED +..... Key has expired
|
||||
EKEYREJECTED +..... Key was rejected by service
|
||||
EKEYREVOKED +..... Key has been revoked
|
||||
EL2HLT +..... Level 2 halted
|
||||
EL2NSYNC +..... Level 2 not synchronized
|
||||
EL3HLT +..... Level 3 halted
|
||||
EL3RST +..... Level 3 reset
|
||||
ELIBACC +..... Can not access a needed shared library
|
||||
ELIBBAD +..... Accessing a corrupted shared library
|
||||
ELIBEXEC +..... Cannot exec a shared library directly
|
||||
ELIBMAX +..... Too many shared libraries
|
||||
ELIBSCN +..... .lib section in a.out corrupted
|
||||
ELNRNG +..... Link number out of range
|
||||
ELOOP POSIX +++..+ Too many levels of symbolic links
|
||||
EMEDIUMTYPE +..... Wrong medium type
|
||||
EMFILE POSIX ++++++ Too many open files
|
||||
EMLINK POSIX ++++++ Too many links
|
||||
EMSGSIZE POSIX +++..+ Message too long
|
||||
EMULTIHOP POSIX ++4... Multihop attempted
|
||||
ENAMETOOLONG POSIX - ++++++ Filen ame too long
|
||||
ENAVAIL +..... No XENIX semaphores available
|
||||
ENEEDAUTH .++... Need authenticator
|
||||
ENETDOWN POSIX +++..+ Network is down
|
||||
ENETRESET SUSv3 +++..+ Network dropped connection on reset
|
||||
ENETUNREACH POSIX +++..+ Network unreachable
|
||||
ENFILE POSIX ++++++ Too many open files in system
|
||||
ENOANO +..... No anode
|
||||
ENOATTR .++... Attribute not found
|
||||
ENOBUFS POSIX - +++..+ No buffer space available
|
||||
ENOCSI +..... No CSI structure available
|
||||
ENODATA XSR +N4... No message available
|
||||
ENODEV POSIX - ++++++ No such device
|
||||
ENOENT POSIX - ++++++ No such file or directory
|
||||
ENOEXEC POSIX ++++++ Exec format error
|
||||
ENOFILE ...++. No such file or directory
|
||||
ENOKEY +..... Required key not available
|
||||
ENOLCK POSIX ++++++ No locks available
|
||||
ENOLINK POSIX ++4... Link has been severed
|
||||
ENOMEDIUM +..... No medium found
|
||||
ENOMEM POSIX ++++++ Not enough space
|
||||
ENOMSG POSIX +++..+ No message of desired type
|
||||
ENONET +..... Machine is not on the network
|
||||
ENOPKG +..... Package not installed
|
||||
ENOPROTOOPT POSIX +++..+ Protocol not available
|
||||
ENOSPC POSIX ++++++ No space left on device
|
||||
ENOSR XSR +N4... No STREAM resources
|
||||
ENOSTR XSR +N4... Not a STREAM
|
||||
ENOSYS POSIX + ++++++ Function not implemented
|
||||
ENOTBLK +++... Block device required
|
||||
ENOTCONN POSIX +++..+ Socket is not connected
|
||||
ENOTDIR POSIX ++++++ Not a directory
|
||||
ENOTEMPTY POSIX ++++++ Directory not empty
|
||||
ENOTNAM +..... Not a XENIX named type file
|
||||
ENOTRECOVERABLE SUSv4 - +..... State not recoverable
|
||||
ENOTSOCK POSIX +++..+ Socket operation on non-socket
|
||||
ENOTSUP POSIX +++... Operation not supported
|
||||
ENOTTY POSIX ++++++ Inappropriate I/O control operation
|
||||
ENOTUNIQ +..... Name not unique on network
|
||||
ENXIO POSIX ++++++ No such device or address
|
||||
EOPNOTSUPP POSIX +++..+ Operation not supported (on socket)
|
||||
EOVERFLOW POSIX +++..+ Value too large to be stored in data type
|
||||
EOWNERDEAD SUSv4 +..... Owner died
|
||||
EPERM POSIX - ++++++ Operation not permitted
|
||||
EPFNOSUPPORT +++..+ Protocol family not supported
|
||||
EPIPE POSIX - ++++++ Broken pipe
|
||||
EPROCLIM .++... Too many processes
|
||||
EPROCUNAVAIL .++... Bad procedure for program
|
||||
EPROGMISMATCH .++... Program version wrong
|
||||
EPROGUNAVAIL .++... RPC prog. not avail
|
||||
EPROTO POSIX ++4... Protocol error
|
||||
EPROTONOSUPPORT POSIX - +++ss+ Protocol not supported
|
||||
EPROTOTYPE POSIX +++..+ Protocol wrong type for socket
|
||||
EPWROFF ..+... Device power is off
|
||||
ERANGE C89 - ++++++ Result too large
|
||||
EREMCHG +..... Remote address changed
|
||||
EREMOTE +++... Object is remote
|
||||
EREMOTEIO +..... Remote I/O error
|
||||
ERESTART +..... Interrupted system call should be restarted
|
||||
ERFKILL +..... Operation not possible due to RF-kill
|
||||
EROFS POSIX ++++++ Read-only file system
|
||||
ERPCMISMATCH .++... RPC version wrong
|
||||
ESHLIBVERS ..+... Shared library version mismatch
|
||||
ESHUTDOWN +++..+ Cannot send after socket shutdown
|
||||
ESOCKTNOSUPPORT +++... Socket type not supported
|
||||
ESPIPE POSIX ++++++ Illegal seek
|
||||
ESRCH POSIX ++++++ No such process
|
||||
ESRMNT +..... Srmount error
|
||||
ESTALE POSIX +++..+ Stale NFS file handle
|
||||
ESTRPIPE +..... Streams pipe error
|
||||
ETIME XSR +N4... Stream ioctl timeout
|
||||
ETIMEDOUT POSIX - +++ss+ Connection timed out
|
||||
ETOOMANYREFS +++... Too many references: cannot splice
|
||||
ETXTBSY POSIX +++... Text file busy
|
||||
EUCLEAN +..... Structure needs cleaning
|
||||
EUNATCH +..... Protocol driver not attached
|
||||
EUSERS +++... Too many users
|
||||
EWOULDBLOCK POSIX +++..+ Operation would block
|
||||
EXDEV POSIX ++++++ Cross-device link
|
||||
EXFULL +..... Exchange full
|
||||
|
||||
Notations:
|
||||
|
||||
F: used in FFmpeg (-: a few times, +: a lot)
|
||||
|
||||
SUSv3: Single Unix Specification, version 3
|
||||
SUSv4: Single Unix Specification, version 4
|
||||
XSR: XSI STREAMS (obsolete)
|
||||
|
||||
OS: availability on some supported operating systems
|
||||
L: GNU/Linux
|
||||
B: BSD (F: FreeBSD, N: NetBSD)
|
||||
M: MacOS X
|
||||
W: Microsoft Windows (s: emulated with winsock, see libavformat/network.h)
|
||||
w: Mingw32 (3.17) and Mingw64 (2.0.1)
|
||||
b: BeOS
|
||||
158
doc/eval.texi
Normal file
158
doc/eval.texi
Normal file
@@ -0,0 +1,158 @@
|
||||
@chapter Expression Evaluation
|
||||
@c man begin EXPRESSION EVALUATION
|
||||
|
||||
When evaluating an arithemetic expression, FFmpeg uses an internal
|
||||
formula evaluator, implemented through the @file{libavutil/eval.h}
|
||||
interface.
|
||||
|
||||
An expression may contain unary, binary operators, constants, and
|
||||
functions.
|
||||
|
||||
Two expressions @var{expr1} and @var{expr2} can be combined to form
|
||||
another expression "@var{expr1};@var{expr2}".
|
||||
@var{expr1} and @var{expr2} are evaluated in turn, and the new
|
||||
expression evaluates to the value of @var{expr2}.
|
||||
|
||||
The following binary operators are available: @code{+}, @code{-},
|
||||
@code{*}, @code{/}, @code{^}.
|
||||
|
||||
The following unary operators are available: @code{+}, @code{-}.
|
||||
|
||||
The following functions are available:
|
||||
@table @option
|
||||
@item sinh(x)
|
||||
@item cosh(x)
|
||||
@item tanh(x)
|
||||
@item sin(x)
|
||||
@item cos(x)
|
||||
@item tan(x)
|
||||
@item atan(x)
|
||||
@item asin(x)
|
||||
@item acos(x)
|
||||
@item exp(x)
|
||||
@item log(x)
|
||||
@item abs(x)
|
||||
@item squish(x)
|
||||
@item gauss(x)
|
||||
@item isnan(x)
|
||||
Return 1.0 if @var{x} is NAN, 0.0 otherwise.
|
||||
|
||||
@item mod(x, y)
|
||||
@item max(x, y)
|
||||
@item min(x, y)
|
||||
@item eq(x, y)
|
||||
@item gte(x, y)
|
||||
@item gt(x, y)
|
||||
@item lte(x, y)
|
||||
@item lt(x, y)
|
||||
@item st(var, expr)
|
||||
Allow to store the value of the expression @var{expr} in an internal
|
||||
variable. @var{var} specifies the number of the variable where to
|
||||
store the value, and it is a value ranging from 0 to 9. The function
|
||||
returns the value stored in the internal variable.
|
||||
|
||||
@item ld(var)
|
||||
Allow to load the value of the internal variable with number
|
||||
@var{var}, which was previosly stored with st(@var{var}, @var{expr}).
|
||||
The function returns the loaded value.
|
||||
|
||||
@item while(cond, expr)
|
||||
Evaluate expression @var{expr} while the expression @var{cond} is
|
||||
non-zero, and returns the value of the last @var{expr} evaluation, or
|
||||
NAN if @var{cond} was always false.
|
||||
|
||||
@item ceil(expr)
|
||||
Round the value of expression @var{expr} upwards to the nearest
|
||||
integer. For example, "ceil(1.5)" is "2.0".
|
||||
|
||||
@item floor(expr)
|
||||
Round the value of expression @var{expr} downwards to the nearest
|
||||
integer. For example, "floor(-1.5)" is "-2.0".
|
||||
|
||||
@item trunc(expr)
|
||||
Round the value of expression @var{expr} towards zero to the nearest
|
||||
integer. For example, "trunc(-1.5)" is "-1.0".
|
||||
|
||||
@item sqrt(expr)
|
||||
Compute the square root of @var{expr}. This is equivalent to
|
||||
"(@var{expr})^.5".
|
||||
|
||||
@item not(expr)
|
||||
Return 1.0 if @var{expr} is zero, 0.0 otherwise.
|
||||
|
||||
@item pow(x, y)
|
||||
Compute the power of @var{x} elevated @var{y}, it is equivalent to
|
||||
"(@var{x})^(@var{y})".
|
||||
@end table
|
||||
|
||||
Note that:
|
||||
|
||||
@code{*} works like AND
|
||||
|
||||
@code{+} works like OR
|
||||
|
||||
thus
|
||||
@example
|
||||
if A then B else C
|
||||
@end example
|
||||
is equivalent to
|
||||
@example
|
||||
A*B + not(A)*C
|
||||
@end example
|
||||
|
||||
In your C code, you can extend the list of unary and binary functions,
|
||||
and define recognized constants, so that they are available for your
|
||||
expressions.
|
||||
|
||||
The evaluator also recognizes the International System number
|
||||
postfixes. If 'i' is appended after the postfix, powers of 2 are used
|
||||
instead of powers of 10. The 'B' postfix multiplies the value for 8,
|
||||
and can be appended after another postfix or used alone. This allows
|
||||
using for example 'KB', 'MiB', 'G' and 'B' as postfix.
|
||||
|
||||
Follows the list of available International System postfixes, with
|
||||
indication of the corresponding powers of 10 and of 2.
|
||||
@table @option
|
||||
@item y
|
||||
-24 / -80
|
||||
@item z
|
||||
-21 / -70
|
||||
@item a
|
||||
-18 / -60
|
||||
@item f
|
||||
-15 / -50
|
||||
@item p
|
||||
-12 / -40
|
||||
@item n
|
||||
-9 / -30
|
||||
@item u
|
||||
-6 / -20
|
||||
@item m
|
||||
-3 / -10
|
||||
@item c
|
||||
-2
|
||||
@item d
|
||||
-1
|
||||
@item h
|
||||
2
|
||||
@item k
|
||||
3 / 10
|
||||
@item K
|
||||
3 / 10
|
||||
@item M
|
||||
6 / 20
|
||||
@item G
|
||||
9 / 30
|
||||
@item T
|
||||
12 / 40
|
||||
@item P
|
||||
15 / 40
|
||||
@item E
|
||||
18 / 50
|
||||
@item Z
|
||||
21 / 60
|
||||
@item Y
|
||||
24 / 70
|
||||
@end table
|
||||
|
||||
@c man end
|
||||
@@ -1,44 +1,21 @@
|
||||
# use pkg-config for getting CFLAGS and LDLIBS
|
||||
FFMPEG_LIBS= libavdevice \
|
||||
libavformat \
|
||||
libavfilter \
|
||||
libavcodec \
|
||||
libswresample \
|
||||
libswscale \
|
||||
libavutil \
|
||||
# use pkg-config for getting CFLAGS abd LDFLAGS
|
||||
FFMPEG_LIBS=libavdevice libavformat libavfilter libavcodec libswscale libavutil
|
||||
CFLAGS+=$(shell pkg-config --cflags $(FFMPEG_LIBS))
|
||||
LDFLAGS+=$(shell pkg-config --libs $(FFMPEG_LIBS))
|
||||
|
||||
CFLAGS += -Wall -g
|
||||
CFLAGS := $(shell pkg-config --cflags $(FFMPEG_LIBS)) $(CFLAGS)
|
||||
LDLIBS := $(shell pkg-config --libs $(FFMPEG_LIBS)) $(LDLIBS)
|
||||
|
||||
EXAMPLES= avio_reading \
|
||||
decoding_encoding \
|
||||
demuxing_decoding \
|
||||
extract_mvs \
|
||||
filtering_video \
|
||||
filtering_audio \
|
||||
metadata \
|
||||
muxing \
|
||||
remuxing \
|
||||
resampling_audio \
|
||||
scaling_video \
|
||||
transcode_aac \
|
||||
transcoding \
|
||||
EXAMPLES=encoding-example muxing-example
|
||||
|
||||
OBJS=$(addsuffix .o,$(EXAMPLES))
|
||||
|
||||
# the following examples make explicit use of the math library
|
||||
avcodec: LDLIBS += -lm
|
||||
decoding_encoding: LDLIBS += -lm
|
||||
muxing: LDLIBS += -lm
|
||||
resampling_audio: LDLIBS += -lm
|
||||
%: %.o
|
||||
$(CC) $< $(LDFLAGS) -o $@
|
||||
|
||||
.phony: all clean-test clean
|
||||
%.o: %.c
|
||||
$(CC) $< $(CFLAGS) -c -o $@
|
||||
|
||||
.phony: all clean
|
||||
|
||||
all: $(OBJS) $(EXAMPLES)
|
||||
|
||||
clean-test:
|
||||
$(RM) test*.pgm test.h264 test.mp2 test.sw test.mpg
|
||||
|
||||
clean: clean-test
|
||||
$(RM) $(EXAMPLES) $(OBJS)
|
||||
clean:
|
||||
rm -rf $(EXAMPLES) $(OBJS)
|
||||
|
||||
@@ -1,23 +0,0 @@
|
||||
FFmpeg examples README
|
||||
----------------------
|
||||
|
||||
Both following use cases rely on pkg-config and make, thus make sure
|
||||
that you have them installed and working on your system.
|
||||
|
||||
|
||||
Method 1: build the installed examples in a generic read/write user directory
|
||||
|
||||
Copy to a read/write user directory and just use "make", it will link
|
||||
to the libraries on your system, assuming the PKG_CONFIG_PATH is
|
||||
correctly configured.
|
||||
|
||||
Method 2: build the examples in-tree
|
||||
|
||||
Assuming you are in the source FFmpeg checkout directory, you need to build
|
||||
FFmpeg (no need to make install in any prefix). Then just run "make examples".
|
||||
This will build the examples using the FFmpeg build system. You can clean those
|
||||
examples using "make examplesclean"
|
||||
|
||||
If you want to try the dedicated Makefile examples (to emulate the first
|
||||
method), go into doc/examples and run a command such as
|
||||
PKG_CONFIG_PATH=pc-uninstalled make.
|
||||
@@ -1,134 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2014 Stefano Sabatini
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* libavformat AVIOContext API example.
|
||||
*
|
||||
* Make libavformat demuxer access media content through a custom
|
||||
* AVIOContext read callback.
|
||||
* @example avio_reading.c
|
||||
*/
|
||||
|
||||
#include <libavcodec/avcodec.h>
|
||||
#include <libavformat/avformat.h>
|
||||
#include <libavformat/avio.h>
|
||||
#include <libavutil/file.h>
|
||||
|
||||
struct buffer_data {
|
||||
uint8_t *ptr;
|
||||
size_t size; ///< size left in the buffer
|
||||
};
|
||||
|
||||
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
|
||||
{
|
||||
struct buffer_data *bd = (struct buffer_data *)opaque;
|
||||
buf_size = FFMIN(buf_size, bd->size);
|
||||
|
||||
printf("ptr:%p size:%zu\n", bd->ptr, bd->size);
|
||||
|
||||
/* copy internal buffer data to buf */
|
||||
memcpy(buf, bd->ptr, buf_size);
|
||||
bd->ptr += buf_size;
|
||||
bd->size -= buf_size;
|
||||
|
||||
return buf_size;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
AVFormatContext *fmt_ctx = NULL;
|
||||
AVIOContext *avio_ctx = NULL;
|
||||
uint8_t *buffer = NULL, *avio_ctx_buffer = NULL;
|
||||
size_t buffer_size, avio_ctx_buffer_size = 4096;
|
||||
char *input_filename = NULL;
|
||||
int ret = 0;
|
||||
struct buffer_data bd = { 0 };
|
||||
|
||||
if (argc != 2) {
|
||||
fprintf(stderr, "usage: %s input_file\n"
|
||||
"API example program to show how to read from a custom buffer "
|
||||
"accessed through AVIOContext.\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
input_filename = argv[1];
|
||||
|
||||
/* register codecs and formats and other lavf/lavc components*/
|
||||
av_register_all();
|
||||
|
||||
/* slurp file content into buffer */
|
||||
ret = av_file_map(input_filename, &buffer, &buffer_size, 0, NULL);
|
||||
if (ret < 0)
|
||||
goto end;
|
||||
|
||||
/* fill opaque structure used by the AVIOContext read callback */
|
||||
bd.ptr = buffer;
|
||||
bd.size = buffer_size;
|
||||
|
||||
if (!(fmt_ctx = avformat_alloc_context())) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
|
||||
avio_ctx_buffer = av_malloc(avio_ctx_buffer_size);
|
||||
if (!avio_ctx_buffer) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
avio_ctx = avio_alloc_context(avio_ctx_buffer, avio_ctx_buffer_size,
|
||||
0, &bd, &read_packet, NULL, NULL);
|
||||
if (!avio_ctx) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
fmt_ctx->pb = avio_ctx;
|
||||
|
||||
ret = avformat_open_input(&fmt_ctx, NULL, NULL, NULL);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not open input\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = avformat_find_stream_info(fmt_ctx, NULL);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not find stream information\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
av_dump_format(fmt_ctx, 0, input_filename, 0);
|
||||
|
||||
end:
|
||||
avformat_close_input(&fmt_ctx);
|
||||
/* note: the internal buffer could have changed, and be != avio_ctx_buffer */
|
||||
if (avio_ctx) {
|
||||
av_freep(&avio_ctx->buffer);
|
||||
av_freep(&avio_ctx);
|
||||
}
|
||||
av_file_unmap(buffer, buffer_size);
|
||||
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -1,665 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2001 Fabrice Bellard
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* libavcodec API use example.
|
||||
*
|
||||
* @example decoding_encoding.c
|
||||
* Note that libavcodec only handles codecs (mpeg, mpeg4, etc...),
|
||||
* not file formats (avi, vob, mp4, mov, mkv, mxf, flv, mpegts, mpegps, etc...). See library 'libavformat' for the
|
||||
* format handling
|
||||
*/
|
||||
|
||||
#include <math.h>
|
||||
|
||||
#include <libavutil/opt.h>
|
||||
#include <libavcodec/avcodec.h>
|
||||
#include <libavutil/channel_layout.h>
|
||||
#include <libavutil/common.h>
|
||||
#include <libavutil/imgutils.h>
|
||||
#include <libavutil/mathematics.h>
|
||||
#include <libavutil/samplefmt.h>
|
||||
|
||||
#define INBUF_SIZE 4096
|
||||
#define AUDIO_INBUF_SIZE 20480
|
||||
#define AUDIO_REFILL_THRESH 4096
|
||||
|
||||
/* check that a given sample format is supported by the encoder */
|
||||
static int check_sample_fmt(AVCodec *codec, enum AVSampleFormat sample_fmt)
|
||||
{
|
||||
const enum AVSampleFormat *p = codec->sample_fmts;
|
||||
|
||||
while (*p != AV_SAMPLE_FMT_NONE) {
|
||||
if (*p == sample_fmt)
|
||||
return 1;
|
||||
p++;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* just pick the highest supported samplerate */
|
||||
static int select_sample_rate(AVCodec *codec)
|
||||
{
|
||||
const int *p;
|
||||
int best_samplerate = 0;
|
||||
|
||||
if (!codec->supported_samplerates)
|
||||
return 44100;
|
||||
|
||||
p = codec->supported_samplerates;
|
||||
while (*p) {
|
||||
best_samplerate = FFMAX(*p, best_samplerate);
|
||||
p++;
|
||||
}
|
||||
return best_samplerate;
|
||||
}
|
||||
|
||||
/* select layout with the highest channel count */
|
||||
static int select_channel_layout(AVCodec *codec)
|
||||
{
|
||||
const uint64_t *p;
|
||||
uint64_t best_ch_layout = 0;
|
||||
int best_nb_channels = 0;
|
||||
|
||||
if (!codec->channel_layouts)
|
||||
return AV_CH_LAYOUT_STEREO;
|
||||
|
||||
p = codec->channel_layouts;
|
||||
while (*p) {
|
||||
int nb_channels = av_get_channel_layout_nb_channels(*p);
|
||||
|
||||
if (nb_channels > best_nb_channels) {
|
||||
best_ch_layout = *p;
|
||||
best_nb_channels = nb_channels;
|
||||
}
|
||||
p++;
|
||||
}
|
||||
return best_ch_layout;
|
||||
}
|
||||
|
||||
/*
|
||||
* Audio encoding example
|
||||
*/
|
||||
static void audio_encode_example(const char *filename)
|
||||
{
|
||||
AVCodec *codec;
|
||||
AVCodecContext *c= NULL;
|
||||
AVFrame *frame;
|
||||
AVPacket pkt;
|
||||
int i, j, k, ret, got_output;
|
||||
int buffer_size;
|
||||
FILE *f;
|
||||
uint16_t *samples;
|
||||
float t, tincr;
|
||||
|
||||
printf("Encode audio file %s\n", filename);
|
||||
|
||||
/* find the MP2 encoder */
|
||||
codec = avcodec_find_encoder(AV_CODEC_ID_MP2);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "Codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c = avcodec_alloc_context3(codec);
|
||||
if (!c) {
|
||||
fprintf(stderr, "Could not allocate audio codec context\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* put sample parameters */
|
||||
c->bit_rate = 64000;
|
||||
|
||||
/* check that the encoder supports s16 pcm input */
|
||||
c->sample_fmt = AV_SAMPLE_FMT_S16;
|
||||
if (!check_sample_fmt(codec, c->sample_fmt)) {
|
||||
fprintf(stderr, "Encoder does not support sample format %s",
|
||||
av_get_sample_fmt_name(c->sample_fmt));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* select other audio parameters supported by the encoder */
|
||||
c->sample_rate = select_sample_rate(codec);
|
||||
c->channel_layout = select_channel_layout(codec);
|
||||
c->channels = av_get_channel_layout_nb_channels(c->channel_layout);
|
||||
|
||||
/* open it */
|
||||
if (avcodec_open2(c, codec, NULL) < 0) {
|
||||
fprintf(stderr, "Could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
f = fopen(filename, "wb");
|
||||
if (!f) {
|
||||
fprintf(stderr, "Could not open %s\n", filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* frame containing input raw audio */
|
||||
frame = av_frame_alloc();
|
||||
if (!frame) {
|
||||
fprintf(stderr, "Could not allocate audio frame\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
frame->nb_samples = c->frame_size;
|
||||
frame->format = c->sample_fmt;
|
||||
frame->channel_layout = c->channel_layout;
|
||||
|
||||
/* the codec gives us the frame size, in samples,
|
||||
* we calculate the size of the samples buffer in bytes */
|
||||
buffer_size = av_samples_get_buffer_size(NULL, c->channels, c->frame_size,
|
||||
c->sample_fmt, 0);
|
||||
if (buffer_size < 0) {
|
||||
fprintf(stderr, "Could not get sample buffer size\n");
|
||||
exit(1);
|
||||
}
|
||||
samples = av_malloc(buffer_size);
|
||||
if (!samples) {
|
||||
fprintf(stderr, "Could not allocate %d bytes for samples buffer\n",
|
||||
buffer_size);
|
||||
exit(1);
|
||||
}
|
||||
/* setup the data pointers in the AVFrame */
|
||||
ret = avcodec_fill_audio_frame(frame, c->channels, c->sample_fmt,
|
||||
(const uint8_t*)samples, buffer_size, 0);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not setup audio frame\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* encode a single tone sound */
|
||||
t = 0;
|
||||
tincr = 2 * M_PI * 440.0 / c->sample_rate;
|
||||
for (i = 0; i < 200; i++) {
|
||||
av_init_packet(&pkt);
|
||||
pkt.data = NULL; // packet data will be allocated by the encoder
|
||||
pkt.size = 0;
|
||||
|
||||
for (j = 0; j < c->frame_size; j++) {
|
||||
samples[2*j] = (int)(sin(t) * 10000);
|
||||
|
||||
for (k = 1; k < c->channels; k++)
|
||||
samples[2*j + k] = samples[2*j];
|
||||
t += tincr;
|
||||
}
|
||||
/* encode the samples */
|
||||
ret = avcodec_encode_audio2(c, &pkt, frame, &got_output);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error encoding audio frame\n");
|
||||
exit(1);
|
||||
}
|
||||
if (got_output) {
|
||||
fwrite(pkt.data, 1, pkt.size, f);
|
||||
av_free_packet(&pkt);
|
||||
}
|
||||
}
|
||||
|
||||
/* get the delayed frames */
|
||||
for (got_output = 1; got_output; i++) {
|
||||
ret = avcodec_encode_audio2(c, &pkt, NULL, &got_output);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error encoding frame\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (got_output) {
|
||||
fwrite(pkt.data, 1, pkt.size, f);
|
||||
av_free_packet(&pkt);
|
||||
}
|
||||
}
|
||||
fclose(f);
|
||||
|
||||
av_freep(&samples);
|
||||
av_frame_free(&frame);
|
||||
avcodec_close(c);
|
||||
av_free(c);
|
||||
}
|
||||
|
||||
/*
|
||||
* Audio decoding.
|
||||
*/
|
||||
static void audio_decode_example(const char *outfilename, const char *filename)
|
||||
{
|
||||
AVCodec *codec;
|
||||
AVCodecContext *c= NULL;
|
||||
int len;
|
||||
FILE *f, *outfile;
|
||||
uint8_t inbuf[AUDIO_INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
|
||||
AVPacket avpkt;
|
||||
AVFrame *decoded_frame = NULL;
|
||||
|
||||
av_init_packet(&avpkt);
|
||||
|
||||
printf("Decode audio file %s to %s\n", filename, outfilename);
|
||||
|
||||
/* find the mpeg audio decoder */
|
||||
codec = avcodec_find_decoder(AV_CODEC_ID_MP2);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "Codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c = avcodec_alloc_context3(codec);
|
||||
if (!c) {
|
||||
fprintf(stderr, "Could not allocate audio codec context\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* open it */
|
||||
if (avcodec_open2(c, codec, NULL) < 0) {
|
||||
fprintf(stderr, "Could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
f = fopen(filename, "rb");
|
||||
if (!f) {
|
||||
fprintf(stderr, "Could not open %s\n", filename);
|
||||
exit(1);
|
||||
}
|
||||
outfile = fopen(outfilename, "wb");
|
||||
if (!outfile) {
|
||||
av_free(c);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* decode until eof */
|
||||
avpkt.data = inbuf;
|
||||
avpkt.size = fread(inbuf, 1, AUDIO_INBUF_SIZE, f);
|
||||
|
||||
while (avpkt.size > 0) {
|
||||
int i, ch;
|
||||
int got_frame = 0;
|
||||
|
||||
if (!decoded_frame) {
|
||||
if (!(decoded_frame = av_frame_alloc())) {
|
||||
fprintf(stderr, "Could not allocate audio frame\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
len = avcodec_decode_audio4(c, decoded_frame, &got_frame, &avpkt);
|
||||
if (len < 0) {
|
||||
fprintf(stderr, "Error while decoding\n");
|
||||
exit(1);
|
||||
}
|
||||
if (got_frame) {
|
||||
/* if a frame has been decoded, output it */
|
||||
int data_size = av_get_bytes_per_sample(c->sample_fmt);
|
||||
if (data_size < 0) {
|
||||
/* This should not occur, checking just for paranoia */
|
||||
fprintf(stderr, "Failed to calculate data size\n");
|
||||
exit(1);
|
||||
}
|
||||
for (i=0; i<decoded_frame->nb_samples; i++)
|
||||
for (ch=0; ch<c->channels; ch++)
|
||||
fwrite(decoded_frame->data[ch] + data_size*i, 1, data_size, outfile);
|
||||
}
|
||||
avpkt.size -= len;
|
||||
avpkt.data += len;
|
||||
avpkt.dts =
|
||||
avpkt.pts = AV_NOPTS_VALUE;
|
||||
if (avpkt.size < AUDIO_REFILL_THRESH) {
|
||||
/* Refill the input buffer, to avoid trying to decode
|
||||
* incomplete frames. Instead of this, one could also use
|
||||
* a parser, or use a proper container format through
|
||||
* libavformat. */
|
||||
memmove(inbuf, avpkt.data, avpkt.size);
|
||||
avpkt.data = inbuf;
|
||||
len = fread(avpkt.data + avpkt.size, 1,
|
||||
AUDIO_INBUF_SIZE - avpkt.size, f);
|
||||
if (len > 0)
|
||||
avpkt.size += len;
|
||||
}
|
||||
}
|
||||
|
||||
fclose(outfile);
|
||||
fclose(f);
|
||||
|
||||
avcodec_close(c);
|
||||
av_free(c);
|
||||
av_frame_free(&decoded_frame);
|
||||
}
|
||||
|
||||
/*
|
||||
* Video encoding example
|
||||
*/
|
||||
static void video_encode_example(const char *filename, int codec_id)
|
||||
{
|
||||
AVCodec *codec;
|
||||
AVCodecContext *c= NULL;
|
||||
int i, ret, x, y, got_output;
|
||||
FILE *f;
|
||||
AVFrame *frame;
|
||||
AVPacket pkt;
|
||||
uint8_t endcode[] = { 0, 0, 1, 0xb7 };
|
||||
|
||||
printf("Encode video file %s\n", filename);
|
||||
|
||||
/* find the mpeg1 video encoder */
|
||||
codec = avcodec_find_encoder(codec_id);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "Codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c = avcodec_alloc_context3(codec);
|
||||
if (!c) {
|
||||
fprintf(stderr, "Could not allocate video codec context\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* put sample parameters */
|
||||
c->bit_rate = 400000;
|
||||
/* resolution must be a multiple of two */
|
||||
c->width = 352;
|
||||
c->height = 288;
|
||||
/* frames per second */
|
||||
c->time_base = (AVRational){1,25};
|
||||
/* emit one intra frame every ten frames
|
||||
* check frame pict_type before passing frame
|
||||
* to encoder, if frame->pict_type is AV_PICTURE_TYPE_I
|
||||
* then gop_size is ignored and the output of encoder
|
||||
* will always be I frame irrespective to gop_size
|
||||
*/
|
||||
c->gop_size = 10;
|
||||
c->max_b_frames = 1;
|
||||
c->pix_fmt = AV_PIX_FMT_YUV420P;
|
||||
|
||||
if (codec_id == AV_CODEC_ID_H264)
|
||||
av_opt_set(c->priv_data, "preset", "slow", 0);
|
||||
|
||||
/* open it */
|
||||
if (avcodec_open2(c, codec, NULL) < 0) {
|
||||
fprintf(stderr, "Could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
f = fopen(filename, "wb");
|
||||
if (!f) {
|
||||
fprintf(stderr, "Could not open %s\n", filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
frame = av_frame_alloc();
|
||||
if (!frame) {
|
||||
fprintf(stderr, "Could not allocate video frame\n");
|
||||
exit(1);
|
||||
}
|
||||
frame->format = c->pix_fmt;
|
||||
frame->width = c->width;
|
||||
frame->height = c->height;
|
||||
|
||||
/* the image can be allocated by any means and av_image_alloc() is
|
||||
* just the most convenient way if av_malloc() is to be used */
|
||||
ret = av_image_alloc(frame->data, frame->linesize, c->width, c->height,
|
||||
c->pix_fmt, 32);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not allocate raw picture buffer\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* encode 1 second of video */
|
||||
for (i = 0; i < 25; i++) {
|
||||
av_init_packet(&pkt);
|
||||
pkt.data = NULL; // packet data will be allocated by the encoder
|
||||
pkt.size = 0;
|
||||
|
||||
fflush(stdout);
|
||||
/* prepare a dummy image */
|
||||
/* Y */
|
||||
for (y = 0; y < c->height; y++) {
|
||||
for (x = 0; x < c->width; x++) {
|
||||
frame->data[0][y * frame->linesize[0] + x] = x + y + i * 3;
|
||||
}
|
||||
}
|
||||
|
||||
/* Cb and Cr */
|
||||
for (y = 0; y < c->height/2; y++) {
|
||||
for (x = 0; x < c->width/2; x++) {
|
||||
frame->data[1][y * frame->linesize[1] + x] = 128 + y + i * 2;
|
||||
frame->data[2][y * frame->linesize[2] + x] = 64 + x + i * 5;
|
||||
}
|
||||
}
|
||||
|
||||
frame->pts = i;
|
||||
|
||||
/* encode the image */
|
||||
ret = avcodec_encode_video2(c, &pkt, frame, &got_output);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error encoding frame\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (got_output) {
|
||||
printf("Write frame %3d (size=%5d)\n", i, pkt.size);
|
||||
fwrite(pkt.data, 1, pkt.size, f);
|
||||
av_free_packet(&pkt);
|
||||
}
|
||||
}
|
||||
|
||||
/* get the delayed frames */
|
||||
for (got_output = 1; got_output; i++) {
|
||||
fflush(stdout);
|
||||
|
||||
ret = avcodec_encode_video2(c, &pkt, NULL, &got_output);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error encoding frame\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (got_output) {
|
||||
printf("Write frame %3d (size=%5d)\n", i, pkt.size);
|
||||
fwrite(pkt.data, 1, pkt.size, f);
|
||||
av_free_packet(&pkt);
|
||||
}
|
||||
}
|
||||
|
||||
/* add sequence end code to have a real mpeg file */
|
||||
fwrite(endcode, 1, sizeof(endcode), f);
|
||||
fclose(f);
|
||||
|
||||
avcodec_close(c);
|
||||
av_free(c);
|
||||
av_freep(&frame->data[0]);
|
||||
av_frame_free(&frame);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* Video decoding example
|
||||
*/
|
||||
|
||||
static void pgm_save(unsigned char *buf, int wrap, int xsize, int ysize,
|
||||
char *filename)
|
||||
{
|
||||
FILE *f;
|
||||
int i;
|
||||
|
||||
f = fopen(filename,"w");
|
||||
fprintf(f, "P5\n%d %d\n%d\n", xsize, ysize, 255);
|
||||
for (i = 0; i < ysize; i++)
|
||||
fwrite(buf + i * wrap, 1, xsize, f);
|
||||
fclose(f);
|
||||
}
|
||||
|
||||
static int decode_write_frame(const char *outfilename, AVCodecContext *avctx,
|
||||
AVFrame *frame, int *frame_count, AVPacket *pkt, int last)
|
||||
{
|
||||
int len, got_frame;
|
||||
char buf[1024];
|
||||
|
||||
len = avcodec_decode_video2(avctx, frame, &got_frame, pkt);
|
||||
if (len < 0) {
|
||||
fprintf(stderr, "Error while decoding frame %d\n", *frame_count);
|
||||
return len;
|
||||
}
|
||||
if (got_frame) {
|
||||
printf("Saving %sframe %3d\n", last ? "last " : "", *frame_count);
|
||||
fflush(stdout);
|
||||
|
||||
/* the picture is allocated by the decoder, no need to free it */
|
||||
snprintf(buf, sizeof(buf), outfilename, *frame_count);
|
||||
pgm_save(frame->data[0], frame->linesize[0],
|
||||
avctx->width, avctx->height, buf);
|
||||
(*frame_count)++;
|
||||
}
|
||||
if (pkt->data) {
|
||||
pkt->size -= len;
|
||||
pkt->data += len;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void video_decode_example(const char *outfilename, const char *filename)
|
||||
{
|
||||
AVCodec *codec;
|
||||
AVCodecContext *c= NULL;
|
||||
int frame_count;
|
||||
FILE *f;
|
||||
AVFrame *frame;
|
||||
uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
|
||||
AVPacket avpkt;
|
||||
|
||||
av_init_packet(&avpkt);
|
||||
|
||||
/* set end of buffer to 0 (this ensures that no overreading happens for damaged mpeg streams) */
|
||||
memset(inbuf + INBUF_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
|
||||
|
||||
printf("Decode video file %s to %s\n", filename, outfilename);
|
||||
|
||||
/* find the mpeg1 video decoder */
|
||||
codec = avcodec_find_decoder(AV_CODEC_ID_MPEG1VIDEO);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "Codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c = avcodec_alloc_context3(codec);
|
||||
if (!c) {
|
||||
fprintf(stderr, "Could not allocate video codec context\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if(codec->capabilities&CODEC_CAP_TRUNCATED)
|
||||
c->flags|= CODEC_FLAG_TRUNCATED; /* we do not send complete frames */
|
||||
|
||||
/* For some codecs, such as msmpeg4 and mpeg4, width and height
|
||||
MUST be initialized there because this information is not
|
||||
available in the bitstream. */
|
||||
|
||||
/* open it */
|
||||
if (avcodec_open2(c, codec, NULL) < 0) {
|
||||
fprintf(stderr, "Could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
f = fopen(filename, "rb");
|
||||
if (!f) {
|
||||
fprintf(stderr, "Could not open %s\n", filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
frame = av_frame_alloc();
|
||||
if (!frame) {
|
||||
fprintf(stderr, "Could not allocate video frame\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
frame_count = 0;
|
||||
for (;;) {
|
||||
avpkt.size = fread(inbuf, 1, INBUF_SIZE, f);
|
||||
if (avpkt.size == 0)
|
||||
break;
|
||||
|
||||
/* NOTE1: some codecs are stream based (mpegvideo, mpegaudio)
|
||||
and this is the only method to use them because you cannot
|
||||
know the compressed data size before analysing it.
|
||||
|
||||
BUT some other codecs (msmpeg4, mpeg4) are inherently frame
|
||||
based, so you must call them with all the data for one
|
||||
frame exactly. You must also initialize 'width' and
|
||||
'height' before initializing them. */
|
||||
|
||||
/* NOTE2: some codecs allow the raw parameters (frame size,
|
||||
sample rate) to be changed at any frame. We handle this, so
|
||||
you should also take care of it */
|
||||
|
||||
/* here, we use a stream based decoder (mpeg1video), so we
|
||||
feed decoder and see if it could decode a frame */
|
||||
avpkt.data = inbuf;
|
||||
while (avpkt.size > 0)
|
||||
if (decode_write_frame(outfilename, c, frame, &frame_count, &avpkt, 0) < 0)
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* some codecs, such as MPEG, transmit the I and P frame with a
|
||||
latency of one frame. You must do the following to have a
|
||||
chance to get the last frame of the video */
|
||||
avpkt.data = NULL;
|
||||
avpkt.size = 0;
|
||||
decode_write_frame(outfilename, c, frame, &frame_count, &avpkt, 1);
|
||||
|
||||
fclose(f);
|
||||
|
||||
avcodec_close(c);
|
||||
av_free(c);
|
||||
av_frame_free(&frame);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
const char *output_type;
|
||||
|
||||
/* register all the codecs */
|
||||
avcodec_register_all();
|
||||
|
||||
if (argc < 2) {
|
||||
printf("usage: %s output_type\n"
|
||||
"API example program to decode/encode a media stream with libavcodec.\n"
|
||||
"This program generates a synthetic stream and encodes it to a file\n"
|
||||
"named test.h264, test.mp2 or test.mpg depending on output_type.\n"
|
||||
"The encoded stream is then decoded and written to a raw data output.\n"
|
||||
"output_type must be chosen between 'h264', 'mp2', 'mpg'.\n",
|
||||
argv[0]);
|
||||
return 1;
|
||||
}
|
||||
output_type = argv[1];
|
||||
|
||||
if (!strcmp(output_type, "h264")) {
|
||||
video_encode_example("test.h264", AV_CODEC_ID_H264);
|
||||
} else if (!strcmp(output_type, "mp2")) {
|
||||
audio_encode_example("test.mp2");
|
||||
audio_decode_example("test.pcm", "test.mp2");
|
||||
} else if (!strcmp(output_type, "mpg")) {
|
||||
video_encode_example("test.mpg", AV_CODEC_ID_MPEG1VIDEO);
|
||||
video_decode_example("test%02d.pgm", "test.mpg");
|
||||
} else {
|
||||
fprintf(stderr, "Invalid output type '%s', choose between 'h264', 'mp2', or 'mpg'\n",
|
||||
output_type);
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -1,386 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Stefano Sabatini
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* Demuxing and decoding example.
|
||||
*
|
||||
* Show how to use the libavformat and libavcodec API to demux and
|
||||
* decode audio and video data.
|
||||
* @example demuxing_decoding.c
|
||||
*/
|
||||
|
||||
#include <libavutil/imgutils.h>
|
||||
#include <libavutil/samplefmt.h>
|
||||
#include <libavutil/timestamp.h>
|
||||
#include <libavformat/avformat.h>
|
||||
|
||||
static AVFormatContext *fmt_ctx = NULL;
|
||||
static AVCodecContext *video_dec_ctx = NULL, *audio_dec_ctx;
|
||||
static AVStream *video_stream = NULL, *audio_stream = NULL;
|
||||
static const char *src_filename = NULL;
|
||||
static const char *video_dst_filename = NULL;
|
||||
static const char *audio_dst_filename = NULL;
|
||||
static FILE *video_dst_file = NULL;
|
||||
static FILE *audio_dst_file = NULL;
|
||||
|
||||
static uint8_t *video_dst_data[4] = {NULL};
|
||||
static int video_dst_linesize[4];
|
||||
static int video_dst_bufsize;
|
||||
|
||||
static int video_stream_idx = -1, audio_stream_idx = -1;
|
||||
static AVFrame *frame = NULL;
|
||||
static AVPacket pkt;
|
||||
static int video_frame_count = 0;
|
||||
static int audio_frame_count = 0;
|
||||
|
||||
/* The different ways of decoding and managing data memory. You are not
|
||||
* supposed to support all the modes in your application but pick the one most
|
||||
* appropriate to your needs. Look for the use of api_mode in this example to
|
||||
* see what are the differences of API usage between them */
|
||||
enum {
|
||||
API_MODE_OLD = 0, /* old method, deprecated */
|
||||
API_MODE_NEW_API_REF_COUNT = 1, /* new method, using the frame reference counting */
|
||||
API_MODE_NEW_API_NO_REF_COUNT = 2, /* new method, without reference counting */
|
||||
};
|
||||
|
||||
static int api_mode = API_MODE_OLD;
|
||||
|
||||
static int decode_packet(int *got_frame, int cached)
|
||||
{
|
||||
int ret = 0;
|
||||
int decoded = pkt.size;
|
||||
|
||||
*got_frame = 0;
|
||||
|
||||
if (pkt.stream_index == video_stream_idx) {
|
||||
/* decode video frame */
|
||||
ret = avcodec_decode_video2(video_dec_ctx, frame, got_frame, &pkt);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret));
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (*got_frame) {
|
||||
printf("video_frame%s n:%d coded_n:%d pts:%s\n",
|
||||
cached ? "(cached)" : "",
|
||||
video_frame_count++, frame->coded_picture_number,
|
||||
av_ts2timestr(frame->pts, &video_dec_ctx->time_base));
|
||||
|
||||
/* copy decoded frame to destination buffer:
|
||||
* this is required since rawvideo expects non aligned data */
|
||||
av_image_copy(video_dst_data, video_dst_linesize,
|
||||
(const uint8_t **)(frame->data), frame->linesize,
|
||||
video_dec_ctx->pix_fmt, video_dec_ctx->width, video_dec_ctx->height);
|
||||
|
||||
/* write to rawvideo file */
|
||||
fwrite(video_dst_data[0], 1, video_dst_bufsize, video_dst_file);
|
||||
}
|
||||
} else if (pkt.stream_index == audio_stream_idx) {
|
||||
/* decode audio frame */
|
||||
ret = avcodec_decode_audio4(audio_dec_ctx, frame, got_frame, &pkt);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error decoding audio frame (%s)\n", av_err2str(ret));
|
||||
return ret;
|
||||
}
|
||||
/* Some audio decoders decode only part of the packet, and have to be
|
||||
* called again with the remainder of the packet data.
|
||||
* Sample: fate-suite/lossless-audio/luckynight-partial.shn
|
||||
* Also, some decoders might over-read the packet. */
|
||||
decoded = FFMIN(ret, pkt.size);
|
||||
|
||||
if (*got_frame) {
|
||||
size_t unpadded_linesize = frame->nb_samples * av_get_bytes_per_sample(frame->format);
|
||||
printf("audio_frame%s n:%d nb_samples:%d pts:%s\n",
|
||||
cached ? "(cached)" : "",
|
||||
audio_frame_count++, frame->nb_samples,
|
||||
av_ts2timestr(frame->pts, &audio_dec_ctx->time_base));
|
||||
|
||||
/* Write the raw audio data samples of the first plane. This works
|
||||
* fine for packed formats (e.g. AV_SAMPLE_FMT_S16). However,
|
||||
* most audio decoders output planar audio, which uses a separate
|
||||
* plane of audio samples for each channel (e.g. AV_SAMPLE_FMT_S16P).
|
||||
* In other words, this code will write only the first audio channel
|
||||
* in these cases.
|
||||
* You should use libswresample or libavfilter to convert the frame
|
||||
* to packed data. */
|
||||
fwrite(frame->extended_data[0], 1, unpadded_linesize, audio_dst_file);
|
||||
}
|
||||
}
|
||||
|
||||
/* If we use the new API with reference counting, we own the data and need
|
||||
* to de-reference it when we don't use it anymore */
|
||||
if (*got_frame && api_mode == API_MODE_NEW_API_REF_COUNT)
|
||||
av_frame_unref(frame);
|
||||
|
||||
return decoded;
|
||||
}
|
||||
|
||||
static int open_codec_context(int *stream_idx,
|
||||
AVFormatContext *fmt_ctx, enum AVMediaType type)
|
||||
{
|
||||
int ret;
|
||||
AVStream *st;
|
||||
AVCodecContext *dec_ctx = NULL;
|
||||
AVCodec *dec = NULL;
|
||||
AVDictionary *opts = NULL;
|
||||
|
||||
ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not find %s stream in input file '%s'\n",
|
||||
av_get_media_type_string(type), src_filename);
|
||||
return ret;
|
||||
} else {
|
||||
*stream_idx = ret;
|
||||
st = fmt_ctx->streams[*stream_idx];
|
||||
|
||||
/* find decoder for the stream */
|
||||
dec_ctx = st->codec;
|
||||
dec = avcodec_find_decoder(dec_ctx->codec_id);
|
||||
if (!dec) {
|
||||
fprintf(stderr, "Failed to find %s codec\n",
|
||||
av_get_media_type_string(type));
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
/* Init the decoders, with or without reference counting */
|
||||
if (api_mode == API_MODE_NEW_API_REF_COUNT)
|
||||
av_dict_set(&opts, "refcounted_frames", "1", 0);
|
||||
if ((ret = avcodec_open2(dec_ctx, dec, &opts)) < 0) {
|
||||
fprintf(stderr, "Failed to open %s codec\n",
|
||||
av_get_media_type_string(type));
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int get_format_from_sample_fmt(const char **fmt,
|
||||
enum AVSampleFormat sample_fmt)
|
||||
{
|
||||
int i;
|
||||
struct sample_fmt_entry {
|
||||
enum AVSampleFormat sample_fmt; const char *fmt_be, *fmt_le;
|
||||
} sample_fmt_entries[] = {
|
||||
{ AV_SAMPLE_FMT_U8, "u8", "u8" },
|
||||
{ AV_SAMPLE_FMT_S16, "s16be", "s16le" },
|
||||
{ AV_SAMPLE_FMT_S32, "s32be", "s32le" },
|
||||
{ AV_SAMPLE_FMT_FLT, "f32be", "f32le" },
|
||||
{ AV_SAMPLE_FMT_DBL, "f64be", "f64le" },
|
||||
};
|
||||
*fmt = NULL;
|
||||
|
||||
for (i = 0; i < FF_ARRAY_ELEMS(sample_fmt_entries); i++) {
|
||||
struct sample_fmt_entry *entry = &sample_fmt_entries[i];
|
||||
if (sample_fmt == entry->sample_fmt) {
|
||||
*fmt = AV_NE(entry->fmt_be, entry->fmt_le);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
fprintf(stderr,
|
||||
"sample format %s is not supported as output format\n",
|
||||
av_get_sample_fmt_name(sample_fmt));
|
||||
return -1;
|
||||
}
|
||||
|
||||
int main (int argc, char **argv)
|
||||
{
|
||||
int ret = 0, got_frame;
|
||||
|
||||
if (argc != 4 && argc != 5) {
|
||||
fprintf(stderr, "usage: %s [-refcount=<old|new_norefcount|new_refcount>] "
|
||||
"input_file video_output_file audio_output_file\n"
|
||||
"API example program to show how to read frames from an input file.\n"
|
||||
"This program reads frames from a file, decodes them, and writes decoded\n"
|
||||
"video frames to a rawvideo file named video_output_file, and decoded\n"
|
||||
"audio frames to a rawaudio file named audio_output_file.\n\n"
|
||||
"If the -refcount option is specified, the program use the\n"
|
||||
"reference counting frame system which allows keeping a copy of\n"
|
||||
"the data for longer than one decode call. If unset, it's using\n"
|
||||
"the classic old method.\n"
|
||||
"\n", argv[0]);
|
||||
exit(1);
|
||||
}
|
||||
if (argc == 5) {
|
||||
const char *mode = argv[1] + strlen("-refcount=");
|
||||
if (!strcmp(mode, "old")) api_mode = API_MODE_OLD;
|
||||
else if (!strcmp(mode, "new_norefcount")) api_mode = API_MODE_NEW_API_NO_REF_COUNT;
|
||||
else if (!strcmp(mode, "new_refcount")) api_mode = API_MODE_NEW_API_REF_COUNT;
|
||||
else {
|
||||
fprintf(stderr, "unknow mode '%s'\n", mode);
|
||||
exit(1);
|
||||
}
|
||||
argv++;
|
||||
}
|
||||
src_filename = argv[1];
|
||||
video_dst_filename = argv[2];
|
||||
audio_dst_filename = argv[3];
|
||||
|
||||
/* register all formats and codecs */
|
||||
av_register_all();
|
||||
|
||||
/* open input file, and allocate format context */
|
||||
if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
|
||||
fprintf(stderr, "Could not open source file %s\n", src_filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* retrieve stream information */
|
||||
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
|
||||
fprintf(stderr, "Could not find stream information\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
|
||||
video_stream = fmt_ctx->streams[video_stream_idx];
|
||||
video_dec_ctx = video_stream->codec;
|
||||
|
||||
video_dst_file = fopen(video_dst_filename, "wb");
|
||||
if (!video_dst_file) {
|
||||
fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
|
||||
ret = 1;
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* allocate image where the decoded image will be put */
|
||||
ret = av_image_alloc(video_dst_data, video_dst_linesize,
|
||||
video_dec_ctx->width, video_dec_ctx->height,
|
||||
video_dec_ctx->pix_fmt, 1);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not allocate raw video buffer\n");
|
||||
goto end;
|
||||
}
|
||||
video_dst_bufsize = ret;
|
||||
}
|
||||
|
||||
if (open_codec_context(&audio_stream_idx, fmt_ctx, AVMEDIA_TYPE_AUDIO) >= 0) {
|
||||
audio_stream = fmt_ctx->streams[audio_stream_idx];
|
||||
audio_dec_ctx = audio_stream->codec;
|
||||
audio_dst_file = fopen(audio_dst_filename, "wb");
|
||||
if (!audio_dst_file) {
|
||||
fprintf(stderr, "Could not open destination file %s\n", audio_dst_filename);
|
||||
ret = 1;
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
|
||||
/* dump input information to stderr */
|
||||
av_dump_format(fmt_ctx, 0, src_filename, 0);
|
||||
|
||||
if (!audio_stream && !video_stream) {
|
||||
fprintf(stderr, "Could not find audio or video stream in the input, aborting\n");
|
||||
ret = 1;
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* When using the new API, you need to use the libavutil/frame.h API, while
|
||||
* the classic frame management is available in libavcodec */
|
||||
if (api_mode == API_MODE_OLD)
|
||||
frame = avcodec_alloc_frame();
|
||||
else
|
||||
frame = av_frame_alloc();
|
||||
if (!frame) {
|
||||
fprintf(stderr, "Could not allocate frame\n");
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* initialize packet, set data to NULL, let the demuxer fill it */
|
||||
av_init_packet(&pkt);
|
||||
pkt.data = NULL;
|
||||
pkt.size = 0;
|
||||
|
||||
if (video_stream)
|
||||
printf("Demuxing video from file '%s' into '%s'\n", src_filename, video_dst_filename);
|
||||
if (audio_stream)
|
||||
printf("Demuxing audio from file '%s' into '%s'\n", src_filename, audio_dst_filename);
|
||||
|
||||
/* read frames from the file */
|
||||
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
|
||||
AVPacket orig_pkt = pkt;
|
||||
do {
|
||||
ret = decode_packet(&got_frame, 0);
|
||||
if (ret < 0)
|
||||
break;
|
||||
pkt.data += ret;
|
||||
pkt.size -= ret;
|
||||
} while (pkt.size > 0);
|
||||
av_free_packet(&orig_pkt);
|
||||
}
|
||||
|
||||
/* flush cached frames */
|
||||
pkt.data = NULL;
|
||||
pkt.size = 0;
|
||||
do {
|
||||
decode_packet(&got_frame, 1);
|
||||
} while (got_frame);
|
||||
|
||||
printf("Demuxing succeeded.\n");
|
||||
|
||||
if (video_stream) {
|
||||
printf("Play the output video file with the command:\n"
|
||||
"ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
|
||||
av_get_pix_fmt_name(video_dec_ctx->pix_fmt), video_dec_ctx->width, video_dec_ctx->height,
|
||||
video_dst_filename);
|
||||
}
|
||||
|
||||
if (audio_stream) {
|
||||
enum AVSampleFormat sfmt = audio_dec_ctx->sample_fmt;
|
||||
int n_channels = audio_dec_ctx->channels;
|
||||
const char *fmt;
|
||||
|
||||
if (av_sample_fmt_is_planar(sfmt)) {
|
||||
const char *packed = av_get_sample_fmt_name(sfmt);
|
||||
printf("Warning: the sample format the decoder produced is planar "
|
||||
"(%s). This example will output the first channel only.\n",
|
||||
packed ? packed : "?");
|
||||
sfmt = av_get_packed_sample_fmt(sfmt);
|
||||
n_channels = 1;
|
||||
}
|
||||
|
||||
if ((ret = get_format_from_sample_fmt(&fmt, sfmt)) < 0)
|
||||
goto end;
|
||||
|
||||
printf("Play the output audio file with the command:\n"
|
||||
"ffplay -f %s -ac %d -ar %d %s\n",
|
||||
fmt, n_channels, audio_dec_ctx->sample_rate,
|
||||
audio_dst_filename);
|
||||
}
|
||||
|
||||
end:
|
||||
avcodec_close(video_dec_ctx);
|
||||
avcodec_close(audio_dec_ctx);
|
||||
avformat_close_input(&fmt_ctx);
|
||||
if (video_dst_file)
|
||||
fclose(video_dst_file);
|
||||
if (audio_dst_file)
|
||||
fclose(audio_dst_file);
|
||||
if (api_mode == API_MODE_OLD)
|
||||
avcodec_free_frame(&frame);
|
||||
else
|
||||
av_frame_free(&frame);
|
||||
av_free(video_dst_data[0]);
|
||||
|
||||
return ret < 0;
|
||||
}
|
||||
467
doc/examples/encoding-example.c
Normal file
467
doc/examples/encoding-example.c
Normal file
@@ -0,0 +1,467 @@
|
||||
/*
|
||||
* Copyright (c) 2001 Fabrice Bellard
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* avcodec API use example.
|
||||
*
|
||||
* Note that this library only handles codecs (mpeg, mpeg4, etc...),
|
||||
* not file formats (avi, vob, etc...). See library 'libavformat' for the
|
||||
* format handling
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#ifdef HAVE_AV_CONFIG_H
|
||||
#undef HAVE_AV_CONFIG_H
|
||||
#endif
|
||||
|
||||
#include "libavcodec/avcodec.h"
|
||||
#include "libavutil/mathematics.h"
|
||||
|
||||
#define INBUF_SIZE 4096
|
||||
#define AUDIO_INBUF_SIZE 20480
|
||||
#define AUDIO_REFILL_THRESH 4096
|
||||
|
||||
/*
|
||||
* Audio encoding example
|
||||
*/
|
||||
static void audio_encode_example(const char *filename)
|
||||
{
|
||||
AVCodec *codec;
|
||||
AVCodecContext *c= NULL;
|
||||
int frame_size, i, j, out_size, outbuf_size;
|
||||
FILE *f;
|
||||
short *samples;
|
||||
float t, tincr;
|
||||
uint8_t *outbuf;
|
||||
|
||||
printf("Audio encoding\n");
|
||||
|
||||
/* find the MP2 encoder */
|
||||
codec = avcodec_find_encoder(CODEC_ID_MP2);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c= avcodec_alloc_context();
|
||||
|
||||
/* put sample parameters */
|
||||
c->bit_rate = 64000;
|
||||
c->sample_rate = 44100;
|
||||
c->channels = 2;
|
||||
|
||||
/* open it */
|
||||
if (avcodec_open(c, codec) < 0) {
|
||||
fprintf(stderr, "could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* the codec gives us the frame size, in samples */
|
||||
frame_size = c->frame_size;
|
||||
samples = malloc(frame_size * 2 * c->channels);
|
||||
outbuf_size = 10000;
|
||||
outbuf = malloc(outbuf_size);
|
||||
|
||||
f = fopen(filename, "wb");
|
||||
if (!f) {
|
||||
fprintf(stderr, "could not open %s\n", filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* encode a single tone sound */
|
||||
t = 0;
|
||||
tincr = 2 * M_PI * 440.0 / c->sample_rate;
|
||||
for(i=0;i<200;i++) {
|
||||
for(j=0;j<frame_size;j++) {
|
||||
samples[2*j] = (int)(sin(t) * 10000);
|
||||
samples[2*j+1] = samples[2*j];
|
||||
t += tincr;
|
||||
}
|
||||
/* encode the samples */
|
||||
out_size = avcodec_encode_audio(c, outbuf, outbuf_size, samples);
|
||||
fwrite(outbuf, 1, out_size, f);
|
||||
}
|
||||
fclose(f);
|
||||
free(outbuf);
|
||||
free(samples);
|
||||
|
||||
avcodec_close(c);
|
||||
av_free(c);
|
||||
}
|
||||
|
||||
/*
|
||||
* Audio decoding.
|
||||
*/
|
||||
static void audio_decode_example(const char *outfilename, const char *filename)
|
||||
{
|
||||
AVCodec *codec;
|
||||
AVCodecContext *c= NULL;
|
||||
int out_size, len;
|
||||
FILE *f, *outfile;
|
||||
uint8_t *outbuf;
|
||||
uint8_t inbuf[AUDIO_INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
|
||||
AVPacket avpkt;
|
||||
|
||||
av_init_packet(&avpkt);
|
||||
|
||||
printf("Audio decoding\n");
|
||||
|
||||
/* find the mpeg audio decoder */
|
||||
codec = avcodec_find_decoder(CODEC_ID_MP2);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c= avcodec_alloc_context();
|
||||
|
||||
/* open it */
|
||||
if (avcodec_open(c, codec) < 0) {
|
||||
fprintf(stderr, "could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
outbuf = malloc(AVCODEC_MAX_AUDIO_FRAME_SIZE);
|
||||
|
||||
f = fopen(filename, "rb");
|
||||
if (!f) {
|
||||
fprintf(stderr, "could not open %s\n", filename);
|
||||
exit(1);
|
||||
}
|
||||
outfile = fopen(outfilename, "wb");
|
||||
if (!outfile) {
|
||||
av_free(c);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* decode until eof */
|
||||
avpkt.data = inbuf;
|
||||
avpkt.size = fread(inbuf, 1, AUDIO_INBUF_SIZE, f);
|
||||
|
||||
while (avpkt.size > 0) {
|
||||
out_size = AVCODEC_MAX_AUDIO_FRAME_SIZE;
|
||||
len = avcodec_decode_audio3(c, (short *)outbuf, &out_size, &avpkt);
|
||||
if (len < 0) {
|
||||
fprintf(stderr, "Error while decoding\n");
|
||||
exit(1);
|
||||
}
|
||||
if (out_size > 0) {
|
||||
/* if a frame has been decoded, output it */
|
||||
fwrite(outbuf, 1, out_size, outfile);
|
||||
}
|
||||
avpkt.size -= len;
|
||||
avpkt.data += len;
|
||||
if (avpkt.size < AUDIO_REFILL_THRESH) {
|
||||
/* Refill the input buffer, to avoid trying to decode
|
||||
* incomplete frames. Instead of this, one could also use
|
||||
* a parser, or use a proper container format through
|
||||
* libavformat. */
|
||||
memmove(inbuf, avpkt.data, avpkt.size);
|
||||
avpkt.data = inbuf;
|
||||
len = fread(avpkt.data + avpkt.size, 1,
|
||||
AUDIO_INBUF_SIZE - avpkt.size, f);
|
||||
if (len > 0)
|
||||
avpkt.size += len;
|
||||
}
|
||||
}
|
||||
|
||||
fclose(outfile);
|
||||
fclose(f);
|
||||
free(outbuf);
|
||||
|
||||
avcodec_close(c);
|
||||
av_free(c);
|
||||
}
|
||||
|
||||
/*
|
||||
* Video encoding example
|
||||
*/
|
||||
static void video_encode_example(const char *filename)
|
||||
{
|
||||
AVCodec *codec;
|
||||
AVCodecContext *c= NULL;
|
||||
int i, out_size, size, x, y, outbuf_size;
|
||||
FILE *f;
|
||||
AVFrame *picture;
|
||||
uint8_t *outbuf, *picture_buf;
|
||||
|
||||
printf("Video encoding\n");
|
||||
|
||||
/* find the mpeg1 video encoder */
|
||||
codec = avcodec_find_encoder(CODEC_ID_MPEG1VIDEO);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c= avcodec_alloc_context();
|
||||
picture= avcodec_alloc_frame();
|
||||
|
||||
/* put sample parameters */
|
||||
c->bit_rate = 400000;
|
||||
/* resolution must be a multiple of two */
|
||||
c->width = 352;
|
||||
c->height = 288;
|
||||
/* frames per second */
|
||||
c->time_base= (AVRational){1,25};
|
||||
c->gop_size = 10; /* emit one intra frame every ten frames */
|
||||
c->max_b_frames=1;
|
||||
c->pix_fmt = PIX_FMT_YUV420P;
|
||||
|
||||
/* open it */
|
||||
if (avcodec_open(c, codec) < 0) {
|
||||
fprintf(stderr, "could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
f = fopen(filename, "wb");
|
||||
if (!f) {
|
||||
fprintf(stderr, "could not open %s\n", filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* alloc image and output buffer */
|
||||
outbuf_size = 100000;
|
||||
outbuf = malloc(outbuf_size);
|
||||
size = c->width * c->height;
|
||||
picture_buf = malloc((size * 3) / 2); /* size for YUV 420 */
|
||||
|
||||
picture->data[0] = picture_buf;
|
||||
picture->data[1] = picture->data[0] + size;
|
||||
picture->data[2] = picture->data[1] + size / 4;
|
||||
picture->linesize[0] = c->width;
|
||||
picture->linesize[1] = c->width / 2;
|
||||
picture->linesize[2] = c->width / 2;
|
||||
|
||||
/* encode 1 second of video */
|
||||
for(i=0;i<25;i++) {
|
||||
fflush(stdout);
|
||||
/* prepare a dummy image */
|
||||
/* Y */
|
||||
for(y=0;y<c->height;y++) {
|
||||
for(x=0;x<c->width;x++) {
|
||||
picture->data[0][y * picture->linesize[0] + x] = x + y + i * 3;
|
||||
}
|
||||
}
|
||||
|
||||
/* Cb and Cr */
|
||||
for(y=0;y<c->height/2;y++) {
|
||||
for(x=0;x<c->width/2;x++) {
|
||||
picture->data[1][y * picture->linesize[1] + x] = 128 + y + i * 2;
|
||||
picture->data[2][y * picture->linesize[2] + x] = 64 + x + i * 5;
|
||||
}
|
||||
}
|
||||
|
||||
/* encode the image */
|
||||
out_size = avcodec_encode_video(c, outbuf, outbuf_size, picture);
|
||||
printf("encoding frame %3d (size=%5d)\n", i, out_size);
|
||||
fwrite(outbuf, 1, out_size, f);
|
||||
}
|
||||
|
||||
/* get the delayed frames */
|
||||
for(; out_size; i++) {
|
||||
fflush(stdout);
|
||||
|
||||
out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
|
||||
printf("write frame %3d (size=%5d)\n", i, out_size);
|
||||
fwrite(outbuf, 1, out_size, f);
|
||||
}
|
||||
|
||||
/* add sequence end code to have a real mpeg file */
|
||||
outbuf[0] = 0x00;
|
||||
outbuf[1] = 0x00;
|
||||
outbuf[2] = 0x01;
|
||||
outbuf[3] = 0xb7;
|
||||
fwrite(outbuf, 1, 4, f);
|
||||
fclose(f);
|
||||
free(picture_buf);
|
||||
free(outbuf);
|
||||
|
||||
avcodec_close(c);
|
||||
av_free(c);
|
||||
av_free(picture);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* Video decoding example
|
||||
*/
|
||||
|
||||
static void pgm_save(unsigned char *buf, int wrap, int xsize, int ysize,
|
||||
char *filename)
|
||||
{
|
||||
FILE *f;
|
||||
int i;
|
||||
|
||||
f=fopen(filename,"w");
|
||||
fprintf(f,"P5\n%d %d\n%d\n",xsize,ysize,255);
|
||||
for(i=0;i<ysize;i++)
|
||||
fwrite(buf + i * wrap,1,xsize,f);
|
||||
fclose(f);
|
||||
}
|
||||
|
||||
static void video_decode_example(const char *outfilename, const char *filename)
|
||||
{
|
||||
AVCodec *codec;
|
||||
AVCodecContext *c= NULL;
|
||||
int frame, got_picture, len;
|
||||
FILE *f;
|
||||
AVFrame *picture;
|
||||
uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
|
||||
char buf[1024];
|
||||
AVPacket avpkt;
|
||||
|
||||
av_init_packet(&avpkt);
|
||||
|
||||
/* set end of buffer to 0 (this ensures that no overreading happens for damaged mpeg streams) */
|
||||
memset(inbuf + INBUF_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
|
||||
|
||||
printf("Video decoding\n");
|
||||
|
||||
/* find the mpeg1 video decoder */
|
||||
codec = avcodec_find_decoder(CODEC_ID_MPEG1VIDEO);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c= avcodec_alloc_context();
|
||||
picture= avcodec_alloc_frame();
|
||||
|
||||
if(codec->capabilities&CODEC_CAP_TRUNCATED)
|
||||
c->flags|= CODEC_FLAG_TRUNCATED; /* we do not send complete frames */
|
||||
|
||||
/* For some codecs, such as msmpeg4 and mpeg4, width and height
|
||||
MUST be initialized there because this information is not
|
||||
available in the bitstream. */
|
||||
|
||||
/* open it */
|
||||
if (avcodec_open(c, codec) < 0) {
|
||||
fprintf(stderr, "could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* the codec gives us the frame size, in samples */
|
||||
|
||||
f = fopen(filename, "rb");
|
||||
if (!f) {
|
||||
fprintf(stderr, "could not open %s\n", filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
frame = 0;
|
||||
for(;;) {
|
||||
avpkt.size = fread(inbuf, 1, INBUF_SIZE, f);
|
||||
if (avpkt.size == 0)
|
||||
break;
|
||||
|
||||
/* NOTE1: some codecs are stream based (mpegvideo, mpegaudio)
|
||||
and this is the only method to use them because you cannot
|
||||
know the compressed data size before analysing it.
|
||||
|
||||
BUT some other codecs (msmpeg4, mpeg4) are inherently frame
|
||||
based, so you must call them with all the data for one
|
||||
frame exactly. You must also initialize 'width' and
|
||||
'height' before initializing them. */
|
||||
|
||||
/* NOTE2: some codecs allow the raw parameters (frame size,
|
||||
sample rate) to be changed at any frame. We handle this, so
|
||||
you should also take care of it */
|
||||
|
||||
/* here, we use a stream based decoder (mpeg1video), so we
|
||||
feed decoder and see if it could decode a frame */
|
||||
avpkt.data = inbuf;
|
||||
while (avpkt.size > 0) {
|
||||
len = avcodec_decode_video2(c, picture, &got_picture, &avpkt);
|
||||
if (len < 0) {
|
||||
fprintf(stderr, "Error while decoding frame %d\n", frame);
|
||||
exit(1);
|
||||
}
|
||||
if (got_picture) {
|
||||
printf("saving frame %3d\n", frame);
|
||||
fflush(stdout);
|
||||
|
||||
/* the picture is allocated by the decoder. no need to
|
||||
free it */
|
||||
snprintf(buf, sizeof(buf), outfilename, frame);
|
||||
pgm_save(picture->data[0], picture->linesize[0],
|
||||
c->width, c->height, buf);
|
||||
frame++;
|
||||
}
|
||||
avpkt.size -= len;
|
||||
avpkt.data += len;
|
||||
}
|
||||
}
|
||||
|
||||
/* some codecs, such as MPEG, transmit the I and P frame with a
|
||||
latency of one frame. You must do the following to have a
|
||||
chance to get the last frame of the video */
|
||||
avpkt.data = NULL;
|
||||
avpkt.size = 0;
|
||||
len = avcodec_decode_video2(c, picture, &got_picture, &avpkt);
|
||||
if (got_picture) {
|
||||
printf("saving last frame %3d\n", frame);
|
||||
fflush(stdout);
|
||||
|
||||
/* the picture is allocated by the decoder. no need to
|
||||
free it */
|
||||
snprintf(buf, sizeof(buf), outfilename, frame);
|
||||
pgm_save(picture->data[0], picture->linesize[0],
|
||||
c->width, c->height, buf);
|
||||
frame++;
|
||||
}
|
||||
|
||||
fclose(f);
|
||||
|
||||
avcodec_close(c);
|
||||
av_free(c);
|
||||
av_free(picture);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
const char *filename;
|
||||
|
||||
/* must be called before using avcodec lib */
|
||||
avcodec_init();
|
||||
|
||||
/* register all the codecs */
|
||||
avcodec_register_all();
|
||||
|
||||
if (argc <= 1) {
|
||||
audio_encode_example("/tmp/test.mp2");
|
||||
audio_decode_example("/tmp/test.sw", "/tmp/test.mp2");
|
||||
|
||||
video_encode_example("/tmp/test.mpg");
|
||||
filename = "/tmp/test.mpg";
|
||||
} else {
|
||||
filename = argv[1];
|
||||
}
|
||||
|
||||
// audio_decode_example("/tmp/test.sw", filename);
|
||||
video_decode_example("/tmp/test%d.pgm", filename);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -1,185 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Stefano Sabatini
|
||||
* Copyright (c) 2014 Clément Bœsch
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <libavutil/motion_vector.h>
|
||||
#include <libavformat/avformat.h>
|
||||
|
||||
static AVFormatContext *fmt_ctx = NULL;
|
||||
static AVCodecContext *video_dec_ctx = NULL;
|
||||
static AVStream *video_stream = NULL;
|
||||
static const char *src_filename = NULL;
|
||||
|
||||
static int video_stream_idx = -1;
|
||||
static AVFrame *frame = NULL;
|
||||
static AVPacket pkt;
|
||||
static int video_frame_count = 0;
|
||||
|
||||
static int decode_packet(int *got_frame, int cached)
|
||||
{
|
||||
int decoded = pkt.size;
|
||||
|
||||
*got_frame = 0;
|
||||
|
||||
if (pkt.stream_index == video_stream_idx) {
|
||||
int ret = avcodec_decode_video2(video_dec_ctx, frame, got_frame, &pkt);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret));
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (*got_frame) {
|
||||
int i;
|
||||
AVFrameSideData *sd;
|
||||
|
||||
video_frame_count++;
|
||||
sd = av_frame_get_side_data(frame, AV_FRAME_DATA_MOTION_VECTORS);
|
||||
if (sd) {
|
||||
const AVMotionVector *mvs = (const AVMotionVector *)sd->data;
|
||||
for (i = 0; i < sd->size / sizeof(*mvs); i++) {
|
||||
const AVMotionVector *mv = &mvs[i];
|
||||
printf("%d,%2d,%2d,%2d,%4d,%4d,%4d,%4d,0x%"PRIx64"\n",
|
||||
video_frame_count, mv->source,
|
||||
mv->w, mv->h, mv->src_x, mv->src_y,
|
||||
mv->dst_x, mv->dst_y, mv->flags);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return decoded;
|
||||
}
|
||||
|
||||
static int open_codec_context(int *stream_idx,
|
||||
AVFormatContext *fmt_ctx, enum AVMediaType type)
|
||||
{
|
||||
int ret;
|
||||
AVStream *st;
|
||||
AVCodecContext *dec_ctx = NULL;
|
||||
AVCodec *dec = NULL;
|
||||
AVDictionary *opts = NULL;
|
||||
|
||||
ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not find %s stream in input file '%s'\n",
|
||||
av_get_media_type_string(type), src_filename);
|
||||
return ret;
|
||||
} else {
|
||||
*stream_idx = ret;
|
||||
st = fmt_ctx->streams[*stream_idx];
|
||||
|
||||
/* find decoder for the stream */
|
||||
dec_ctx = st->codec;
|
||||
dec = avcodec_find_decoder(dec_ctx->codec_id);
|
||||
if (!dec) {
|
||||
fprintf(stderr, "Failed to find %s codec\n",
|
||||
av_get_media_type_string(type));
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
/* Init the video decoder */
|
||||
av_dict_set(&opts, "flags2", "+export_mvs", 0);
|
||||
if ((ret = avcodec_open2(dec_ctx, dec, &opts)) < 0) {
|
||||
fprintf(stderr, "Failed to open %s codec\n",
|
||||
av_get_media_type_string(type));
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int ret = 0, got_frame;
|
||||
|
||||
if (argc != 2) {
|
||||
fprintf(stderr, "Usage: %s <video>\n", argv[0]);
|
||||
exit(1);
|
||||
}
|
||||
src_filename = argv[1];
|
||||
|
||||
av_register_all();
|
||||
|
||||
if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
|
||||
fprintf(stderr, "Could not open source file %s\n", src_filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
|
||||
fprintf(stderr, "Could not find stream information\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
|
||||
video_stream = fmt_ctx->streams[video_stream_idx];
|
||||
video_dec_ctx = video_stream->codec;
|
||||
}
|
||||
|
||||
av_dump_format(fmt_ctx, 0, src_filename, 0);
|
||||
|
||||
if (!video_stream) {
|
||||
fprintf(stderr, "Could not find video stream in the input, aborting\n");
|
||||
ret = 1;
|
||||
goto end;
|
||||
}
|
||||
|
||||
frame = av_frame_alloc();
|
||||
if (!frame) {
|
||||
fprintf(stderr, "Could not allocate frame\n");
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
|
||||
printf("framenum,source,blockw,blockh,srcx,srcy,dstx,dsty,flags\n");
|
||||
|
||||
/* initialize packet, set data to NULL, let the demuxer fill it */
|
||||
av_init_packet(&pkt);
|
||||
pkt.data = NULL;
|
||||
pkt.size = 0;
|
||||
|
||||
/* read frames from the file */
|
||||
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
|
||||
AVPacket orig_pkt = pkt;
|
||||
do {
|
||||
ret = decode_packet(&got_frame, 0);
|
||||
if (ret < 0)
|
||||
break;
|
||||
pkt.data += ret;
|
||||
pkt.size -= ret;
|
||||
} while (pkt.size > 0);
|
||||
av_free_packet(&orig_pkt);
|
||||
}
|
||||
|
||||
/* flush cached frames */
|
||||
pkt.data = NULL;
|
||||
pkt.size = 0;
|
||||
do {
|
||||
decode_packet(&got_frame, 1);
|
||||
} while (got_frame);
|
||||
|
||||
end:
|
||||
avcodec_close(video_dec_ctx);
|
||||
avformat_close_input(&fmt_ctx);
|
||||
av_frame_free(&frame);
|
||||
return ret < 0;
|
||||
}
|
||||
@@ -1,365 +0,0 @@
|
||||
/*
|
||||
* copyright (c) 2013 Andrew Kelley
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* libavfilter API usage example.
|
||||
*
|
||||
* @example filter_audio.c
|
||||
* This example will generate a sine wave audio,
|
||||
* pass it through a simple filter chain, and then compute the MD5 checksum of
|
||||
* the output data.
|
||||
*
|
||||
* The filter chain it uses is:
|
||||
* (input) -> abuffer -> volume -> aformat -> abuffersink -> (output)
|
||||
*
|
||||
* abuffer: This provides the endpoint where you can feed the decoded samples.
|
||||
* volume: In this example we hardcode it to 0.90.
|
||||
* aformat: This converts the samples to the samplefreq, channel layout,
|
||||
* and sample format required by the audio device.
|
||||
* abuffersink: This provides the endpoint where you can read the samples after
|
||||
* they have passed through the filter chain.
|
||||
*/
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <math.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "libavutil/channel_layout.h"
|
||||
#include "libavutil/md5.h"
|
||||
#include "libavutil/mem.h"
|
||||
#include "libavutil/opt.h"
|
||||
#include "libavutil/samplefmt.h"
|
||||
|
||||
#include "libavfilter/avfilter.h"
|
||||
#include "libavfilter/buffersink.h"
|
||||
#include "libavfilter/buffersrc.h"
|
||||
|
||||
#define INPUT_SAMPLERATE 48000
|
||||
#define INPUT_FORMAT AV_SAMPLE_FMT_FLTP
|
||||
#define INPUT_CHANNEL_LAYOUT AV_CH_LAYOUT_5POINT0
|
||||
|
||||
#define VOLUME_VAL 0.90
|
||||
|
||||
static int init_filter_graph(AVFilterGraph **graph, AVFilterContext **src,
|
||||
AVFilterContext **sink)
|
||||
{
|
||||
AVFilterGraph *filter_graph;
|
||||
AVFilterContext *abuffer_ctx;
|
||||
AVFilter *abuffer;
|
||||
AVFilterContext *volume_ctx;
|
||||
AVFilter *volume;
|
||||
AVFilterContext *aformat_ctx;
|
||||
AVFilter *aformat;
|
||||
AVFilterContext *abuffersink_ctx;
|
||||
AVFilter *abuffersink;
|
||||
|
||||
AVDictionary *options_dict = NULL;
|
||||
uint8_t options_str[1024];
|
||||
uint8_t ch_layout[64];
|
||||
|
||||
int err;
|
||||
|
||||
/* Create a new filtergraph, which will contain all the filters. */
|
||||
filter_graph = avfilter_graph_alloc();
|
||||
if (!filter_graph) {
|
||||
fprintf(stderr, "Unable to create filter graph.\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
/* Create the abuffer filter;
|
||||
* it will be used for feeding the data into the graph. */
|
||||
abuffer = avfilter_get_by_name("abuffer");
|
||||
if (!abuffer) {
|
||||
fprintf(stderr, "Could not find the abuffer filter.\n");
|
||||
return AVERROR_FILTER_NOT_FOUND;
|
||||
}
|
||||
|
||||
abuffer_ctx = avfilter_graph_alloc_filter(filter_graph, abuffer, "src");
|
||||
if (!abuffer_ctx) {
|
||||
fprintf(stderr, "Could not allocate the abuffer instance.\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
/* Set the filter options through the AVOptions API. */
|
||||
av_get_channel_layout_string(ch_layout, sizeof(ch_layout), 0, INPUT_CHANNEL_LAYOUT);
|
||||
av_opt_set (abuffer_ctx, "channel_layout", ch_layout, AV_OPT_SEARCH_CHILDREN);
|
||||
av_opt_set (abuffer_ctx, "sample_fmt", av_get_sample_fmt_name(INPUT_FORMAT), AV_OPT_SEARCH_CHILDREN);
|
||||
av_opt_set_q (abuffer_ctx, "time_base", (AVRational){ 1, INPUT_SAMPLERATE }, AV_OPT_SEARCH_CHILDREN);
|
||||
av_opt_set_int(abuffer_ctx, "sample_rate", INPUT_SAMPLERATE, AV_OPT_SEARCH_CHILDREN);
|
||||
|
||||
/* Now initialize the filter; we pass NULL options, since we have already
|
||||
* set all the options above. */
|
||||
err = avfilter_init_str(abuffer_ctx, NULL);
|
||||
if (err < 0) {
|
||||
fprintf(stderr, "Could not initialize the abuffer filter.\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Create volume filter. */
|
||||
volume = avfilter_get_by_name("volume");
|
||||
if (!volume) {
|
||||
fprintf(stderr, "Could not find the volume filter.\n");
|
||||
return AVERROR_FILTER_NOT_FOUND;
|
||||
}
|
||||
|
||||
volume_ctx = avfilter_graph_alloc_filter(filter_graph, volume, "volume");
|
||||
if (!volume_ctx) {
|
||||
fprintf(stderr, "Could not allocate the volume instance.\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
/* A different way of passing the options is as key/value pairs in a
|
||||
* dictionary. */
|
||||
av_dict_set(&options_dict, "volume", AV_STRINGIFY(VOLUME_VAL), 0);
|
||||
err = avfilter_init_dict(volume_ctx, &options_dict);
|
||||
av_dict_free(&options_dict);
|
||||
if (err < 0) {
|
||||
fprintf(stderr, "Could not initialize the volume filter.\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Create the aformat filter;
|
||||
* it ensures that the output is of the format we want. */
|
||||
aformat = avfilter_get_by_name("aformat");
|
||||
if (!aformat) {
|
||||
fprintf(stderr, "Could not find the aformat filter.\n");
|
||||
return AVERROR_FILTER_NOT_FOUND;
|
||||
}
|
||||
|
||||
aformat_ctx = avfilter_graph_alloc_filter(filter_graph, aformat, "aformat");
|
||||
if (!aformat_ctx) {
|
||||
fprintf(stderr, "Could not allocate the aformat instance.\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
/* A third way of passing the options is in a string of the form
|
||||
* key1=value1:key2=value2.... */
|
||||
snprintf(options_str, sizeof(options_str),
|
||||
"sample_fmts=%s:sample_rates=%d:channel_layouts=0x%"PRIx64,
|
||||
av_get_sample_fmt_name(AV_SAMPLE_FMT_S16), 44100,
|
||||
(uint64_t)AV_CH_LAYOUT_STEREO);
|
||||
err = avfilter_init_str(aformat_ctx, options_str);
|
||||
if (err < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Could not initialize the aformat filter.\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Finally create the abuffersink filter;
|
||||
* it will be used to get the filtered data out of the graph. */
|
||||
abuffersink = avfilter_get_by_name("abuffersink");
|
||||
if (!abuffersink) {
|
||||
fprintf(stderr, "Could not find the abuffersink filter.\n");
|
||||
return AVERROR_FILTER_NOT_FOUND;
|
||||
}
|
||||
|
||||
abuffersink_ctx = avfilter_graph_alloc_filter(filter_graph, abuffersink, "sink");
|
||||
if (!abuffersink_ctx) {
|
||||
fprintf(stderr, "Could not allocate the abuffersink instance.\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
/* This filter takes no options. */
|
||||
err = avfilter_init_str(abuffersink_ctx, NULL);
|
||||
if (err < 0) {
|
||||
fprintf(stderr, "Could not initialize the abuffersink instance.\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Connect the filters;
|
||||
* in this simple case the filters just form a linear chain. */
|
||||
err = avfilter_link(abuffer_ctx, 0, volume_ctx, 0);
|
||||
if (err >= 0)
|
||||
err = avfilter_link(volume_ctx, 0, aformat_ctx, 0);
|
||||
if (err >= 0)
|
||||
err = avfilter_link(aformat_ctx, 0, abuffersink_ctx, 0);
|
||||
if (err < 0) {
|
||||
fprintf(stderr, "Error connecting filters\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Configure the graph. */
|
||||
err = avfilter_graph_config(filter_graph, NULL);
|
||||
if (err < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Error configuring the filter graph\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
*graph = filter_graph;
|
||||
*src = abuffer_ctx;
|
||||
*sink = abuffersink_ctx;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Do something useful with the filtered data: this simple
|
||||
* example just prints the MD5 checksum of each plane to stdout. */
|
||||
static int process_output(struct AVMD5 *md5, AVFrame *frame)
|
||||
{
|
||||
int planar = av_sample_fmt_is_planar(frame->format);
|
||||
int channels = av_get_channel_layout_nb_channels(frame->channel_layout);
|
||||
int planes = planar ? channels : 1;
|
||||
int bps = av_get_bytes_per_sample(frame->format);
|
||||
int plane_size = bps * frame->nb_samples * (planar ? 1 : channels);
|
||||
int i, j;
|
||||
|
||||
for (i = 0; i < planes; i++) {
|
||||
uint8_t checksum[16];
|
||||
|
||||
av_md5_init(md5);
|
||||
av_md5_sum(checksum, frame->extended_data[i], plane_size);
|
||||
|
||||
fprintf(stdout, "plane %d: 0x", i);
|
||||
for (j = 0; j < sizeof(checksum); j++)
|
||||
fprintf(stdout, "%02X", checksum[j]);
|
||||
fprintf(stdout, "\n");
|
||||
}
|
||||
fprintf(stdout, "\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Construct a frame of audio data to be filtered;
|
||||
* this simple example just synthesizes a sine wave. */
|
||||
static int get_input(AVFrame *frame, int frame_num)
|
||||
{
|
||||
int err, i, j;
|
||||
|
||||
#define FRAME_SIZE 1024
|
||||
|
||||
/* Set up the frame properties and allocate the buffer for the data. */
|
||||
frame->sample_rate = INPUT_SAMPLERATE;
|
||||
frame->format = INPUT_FORMAT;
|
||||
frame->channel_layout = INPUT_CHANNEL_LAYOUT;
|
||||
frame->nb_samples = FRAME_SIZE;
|
||||
frame->pts = frame_num * FRAME_SIZE;
|
||||
|
||||
err = av_frame_get_buffer(frame, 0);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
/* Fill the data for each channel. */
|
||||
for (i = 0; i < 5; i++) {
|
||||
float *data = (float*)frame->extended_data[i];
|
||||
|
||||
for (j = 0; j < frame->nb_samples; j++)
|
||||
data[j] = sin(2 * M_PI * (frame_num + j) * (i + 1) / FRAME_SIZE);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
struct AVMD5 *md5;
|
||||
AVFilterGraph *graph;
|
||||
AVFilterContext *src, *sink;
|
||||
AVFrame *frame;
|
||||
uint8_t errstr[1024];
|
||||
float duration;
|
||||
int err, nb_frames, i;
|
||||
|
||||
if (argc < 2) {
|
||||
fprintf(stderr, "Usage: %s <duration>\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
duration = atof(argv[1]);
|
||||
nb_frames = duration * INPUT_SAMPLERATE / FRAME_SIZE;
|
||||
if (nb_frames <= 0) {
|
||||
fprintf(stderr, "Invalid duration: %s\n", argv[1]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
avfilter_register_all();
|
||||
|
||||
/* Allocate the frame we will be using to store the data. */
|
||||
frame = av_frame_alloc();
|
||||
if (!frame) {
|
||||
fprintf(stderr, "Error allocating the frame\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
md5 = av_md5_alloc();
|
||||
if (!md5) {
|
||||
fprintf(stderr, "Error allocating the MD5 context\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Set up the filtergraph. */
|
||||
err = init_filter_graph(&graph, &src, &sink);
|
||||
if (err < 0) {
|
||||
fprintf(stderr, "Unable to init filter graph:");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* the main filtering loop */
|
||||
for (i = 0; i < nb_frames; i++) {
|
||||
/* get an input frame to be filtered */
|
||||
err = get_input(frame, i);
|
||||
if (err < 0) {
|
||||
fprintf(stderr, "Error generating input frame:");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* Send the frame to the input of the filtergraph. */
|
||||
err = av_buffersrc_add_frame(src, frame);
|
||||
if (err < 0) {
|
||||
av_frame_unref(frame);
|
||||
fprintf(stderr, "Error submitting the frame to the filtergraph:");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* Get all the filtered output that is available. */
|
||||
while ((err = av_buffersink_get_frame(sink, frame)) >= 0) {
|
||||
/* now do something with our filtered frame */
|
||||
err = process_output(md5, frame);
|
||||
if (err < 0) {
|
||||
fprintf(stderr, "Error processing the filtered frame:");
|
||||
goto fail;
|
||||
}
|
||||
av_frame_unref(frame);
|
||||
}
|
||||
|
||||
if (err == AVERROR(EAGAIN)) {
|
||||
/* Need to feed more frames in. */
|
||||
continue;
|
||||
} else if (err == AVERROR_EOF) {
|
||||
/* Nothing more to do, finish. */
|
||||
break;
|
||||
} else if (err < 0) {
|
||||
/* An error occurred. */
|
||||
fprintf(stderr, "Error filtering the data:");
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
|
||||
avfilter_graph_free(&graph);
|
||||
av_frame_free(&frame);
|
||||
av_freep(&md5);
|
||||
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
av_strerror(err, errstr, sizeof(errstr));
|
||||
fprintf(stderr, "%s\n", errstr);
|
||||
return 1;
|
||||
}
|
||||
@@ -1,280 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2010 Nicolas George
|
||||
* Copyright (c) 2011 Stefano Sabatini
|
||||
* Copyright (c) 2012 Clément Bœsch
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* API example for audio decoding and filtering
|
||||
* @example filtering_audio.c
|
||||
*/
|
||||
|
||||
#include <unistd.h>
|
||||
|
||||
#include <libavcodec/avcodec.h>
|
||||
#include <libavformat/avformat.h>
|
||||
#include <libavfilter/avfiltergraph.h>
|
||||
#include <libavfilter/avcodec.h>
|
||||
#include <libavfilter/buffersink.h>
|
||||
#include <libavfilter/buffersrc.h>
|
||||
#include <libavutil/opt.h>
|
||||
|
||||
static const char *filter_descr = "aresample=8000,aformat=sample_fmts=s16:channel_layouts=mono";
|
||||
static const char *player = "ffplay -f s16le -ar 8000 -ac 1 -";
|
||||
|
||||
static AVFormatContext *fmt_ctx;
|
||||
static AVCodecContext *dec_ctx;
|
||||
AVFilterContext *buffersink_ctx;
|
||||
AVFilterContext *buffersrc_ctx;
|
||||
AVFilterGraph *filter_graph;
|
||||
static int audio_stream_index = -1;
|
||||
|
||||
static int open_input_file(const char *filename)
|
||||
{
|
||||
int ret;
|
||||
AVCodec *dec;
|
||||
|
||||
if ((ret = avformat_open_input(&fmt_ctx, filename, NULL, NULL)) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot open input file\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if ((ret = avformat_find_stream_info(fmt_ctx, NULL)) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* select the audio stream */
|
||||
ret = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_AUDIO, -1, -1, &dec, 0);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot find a audio stream in the input file\n");
|
||||
return ret;
|
||||
}
|
||||
audio_stream_index = ret;
|
||||
dec_ctx = fmt_ctx->streams[audio_stream_index]->codec;
|
||||
av_opt_set_int(dec_ctx, "refcounted_frames", 1, 0);
|
||||
|
||||
/* init the audio decoder */
|
||||
if ((ret = avcodec_open2(dec_ctx, dec, NULL)) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot open audio decoder\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int init_filters(const char *filters_descr)
|
||||
{
|
||||
char args[512];
|
||||
int ret = 0;
|
||||
AVFilter *abuffersrc = avfilter_get_by_name("abuffer");
|
||||
AVFilter *abuffersink = avfilter_get_by_name("abuffersink");
|
||||
AVFilterInOut *outputs = avfilter_inout_alloc();
|
||||
AVFilterInOut *inputs = avfilter_inout_alloc();
|
||||
static const enum AVSampleFormat out_sample_fmts[] = { AV_SAMPLE_FMT_S16, -1 };
|
||||
static const int64_t out_channel_layouts[] = { AV_CH_LAYOUT_MONO, -1 };
|
||||
static const int out_sample_rates[] = { 8000, -1 };
|
||||
const AVFilterLink *outlink;
|
||||
AVRational time_base = fmt_ctx->streams[audio_stream_index]->time_base;
|
||||
|
||||
filter_graph = avfilter_graph_alloc();
|
||||
if (!outputs || !inputs || !filter_graph) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* buffer audio source: the decoded frames from the decoder will be inserted here. */
|
||||
if (!dec_ctx->channel_layout)
|
||||
dec_ctx->channel_layout = av_get_default_channel_layout(dec_ctx->channels);
|
||||
snprintf(args, sizeof(args),
|
||||
"time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%"PRIx64,
|
||||
time_base.num, time_base.den, dec_ctx->sample_rate,
|
||||
av_get_sample_fmt_name(dec_ctx->sample_fmt), dec_ctx->channel_layout);
|
||||
ret = avfilter_graph_create_filter(&buffersrc_ctx, abuffersrc, "in",
|
||||
args, NULL, filter_graph);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer source\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* buffer audio sink: to terminate the filter chain. */
|
||||
ret = avfilter_graph_create_filter(&buffersink_ctx, abuffersink, "out",
|
||||
NULL, NULL, filter_graph);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = av_opt_set_int_list(buffersink_ctx, "sample_fmts", out_sample_fmts, -1,
|
||||
AV_OPT_SEARCH_CHILDREN);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = av_opt_set_int_list(buffersink_ctx, "channel_layouts", out_channel_layouts, -1,
|
||||
AV_OPT_SEARCH_CHILDREN);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = av_opt_set_int_list(buffersink_ctx, "sample_rates", out_sample_rates, -1,
|
||||
AV_OPT_SEARCH_CHILDREN);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* Endpoints for the filter graph. */
|
||||
outputs->name = av_strdup("in");
|
||||
outputs->filter_ctx = buffersrc_ctx;
|
||||
outputs->pad_idx = 0;
|
||||
outputs->next = NULL;
|
||||
|
||||
inputs->name = av_strdup("out");
|
||||
inputs->filter_ctx = buffersink_ctx;
|
||||
inputs->pad_idx = 0;
|
||||
inputs->next = NULL;
|
||||
|
||||
if ((ret = avfilter_graph_parse_ptr(filter_graph, filters_descr,
|
||||
&inputs, &outputs, NULL)) < 0)
|
||||
goto end;
|
||||
|
||||
if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
|
||||
goto end;
|
||||
|
||||
/* Print summary of the sink buffer
|
||||
* Note: args buffer is reused to store channel layout string */
|
||||
outlink = buffersink_ctx->inputs[0];
|
||||
av_get_channel_layout_string(args, sizeof(args), -1, outlink->channel_layout);
|
||||
av_log(NULL, AV_LOG_INFO, "Output: srate:%dHz fmt:%s chlayout:%s\n",
|
||||
(int)outlink->sample_rate,
|
||||
(char *)av_x_if_null(av_get_sample_fmt_name(outlink->format), "?"),
|
||||
args);
|
||||
|
||||
end:
|
||||
avfilter_inout_free(&inputs);
|
||||
avfilter_inout_free(&outputs);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void print_frame(const AVFrame *frame)
|
||||
{
|
||||
const int n = frame->nb_samples * av_get_channel_layout_nb_channels(av_frame_get_channel_layout(frame));
|
||||
const uint16_t *p = (uint16_t*)frame->data[0];
|
||||
const uint16_t *p_end = p + n;
|
||||
|
||||
while (p < p_end) {
|
||||
fputc(*p & 0xff, stdout);
|
||||
fputc(*p>>8 & 0xff, stdout);
|
||||
p++;
|
||||
}
|
||||
fflush(stdout);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int ret;
|
||||
AVPacket packet0, packet;
|
||||
AVFrame *frame = av_frame_alloc();
|
||||
AVFrame *filt_frame = av_frame_alloc();
|
||||
int got_frame;
|
||||
|
||||
if (!frame || !filt_frame) {
|
||||
perror("Could not allocate frame");
|
||||
exit(1);
|
||||
}
|
||||
if (argc != 2) {
|
||||
fprintf(stderr, "Usage: %s file | %s\n", argv[0], player);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
av_register_all();
|
||||
avfilter_register_all();
|
||||
|
||||
if ((ret = open_input_file(argv[1])) < 0)
|
||||
goto end;
|
||||
if ((ret = init_filters(filter_descr)) < 0)
|
||||
goto end;
|
||||
|
||||
/* read all packets */
|
||||
packet0.data = NULL;
|
||||
packet.data = NULL;
|
||||
while (1) {
|
||||
if (!packet0.data) {
|
||||
if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
|
||||
break;
|
||||
packet0 = packet;
|
||||
}
|
||||
|
||||
if (packet.stream_index == audio_stream_index) {
|
||||
got_frame = 0;
|
||||
ret = avcodec_decode_audio4(dec_ctx, frame, &got_frame, &packet);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Error decoding audio\n");
|
||||
continue;
|
||||
}
|
||||
packet.size -= ret;
|
||||
packet.data += ret;
|
||||
|
||||
if (got_frame) {
|
||||
/* push the audio data from decoded frame into the filtergraph */
|
||||
if (av_buffersrc_add_frame_flags(buffersrc_ctx, frame, 0) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Error while feeding the audio filtergraph\n");
|
||||
break;
|
||||
}
|
||||
|
||||
/* pull filtered audio from the filtergraph */
|
||||
while (1) {
|
||||
ret = av_buffersink_get_frame(buffersink_ctx, filt_frame);
|
||||
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
|
||||
break;
|
||||
if (ret < 0)
|
||||
goto end;
|
||||
print_frame(filt_frame);
|
||||
av_frame_unref(filt_frame);
|
||||
}
|
||||
}
|
||||
|
||||
if (packet.size <= 0)
|
||||
av_free_packet(&packet0);
|
||||
} else {
|
||||
/* discard non-wanted packets */
|
||||
av_free_packet(&packet0);
|
||||
}
|
||||
}
|
||||
end:
|
||||
avfilter_graph_free(&filter_graph);
|
||||
avcodec_close(dec_ctx);
|
||||
avformat_close_input(&fmt_ctx);
|
||||
av_frame_free(&frame);
|
||||
av_frame_free(&filt_frame);
|
||||
|
||||
if (ret < 0 && ret != AVERROR_EOF) {
|
||||
fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
exit(0);
|
||||
}
|
||||
@@ -1,262 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2010 Nicolas George
|
||||
* Copyright (c) 2011 Stefano Sabatini
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* API example for decoding and filtering
|
||||
* @example filtering_video.c
|
||||
*/
|
||||
|
||||
#define _XOPEN_SOURCE 600 /* for usleep */
|
||||
#include <unistd.h>
|
||||
|
||||
#include <libavcodec/avcodec.h>
|
||||
#include <libavformat/avformat.h>
|
||||
#include <libavfilter/avfiltergraph.h>
|
||||
#include <libavfilter/avcodec.h>
|
||||
#include <libavfilter/buffersink.h>
|
||||
#include <libavfilter/buffersrc.h>
|
||||
#include <libavutil/opt.h>
|
||||
|
||||
const char *filter_descr = "scale=78:24";
|
||||
|
||||
static AVFormatContext *fmt_ctx;
|
||||
static AVCodecContext *dec_ctx;
|
||||
AVFilterContext *buffersink_ctx;
|
||||
AVFilterContext *buffersrc_ctx;
|
||||
AVFilterGraph *filter_graph;
|
||||
static int video_stream_index = -1;
|
||||
static int64_t last_pts = AV_NOPTS_VALUE;
|
||||
|
||||
static int open_input_file(const char *filename)
|
||||
{
|
||||
int ret;
|
||||
AVCodec *dec;
|
||||
|
||||
if ((ret = avformat_open_input(&fmt_ctx, filename, NULL, NULL)) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot open input file\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if ((ret = avformat_find_stream_info(fmt_ctx, NULL)) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* select the video stream */
|
||||
ret = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, &dec, 0);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot find a video stream in the input file\n");
|
||||
return ret;
|
||||
}
|
||||
video_stream_index = ret;
|
||||
dec_ctx = fmt_ctx->streams[video_stream_index]->codec;
|
||||
av_opt_set_int(dec_ctx, "refcounted_frames", 1, 0);
|
||||
|
||||
/* init the video decoder */
|
||||
if ((ret = avcodec_open2(dec_ctx, dec, NULL)) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot open video decoder\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int init_filters(const char *filters_descr)
|
||||
{
|
||||
char args[512];
|
||||
int ret = 0;
|
||||
AVFilter *buffersrc = avfilter_get_by_name("buffer");
|
||||
AVFilter *buffersink = avfilter_get_by_name("buffersink");
|
||||
AVFilterInOut *outputs = avfilter_inout_alloc();
|
||||
AVFilterInOut *inputs = avfilter_inout_alloc();
|
||||
AVRational time_base = fmt_ctx->streams[video_stream_index]->time_base;
|
||||
enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
|
||||
|
||||
filter_graph = avfilter_graph_alloc();
|
||||
if (!outputs || !inputs || !filter_graph) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* buffer video source: the decoded frames from the decoder will be inserted here. */
|
||||
snprintf(args, sizeof(args),
|
||||
"video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
|
||||
dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
|
||||
time_base.num, time_base.den,
|
||||
dec_ctx->sample_aspect_ratio.num, dec_ctx->sample_aspect_ratio.den);
|
||||
|
||||
ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
|
||||
args, NULL, filter_graph);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* buffer video sink: to terminate the filter chain. */
|
||||
ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
|
||||
NULL, NULL, filter_graph);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = av_opt_set_int_list(buffersink_ctx, "pix_fmts", pix_fmts,
|
||||
AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output pixel format\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* Endpoints for the filter graph. */
|
||||
outputs->name = av_strdup("in");
|
||||
outputs->filter_ctx = buffersrc_ctx;
|
||||
outputs->pad_idx = 0;
|
||||
outputs->next = NULL;
|
||||
|
||||
inputs->name = av_strdup("out");
|
||||
inputs->filter_ctx = buffersink_ctx;
|
||||
inputs->pad_idx = 0;
|
||||
inputs->next = NULL;
|
||||
|
||||
if ((ret = avfilter_graph_parse_ptr(filter_graph, filters_descr,
|
||||
&inputs, &outputs, NULL)) < 0)
|
||||
goto end;
|
||||
|
||||
if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
|
||||
goto end;
|
||||
|
||||
end:
|
||||
avfilter_inout_free(&inputs);
|
||||
avfilter_inout_free(&outputs);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void display_frame(const AVFrame *frame, AVRational time_base)
|
||||
{
|
||||
int x, y;
|
||||
uint8_t *p0, *p;
|
||||
int64_t delay;
|
||||
|
||||
if (frame->pts != AV_NOPTS_VALUE) {
|
||||
if (last_pts != AV_NOPTS_VALUE) {
|
||||
/* sleep roughly the right amount of time;
|
||||
* usleep is in microseconds, just like AV_TIME_BASE. */
|
||||
delay = av_rescale_q(frame->pts - last_pts,
|
||||
time_base, AV_TIME_BASE_Q);
|
||||
if (delay > 0 && delay < 1000000)
|
||||
usleep(delay);
|
||||
}
|
||||
last_pts = frame->pts;
|
||||
}
|
||||
|
||||
/* Trivial ASCII grayscale display. */
|
||||
p0 = frame->data[0];
|
||||
puts("\033c");
|
||||
for (y = 0; y < frame->height; y++) {
|
||||
p = p0;
|
||||
for (x = 0; x < frame->width; x++)
|
||||
putchar(" .-+#"[*(p++) / 52]);
|
||||
putchar('\n');
|
||||
p0 += frame->linesize[0];
|
||||
}
|
||||
fflush(stdout);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int ret;
|
||||
AVPacket packet;
|
||||
AVFrame *frame = av_frame_alloc();
|
||||
AVFrame *filt_frame = av_frame_alloc();
|
||||
int got_frame;
|
||||
|
||||
if (!frame || !filt_frame) {
|
||||
perror("Could not allocate frame");
|
||||
exit(1);
|
||||
}
|
||||
if (argc != 2) {
|
||||
fprintf(stderr, "Usage: %s file\n", argv[0]);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
av_register_all();
|
||||
avfilter_register_all();
|
||||
|
||||
if ((ret = open_input_file(argv[1])) < 0)
|
||||
goto end;
|
||||
if ((ret = init_filters(filter_descr)) < 0)
|
||||
goto end;
|
||||
|
||||
/* read all packets */
|
||||
while (1) {
|
||||
if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
|
||||
break;
|
||||
|
||||
if (packet.stream_index == video_stream_index) {
|
||||
got_frame = 0;
|
||||
ret = avcodec_decode_video2(dec_ctx, frame, &got_frame, &packet);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Error decoding video\n");
|
||||
break;
|
||||
}
|
||||
|
||||
if (got_frame) {
|
||||
frame->pts = av_frame_get_best_effort_timestamp(frame);
|
||||
|
||||
/* push the decoded frame into the filtergraph */
|
||||
if (av_buffersrc_add_frame_flags(buffersrc_ctx, frame, AV_BUFFERSRC_FLAG_KEEP_REF) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
|
||||
break;
|
||||
}
|
||||
|
||||
/* pull filtered frames from the filtergraph */
|
||||
while (1) {
|
||||
ret = av_buffersink_get_frame(buffersink_ctx, filt_frame);
|
||||
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
|
||||
break;
|
||||
if (ret < 0)
|
||||
goto end;
|
||||
display_frame(filt_frame, buffersink_ctx->inputs[0]->time_base);
|
||||
av_frame_unref(filt_frame);
|
||||
}
|
||||
av_frame_unref(frame);
|
||||
}
|
||||
}
|
||||
av_free_packet(&packet);
|
||||
}
|
||||
end:
|
||||
avfilter_graph_free(&filter_graph);
|
||||
avcodec_close(dec_ctx);
|
||||
avformat_close_input(&fmt_ctx);
|
||||
av_frame_free(&frame);
|
||||
av_frame_free(&filt_frame);
|
||||
|
||||
if (ret < 0 && ret != AVERROR_EOF) {
|
||||
fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
exit(0);
|
||||
}
|
||||
@@ -1,56 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2011 Reinhard Tartler
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* Shows how the metadata API can be used in application programs.
|
||||
* @example metadata.c
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include <libavformat/avformat.h>
|
||||
#include <libavutil/dict.h>
|
||||
|
||||
int main (int argc, char **argv)
|
||||
{
|
||||
AVFormatContext *fmt_ctx = NULL;
|
||||
AVDictionaryEntry *tag = NULL;
|
||||
int ret;
|
||||
|
||||
if (argc != 2) {
|
||||
printf("usage: %s <input_file>\n"
|
||||
"example program to demonstrate the use of the libavformat metadata API.\n"
|
||||
"\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
av_register_all();
|
||||
if ((ret = avformat_open_input(&fmt_ctx, argv[1], NULL, NULL)))
|
||||
return ret;
|
||||
|
||||
while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
|
||||
printf("%s=%s\n", tag->key, tag->value);
|
||||
|
||||
avformat_close_input(&fmt_ctx);
|
||||
return 0;
|
||||
}
|
||||
542
doc/examples/muxing-example.c
Normal file
542
doc/examples/muxing-example.c
Normal file
@@ -0,0 +1,542 @@
|
||||
/*
|
||||
* Copyright (c) 2003 Fabrice Bellard
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* Libavformat API example: Output a media file in any supported
|
||||
* libavformat format. The default codecs are used.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <math.h>
|
||||
|
||||
#include "libavformat/avformat.h"
|
||||
#include "libswscale/swscale.h"
|
||||
|
||||
#undef exit
|
||||
|
||||
/* 5 seconds stream duration */
|
||||
#define STREAM_DURATION 5.0
|
||||
#define STREAM_FRAME_RATE 25 /* 25 images/s */
|
||||
#define STREAM_NB_FRAMES ((int)(STREAM_DURATION * STREAM_FRAME_RATE))
|
||||
#define STREAM_PIX_FMT PIX_FMT_YUV420P /* default pix_fmt */
|
||||
|
||||
static int sws_flags = SWS_BICUBIC;
|
||||
|
||||
/**************************************************************/
|
||||
/* audio output */
|
||||
|
||||
float t, tincr, tincr2;
|
||||
int16_t *samples;
|
||||
uint8_t *audio_outbuf;
|
||||
int audio_outbuf_size;
|
||||
int audio_input_frame_size;
|
||||
|
||||
/*
|
||||
* add an audio output stream
|
||||
*/
|
||||
static AVStream *add_audio_stream(AVFormatContext *oc, enum CodecID codec_id)
|
||||
{
|
||||
AVCodecContext *c;
|
||||
AVStream *st;
|
||||
|
||||
st = av_new_stream(oc, 1);
|
||||
if (!st) {
|
||||
fprintf(stderr, "Could not alloc stream\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c = st->codec;
|
||||
c->codec_id = codec_id;
|
||||
c->codec_type = AVMEDIA_TYPE_AUDIO;
|
||||
|
||||
/* put sample parameters */
|
||||
c->sample_fmt = AV_SAMPLE_FMT_S16;
|
||||
c->bit_rate = 64000;
|
||||
c->sample_rate = 44100;
|
||||
c->channels = 2;
|
||||
|
||||
// some formats want stream headers to be separate
|
||||
if(oc->oformat->flags & AVFMT_GLOBALHEADER)
|
||||
c->flags |= CODEC_FLAG_GLOBAL_HEADER;
|
||||
|
||||
return st;
|
||||
}
|
||||
|
||||
static void open_audio(AVFormatContext *oc, AVStream *st)
|
||||
{
|
||||
AVCodecContext *c;
|
||||
AVCodec *codec;
|
||||
|
||||
c = st->codec;
|
||||
|
||||
/* find the audio encoder */
|
||||
codec = avcodec_find_encoder(c->codec_id);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* open it */
|
||||
if (avcodec_open(c, codec) < 0) {
|
||||
fprintf(stderr, "could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* init signal generator */
|
||||
t = 0;
|
||||
tincr = 2 * M_PI * 110.0 / c->sample_rate;
|
||||
/* increment frequency by 110 Hz per second */
|
||||
tincr2 = 2 * M_PI * 110.0 / c->sample_rate / c->sample_rate;
|
||||
|
||||
audio_outbuf_size = 10000;
|
||||
audio_outbuf = av_malloc(audio_outbuf_size);
|
||||
|
||||
/* ugly hack for PCM codecs (will be removed ASAP with new PCM
|
||||
support to compute the input frame size in samples */
|
||||
if (c->frame_size <= 1) {
|
||||
audio_input_frame_size = audio_outbuf_size / c->channels;
|
||||
switch(st->codec->codec_id) {
|
||||
case CODEC_ID_PCM_S16LE:
|
||||
case CODEC_ID_PCM_S16BE:
|
||||
case CODEC_ID_PCM_U16LE:
|
||||
case CODEC_ID_PCM_U16BE:
|
||||
audio_input_frame_size >>= 1;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
audio_input_frame_size = c->frame_size;
|
||||
}
|
||||
samples = av_malloc(audio_input_frame_size * 2 * c->channels);
|
||||
}
|
||||
|
||||
/* prepare a 16 bit dummy audio frame of 'frame_size' samples and
|
||||
'nb_channels' channels */
|
||||
static void get_audio_frame(int16_t *samples, int frame_size, int nb_channels)
|
||||
{
|
||||
int j, i, v;
|
||||
int16_t *q;
|
||||
|
||||
q = samples;
|
||||
for(j=0;j<frame_size;j++) {
|
||||
v = (int)(sin(t) * 10000);
|
||||
for(i = 0; i < nb_channels; i++)
|
||||
*q++ = v;
|
||||
t += tincr;
|
||||
tincr += tincr2;
|
||||
}
|
||||
}
|
||||
|
||||
static void write_audio_frame(AVFormatContext *oc, AVStream *st)
|
||||
{
|
||||
AVCodecContext *c;
|
||||
AVPacket pkt;
|
||||
av_init_packet(&pkt);
|
||||
|
||||
c = st->codec;
|
||||
|
||||
get_audio_frame(samples, audio_input_frame_size, c->channels);
|
||||
|
||||
pkt.size= avcodec_encode_audio(c, audio_outbuf, audio_outbuf_size, samples);
|
||||
|
||||
if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)
|
||||
pkt.pts= av_rescale_q(c->coded_frame->pts, c->time_base, st->time_base);
|
||||
pkt.flags |= AV_PKT_FLAG_KEY;
|
||||
pkt.stream_index= st->index;
|
||||
pkt.data= audio_outbuf;
|
||||
|
||||
/* write the compressed frame in the media file */
|
||||
if (av_interleaved_write_frame(oc, &pkt) != 0) {
|
||||
fprintf(stderr, "Error while writing audio frame\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
static void close_audio(AVFormatContext *oc, AVStream *st)
|
||||
{
|
||||
avcodec_close(st->codec);
|
||||
|
||||
av_free(samples);
|
||||
av_free(audio_outbuf);
|
||||
}
|
||||
|
||||
/**************************************************************/
|
||||
/* video output */
|
||||
|
||||
AVFrame *picture, *tmp_picture;
|
||||
uint8_t *video_outbuf;
|
||||
int frame_count, video_outbuf_size;
|
||||
|
||||
/* add a video output stream */
|
||||
static AVStream *add_video_stream(AVFormatContext *oc, enum CodecID codec_id)
|
||||
{
|
||||
AVCodecContext *c;
|
||||
AVStream *st;
|
||||
|
||||
st = av_new_stream(oc, 0);
|
||||
if (!st) {
|
||||
fprintf(stderr, "Could not alloc stream\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
c = st->codec;
|
||||
c->codec_id = codec_id;
|
||||
c->codec_type = AVMEDIA_TYPE_VIDEO;
|
||||
|
||||
/* put sample parameters */
|
||||
c->bit_rate = 400000;
|
||||
/* resolution must be a multiple of two */
|
||||
c->width = 352;
|
||||
c->height = 288;
|
||||
/* time base: this is the fundamental unit of time (in seconds) in terms
|
||||
of which frame timestamps are represented. for fixed-fps content,
|
||||
timebase should be 1/framerate and timestamp increments should be
|
||||
identically 1. */
|
||||
c->time_base.den = STREAM_FRAME_RATE;
|
||||
c->time_base.num = 1;
|
||||
c->gop_size = 12; /* emit one intra frame every twelve frames at most */
|
||||
c->pix_fmt = STREAM_PIX_FMT;
|
||||
if (c->codec_id == CODEC_ID_MPEG2VIDEO) {
|
||||
/* just for testing, we also add B frames */
|
||||
c->max_b_frames = 2;
|
||||
}
|
||||
if (c->codec_id == CODEC_ID_MPEG1VIDEO){
|
||||
/* Needed to avoid using macroblocks in which some coeffs overflow.
|
||||
This does not happen with normal video, it just happens here as
|
||||
the motion of the chroma plane does not match the luma plane. */
|
||||
c->mb_decision=2;
|
||||
}
|
||||
// some formats want stream headers to be separate
|
||||
if(oc->oformat->flags & AVFMT_GLOBALHEADER)
|
||||
c->flags |= CODEC_FLAG_GLOBAL_HEADER;
|
||||
|
||||
return st;
|
||||
}
|
||||
|
||||
static AVFrame *alloc_picture(enum PixelFormat pix_fmt, int width, int height)
|
||||
{
|
||||
AVFrame *picture;
|
||||
uint8_t *picture_buf;
|
||||
int size;
|
||||
|
||||
picture = avcodec_alloc_frame();
|
||||
if (!picture)
|
||||
return NULL;
|
||||
size = avpicture_get_size(pix_fmt, width, height);
|
||||
picture_buf = av_malloc(size);
|
||||
if (!picture_buf) {
|
||||
av_free(picture);
|
||||
return NULL;
|
||||
}
|
||||
avpicture_fill((AVPicture *)picture, picture_buf,
|
||||
pix_fmt, width, height);
|
||||
return picture;
|
||||
}
|
||||
|
||||
static void open_video(AVFormatContext *oc, AVStream *st)
|
||||
{
|
||||
AVCodec *codec;
|
||||
AVCodecContext *c;
|
||||
|
||||
c = st->codec;
|
||||
|
||||
/* find the video encoder */
|
||||
codec = avcodec_find_encoder(c->codec_id);
|
||||
if (!codec) {
|
||||
fprintf(stderr, "codec not found\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* open the codec */
|
||||
if (avcodec_open(c, codec) < 0) {
|
||||
fprintf(stderr, "could not open codec\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
video_outbuf = NULL;
|
||||
if (!(oc->oformat->flags & AVFMT_RAWPICTURE)) {
|
||||
/* allocate output buffer */
|
||||
/* XXX: API change will be done */
|
||||
/* buffers passed into lav* can be allocated any way you prefer,
|
||||
as long as they're aligned enough for the architecture, and
|
||||
they're freed appropriately (such as using av_free for buffers
|
||||
allocated with av_malloc) */
|
||||
video_outbuf_size = 200000;
|
||||
video_outbuf = av_malloc(video_outbuf_size);
|
||||
}
|
||||
|
||||
/* allocate the encoded raw picture */
|
||||
picture = alloc_picture(c->pix_fmt, c->width, c->height);
|
||||
if (!picture) {
|
||||
fprintf(stderr, "Could not allocate picture\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* if the output format is not YUV420P, then a temporary YUV420P
|
||||
picture is needed too. It is then converted to the required
|
||||
output format */
|
||||
tmp_picture = NULL;
|
||||
if (c->pix_fmt != PIX_FMT_YUV420P) {
|
||||
tmp_picture = alloc_picture(PIX_FMT_YUV420P, c->width, c->height);
|
||||
if (!tmp_picture) {
|
||||
fprintf(stderr, "Could not allocate temporary picture\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* prepare a dummy image */
|
||||
static void fill_yuv_image(AVFrame *pict, int frame_index, int width, int height)
|
||||
{
|
||||
int x, y, i;
|
||||
|
||||
i = frame_index;
|
||||
|
||||
/* Y */
|
||||
for(y=0;y<height;y++) {
|
||||
for(x=0;x<width;x++) {
|
||||
pict->data[0][y * pict->linesize[0] + x] = x + y + i * 3;
|
||||
}
|
||||
}
|
||||
|
||||
/* Cb and Cr */
|
||||
for(y=0;y<height/2;y++) {
|
||||
for(x=0;x<width/2;x++) {
|
||||
pict->data[1][y * pict->linesize[1] + x] = 128 + y + i * 2;
|
||||
pict->data[2][y * pict->linesize[2] + x] = 64 + x + i * 5;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void write_video_frame(AVFormatContext *oc, AVStream *st)
|
||||
{
|
||||
int out_size, ret;
|
||||
AVCodecContext *c;
|
||||
static struct SwsContext *img_convert_ctx;
|
||||
|
||||
c = st->codec;
|
||||
|
||||
if (frame_count >= STREAM_NB_FRAMES) {
|
||||
/* no more frame to compress. The codec has a latency of a few
|
||||
frames if using B frames, so we get the last frames by
|
||||
passing the same picture again */
|
||||
} else {
|
||||
if (c->pix_fmt != PIX_FMT_YUV420P) {
|
||||
/* as we only generate a YUV420P picture, we must convert it
|
||||
to the codec pixel format if needed */
|
||||
if (img_convert_ctx == NULL) {
|
||||
img_convert_ctx = sws_getContext(c->width, c->height,
|
||||
PIX_FMT_YUV420P,
|
||||
c->width, c->height,
|
||||
c->pix_fmt,
|
||||
sws_flags, NULL, NULL, NULL);
|
||||
if (img_convert_ctx == NULL) {
|
||||
fprintf(stderr, "Cannot initialize the conversion context\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
fill_yuv_image(tmp_picture, frame_count, c->width, c->height);
|
||||
sws_scale(img_convert_ctx, tmp_picture->data, tmp_picture->linesize,
|
||||
0, c->height, picture->data, picture->linesize);
|
||||
} else {
|
||||
fill_yuv_image(picture, frame_count, c->width, c->height);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
if (oc->oformat->flags & AVFMT_RAWPICTURE) {
|
||||
/* raw video case. The API will change slightly in the near
|
||||
futur for that */
|
||||
AVPacket pkt;
|
||||
av_init_packet(&pkt);
|
||||
|
||||
pkt.flags |= AV_PKT_FLAG_KEY;
|
||||
pkt.stream_index= st->index;
|
||||
pkt.data= (uint8_t *)picture;
|
||||
pkt.size= sizeof(AVPicture);
|
||||
|
||||
ret = av_interleaved_write_frame(oc, &pkt);
|
||||
} else {
|
||||
/* encode the image */
|
||||
out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, picture);
|
||||
/* if zero size, it means the image was buffered */
|
||||
if (out_size > 0) {
|
||||
AVPacket pkt;
|
||||
av_init_packet(&pkt);
|
||||
|
||||
if (c->coded_frame->pts != AV_NOPTS_VALUE)
|
||||
pkt.pts= av_rescale_q(c->coded_frame->pts, c->time_base, st->time_base);
|
||||
if(c->coded_frame->key_frame)
|
||||
pkt.flags |= AV_PKT_FLAG_KEY;
|
||||
pkt.stream_index= st->index;
|
||||
pkt.data= video_outbuf;
|
||||
pkt.size= out_size;
|
||||
|
||||
/* write the compressed frame in the media file */
|
||||
ret = av_interleaved_write_frame(oc, &pkt);
|
||||
} else {
|
||||
ret = 0;
|
||||
}
|
||||
}
|
||||
if (ret != 0) {
|
||||
fprintf(stderr, "Error while writing video frame\n");
|
||||
exit(1);
|
||||
}
|
||||
frame_count++;
|
||||
}
|
||||
|
||||
static void close_video(AVFormatContext *oc, AVStream *st)
|
||||
{
|
||||
avcodec_close(st->codec);
|
||||
av_free(picture->data[0]);
|
||||
av_free(picture);
|
||||
if (tmp_picture) {
|
||||
av_free(tmp_picture->data[0]);
|
||||
av_free(tmp_picture);
|
||||
}
|
||||
av_free(video_outbuf);
|
||||
}
|
||||
|
||||
/**************************************************************/
|
||||
/* media file output */
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
const char *filename;
|
||||
AVOutputFormat *fmt;
|
||||
AVFormatContext *oc;
|
||||
AVStream *audio_st, *video_st;
|
||||
double audio_pts, video_pts;
|
||||
int i;
|
||||
|
||||
/* initialize libavcodec, and register all codecs and formats */
|
||||
av_register_all();
|
||||
|
||||
if (argc != 2) {
|
||||
printf("usage: %s output_file\n"
|
||||
"API example program to output a media file with libavformat.\n"
|
||||
"The output format is automatically guessed according to the file extension.\n"
|
||||
"Raw images can also be output by using '%%d' in the filename\n"
|
||||
"\n", argv[0]);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
filename = argv[1];
|
||||
|
||||
/* allocate the output media context */
|
||||
avformat_alloc_output_context2(&oc, NULL, NULL, filename);
|
||||
if (!oc) {
|
||||
printf("Could not deduce output format from file extension: using MPEG.\n");
|
||||
avformat_alloc_output_context2(&oc, NULL, "mpeg", filename);
|
||||
}
|
||||
if (!oc) {
|
||||
exit(1);
|
||||
}
|
||||
fmt= oc->oformat;
|
||||
|
||||
/* add the audio and video streams using the default format codecs
|
||||
and initialize the codecs */
|
||||
video_st = NULL;
|
||||
audio_st = NULL;
|
||||
if (fmt->video_codec != CODEC_ID_NONE) {
|
||||
video_st = add_video_stream(oc, fmt->video_codec);
|
||||
}
|
||||
if (fmt->audio_codec != CODEC_ID_NONE) {
|
||||
audio_st = add_audio_stream(oc, fmt->audio_codec);
|
||||
}
|
||||
|
||||
av_dump_format(oc, 0, filename, 1);
|
||||
|
||||
/* now that all the parameters are set, we can open the audio and
|
||||
video codecs and allocate the necessary encode buffers */
|
||||
if (video_st)
|
||||
open_video(oc, video_st);
|
||||
if (audio_st)
|
||||
open_audio(oc, audio_st);
|
||||
|
||||
/* open the output file, if needed */
|
||||
if (!(fmt->flags & AVFMT_NOFILE)) {
|
||||
if (avio_open(&oc->pb, filename, AVIO_WRONLY) < 0) {
|
||||
fprintf(stderr, "Could not open '%s'\n", filename);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
/* write the stream header, if any */
|
||||
av_write_header(oc);
|
||||
|
||||
for(;;) {
|
||||
/* compute current audio and video time */
|
||||
if (audio_st)
|
||||
audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
|
||||
else
|
||||
audio_pts = 0.0;
|
||||
|
||||
if (video_st)
|
||||
video_pts = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
|
||||
else
|
||||
video_pts = 0.0;
|
||||
|
||||
if ((!audio_st || audio_pts >= STREAM_DURATION) &&
|
||||
(!video_st || video_pts >= STREAM_DURATION))
|
||||
break;
|
||||
|
||||
/* write interleaved audio and video frames */
|
||||
if (!video_st || (video_st && audio_st && audio_pts < video_pts)) {
|
||||
write_audio_frame(oc, audio_st);
|
||||
} else {
|
||||
write_video_frame(oc, video_st);
|
||||
}
|
||||
}
|
||||
|
||||
/* write the trailer, if any. the trailer must be written
|
||||
* before you close the CodecContexts open when you wrote the
|
||||
* header; otherwise write_trailer may try to use memory that
|
||||
* was freed on av_codec_close() */
|
||||
av_write_trailer(oc);
|
||||
|
||||
/* close each codec */
|
||||
if (video_st)
|
||||
close_video(oc, video_st);
|
||||
if (audio_st)
|
||||
close_audio(oc, audio_st);
|
||||
|
||||
/* free the streams */
|
||||
for(i = 0; i < oc->nb_streams; i++) {
|
||||
av_freep(&oc->streams[i]->codec);
|
||||
av_freep(&oc->streams[i]);
|
||||
}
|
||||
|
||||
if (!(fmt->flags & AVFMT_NOFILE)) {
|
||||
/* close the output file */
|
||||
avio_close(oc->pb);
|
||||
}
|
||||
|
||||
/* free the stream */
|
||||
av_free(oc);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -1,670 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2003 Fabrice Bellard
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* libavformat API example.
|
||||
*
|
||||
* Output a media file in any supported libavformat format. The default
|
||||
* codecs are used.
|
||||
* @example muxing.c
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <math.h>
|
||||
|
||||
#include <libavutil/avassert.h>
|
||||
#include <libavutil/channel_layout.h>
|
||||
#include <libavutil/opt.h>
|
||||
#include <libavutil/mathematics.h>
|
||||
#include <libavutil/timestamp.h>
|
||||
#include <libavformat/avformat.h>
|
||||
#include <libswscale/swscale.h>
|
||||
#include <libswresample/swresample.h>
|
||||
|
||||
#define STREAM_DURATION 10.0
|
||||
#define STREAM_FRAME_RATE 25 /* 25 images/s */
|
||||
#define STREAM_PIX_FMT AV_PIX_FMT_YUV420P /* default pix_fmt */
|
||||
|
||||
#define SCALE_FLAGS SWS_BICUBIC
|
||||
|
||||
// a wrapper around a single output AVStream
|
||||
typedef struct OutputStream {
|
||||
AVStream *st;
|
||||
|
||||
/* pts of the next frame that will be generated */
|
||||
int64_t next_pts;
|
||||
int samples_count;
|
||||
|
||||
AVFrame *frame;
|
||||
AVFrame *tmp_frame;
|
||||
|
||||
float t, tincr, tincr2;
|
||||
|
||||
struct SwsContext *sws_ctx;
|
||||
struct SwrContext *swr_ctx;
|
||||
} OutputStream;
|
||||
|
||||
static void log_packet(const AVFormatContext *fmt_ctx, const AVPacket *pkt)
|
||||
{
|
||||
AVRational *time_base = &fmt_ctx->streams[pkt->stream_index]->time_base;
|
||||
|
||||
printf("pts:%s pts_time:%s dts:%s dts_time:%s duration:%s duration_time:%s stream_index:%d\n",
|
||||
av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, time_base),
|
||||
av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, time_base),
|
||||
av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, time_base),
|
||||
pkt->stream_index);
|
||||
}
|
||||
|
||||
static int write_frame(AVFormatContext *fmt_ctx, const AVRational *time_base, AVStream *st, AVPacket *pkt)
|
||||
{
|
||||
/* rescale output packet timestamp values from codec to stream timebase */
|
||||
av_packet_rescale_ts(pkt, *time_base, st->time_base);
|
||||
pkt->stream_index = st->index;
|
||||
|
||||
/* Write the compressed frame to the media file. */
|
||||
log_packet(fmt_ctx, pkt);
|
||||
return av_interleaved_write_frame(fmt_ctx, pkt);
|
||||
}
|
||||
|
||||
/* Add an output stream. */
|
||||
static void add_stream(OutputStream *ost, AVFormatContext *oc,
|
||||
AVCodec **codec,
|
||||
enum AVCodecID codec_id)
|
||||
{
|
||||
AVCodecContext *c;
|
||||
int i;
|
||||
|
||||
/* find the encoder */
|
||||
*codec = avcodec_find_encoder(codec_id);
|
||||
if (!(*codec)) {
|
||||
fprintf(stderr, "Could not find encoder for '%s'\n",
|
||||
avcodec_get_name(codec_id));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
ost->st = avformat_new_stream(oc, *codec);
|
||||
if (!ost->st) {
|
||||
fprintf(stderr, "Could not allocate stream\n");
|
||||
exit(1);
|
||||
}
|
||||
ost->st->id = oc->nb_streams-1;
|
||||
c = ost->st->codec;
|
||||
|
||||
switch ((*codec)->type) {
|
||||
case AVMEDIA_TYPE_AUDIO:
|
||||
c->sample_fmt = (*codec)->sample_fmts ?
|
||||
(*codec)->sample_fmts[0] : AV_SAMPLE_FMT_FLTP;
|
||||
c->bit_rate = 64000;
|
||||
c->sample_rate = 44100;
|
||||
if ((*codec)->supported_samplerates) {
|
||||
c->sample_rate = (*codec)->supported_samplerates[0];
|
||||
for (i = 0; (*codec)->supported_samplerates[i]; i++) {
|
||||
if ((*codec)->supported_samplerates[i] == 44100)
|
||||
c->sample_rate = 44100;
|
||||
}
|
||||
}
|
||||
c->channels = av_get_channel_layout_nb_channels(c->channel_layout);
|
||||
c->channel_layout = AV_CH_LAYOUT_STEREO;
|
||||
if ((*codec)->channel_layouts) {
|
||||
c->channel_layout = (*codec)->channel_layouts[0];
|
||||
for (i = 0; (*codec)->channel_layouts[i]; i++) {
|
||||
if ((*codec)->channel_layouts[i] == AV_CH_LAYOUT_STEREO)
|
||||
c->channel_layout = AV_CH_LAYOUT_STEREO;
|
||||
}
|
||||
}
|
||||
c->channels = av_get_channel_layout_nb_channels(c->channel_layout);
|
||||
ost->st->time_base = (AVRational){ 1, c->sample_rate };
|
||||
break;
|
||||
|
||||
case AVMEDIA_TYPE_VIDEO:
|
||||
c->codec_id = codec_id;
|
||||
|
||||
c->bit_rate = 400000;
|
||||
/* Resolution must be a multiple of two. */
|
||||
c->width = 352;
|
||||
c->height = 288;
|
||||
/* timebase: This is the fundamental unit of time (in seconds) in terms
|
||||
* of which frame timestamps are represented. For fixed-fps content,
|
||||
* timebase should be 1/framerate and timestamp increments should be
|
||||
* identical to 1. */
|
||||
ost->st->time_base = (AVRational){ 1, STREAM_FRAME_RATE };
|
||||
c->time_base = ost->st->time_base;
|
||||
|
||||
c->gop_size = 12; /* emit one intra frame every twelve frames at most */
|
||||
c->pix_fmt = STREAM_PIX_FMT;
|
||||
if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
|
||||
/* just for testing, we also add B frames */
|
||||
c->max_b_frames = 2;
|
||||
}
|
||||
if (c->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
|
||||
/* Needed to avoid using macroblocks in which some coeffs overflow.
|
||||
* This does not happen with normal video, it just happens here as
|
||||
* the motion of the chroma plane does not match the luma plane. */
|
||||
c->mb_decision = 2;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
/* Some formats want stream headers to be separate. */
|
||||
if (oc->oformat->flags & AVFMT_GLOBALHEADER)
|
||||
c->flags |= CODEC_FLAG_GLOBAL_HEADER;
|
||||
}
|
||||
|
||||
/**************************************************************/
|
||||
/* audio output */
|
||||
|
||||
static AVFrame *alloc_audio_frame(enum AVSampleFormat sample_fmt,
|
||||
uint64_t channel_layout,
|
||||
int sample_rate, int nb_samples)
|
||||
{
|
||||
AVFrame *frame = av_frame_alloc();
|
||||
int ret;
|
||||
|
||||
if (!frame) {
|
||||
fprintf(stderr, "Error allocating an audio frame\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
frame->format = sample_fmt;
|
||||
frame->channel_layout = channel_layout;
|
||||
frame->sample_rate = sample_rate;
|
||||
frame->nb_samples = nb_samples;
|
||||
|
||||
if (nb_samples) {
|
||||
ret = av_frame_get_buffer(frame, 0);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error allocating an audio buffer\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
return frame;
|
||||
}
|
||||
|
||||
static void open_audio(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
|
||||
{
|
||||
AVCodecContext *c;
|
||||
int nb_samples;
|
||||
int ret;
|
||||
AVDictionary *opt = NULL;
|
||||
|
||||
c = ost->st->codec;
|
||||
|
||||
/* open it */
|
||||
av_dict_copy(&opt, opt_arg, 0);
|
||||
ret = avcodec_open2(c, codec, &opt);
|
||||
av_dict_free(&opt);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not open audio codec: %s\n", av_err2str(ret));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* init signal generator */
|
||||
ost->t = 0;
|
||||
ost->tincr = 2 * M_PI * 110.0 / c->sample_rate;
|
||||
/* increment frequency by 110 Hz per second */
|
||||
ost->tincr2 = 2 * M_PI * 110.0 / c->sample_rate / c->sample_rate;
|
||||
|
||||
if (c->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)
|
||||
nb_samples = 10000;
|
||||
else
|
||||
nb_samples = c->frame_size;
|
||||
|
||||
ost->frame = alloc_audio_frame(c->sample_fmt, c->channel_layout,
|
||||
c->sample_rate, nb_samples);
|
||||
ost->tmp_frame = alloc_audio_frame(AV_SAMPLE_FMT_S16, c->channel_layout,
|
||||
c->sample_rate, nb_samples);
|
||||
|
||||
/* create resampler context */
|
||||
ost->swr_ctx = swr_alloc();
|
||||
if (!ost->swr_ctx) {
|
||||
fprintf(stderr, "Could not allocate resampler context\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* set options */
|
||||
av_opt_set_int (ost->swr_ctx, "in_channel_count", c->channels, 0);
|
||||
av_opt_set_int (ost->swr_ctx, "in_sample_rate", c->sample_rate, 0);
|
||||
av_opt_set_sample_fmt(ost->swr_ctx, "in_sample_fmt", AV_SAMPLE_FMT_S16, 0);
|
||||
av_opt_set_int (ost->swr_ctx, "out_channel_count", c->channels, 0);
|
||||
av_opt_set_int (ost->swr_ctx, "out_sample_rate", c->sample_rate, 0);
|
||||
av_opt_set_sample_fmt(ost->swr_ctx, "out_sample_fmt", c->sample_fmt, 0);
|
||||
|
||||
/* initialize the resampling context */
|
||||
if ((ret = swr_init(ost->swr_ctx)) < 0) {
|
||||
fprintf(stderr, "Failed to initialize the resampling context\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
/* Prepare a 16 bit dummy audio frame of 'frame_size' samples and
|
||||
* 'nb_channels' channels. */
|
||||
static AVFrame *get_audio_frame(OutputStream *ost)
|
||||
{
|
||||
AVFrame *frame = ost->tmp_frame;
|
||||
int j, i, v;
|
||||
int16_t *q = (int16_t*)frame->data[0];
|
||||
|
||||
/* check if we want to generate more frames */
|
||||
if (av_compare_ts(ost->next_pts, ost->st->codec->time_base,
|
||||
STREAM_DURATION, (AVRational){ 1, 1 }) >= 0)
|
||||
return NULL;
|
||||
|
||||
for (j = 0; j <frame->nb_samples; j++) {
|
||||
v = (int)(sin(ost->t) * 10000);
|
||||
for (i = 0; i < ost->st->codec->channels; i++)
|
||||
*q++ = v;
|
||||
ost->t += ost->tincr;
|
||||
ost->tincr += ost->tincr2;
|
||||
}
|
||||
|
||||
frame->pts = ost->next_pts;
|
||||
ost->next_pts += frame->nb_samples;
|
||||
|
||||
return frame;
|
||||
}
|
||||
|
||||
/*
|
||||
* encode one audio frame and send it to the muxer
|
||||
* return 1 when encoding is finished, 0 otherwise
|
||||
*/
|
||||
static int write_audio_frame(AVFormatContext *oc, OutputStream *ost)
|
||||
{
|
||||
AVCodecContext *c;
|
||||
AVPacket pkt = { 0 }; // data and size must be 0;
|
||||
AVFrame *frame;
|
||||
int ret;
|
||||
int got_packet;
|
||||
int dst_nb_samples;
|
||||
|
||||
av_init_packet(&pkt);
|
||||
c = ost->st->codec;
|
||||
|
||||
frame = get_audio_frame(ost);
|
||||
|
||||
if (frame) {
|
||||
/* convert samples from native format to destination codec format, using the resampler */
|
||||
/* compute destination number of samples */
|
||||
dst_nb_samples = av_rescale_rnd(swr_get_delay(ost->swr_ctx, c->sample_rate) + frame->nb_samples,
|
||||
c->sample_rate, c->sample_rate, AV_ROUND_UP);
|
||||
av_assert0(dst_nb_samples == frame->nb_samples);
|
||||
|
||||
/* when we pass a frame to the encoder, it may keep a reference to it
|
||||
* internally;
|
||||
* make sure we do not overwrite it here
|
||||
*/
|
||||
ret = av_frame_make_writable(ost->frame);
|
||||
if (ret < 0)
|
||||
exit(1);
|
||||
|
||||
/* convert to destination format */
|
||||
ret = swr_convert(ost->swr_ctx,
|
||||
ost->frame->data, dst_nb_samples,
|
||||
(const uint8_t **)frame->data, frame->nb_samples);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error while converting\n");
|
||||
exit(1);
|
||||
}
|
||||
frame = ost->frame;
|
||||
|
||||
frame->pts = av_rescale_q(ost->samples_count, (AVRational){1, c->sample_rate}, c->time_base);
|
||||
ost->samples_count += dst_nb_samples;
|
||||
}
|
||||
|
||||
ret = avcodec_encode_audio2(c, &pkt, frame, &got_packet);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error encoding audio frame: %s\n", av_err2str(ret));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (got_packet) {
|
||||
ret = write_frame(oc, &c->time_base, ost->st, &pkt);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error while writing audio frame: %s\n",
|
||||
av_err2str(ret));
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
return (frame || got_packet) ? 0 : 1;
|
||||
}
|
||||
|
||||
/**************************************************************/
|
||||
/* video output */
|
||||
|
||||
static AVFrame *alloc_picture(enum AVPixelFormat pix_fmt, int width, int height)
|
||||
{
|
||||
AVFrame *picture;
|
||||
int ret;
|
||||
|
||||
picture = av_frame_alloc();
|
||||
if (!picture)
|
||||
return NULL;
|
||||
|
||||
picture->format = pix_fmt;
|
||||
picture->width = width;
|
||||
picture->height = height;
|
||||
|
||||
/* allocate the buffers for the frame data */
|
||||
ret = av_frame_get_buffer(picture, 32);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not allocate frame data.\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
return picture;
|
||||
}
|
||||
|
||||
static void open_video(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
|
||||
{
|
||||
int ret;
|
||||
AVCodecContext *c = ost->st->codec;
|
||||
AVDictionary *opt = NULL;
|
||||
|
||||
av_dict_copy(&opt, opt_arg, 0);
|
||||
|
||||
/* open the codec */
|
||||
ret = avcodec_open2(c, codec, &opt);
|
||||
av_dict_free(&opt);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not open video codec: %s\n", av_err2str(ret));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* allocate and init a re-usable frame */
|
||||
ost->frame = alloc_picture(c->pix_fmt, c->width, c->height);
|
||||
if (!ost->frame) {
|
||||
fprintf(stderr, "Could not allocate video frame\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* If the output format is not YUV420P, then a temporary YUV420P
|
||||
* picture is needed too. It is then converted to the required
|
||||
* output format. */
|
||||
ost->tmp_frame = NULL;
|
||||
if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
|
||||
ost->tmp_frame = alloc_picture(AV_PIX_FMT_YUV420P, c->width, c->height);
|
||||
if (!ost->tmp_frame) {
|
||||
fprintf(stderr, "Could not allocate temporary picture\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Prepare a dummy image. */
|
||||
static void fill_yuv_image(AVFrame *pict, int frame_index,
|
||||
int width, int height)
|
||||
{
|
||||
int x, y, i, ret;
|
||||
|
||||
/* when we pass a frame to the encoder, it may keep a reference to it
|
||||
* internally;
|
||||
* make sure we do not overwrite it here
|
||||
*/
|
||||
ret = av_frame_make_writable(pict);
|
||||
if (ret < 0)
|
||||
exit(1);
|
||||
|
||||
i = frame_index;
|
||||
|
||||
/* Y */
|
||||
for (y = 0; y < height; y++)
|
||||
for (x = 0; x < width; x++)
|
||||
pict->data[0][y * pict->linesize[0] + x] = x + y + i * 3;
|
||||
|
||||
/* Cb and Cr */
|
||||
for (y = 0; y < height / 2; y++) {
|
||||
for (x = 0; x < width / 2; x++) {
|
||||
pict->data[1][y * pict->linesize[1] + x] = 128 + y + i * 2;
|
||||
pict->data[2][y * pict->linesize[2] + x] = 64 + x + i * 5;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static AVFrame *get_video_frame(OutputStream *ost)
|
||||
{
|
||||
AVCodecContext *c = ost->st->codec;
|
||||
|
||||
/* check if we want to generate more frames */
|
||||
if (av_compare_ts(ost->next_pts, ost->st->codec->time_base,
|
||||
STREAM_DURATION, (AVRational){ 1, 1 }) >= 0)
|
||||
return NULL;
|
||||
|
||||
if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
|
||||
/* as we only generate a YUV420P picture, we must convert it
|
||||
* to the codec pixel format if needed */
|
||||
if (!ost->sws_ctx) {
|
||||
ost->sws_ctx = sws_getContext(c->width, c->height,
|
||||
AV_PIX_FMT_YUV420P,
|
||||
c->width, c->height,
|
||||
c->pix_fmt,
|
||||
SCALE_FLAGS, NULL, NULL, NULL);
|
||||
if (!ost->sws_ctx) {
|
||||
fprintf(stderr,
|
||||
"Could not initialize the conversion context\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
fill_yuv_image(ost->tmp_frame, ost->next_pts, c->width, c->height);
|
||||
sws_scale(ost->sws_ctx,
|
||||
(const uint8_t * const *)ost->tmp_frame->data, ost->tmp_frame->linesize,
|
||||
0, c->height, ost->frame->data, ost->frame->linesize);
|
||||
} else {
|
||||
fill_yuv_image(ost->frame, ost->next_pts, c->width, c->height);
|
||||
}
|
||||
|
||||
ost->frame->pts = ost->next_pts++;
|
||||
|
||||
return ost->frame;
|
||||
}
|
||||
|
||||
/*
|
||||
* encode one video frame and send it to the muxer
|
||||
* return 1 when encoding is finished, 0 otherwise
|
||||
*/
|
||||
static int write_video_frame(AVFormatContext *oc, OutputStream *ost)
|
||||
{
|
||||
int ret;
|
||||
AVCodecContext *c;
|
||||
AVFrame *frame;
|
||||
int got_packet = 0;
|
||||
|
||||
c = ost->st->codec;
|
||||
|
||||
frame = get_video_frame(ost);
|
||||
|
||||
if (oc->oformat->flags & AVFMT_RAWPICTURE) {
|
||||
/* a hack to avoid data copy with some raw video muxers */
|
||||
AVPacket pkt;
|
||||
av_init_packet(&pkt);
|
||||
|
||||
if (!frame)
|
||||
return 1;
|
||||
|
||||
pkt.flags |= AV_PKT_FLAG_KEY;
|
||||
pkt.stream_index = ost->st->index;
|
||||
pkt.data = (uint8_t *)frame;
|
||||
pkt.size = sizeof(AVPicture);
|
||||
|
||||
pkt.pts = pkt.dts = frame->pts;
|
||||
av_packet_rescale_ts(&pkt, c->time_base, ost->st->time_base);
|
||||
|
||||
ret = av_interleaved_write_frame(oc, &pkt);
|
||||
} else {
|
||||
AVPacket pkt = { 0 };
|
||||
av_init_packet(&pkt);
|
||||
|
||||
/* encode the image */
|
||||
ret = avcodec_encode_video2(c, &pkt, frame, &got_packet);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error encoding video frame: %s\n", av_err2str(ret));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (got_packet) {
|
||||
ret = write_frame(oc, &c->time_base, ost->st, &pkt);
|
||||
} else {
|
||||
ret = 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
return (frame || got_packet) ? 0 : 1;
|
||||
}
|
||||
|
||||
static void close_stream(AVFormatContext *oc, OutputStream *ost)
|
||||
{
|
||||
avcodec_close(ost->st->codec);
|
||||
av_frame_free(&ost->frame);
|
||||
av_frame_free(&ost->tmp_frame);
|
||||
sws_freeContext(ost->sws_ctx);
|
||||
swr_free(&ost->swr_ctx);
|
||||
}
|
||||
|
||||
/**************************************************************/
|
||||
/* media file output */
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
OutputStream video_st = { 0 }, audio_st = { 0 };
|
||||
const char *filename;
|
||||
AVOutputFormat *fmt;
|
||||
AVFormatContext *oc;
|
||||
AVCodec *audio_codec, *video_codec;
|
||||
int ret;
|
||||
int have_video = 0, have_audio = 0;
|
||||
int encode_video = 0, encode_audio = 0;
|
||||
AVDictionary *opt = NULL;
|
||||
|
||||
/* Initialize libavcodec, and register all codecs and formats. */
|
||||
av_register_all();
|
||||
|
||||
if (argc < 2) {
|
||||
printf("usage: %s output_file\n"
|
||||
"API example program to output a media file with libavformat.\n"
|
||||
"This program generates a synthetic audio and video stream, encodes and\n"
|
||||
"muxes them into a file named output_file.\n"
|
||||
"The output format is automatically guessed according to the file extension.\n"
|
||||
"Raw images can also be output by using '%%d' in the filename.\n"
|
||||
"\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
filename = argv[1];
|
||||
if (argc > 3 && !strcmp(argv[2], "-flags")) {
|
||||
av_dict_set(&opt, argv[2]+1, argv[3], 0);
|
||||
}
|
||||
|
||||
/* allocate the output media context */
|
||||
avformat_alloc_output_context2(&oc, NULL, NULL, filename);
|
||||
if (!oc) {
|
||||
printf("Could not deduce output format from file extension: using MPEG.\n");
|
||||
avformat_alloc_output_context2(&oc, NULL, "mpeg", filename);
|
||||
}
|
||||
if (!oc)
|
||||
return 1;
|
||||
|
||||
fmt = oc->oformat;
|
||||
|
||||
/* Add the audio and video streams using the default format codecs
|
||||
* and initialize the codecs. */
|
||||
if (fmt->video_codec != AV_CODEC_ID_NONE) {
|
||||
add_stream(&video_st, oc, &video_codec, fmt->video_codec);
|
||||
have_video = 1;
|
||||
encode_video = 1;
|
||||
}
|
||||
if (fmt->audio_codec != AV_CODEC_ID_NONE) {
|
||||
add_stream(&audio_st, oc, &audio_codec, fmt->audio_codec);
|
||||
have_audio = 1;
|
||||
encode_audio = 1;
|
||||
}
|
||||
|
||||
/* Now that all the parameters are set, we can open the audio and
|
||||
* video codecs and allocate the necessary encode buffers. */
|
||||
if (have_video)
|
||||
open_video(oc, video_codec, &video_st, opt);
|
||||
|
||||
if (have_audio)
|
||||
open_audio(oc, audio_codec, &audio_st, opt);
|
||||
|
||||
av_dump_format(oc, 0, filename, 1);
|
||||
|
||||
/* open the output file, if needed */
|
||||
if (!(fmt->flags & AVFMT_NOFILE)) {
|
||||
ret = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not open '%s': %s\n", filename,
|
||||
av_err2str(ret));
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Write the stream header, if any. */
|
||||
ret = avformat_write_header(oc, &opt);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error occurred when opening output file: %s\n",
|
||||
av_err2str(ret));
|
||||
return 1;
|
||||
}
|
||||
|
||||
while (encode_video || encode_audio) {
|
||||
/* select the stream to encode */
|
||||
if (encode_video &&
|
||||
(!encode_audio || av_compare_ts(video_st.next_pts, video_st.st->codec->time_base,
|
||||
audio_st.next_pts, audio_st.st->codec->time_base) <= 0)) {
|
||||
encode_video = !write_video_frame(oc, &video_st);
|
||||
} else {
|
||||
encode_audio = !write_audio_frame(oc, &audio_st);
|
||||
}
|
||||
}
|
||||
|
||||
/* Write the trailer, if any. The trailer must be written before you
|
||||
* close the CodecContexts open when you wrote the header; otherwise
|
||||
* av_write_trailer() may try to use memory that was freed on
|
||||
* av_codec_close(). */
|
||||
av_write_trailer(oc);
|
||||
|
||||
/* Close each codec. */
|
||||
if (have_video)
|
||||
close_stream(oc, &video_st);
|
||||
if (have_audio)
|
||||
close_stream(oc, &audio_st);
|
||||
|
||||
if (!(fmt->flags & AVFMT_NOFILE))
|
||||
/* Close the output file. */
|
||||
avio_close(oc->pb);
|
||||
|
||||
/* free the stream */
|
||||
avformat_free_context(oc);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -1,165 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2013 Stefano Sabatini
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* libavformat/libavcodec demuxing and muxing API example.
|
||||
*
|
||||
* Remux streams from one container format to another.
|
||||
* @example remuxing.c
|
||||
*/
|
||||
|
||||
#include <libavutil/timestamp.h>
|
||||
#include <libavformat/avformat.h>
|
||||
|
||||
static void log_packet(const AVFormatContext *fmt_ctx, const AVPacket *pkt, const char *tag)
|
||||
{
|
||||
AVRational *time_base = &fmt_ctx->streams[pkt->stream_index]->time_base;
|
||||
|
||||
printf("%s: pts:%s pts_time:%s dts:%s dts_time:%s duration:%s duration_time:%s stream_index:%d\n",
|
||||
tag,
|
||||
av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, time_base),
|
||||
av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, time_base),
|
||||
av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, time_base),
|
||||
pkt->stream_index);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
AVOutputFormat *ofmt = NULL;
|
||||
AVFormatContext *ifmt_ctx = NULL, *ofmt_ctx = NULL;
|
||||
AVPacket pkt;
|
||||
const char *in_filename, *out_filename;
|
||||
int ret, i;
|
||||
|
||||
if (argc < 3) {
|
||||
printf("usage: %s input output\n"
|
||||
"API example program to remux a media file with libavformat and libavcodec.\n"
|
||||
"The output format is guessed according to the file extension.\n"
|
||||
"\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
in_filename = argv[1];
|
||||
out_filename = argv[2];
|
||||
|
||||
av_register_all();
|
||||
|
||||
if ((ret = avformat_open_input(&ifmt_ctx, in_filename, 0, 0)) < 0) {
|
||||
fprintf(stderr, "Could not open input file '%s'", in_filename);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if ((ret = avformat_find_stream_info(ifmt_ctx, 0)) < 0) {
|
||||
fprintf(stderr, "Failed to retrieve input stream information");
|
||||
goto end;
|
||||
}
|
||||
|
||||
av_dump_format(ifmt_ctx, 0, in_filename, 0);
|
||||
|
||||
avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, out_filename);
|
||||
if (!ofmt_ctx) {
|
||||
fprintf(stderr, "Could not create output context\n");
|
||||
ret = AVERROR_UNKNOWN;
|
||||
goto end;
|
||||
}
|
||||
|
||||
ofmt = ofmt_ctx->oformat;
|
||||
|
||||
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
|
||||
AVStream *in_stream = ifmt_ctx->streams[i];
|
||||
AVStream *out_stream = avformat_new_stream(ofmt_ctx, in_stream->codec->codec);
|
||||
if (!out_stream) {
|
||||
fprintf(stderr, "Failed allocating output stream\n");
|
||||
ret = AVERROR_UNKNOWN;
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = avcodec_copy_context(out_stream->codec, in_stream->codec);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Failed to copy context from input to output stream codec context\n");
|
||||
goto end;
|
||||
}
|
||||
out_stream->codec->codec_tag = 0;
|
||||
if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
|
||||
out_stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
|
||||
}
|
||||
av_dump_format(ofmt_ctx, 0, out_filename, 1);
|
||||
|
||||
if (!(ofmt->flags & AVFMT_NOFILE)) {
|
||||
ret = avio_open(&ofmt_ctx->pb, out_filename, AVIO_FLAG_WRITE);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not open output file '%s'", out_filename);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
|
||||
ret = avformat_write_header(ofmt_ctx, NULL);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error occurred when opening output file\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
while (1) {
|
||||
AVStream *in_stream, *out_stream;
|
||||
|
||||
ret = av_read_frame(ifmt_ctx, &pkt);
|
||||
if (ret < 0)
|
||||
break;
|
||||
|
||||
in_stream = ifmt_ctx->streams[pkt.stream_index];
|
||||
out_stream = ofmt_ctx->streams[pkt.stream_index];
|
||||
|
||||
log_packet(ifmt_ctx, &pkt, "in");
|
||||
|
||||
/* copy packet */
|
||||
pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
|
||||
pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
|
||||
pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base);
|
||||
pkt.pos = -1;
|
||||
log_packet(ofmt_ctx, &pkt, "out");
|
||||
|
||||
ret = av_interleaved_write_frame(ofmt_ctx, &pkt);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error muxing packet\n");
|
||||
break;
|
||||
}
|
||||
av_free_packet(&pkt);
|
||||
}
|
||||
|
||||
av_write_trailer(ofmt_ctx);
|
||||
end:
|
||||
|
||||
avformat_close_input(&ifmt_ctx);
|
||||
|
||||
/* close output */
|
||||
if (ofmt_ctx && !(ofmt->flags & AVFMT_NOFILE))
|
||||
avio_close(ofmt_ctx->pb);
|
||||
avformat_free_context(ofmt_ctx);
|
||||
|
||||
if (ret < 0 && ret != AVERROR_EOF) {
|
||||
fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -1,214 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Stefano Sabatini
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @example resampling_audio.c
|
||||
* libswresample API use example.
|
||||
*/
|
||||
|
||||
#include <libavutil/opt.h>
|
||||
#include <libavutil/channel_layout.h>
|
||||
#include <libavutil/samplefmt.h>
|
||||
#include <libswresample/swresample.h>
|
||||
|
||||
static int get_format_from_sample_fmt(const char **fmt,
|
||||
enum AVSampleFormat sample_fmt)
|
||||
{
|
||||
int i;
|
||||
struct sample_fmt_entry {
|
||||
enum AVSampleFormat sample_fmt; const char *fmt_be, *fmt_le;
|
||||
} sample_fmt_entries[] = {
|
||||
{ AV_SAMPLE_FMT_U8, "u8", "u8" },
|
||||
{ AV_SAMPLE_FMT_S16, "s16be", "s16le" },
|
||||
{ AV_SAMPLE_FMT_S32, "s32be", "s32le" },
|
||||
{ AV_SAMPLE_FMT_FLT, "f32be", "f32le" },
|
||||
{ AV_SAMPLE_FMT_DBL, "f64be", "f64le" },
|
||||
};
|
||||
*fmt = NULL;
|
||||
|
||||
for (i = 0; i < FF_ARRAY_ELEMS(sample_fmt_entries); i++) {
|
||||
struct sample_fmt_entry *entry = &sample_fmt_entries[i];
|
||||
if (sample_fmt == entry->sample_fmt) {
|
||||
*fmt = AV_NE(entry->fmt_be, entry->fmt_le);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
fprintf(stderr,
|
||||
"Sample format %s not supported as output format\n",
|
||||
av_get_sample_fmt_name(sample_fmt));
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
/**
|
||||
* Fill dst buffer with nb_samples, generated starting from t.
|
||||
*/
|
||||
static void fill_samples(double *dst, int nb_samples, int nb_channels, int sample_rate, double *t)
|
||||
{
|
||||
int i, j;
|
||||
double tincr = 1.0 / sample_rate, *dstp = dst;
|
||||
const double c = 2 * M_PI * 440.0;
|
||||
|
||||
/* generate sin tone with 440Hz frequency and duplicated channels */
|
||||
for (i = 0; i < nb_samples; i++) {
|
||||
*dstp = sin(c * *t);
|
||||
for (j = 1; j < nb_channels; j++)
|
||||
dstp[j] = dstp[0];
|
||||
dstp += nb_channels;
|
||||
*t += tincr;
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int64_t src_ch_layout = AV_CH_LAYOUT_STEREO, dst_ch_layout = AV_CH_LAYOUT_SURROUND;
|
||||
int src_rate = 48000, dst_rate = 44100;
|
||||
uint8_t **src_data = NULL, **dst_data = NULL;
|
||||
int src_nb_channels = 0, dst_nb_channels = 0;
|
||||
int src_linesize, dst_linesize;
|
||||
int src_nb_samples = 1024, dst_nb_samples, max_dst_nb_samples;
|
||||
enum AVSampleFormat src_sample_fmt = AV_SAMPLE_FMT_DBL, dst_sample_fmt = AV_SAMPLE_FMT_S16;
|
||||
const char *dst_filename = NULL;
|
||||
FILE *dst_file;
|
||||
int dst_bufsize;
|
||||
const char *fmt;
|
||||
struct SwrContext *swr_ctx;
|
||||
double t;
|
||||
int ret;
|
||||
|
||||
if (argc != 2) {
|
||||
fprintf(stderr, "Usage: %s output_file\n"
|
||||
"API example program to show how to resample an audio stream with libswresample.\n"
|
||||
"This program generates a series of audio frames, resamples them to a specified "
|
||||
"output format and rate and saves them to an output file named output_file.\n",
|
||||
argv[0]);
|
||||
exit(1);
|
||||
}
|
||||
dst_filename = argv[1];
|
||||
|
||||
dst_file = fopen(dst_filename, "wb");
|
||||
if (!dst_file) {
|
||||
fprintf(stderr, "Could not open destination file %s\n", dst_filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* create resampler context */
|
||||
swr_ctx = swr_alloc();
|
||||
if (!swr_ctx) {
|
||||
fprintf(stderr, "Could not allocate resampler context\n");
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* set options */
|
||||
av_opt_set_int(swr_ctx, "in_channel_layout", src_ch_layout, 0);
|
||||
av_opt_set_int(swr_ctx, "in_sample_rate", src_rate, 0);
|
||||
av_opt_set_sample_fmt(swr_ctx, "in_sample_fmt", src_sample_fmt, 0);
|
||||
|
||||
av_opt_set_int(swr_ctx, "out_channel_layout", dst_ch_layout, 0);
|
||||
av_opt_set_int(swr_ctx, "out_sample_rate", dst_rate, 0);
|
||||
av_opt_set_sample_fmt(swr_ctx, "out_sample_fmt", dst_sample_fmt, 0);
|
||||
|
||||
/* initialize the resampling context */
|
||||
if ((ret = swr_init(swr_ctx)) < 0) {
|
||||
fprintf(stderr, "Failed to initialize the resampling context\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* allocate source and destination samples buffers */
|
||||
|
||||
src_nb_channels = av_get_channel_layout_nb_channels(src_ch_layout);
|
||||
ret = av_samples_alloc_array_and_samples(&src_data, &src_linesize, src_nb_channels,
|
||||
src_nb_samples, src_sample_fmt, 0);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not allocate source samples\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* compute the number of converted samples: buffering is avoided
|
||||
* ensuring that the output buffer will contain at least all the
|
||||
* converted input samples */
|
||||
max_dst_nb_samples = dst_nb_samples =
|
||||
av_rescale_rnd(src_nb_samples, dst_rate, src_rate, AV_ROUND_UP);
|
||||
|
||||
/* buffer is going to be directly written to a rawaudio file, no alignment */
|
||||
dst_nb_channels = av_get_channel_layout_nb_channels(dst_ch_layout);
|
||||
ret = av_samples_alloc_array_and_samples(&dst_data, &dst_linesize, dst_nb_channels,
|
||||
dst_nb_samples, dst_sample_fmt, 0);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not allocate destination samples\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
t = 0;
|
||||
do {
|
||||
/* generate synthetic audio */
|
||||
fill_samples((double *)src_data[0], src_nb_samples, src_nb_channels, src_rate, &t);
|
||||
|
||||
/* compute destination number of samples */
|
||||
dst_nb_samples = av_rescale_rnd(swr_get_delay(swr_ctx, src_rate) +
|
||||
src_nb_samples, dst_rate, src_rate, AV_ROUND_UP);
|
||||
if (dst_nb_samples > max_dst_nb_samples) {
|
||||
av_freep(&dst_data[0]);
|
||||
ret = av_samples_alloc(dst_data, &dst_linesize, dst_nb_channels,
|
||||
dst_nb_samples, dst_sample_fmt, 1);
|
||||
if (ret < 0)
|
||||
break;
|
||||
max_dst_nb_samples = dst_nb_samples;
|
||||
}
|
||||
|
||||
/* convert to destination format */
|
||||
ret = swr_convert(swr_ctx, dst_data, dst_nb_samples, (const uint8_t **)src_data, src_nb_samples);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Error while converting\n");
|
||||
goto end;
|
||||
}
|
||||
dst_bufsize = av_samples_get_buffer_size(&dst_linesize, dst_nb_channels,
|
||||
ret, dst_sample_fmt, 1);
|
||||
if (dst_bufsize < 0) {
|
||||
fprintf(stderr, "Could not get sample buffer size\n");
|
||||
goto end;
|
||||
}
|
||||
printf("t:%f in:%d out:%d\n", t, src_nb_samples, ret);
|
||||
fwrite(dst_data[0], 1, dst_bufsize, dst_file);
|
||||
} while (t < 10);
|
||||
|
||||
if ((ret = get_format_from_sample_fmt(&fmt, dst_sample_fmt)) < 0)
|
||||
goto end;
|
||||
fprintf(stderr, "Resampling succeeded. Play the output file with the command:\n"
|
||||
"ffplay -f %s -channel_layout %"PRId64" -channels %d -ar %d %s\n",
|
||||
fmt, dst_ch_layout, dst_nb_channels, dst_rate, dst_filename);
|
||||
|
||||
end:
|
||||
fclose(dst_file);
|
||||
|
||||
if (src_data)
|
||||
av_freep(&src_data[0]);
|
||||
av_freep(&src_data);
|
||||
|
||||
if (dst_data)
|
||||
av_freep(&dst_data[0]);
|
||||
av_freep(&dst_data);
|
||||
|
||||
swr_free(&swr_ctx);
|
||||
return ret < 0;
|
||||
}
|
||||
@@ -1,140 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Stefano Sabatini
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* libswscale API use example.
|
||||
* @example scaling_video.c
|
||||
*/
|
||||
|
||||
#include <libavutil/imgutils.h>
|
||||
#include <libavutil/parseutils.h>
|
||||
#include <libswscale/swscale.h>
|
||||
|
||||
static void fill_yuv_image(uint8_t *data[4], int linesize[4],
|
||||
int width, int height, int frame_index)
|
||||
{
|
||||
int x, y;
|
||||
|
||||
/* Y */
|
||||
for (y = 0; y < height; y++)
|
||||
for (x = 0; x < width; x++)
|
||||
data[0][y * linesize[0] + x] = x + y + frame_index * 3;
|
||||
|
||||
/* Cb and Cr */
|
||||
for (y = 0; y < height / 2; y++) {
|
||||
for (x = 0; x < width / 2; x++) {
|
||||
data[1][y * linesize[1] + x] = 128 + y + frame_index * 2;
|
||||
data[2][y * linesize[2] + x] = 64 + x + frame_index * 5;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
uint8_t *src_data[4], *dst_data[4];
|
||||
int src_linesize[4], dst_linesize[4];
|
||||
int src_w = 320, src_h = 240, dst_w, dst_h;
|
||||
enum AVPixelFormat src_pix_fmt = AV_PIX_FMT_YUV420P, dst_pix_fmt = AV_PIX_FMT_RGB24;
|
||||
const char *dst_size = NULL;
|
||||
const char *dst_filename = NULL;
|
||||
FILE *dst_file;
|
||||
int dst_bufsize;
|
||||
struct SwsContext *sws_ctx;
|
||||
int i, ret;
|
||||
|
||||
if (argc != 3) {
|
||||
fprintf(stderr, "Usage: %s output_file output_size\n"
|
||||
"API example program to show how to scale an image with libswscale.\n"
|
||||
"This program generates a series of pictures, rescales them to the given "
|
||||
"output_size and saves them to an output file named output_file\n."
|
||||
"\n", argv[0]);
|
||||
exit(1);
|
||||
}
|
||||
dst_filename = argv[1];
|
||||
dst_size = argv[2];
|
||||
|
||||
if (av_parse_video_size(&dst_w, &dst_h, dst_size) < 0) {
|
||||
fprintf(stderr,
|
||||
"Invalid size '%s', must be in the form WxH or a valid size abbreviation\n",
|
||||
dst_size);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
dst_file = fopen(dst_filename, "wb");
|
||||
if (!dst_file) {
|
||||
fprintf(stderr, "Could not open destination file %s\n", dst_filename);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* create scaling context */
|
||||
sws_ctx = sws_getContext(src_w, src_h, src_pix_fmt,
|
||||
dst_w, dst_h, dst_pix_fmt,
|
||||
SWS_BILINEAR, NULL, NULL, NULL);
|
||||
if (!sws_ctx) {
|
||||
fprintf(stderr,
|
||||
"Impossible to create scale context for the conversion "
|
||||
"fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n",
|
||||
av_get_pix_fmt_name(src_pix_fmt), src_w, src_h,
|
||||
av_get_pix_fmt_name(dst_pix_fmt), dst_w, dst_h);
|
||||
ret = AVERROR(EINVAL);
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* allocate source and destination image buffers */
|
||||
if ((ret = av_image_alloc(src_data, src_linesize,
|
||||
src_w, src_h, src_pix_fmt, 16)) < 0) {
|
||||
fprintf(stderr, "Could not allocate source image\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* buffer is going to be written to rawvideo file, no alignment */
|
||||
if ((ret = av_image_alloc(dst_data, dst_linesize,
|
||||
dst_w, dst_h, dst_pix_fmt, 1)) < 0) {
|
||||
fprintf(stderr, "Could not allocate destination image\n");
|
||||
goto end;
|
||||
}
|
||||
dst_bufsize = ret;
|
||||
|
||||
for (i = 0; i < 100; i++) {
|
||||
/* generate synthetic video */
|
||||
fill_yuv_image(src_data, src_linesize, src_w, src_h, i);
|
||||
|
||||
/* convert to destination format */
|
||||
sws_scale(sws_ctx, (const uint8_t * const*)src_data,
|
||||
src_linesize, 0, src_h, dst_data, dst_linesize);
|
||||
|
||||
/* write scaled image to file */
|
||||
fwrite(dst_data[0], 1, dst_bufsize, dst_file);
|
||||
}
|
||||
|
||||
fprintf(stderr, "Scaling succeeded. Play the output file with the command:\n"
|
||||
"ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
|
||||
av_get_pix_fmt_name(dst_pix_fmt), dst_w, dst_h, dst_filename);
|
||||
|
||||
end:
|
||||
fclose(dst_file);
|
||||
av_freep(&src_data[0]);
|
||||
av_freep(&dst_data[0]);
|
||||
sws_freeContext(sws_ctx);
|
||||
return ret < 0;
|
||||
}
|
||||
@@ -1,755 +0,0 @@
|
||||
/*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* simple audio converter
|
||||
*
|
||||
* @example transcode_aac.c
|
||||
* Convert an input audio file to AAC in an MP4 container using FFmpeg.
|
||||
* @author Andreas Unterweger (dustsigns@gmail.com)
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include "libavformat/avformat.h"
|
||||
#include "libavformat/avio.h"
|
||||
|
||||
#include "libavcodec/avcodec.h"
|
||||
|
||||
#include "libavutil/audio_fifo.h"
|
||||
#include "libavutil/avassert.h"
|
||||
#include "libavutil/avstring.h"
|
||||
#include "libavutil/frame.h"
|
||||
#include "libavutil/opt.h"
|
||||
|
||||
#include "libswresample/swresample.h"
|
||||
|
||||
/** The output bit rate in kbit/s */
|
||||
#define OUTPUT_BIT_RATE 48000
|
||||
/** The number of output channels */
|
||||
#define OUTPUT_CHANNELS 2
|
||||
/** The audio sample output format */
|
||||
#define OUTPUT_SAMPLE_FORMAT AV_SAMPLE_FMT_S16
|
||||
|
||||
/**
|
||||
* Convert an error code into a text message.
|
||||
* @param error Error code to be converted
|
||||
* @return Corresponding error text (not thread-safe)
|
||||
*/
|
||||
static const char *get_error_text(const int error)
|
||||
{
|
||||
static char error_buffer[255];
|
||||
av_strerror(error, error_buffer, sizeof(error_buffer));
|
||||
return error_buffer;
|
||||
}
|
||||
|
||||
/** Open an input file and the required decoder. */
|
||||
static int open_input_file(const char *filename,
|
||||
AVFormatContext **input_format_context,
|
||||
AVCodecContext **input_codec_context)
|
||||
{
|
||||
AVCodec *input_codec;
|
||||
int error;
|
||||
|
||||
/** Open the input file to read from it. */
|
||||
if ((error = avformat_open_input(input_format_context, filename, NULL,
|
||||
NULL)) < 0) {
|
||||
fprintf(stderr, "Could not open input file '%s' (error '%s')\n",
|
||||
filename, get_error_text(error));
|
||||
*input_format_context = NULL;
|
||||
return error;
|
||||
}
|
||||
|
||||
/** Get information on the input file (number of streams etc.). */
|
||||
if ((error = avformat_find_stream_info(*input_format_context, NULL)) < 0) {
|
||||
fprintf(stderr, "Could not open find stream info (error '%s')\n",
|
||||
get_error_text(error));
|
||||
avformat_close_input(input_format_context);
|
||||
return error;
|
||||
}
|
||||
|
||||
/** Make sure that there is only one stream in the input file. */
|
||||
if ((*input_format_context)->nb_streams != 1) {
|
||||
fprintf(stderr, "Expected one audio input stream, but found %d\n",
|
||||
(*input_format_context)->nb_streams);
|
||||
avformat_close_input(input_format_context);
|
||||
return AVERROR_EXIT;
|
||||
}
|
||||
|
||||
/** Find a decoder for the audio stream. */
|
||||
if (!(input_codec = avcodec_find_decoder((*input_format_context)->streams[0]->codec->codec_id))) {
|
||||
fprintf(stderr, "Could not find input codec\n");
|
||||
avformat_close_input(input_format_context);
|
||||
return AVERROR_EXIT;
|
||||
}
|
||||
|
||||
/** Open the decoder for the audio stream to use it later. */
|
||||
if ((error = avcodec_open2((*input_format_context)->streams[0]->codec,
|
||||
input_codec, NULL)) < 0) {
|
||||
fprintf(stderr, "Could not open input codec (error '%s')\n",
|
||||
get_error_text(error));
|
||||
avformat_close_input(input_format_context);
|
||||
return error;
|
||||
}
|
||||
|
||||
/** Save the decoder context for easier access later. */
|
||||
*input_codec_context = (*input_format_context)->streams[0]->codec;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Open an output file and the required encoder.
|
||||
* Also set some basic encoder parameters.
|
||||
* Some of these parameters are based on the input file's parameters.
|
||||
*/
|
||||
static int open_output_file(const char *filename,
|
||||
AVCodecContext *input_codec_context,
|
||||
AVFormatContext **output_format_context,
|
||||
AVCodecContext **output_codec_context)
|
||||
{
|
||||
AVIOContext *output_io_context = NULL;
|
||||
AVStream *stream = NULL;
|
||||
AVCodec *output_codec = NULL;
|
||||
int error;
|
||||
|
||||
/** Open the output file to write to it. */
|
||||
if ((error = avio_open(&output_io_context, filename,
|
||||
AVIO_FLAG_WRITE)) < 0) {
|
||||
fprintf(stderr, "Could not open output file '%s' (error '%s')\n",
|
||||
filename, get_error_text(error));
|
||||
return error;
|
||||
}
|
||||
|
||||
/** Create a new format context for the output container format. */
|
||||
if (!(*output_format_context = avformat_alloc_context())) {
|
||||
fprintf(stderr, "Could not allocate output format context\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
/** Associate the output file (pointer) with the container format context. */
|
||||
(*output_format_context)->pb = output_io_context;
|
||||
|
||||
/** Guess the desired container format based on the file extension. */
|
||||
if (!((*output_format_context)->oformat = av_guess_format(NULL, filename,
|
||||
NULL))) {
|
||||
fprintf(stderr, "Could not find output file format\n");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
av_strlcpy((*output_format_context)->filename, filename,
|
||||
sizeof((*output_format_context)->filename));
|
||||
|
||||
/** Find the encoder to be used by its name. */
|
||||
if (!(output_codec = avcodec_find_encoder(AV_CODEC_ID_AAC))) {
|
||||
fprintf(stderr, "Could not find an AAC encoder.\n");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
/** Create a new audio stream in the output file container. */
|
||||
if (!(stream = avformat_new_stream(*output_format_context, output_codec))) {
|
||||
fprintf(stderr, "Could not create new stream\n");
|
||||
error = AVERROR(ENOMEM);
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
/** Save the encoder context for easiert access later. */
|
||||
*output_codec_context = stream->codec;
|
||||
|
||||
/**
|
||||
* Set the basic encoder parameters.
|
||||
* The input file's sample rate is used to avoid a sample rate conversion.
|
||||
*/
|
||||
(*output_codec_context)->channels = OUTPUT_CHANNELS;
|
||||
(*output_codec_context)->channel_layout = av_get_default_channel_layout(OUTPUT_CHANNELS);
|
||||
(*output_codec_context)->sample_rate = input_codec_context->sample_rate;
|
||||
(*output_codec_context)->sample_fmt = AV_SAMPLE_FMT_S16;
|
||||
(*output_codec_context)->bit_rate = OUTPUT_BIT_RATE;
|
||||
|
||||
/**
|
||||
* Some container formats (like MP4) require global headers to be present
|
||||
* Mark the encoder so that it behaves accordingly.
|
||||
*/
|
||||
if ((*output_format_context)->oformat->flags & AVFMT_GLOBALHEADER)
|
||||
(*output_codec_context)->flags |= CODEC_FLAG_GLOBAL_HEADER;
|
||||
|
||||
/** Open the encoder for the audio stream to use it later. */
|
||||
if ((error = avcodec_open2(*output_codec_context, output_codec, NULL)) < 0) {
|
||||
fprintf(stderr, "Could not open output codec (error '%s')\n",
|
||||
get_error_text(error));
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
cleanup:
|
||||
avio_close((*output_format_context)->pb);
|
||||
avformat_free_context(*output_format_context);
|
||||
*output_format_context = NULL;
|
||||
return error < 0 ? error : AVERROR_EXIT;
|
||||
}
|
||||
|
||||
/** Initialize one data packet for reading or writing. */
|
||||
static void init_packet(AVPacket *packet)
|
||||
{
|
||||
av_init_packet(packet);
|
||||
/** Set the packet data and size so that it is recognized as being empty. */
|
||||
packet->data = NULL;
|
||||
packet->size = 0;
|
||||
}
|
||||
|
||||
/** Initialize one audio frame for reading from the input file */
|
||||
static int init_input_frame(AVFrame **frame)
|
||||
{
|
||||
if (!(*frame = av_frame_alloc())) {
|
||||
fprintf(stderr, "Could not allocate input frame\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialize the audio resampler based on the input and output codec settings.
|
||||
* If the input and output sample formats differ, a conversion is required
|
||||
* libswresample takes care of this, but requires initialization.
|
||||
*/
|
||||
static int init_resampler(AVCodecContext *input_codec_context,
|
||||
AVCodecContext *output_codec_context,
|
||||
SwrContext **resample_context)
|
||||
{
|
||||
int error;
|
||||
|
||||
/**
|
||||
* Create a resampler context for the conversion.
|
||||
* Set the conversion parameters.
|
||||
* Default channel layouts based on the number of channels
|
||||
* are assumed for simplicity (they are sometimes not detected
|
||||
* properly by the demuxer and/or decoder).
|
||||
*/
|
||||
*resample_context = swr_alloc_set_opts(NULL,
|
||||
av_get_default_channel_layout(output_codec_context->channels),
|
||||
output_codec_context->sample_fmt,
|
||||
output_codec_context->sample_rate,
|
||||
av_get_default_channel_layout(input_codec_context->channels),
|
||||
input_codec_context->sample_fmt,
|
||||
input_codec_context->sample_rate,
|
||||
0, NULL);
|
||||
if (!*resample_context) {
|
||||
fprintf(stderr, "Could not allocate resample context\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
/**
|
||||
* Perform a sanity check so that the number of converted samples is
|
||||
* not greater than the number of samples to be converted.
|
||||
* If the sample rates differ, this case has to be handled differently
|
||||
*/
|
||||
av_assert0(output_codec_context->sample_rate == input_codec_context->sample_rate);
|
||||
|
||||
/** Open the resampler with the specified parameters. */
|
||||
if ((error = swr_init(*resample_context)) < 0) {
|
||||
fprintf(stderr, "Could not open resample context\n");
|
||||
swr_free(resample_context);
|
||||
return error;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/** Initialize a FIFO buffer for the audio samples to be encoded. */
|
||||
static int init_fifo(AVAudioFifo **fifo)
|
||||
{
|
||||
/** Create the FIFO buffer based on the specified output sample format. */
|
||||
if (!(*fifo = av_audio_fifo_alloc(OUTPUT_SAMPLE_FORMAT, OUTPUT_CHANNELS, 1))) {
|
||||
fprintf(stderr, "Could not allocate FIFO\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/** Write the header of the output file container. */
|
||||
static int write_output_file_header(AVFormatContext *output_format_context)
|
||||
{
|
||||
int error;
|
||||
if ((error = avformat_write_header(output_format_context, NULL)) < 0) {
|
||||
fprintf(stderr, "Could not write output file header (error '%s')\n",
|
||||
get_error_text(error));
|
||||
return error;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/** Decode one audio frame from the input file. */
|
||||
static int decode_audio_frame(AVFrame *frame,
|
||||
AVFormatContext *input_format_context,
|
||||
AVCodecContext *input_codec_context,
|
||||
int *data_present, int *finished)
|
||||
{
|
||||
/** Packet used for temporary storage. */
|
||||
AVPacket input_packet;
|
||||
int error;
|
||||
init_packet(&input_packet);
|
||||
|
||||
/** Read one audio frame from the input file into a temporary packet. */
|
||||
if ((error = av_read_frame(input_format_context, &input_packet)) < 0) {
|
||||
/** If we are at the end of the file, flush the decoder below. */
|
||||
if (error == AVERROR_EOF)
|
||||
*finished = 1;
|
||||
else {
|
||||
fprintf(stderr, "Could not read frame (error '%s')\n",
|
||||
get_error_text(error));
|
||||
return error;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Decode the audio frame stored in the temporary packet.
|
||||
* The input audio stream decoder is used to do this.
|
||||
* If we are at the end of the file, pass an empty packet to the decoder
|
||||
* to flush it.
|
||||
*/
|
||||
if ((error = avcodec_decode_audio4(input_codec_context, frame,
|
||||
data_present, &input_packet)) < 0) {
|
||||
fprintf(stderr, "Could not decode frame (error '%s')\n",
|
||||
get_error_text(error));
|
||||
av_free_packet(&input_packet);
|
||||
return error;
|
||||
}
|
||||
|
||||
/**
|
||||
* If the decoder has not been flushed completely, we are not finished,
|
||||
* so that this function has to be called again.
|
||||
*/
|
||||
if (*finished && *data_present)
|
||||
*finished = 0;
|
||||
av_free_packet(&input_packet);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialize a temporary storage for the specified number of audio samples.
|
||||
* The conversion requires temporary storage due to the different format.
|
||||
* The number of audio samples to be allocated is specified in frame_size.
|
||||
*/
|
||||
static int init_converted_samples(uint8_t ***converted_input_samples,
|
||||
AVCodecContext *output_codec_context,
|
||||
int frame_size)
|
||||
{
|
||||
int error;
|
||||
|
||||
/**
|
||||
* Allocate as many pointers as there are audio channels.
|
||||
* Each pointer will later point to the audio samples of the corresponding
|
||||
* channels (although it may be NULL for interleaved formats).
|
||||
*/
|
||||
if (!(*converted_input_samples = calloc(output_codec_context->channels,
|
||||
sizeof(**converted_input_samples)))) {
|
||||
fprintf(stderr, "Could not allocate converted input sample pointers\n");
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
|
||||
/**
|
||||
* Allocate memory for the samples of all channels in one consecutive
|
||||
* block for convenience.
|
||||
*/
|
||||
if ((error = av_samples_alloc(*converted_input_samples, NULL,
|
||||
output_codec_context->channels,
|
||||
frame_size,
|
||||
output_codec_context->sample_fmt, 0)) < 0) {
|
||||
fprintf(stderr,
|
||||
"Could not allocate converted input samples (error '%s')\n",
|
||||
get_error_text(error));
|
||||
av_freep(&(*converted_input_samples)[0]);
|
||||
free(*converted_input_samples);
|
||||
return error;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert the input audio samples into the output sample format.
|
||||
* The conversion happens on a per-frame basis, the size of which is specified
|
||||
* by frame_size.
|
||||
*/
|
||||
static int convert_samples(const uint8_t **input_data,
|
||||
uint8_t **converted_data, const int frame_size,
|
||||
SwrContext *resample_context)
|
||||
{
|
||||
int error;
|
||||
|
||||
/** Convert the samples using the resampler. */
|
||||
if ((error = swr_convert(resample_context,
|
||||
converted_data, frame_size,
|
||||
input_data , frame_size)) < 0) {
|
||||
fprintf(stderr, "Could not convert input samples (error '%s')\n",
|
||||
get_error_text(error));
|
||||
return error;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/** Add converted input audio samples to the FIFO buffer for later processing. */
|
||||
static int add_samples_to_fifo(AVAudioFifo *fifo,
|
||||
uint8_t **converted_input_samples,
|
||||
const int frame_size)
|
||||
{
|
||||
int error;
|
||||
|
||||
/**
|
||||
* Make the FIFO as large as it needs to be to hold both,
|
||||
* the old and the new samples.
|
||||
*/
|
||||
if ((error = av_audio_fifo_realloc(fifo, av_audio_fifo_size(fifo) + frame_size)) < 0) {
|
||||
fprintf(stderr, "Could not reallocate FIFO\n");
|
||||
return error;
|
||||
}
|
||||
|
||||
/** Store the new samples in the FIFO buffer. */
|
||||
if (av_audio_fifo_write(fifo, (void **)converted_input_samples,
|
||||
frame_size) < frame_size) {
|
||||
fprintf(stderr, "Could not write data to FIFO\n");
|
||||
return AVERROR_EXIT;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Read one audio frame from the input file, decodes, converts and stores
|
||||
* it in the FIFO buffer.
|
||||
*/
|
||||
static int read_decode_convert_and_store(AVAudioFifo *fifo,
|
||||
AVFormatContext *input_format_context,
|
||||
AVCodecContext *input_codec_context,
|
||||
AVCodecContext *output_codec_context,
|
||||
SwrContext *resampler_context,
|
||||
int *finished)
|
||||
{
|
||||
/** Temporary storage of the input samples of the frame read from the file. */
|
||||
AVFrame *input_frame = NULL;
|
||||
/** Temporary storage for the converted input samples. */
|
||||
uint8_t **converted_input_samples = NULL;
|
||||
int data_present;
|
||||
int ret = AVERROR_EXIT;
|
||||
|
||||
/** Initialize temporary storage for one input frame. */
|
||||
if (init_input_frame(&input_frame))
|
||||
goto cleanup;
|
||||
/** Decode one frame worth of audio samples. */
|
||||
if (decode_audio_frame(input_frame, input_format_context,
|
||||
input_codec_context, &data_present, finished))
|
||||
goto cleanup;
|
||||
/**
|
||||
* If we are at the end of the file and there are no more samples
|
||||
* in the decoder which are delayed, we are actually finished.
|
||||
* This must not be treated as an error.
|
||||
*/
|
||||
if (*finished && !data_present) {
|
||||
ret = 0;
|
||||
goto cleanup;
|
||||
}
|
||||
/** If there is decoded data, convert and store it */
|
||||
if (data_present) {
|
||||
/** Initialize the temporary storage for the converted input samples. */
|
||||
if (init_converted_samples(&converted_input_samples, output_codec_context,
|
||||
input_frame->nb_samples))
|
||||
goto cleanup;
|
||||
|
||||
/**
|
||||
* Convert the input samples to the desired output sample format.
|
||||
* This requires a temporary storage provided by converted_input_samples.
|
||||
*/
|
||||
if (convert_samples((const uint8_t**)input_frame->extended_data, converted_input_samples,
|
||||
input_frame->nb_samples, resampler_context))
|
||||
goto cleanup;
|
||||
|
||||
/** Add the converted input samples to the FIFO buffer for later processing. */
|
||||
if (add_samples_to_fifo(fifo, converted_input_samples,
|
||||
input_frame->nb_samples))
|
||||
goto cleanup;
|
||||
ret = 0;
|
||||
}
|
||||
ret = 0;
|
||||
|
||||
cleanup:
|
||||
if (converted_input_samples) {
|
||||
av_freep(&converted_input_samples[0]);
|
||||
free(converted_input_samples);
|
||||
}
|
||||
av_frame_free(&input_frame);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialize one input frame for writing to the output file.
|
||||
* The frame will be exactly frame_size samples large.
|
||||
*/
|
||||
static int init_output_frame(AVFrame **frame,
|
||||
AVCodecContext *output_codec_context,
|
||||
int frame_size)
|
||||
{
|
||||
int error;
|
||||
|
||||
/** Create a new frame to store the audio samples. */
|
||||
if (!(*frame = av_frame_alloc())) {
|
||||
fprintf(stderr, "Could not allocate output frame\n");
|
||||
return AVERROR_EXIT;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set the frame's parameters, especially its size and format.
|
||||
* av_frame_get_buffer needs this to allocate memory for the
|
||||
* audio samples of the frame.
|
||||
* Default channel layouts based on the number of channels
|
||||
* are assumed for simplicity.
|
||||
*/
|
||||
(*frame)->nb_samples = frame_size;
|
||||
(*frame)->channel_layout = output_codec_context->channel_layout;
|
||||
(*frame)->format = output_codec_context->sample_fmt;
|
||||
(*frame)->sample_rate = output_codec_context->sample_rate;
|
||||
|
||||
/**
|
||||
* Allocate the samples of the created frame. This call will make
|
||||
* sure that the audio frame can hold as many samples as specified.
|
||||
*/
|
||||
if ((error = av_frame_get_buffer(*frame, 0)) < 0) {
|
||||
fprintf(stderr, "Could allocate output frame samples (error '%s')\n",
|
||||
get_error_text(error));
|
||||
av_frame_free(frame);
|
||||
return error;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/** Encode one frame worth of audio to the output file. */
|
||||
static int encode_audio_frame(AVFrame *frame,
|
||||
AVFormatContext *output_format_context,
|
||||
AVCodecContext *output_codec_context,
|
||||
int *data_present)
|
||||
{
|
||||
/** Packet used for temporary storage. */
|
||||
AVPacket output_packet;
|
||||
int error;
|
||||
init_packet(&output_packet);
|
||||
|
||||
/**
|
||||
* Encode the audio frame and store it in the temporary packet.
|
||||
* The output audio stream encoder is used to do this.
|
||||
*/
|
||||
if ((error = avcodec_encode_audio2(output_codec_context, &output_packet,
|
||||
frame, data_present)) < 0) {
|
||||
fprintf(stderr, "Could not encode frame (error '%s')\n",
|
||||
get_error_text(error));
|
||||
av_free_packet(&output_packet);
|
||||
return error;
|
||||
}
|
||||
|
||||
/** Write one audio frame from the temporary packet to the output file. */
|
||||
if (*data_present) {
|
||||
if ((error = av_write_frame(output_format_context, &output_packet)) < 0) {
|
||||
fprintf(stderr, "Could not write frame (error '%s')\n",
|
||||
get_error_text(error));
|
||||
av_free_packet(&output_packet);
|
||||
return error;
|
||||
}
|
||||
|
||||
av_free_packet(&output_packet);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Load one audio frame from the FIFO buffer, encode and write it to the
|
||||
* output file.
|
||||
*/
|
||||
static int load_encode_and_write(AVAudioFifo *fifo,
|
||||
AVFormatContext *output_format_context,
|
||||
AVCodecContext *output_codec_context)
|
||||
{
|
||||
/** Temporary storage of the output samples of the frame written to the file. */
|
||||
AVFrame *output_frame;
|
||||
/**
|
||||
* Use the maximum number of possible samples per frame.
|
||||
* If there is less than the maximum possible frame size in the FIFO
|
||||
* buffer use this number. Otherwise, use the maximum possible frame size
|
||||
*/
|
||||
const int frame_size = FFMIN(av_audio_fifo_size(fifo),
|
||||
output_codec_context->frame_size);
|
||||
int data_written;
|
||||
|
||||
/** Initialize temporary storage for one output frame. */
|
||||
if (init_output_frame(&output_frame, output_codec_context, frame_size))
|
||||
return AVERROR_EXIT;
|
||||
|
||||
/**
|
||||
* Read as many samples from the FIFO buffer as required to fill the frame.
|
||||
* The samples are stored in the frame temporarily.
|
||||
*/
|
||||
if (av_audio_fifo_read(fifo, (void **)output_frame->data, frame_size) < frame_size) {
|
||||
fprintf(stderr, "Could not read data from FIFO\n");
|
||||
av_frame_free(&output_frame);
|
||||
return AVERROR_EXIT;
|
||||
}
|
||||
|
||||
/** Encode one frame worth of audio samples. */
|
||||
if (encode_audio_frame(output_frame, output_format_context,
|
||||
output_codec_context, &data_written)) {
|
||||
av_frame_free(&output_frame);
|
||||
return AVERROR_EXIT;
|
||||
}
|
||||
av_frame_free(&output_frame);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/** Write the trailer of the output file container. */
|
||||
static int write_output_file_trailer(AVFormatContext *output_format_context)
|
||||
{
|
||||
int error;
|
||||
if ((error = av_write_trailer(output_format_context)) < 0) {
|
||||
fprintf(stderr, "Could not write output file trailer (error '%s')\n",
|
||||
get_error_text(error));
|
||||
return error;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/** Convert an audio file to an AAC file in an MP4 container. */
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
AVFormatContext *input_format_context = NULL, *output_format_context = NULL;
|
||||
AVCodecContext *input_codec_context = NULL, *output_codec_context = NULL;
|
||||
SwrContext *resample_context = NULL;
|
||||
AVAudioFifo *fifo = NULL;
|
||||
int ret = AVERROR_EXIT;
|
||||
|
||||
if (argc < 3) {
|
||||
fprintf(stderr, "Usage: %s <input file> <output file>\n", argv[0]);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/** Register all codecs and formats so that they can be used. */
|
||||
av_register_all();
|
||||
/** Open the input file for reading. */
|
||||
if (open_input_file(argv[1], &input_format_context,
|
||||
&input_codec_context))
|
||||
goto cleanup;
|
||||
/** Open the output file for writing. */
|
||||
if (open_output_file(argv[2], input_codec_context,
|
||||
&output_format_context, &output_codec_context))
|
||||
goto cleanup;
|
||||
/** Initialize the resampler to be able to convert audio sample formats. */
|
||||
if (init_resampler(input_codec_context, output_codec_context,
|
||||
&resample_context))
|
||||
goto cleanup;
|
||||
/** Initialize the FIFO buffer to store audio samples to be encoded. */
|
||||
if (init_fifo(&fifo))
|
||||
goto cleanup;
|
||||
/** Write the header of the output file container. */
|
||||
if (write_output_file_header(output_format_context))
|
||||
goto cleanup;
|
||||
|
||||
/**
|
||||
* Loop as long as we have input samples to read or output samples
|
||||
* to write; abort as soon as we have neither.
|
||||
*/
|
||||
while (1) {
|
||||
/** Use the encoder's desired frame size for processing. */
|
||||
const int output_frame_size = output_codec_context->frame_size;
|
||||
int finished = 0;
|
||||
|
||||
/**
|
||||
* Make sure that there is one frame worth of samples in the FIFO
|
||||
* buffer so that the encoder can do its work.
|
||||
* Since the decoder's and the encoder's frame size may differ, we
|
||||
* need to FIFO buffer to store as many frames worth of input samples
|
||||
* that they make up at least one frame worth of output samples.
|
||||
*/
|
||||
while (av_audio_fifo_size(fifo) < output_frame_size) {
|
||||
/**
|
||||
* Decode one frame worth of audio samples, convert it to the
|
||||
* output sample format and put it into the FIFO buffer.
|
||||
*/
|
||||
if (read_decode_convert_and_store(fifo, input_format_context,
|
||||
input_codec_context,
|
||||
output_codec_context,
|
||||
resample_context, &finished))
|
||||
goto cleanup;
|
||||
|
||||
/**
|
||||
* If we are at the end of the input file, we continue
|
||||
* encoding the remaining audio samples to the output file.
|
||||
*/
|
||||
if (finished)
|
||||
break;
|
||||
}
|
||||
|
||||
/**
|
||||
* If we have enough samples for the encoder, we encode them.
|
||||
* At the end of the file, we pass the remaining samples to
|
||||
* the encoder.
|
||||
*/
|
||||
while (av_audio_fifo_size(fifo) >= output_frame_size ||
|
||||
(finished && av_audio_fifo_size(fifo) > 0))
|
||||
/**
|
||||
* Take one frame worth of audio samples from the FIFO buffer,
|
||||
* encode it and write it to the output file.
|
||||
*/
|
||||
if (load_encode_and_write(fifo, output_format_context,
|
||||
output_codec_context))
|
||||
goto cleanup;
|
||||
|
||||
/**
|
||||
* If we are at the end of the input file and have encoded
|
||||
* all remaining samples, we can exit this loop and finish.
|
||||
*/
|
||||
if (finished) {
|
||||
int data_written;
|
||||
/** Flush the encoder as it may have delayed frames. */
|
||||
do {
|
||||
if (encode_audio_frame(NULL, output_format_context,
|
||||
output_codec_context, &data_written))
|
||||
goto cleanup;
|
||||
} while (data_written);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/** Write the trailer of the output file container. */
|
||||
if (write_output_file_trailer(output_format_context))
|
||||
goto cleanup;
|
||||
ret = 0;
|
||||
|
||||
cleanup:
|
||||
if (fifo)
|
||||
av_audio_fifo_free(fifo);
|
||||
swr_free(&resample_context);
|
||||
if (output_codec_context)
|
||||
avcodec_close(output_codec_context);
|
||||
if (output_format_context) {
|
||||
avio_close(output_format_context->pb);
|
||||
avformat_free_context(output_format_context);
|
||||
}
|
||||
if (input_codec_context)
|
||||
avcodec_close(input_codec_context);
|
||||
if (input_format_context)
|
||||
avformat_close_input(&input_format_context);
|
||||
|
||||
return ret;
|
||||
}
|
||||
@@ -1,583 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2010 Nicolas George
|
||||
* Copyright (c) 2011 Stefano Sabatini
|
||||
* Copyright (c) 2014 Andrey Utkin
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* API example for demuxing, decoding, filtering, encoding and muxing
|
||||
* @example transcoding.c
|
||||
*/
|
||||
|
||||
#include <libavcodec/avcodec.h>
|
||||
#include <libavformat/avformat.h>
|
||||
#include <libavfilter/avfiltergraph.h>
|
||||
#include <libavfilter/avcodec.h>
|
||||
#include <libavfilter/buffersink.h>
|
||||
#include <libavfilter/buffersrc.h>
|
||||
#include <libavutil/opt.h>
|
||||
#include <libavutil/pixdesc.h>
|
||||
|
||||
static AVFormatContext *ifmt_ctx;
|
||||
static AVFormatContext *ofmt_ctx;
|
||||
typedef struct FilteringContext {
|
||||
AVFilterContext *buffersink_ctx;
|
||||
AVFilterContext *buffersrc_ctx;
|
||||
AVFilterGraph *filter_graph;
|
||||
} FilteringContext;
|
||||
static FilteringContext *filter_ctx;
|
||||
|
||||
static int open_input_file(const char *filename)
|
||||
{
|
||||
int ret;
|
||||
unsigned int i;
|
||||
|
||||
ifmt_ctx = NULL;
|
||||
if ((ret = avformat_open_input(&ifmt_ctx, filename, NULL, NULL)) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot open input file\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if ((ret = avformat_find_stream_info(ifmt_ctx, NULL)) < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
|
||||
AVStream *stream;
|
||||
AVCodecContext *codec_ctx;
|
||||
stream = ifmt_ctx->streams[i];
|
||||
codec_ctx = stream->codec;
|
||||
/* Reencode video & audio and remux subtitles etc. */
|
||||
if (codec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
|
||||
|| codec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
|
||||
/* Open decoder */
|
||||
ret = avcodec_open2(codec_ctx,
|
||||
avcodec_find_decoder(codec_ctx->codec_id), NULL);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Failed to open decoder for stream #%u\n", i);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
av_dump_format(ifmt_ctx, 0, filename, 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int open_output_file(const char *filename)
|
||||
{
|
||||
AVStream *out_stream;
|
||||
AVStream *in_stream;
|
||||
AVCodecContext *dec_ctx, *enc_ctx;
|
||||
AVCodec *encoder;
|
||||
int ret;
|
||||
unsigned int i;
|
||||
|
||||
ofmt_ctx = NULL;
|
||||
avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, filename);
|
||||
if (!ofmt_ctx) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Could not create output context\n");
|
||||
return AVERROR_UNKNOWN;
|
||||
}
|
||||
|
||||
|
||||
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
|
||||
out_stream = avformat_new_stream(ofmt_ctx, NULL);
|
||||
if (!out_stream) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Failed allocating output stream\n");
|
||||
return AVERROR_UNKNOWN;
|
||||
}
|
||||
|
||||
in_stream = ifmt_ctx->streams[i];
|
||||
dec_ctx = in_stream->codec;
|
||||
enc_ctx = out_stream->codec;
|
||||
|
||||
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
|
||||
|| dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
|
||||
/* in this example, we choose transcoding to same codec */
|
||||
encoder = avcodec_find_encoder(dec_ctx->codec_id);
|
||||
if (!encoder) {
|
||||
av_log(NULL, AV_LOG_FATAL, "Neccessary encoder not found\n");
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
/* In this example, we transcode to same properties (picture size,
|
||||
* sample rate etc.). These properties can be changed for output
|
||||
* streams easily using filters */
|
||||
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
|
||||
enc_ctx->height = dec_ctx->height;
|
||||
enc_ctx->width = dec_ctx->width;
|
||||
enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
|
||||
/* take first format from list of supported formats */
|
||||
enc_ctx->pix_fmt = encoder->pix_fmts[0];
|
||||
/* video time_base can be set to whatever is handy and supported by encoder */
|
||||
enc_ctx->time_base = dec_ctx->time_base;
|
||||
} else {
|
||||
enc_ctx->sample_rate = dec_ctx->sample_rate;
|
||||
enc_ctx->channel_layout = dec_ctx->channel_layout;
|
||||
enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
|
||||
/* take first format from list of supported formats */
|
||||
enc_ctx->sample_fmt = encoder->sample_fmts[0];
|
||||
enc_ctx->time_base = (AVRational){1, enc_ctx->sample_rate};
|
||||
}
|
||||
|
||||
/* Third parameter can be used to pass settings to encoder */
|
||||
ret = avcodec_open2(enc_ctx, encoder, NULL);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot open video encoder for stream #%u\n", i);
|
||||
return ret;
|
||||
}
|
||||
} else if (dec_ctx->codec_type == AVMEDIA_TYPE_UNKNOWN) {
|
||||
av_log(NULL, AV_LOG_FATAL, "Elementary stream #%d is of unknown type, cannot proceed\n", i);
|
||||
return AVERROR_INVALIDDATA;
|
||||
} else {
|
||||
/* if this stream must be remuxed */
|
||||
ret = avcodec_copy_context(ofmt_ctx->streams[i]->codec,
|
||||
ifmt_ctx->streams[i]->codec);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Copying stream context failed\n");
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
|
||||
enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
|
||||
|
||||
}
|
||||
av_dump_format(ofmt_ctx, 0, filename, 1);
|
||||
|
||||
if (!(ofmt_ctx->oformat->flags & AVFMT_NOFILE)) {
|
||||
ret = avio_open(&ofmt_ctx->pb, filename, AVIO_FLAG_WRITE);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Could not open output file '%s'", filename);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
/* init muxer, write output file header */
|
||||
ret = avformat_write_header(ofmt_ctx, NULL);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Error occurred when opening output file\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int init_filter(FilteringContext* fctx, AVCodecContext *dec_ctx,
|
||||
AVCodecContext *enc_ctx, const char *filter_spec)
|
||||
{
|
||||
char args[512];
|
||||
int ret = 0;
|
||||
AVFilter *buffersrc = NULL;
|
||||
AVFilter *buffersink = NULL;
|
||||
AVFilterContext *buffersrc_ctx = NULL;
|
||||
AVFilterContext *buffersink_ctx = NULL;
|
||||
AVFilterInOut *outputs = avfilter_inout_alloc();
|
||||
AVFilterInOut *inputs = avfilter_inout_alloc();
|
||||
AVFilterGraph *filter_graph = avfilter_graph_alloc();
|
||||
|
||||
if (!outputs || !inputs || !filter_graph) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
|
||||
buffersrc = avfilter_get_by_name("buffer");
|
||||
buffersink = avfilter_get_by_name("buffersink");
|
||||
if (!buffersrc || !buffersink) {
|
||||
av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
|
||||
ret = AVERROR_UNKNOWN;
|
||||
goto end;
|
||||
}
|
||||
|
||||
snprintf(args, sizeof(args),
|
||||
"video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
|
||||
dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
|
||||
dec_ctx->time_base.num, dec_ctx->time_base.den,
|
||||
dec_ctx->sample_aspect_ratio.num,
|
||||
dec_ctx->sample_aspect_ratio.den);
|
||||
|
||||
ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
|
||||
args, NULL, filter_graph);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
|
||||
NULL, NULL, filter_graph);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
|
||||
(uint8_t*)&enc_ctx->pix_fmt, sizeof(enc_ctx->pix_fmt),
|
||||
AV_OPT_SEARCH_CHILDREN);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output pixel format\n");
|
||||
goto end;
|
||||
}
|
||||
} else if (dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
|
||||
buffersrc = avfilter_get_by_name("abuffer");
|
||||
buffersink = avfilter_get_by_name("abuffersink");
|
||||
if (!buffersrc || !buffersink) {
|
||||
av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
|
||||
ret = AVERROR_UNKNOWN;
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (!dec_ctx->channel_layout)
|
||||
dec_ctx->channel_layout =
|
||||
av_get_default_channel_layout(dec_ctx->channels);
|
||||
snprintf(args, sizeof(args),
|
||||
"time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%"PRIx64,
|
||||
dec_ctx->time_base.num, dec_ctx->time_base.den, dec_ctx->sample_rate,
|
||||
av_get_sample_fmt_name(dec_ctx->sample_fmt),
|
||||
dec_ctx->channel_layout);
|
||||
ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
|
||||
args, NULL, filter_graph);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer source\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
|
||||
NULL, NULL, filter_graph);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
|
||||
(uint8_t*)&enc_ctx->sample_fmt, sizeof(enc_ctx->sample_fmt),
|
||||
AV_OPT_SEARCH_CHILDREN);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = av_opt_set_bin(buffersink_ctx, "channel_layouts",
|
||||
(uint8_t*)&enc_ctx->channel_layout,
|
||||
sizeof(enc_ctx->channel_layout), AV_OPT_SEARCH_CHILDREN);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
|
||||
(uint8_t*)&enc_ctx->sample_rate, sizeof(enc_ctx->sample_rate),
|
||||
AV_OPT_SEARCH_CHILDREN);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
|
||||
goto end;
|
||||
}
|
||||
} else {
|
||||
ret = AVERROR_UNKNOWN;
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* Endpoints for the filter graph. */
|
||||
outputs->name = av_strdup("in");
|
||||
outputs->filter_ctx = buffersrc_ctx;
|
||||
outputs->pad_idx = 0;
|
||||
outputs->next = NULL;
|
||||
|
||||
inputs->name = av_strdup("out");
|
||||
inputs->filter_ctx = buffersink_ctx;
|
||||
inputs->pad_idx = 0;
|
||||
inputs->next = NULL;
|
||||
|
||||
if (!outputs->name || !inputs->name) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if ((ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
|
||||
&inputs, &outputs, NULL)) < 0)
|
||||
goto end;
|
||||
|
||||
if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
|
||||
goto end;
|
||||
|
||||
/* Fill FilteringContext */
|
||||
fctx->buffersrc_ctx = buffersrc_ctx;
|
||||
fctx->buffersink_ctx = buffersink_ctx;
|
||||
fctx->filter_graph = filter_graph;
|
||||
|
||||
end:
|
||||
avfilter_inout_free(&inputs);
|
||||
avfilter_inout_free(&outputs);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int init_filters(void)
|
||||
{
|
||||
const char *filter_spec;
|
||||
unsigned int i;
|
||||
int ret;
|
||||
filter_ctx = av_malloc_array(ifmt_ctx->nb_streams, sizeof(*filter_ctx));
|
||||
if (!filter_ctx)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
|
||||
filter_ctx[i].buffersrc_ctx = NULL;
|
||||
filter_ctx[i].buffersink_ctx = NULL;
|
||||
filter_ctx[i].filter_graph = NULL;
|
||||
if (!(ifmt_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO
|
||||
|| ifmt_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO))
|
||||
continue;
|
||||
|
||||
|
||||
if (ifmt_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
|
||||
filter_spec = "null"; /* passthrough (dummy) filter for video */
|
||||
else
|
||||
filter_spec = "anull"; /* passthrough (dummy) filter for audio */
|
||||
ret = init_filter(&filter_ctx[i], ifmt_ctx->streams[i]->codec,
|
||||
ofmt_ctx->streams[i]->codec, filter_spec);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int encode_write_frame(AVFrame *filt_frame, unsigned int stream_index, int *got_frame) {
|
||||
int ret;
|
||||
int got_frame_local;
|
||||
AVPacket enc_pkt;
|
||||
int (*enc_func)(AVCodecContext *, AVPacket *, const AVFrame *, int *) =
|
||||
(ifmt_ctx->streams[stream_index]->codec->codec_type ==
|
||||
AVMEDIA_TYPE_VIDEO) ? avcodec_encode_video2 : avcodec_encode_audio2;
|
||||
|
||||
if (!got_frame)
|
||||
got_frame = &got_frame_local;
|
||||
|
||||
av_log(NULL, AV_LOG_INFO, "Encoding frame\n");
|
||||
/* encode filtered frame */
|
||||
enc_pkt.data = NULL;
|
||||
enc_pkt.size = 0;
|
||||
av_init_packet(&enc_pkt);
|
||||
ret = enc_func(ofmt_ctx->streams[stream_index]->codec, &enc_pkt,
|
||||
filt_frame, got_frame);
|
||||
av_frame_free(&filt_frame);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
if (!(*got_frame))
|
||||
return 0;
|
||||
|
||||
/* prepare packet for muxing */
|
||||
enc_pkt.stream_index = stream_index;
|
||||
av_packet_rescale_ts(&enc_pkt,
|
||||
ofmt_ctx->streams[stream_index]->codec->time_base,
|
||||
ofmt_ctx->streams[stream_index]->time_base);
|
||||
|
||||
av_log(NULL, AV_LOG_DEBUG, "Muxing frame\n");
|
||||
/* mux encoded frame */
|
||||
ret = av_interleaved_write_frame(ofmt_ctx, &enc_pkt);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int filter_encode_write_frame(AVFrame *frame, unsigned int stream_index)
|
||||
{
|
||||
int ret;
|
||||
AVFrame *filt_frame;
|
||||
|
||||
av_log(NULL, AV_LOG_INFO, "Pushing decoded frame to filters\n");
|
||||
/* push the decoded frame into the filtergraph */
|
||||
ret = av_buffersrc_add_frame_flags(filter_ctx[stream_index].buffersrc_ctx,
|
||||
frame, 0);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* pull filtered frames from the filtergraph */
|
||||
while (1) {
|
||||
filt_frame = av_frame_alloc();
|
||||
if (!filt_frame) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
break;
|
||||
}
|
||||
av_log(NULL, AV_LOG_INFO, "Pulling filtered frame from filters\n");
|
||||
ret = av_buffersink_get_frame(filter_ctx[stream_index].buffersink_ctx,
|
||||
filt_frame);
|
||||
if (ret < 0) {
|
||||
/* if no more frames for output - returns AVERROR(EAGAIN)
|
||||
* if flushed and no more frames for output - returns AVERROR_EOF
|
||||
* rewrite retcode to 0 to show it as normal procedure completion
|
||||
*/
|
||||
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
|
||||
ret = 0;
|
||||
av_frame_free(&filt_frame);
|
||||
break;
|
||||
}
|
||||
|
||||
filt_frame->pict_type = AV_PICTURE_TYPE_NONE;
|
||||
ret = encode_write_frame(filt_frame, stream_index, NULL);
|
||||
if (ret < 0)
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int flush_encoder(unsigned int stream_index)
|
||||
{
|
||||
int ret;
|
||||
int got_frame;
|
||||
|
||||
if (!(ofmt_ctx->streams[stream_index]->codec->codec->capabilities &
|
||||
CODEC_CAP_DELAY))
|
||||
return 0;
|
||||
|
||||
while (1) {
|
||||
av_log(NULL, AV_LOG_INFO, "Flushing stream #%u encoder\n", stream_index);
|
||||
ret = encode_write_frame(NULL, stream_index, &got_frame);
|
||||
if (ret < 0)
|
||||
break;
|
||||
if (!got_frame)
|
||||
return 0;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int ret;
|
||||
AVPacket packet = { .data = NULL, .size = 0 };
|
||||
AVFrame *frame = NULL;
|
||||
enum AVMediaType type;
|
||||
unsigned int stream_index;
|
||||
unsigned int i;
|
||||
int got_frame;
|
||||
int (*dec_func)(AVCodecContext *, AVFrame *, int *, const AVPacket *);
|
||||
|
||||
if (argc != 3) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Usage: %s <input file> <output file>\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
av_register_all();
|
||||
avfilter_register_all();
|
||||
|
||||
if ((ret = open_input_file(argv[1])) < 0)
|
||||
goto end;
|
||||
if ((ret = open_output_file(argv[2])) < 0)
|
||||
goto end;
|
||||
if ((ret = init_filters()) < 0)
|
||||
goto end;
|
||||
|
||||
/* read all packets */
|
||||
while (1) {
|
||||
if ((ret = av_read_frame(ifmt_ctx, &packet)) < 0)
|
||||
break;
|
||||
stream_index = packet.stream_index;
|
||||
type = ifmt_ctx->streams[packet.stream_index]->codec->codec_type;
|
||||
av_log(NULL, AV_LOG_DEBUG, "Demuxer gave frame of stream_index %u\n",
|
||||
stream_index);
|
||||
|
||||
if (filter_ctx[stream_index].filter_graph) {
|
||||
av_log(NULL, AV_LOG_DEBUG, "Going to reencode&filter the frame\n");
|
||||
frame = av_frame_alloc();
|
||||
if (!frame) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
break;
|
||||
}
|
||||
av_packet_rescale_ts(&packet,
|
||||
ifmt_ctx->streams[stream_index]->time_base,
|
||||
ifmt_ctx->streams[stream_index]->codec->time_base);
|
||||
dec_func = (type == AVMEDIA_TYPE_VIDEO) ? avcodec_decode_video2 :
|
||||
avcodec_decode_audio4;
|
||||
ret = dec_func(ifmt_ctx->streams[stream_index]->codec, frame,
|
||||
&got_frame, &packet);
|
||||
if (ret < 0) {
|
||||
av_frame_free(&frame);
|
||||
av_log(NULL, AV_LOG_ERROR, "Decoding failed\n");
|
||||
break;
|
||||
}
|
||||
|
||||
if (got_frame) {
|
||||
frame->pts = av_frame_get_best_effort_timestamp(frame);
|
||||
ret = filter_encode_write_frame(frame, stream_index);
|
||||
av_frame_free(&frame);
|
||||
if (ret < 0)
|
||||
goto end;
|
||||
} else {
|
||||
av_frame_free(&frame);
|
||||
}
|
||||
} else {
|
||||
/* remux this frame without reencoding */
|
||||
av_packet_rescale_ts(&packet,
|
||||
ifmt_ctx->streams[stream_index]->time_base,
|
||||
ofmt_ctx->streams[stream_index]->time_base);
|
||||
|
||||
ret = av_interleaved_write_frame(ofmt_ctx, &packet);
|
||||
if (ret < 0)
|
||||
goto end;
|
||||
}
|
||||
av_free_packet(&packet);
|
||||
}
|
||||
|
||||
/* flush filters and encoders */
|
||||
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
|
||||
/* flush filter */
|
||||
if (!filter_ctx[i].filter_graph)
|
||||
continue;
|
||||
ret = filter_encode_write_frame(NULL, i);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Flushing filter failed\n");
|
||||
goto end;
|
||||
}
|
||||
|
||||
/* flush encoder */
|
||||
ret = flush_encoder(i);
|
||||
if (ret < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Flushing encoder failed\n");
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
|
||||
av_write_trailer(ofmt_ctx);
|
||||
end:
|
||||
av_free_packet(&packet);
|
||||
av_frame_free(&frame);
|
||||
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
|
||||
avcodec_close(ifmt_ctx->streams[i]->codec);
|
||||
if (ofmt_ctx && ofmt_ctx->nb_streams > i && ofmt_ctx->streams[i] && ofmt_ctx->streams[i]->codec)
|
||||
avcodec_close(ofmt_ctx->streams[i]->codec);
|
||||
if (filter_ctx && filter_ctx[i].filter_graph)
|
||||
avfilter_graph_free(&filter_ctx[i].filter_graph);
|
||||
}
|
||||
av_free(filter_ctx);
|
||||
avformat_close_input(&ifmt_ctx);
|
||||
if (ofmt_ctx && !(ofmt_ctx->oformat->flags & AVFMT_NOFILE))
|
||||
avio_close(ofmt_ctx->pb);
|
||||
avformat_free_context(ofmt_ctx);
|
||||
|
||||
if (ret < 0)
|
||||
av_log(NULL, AV_LOG_ERROR, "Error occurred: %s\n", av_err2str(ret));
|
||||
|
||||
return ret ? 1 : 0;
|
||||
}
|
||||
404
doc/faq.texi
404
doc/faq.texi
@@ -11,6 +11,22 @@
|
||||
|
||||
@chapter General Questions
|
||||
|
||||
@section When will the next FFmpeg version be released? / Why are FFmpeg releases so few and far between?
|
||||
|
||||
Like most open source projects FFmpeg suffers from a certain lack of
|
||||
manpower. For this reason the developers have to prioritize the work
|
||||
they do and putting out releases is not at the top of the list, fixing
|
||||
bugs and reviewing patches takes precedence. Please don't complain or
|
||||
request more timely and/or frequent releases unless you are willing to
|
||||
help out creating them.
|
||||
|
||||
@section I have a problem with an old version of FFmpeg; where should I report it?
|
||||
Nowhere. We do not support old FFmpeg versions in any way, we simply lack
|
||||
the time, motivation and manpower to do so. If you have a problem with an
|
||||
old version of FFmpeg, upgrade to the latest git snapshot. If you
|
||||
still experience the problem, then you can report it according to the
|
||||
guidelines in @url{http://ffmpeg.org/bugreports.html}.
|
||||
|
||||
@section Why doesn't FFmpeg support feature [xyz]?
|
||||
|
||||
Because no one has taken on that task yet. FFmpeg development is
|
||||
@@ -24,6 +40,30 @@ No. Windows DLLs are not portable, bloated and often slow.
|
||||
Moreover FFmpeg strives to support all codecs natively.
|
||||
A DLL loader is not conducive to that goal.
|
||||
|
||||
@section My bug report/mail to ffmpeg-devel/user has not received any replies.
|
||||
|
||||
Likely reasons
|
||||
@itemize
|
||||
@item We are busy and haven't had time yet to read your report or
|
||||
investigate the issue.
|
||||
@item You didn't follow @url{http://ffmpeg.org/bugreports.html}.
|
||||
@item You didn't use git HEAD.
|
||||
@item You reported a segmentation fault without gdb output.
|
||||
@item You describe a problem but not how to reproduce it.
|
||||
@item It's unclear if you use ffmpeg as command line tool or use
|
||||
libav* from another application.
|
||||
@item You speak about a video having problems on playback but
|
||||
not what you use to play it.
|
||||
@item We have no faint clue what you are talking about besides
|
||||
that it is related to FFmpeg.
|
||||
@end itemize
|
||||
|
||||
@section Is there a forum for FFmpeg? I do not like mailing lists.
|
||||
|
||||
You may view our mailing lists with a more forum-alike look here:
|
||||
@url{http://dir.gmane.org/gmane.comp.video.ffmpeg.user},
|
||||
but, if you post, please remember that our mailing list rules still apply there.
|
||||
|
||||
@section I cannot read this file although this format seems to be supported by ffmpeg.
|
||||
|
||||
Even if ffmpeg can read the container format, it may not support all its
|
||||
@@ -79,23 +119,11 @@ not a bug they should fix:
|
||||
Then again, some of them do not know the difference between an undecidable
|
||||
problem and an NP-hard problem...
|
||||
|
||||
@section I have installed this library with my distro's package manager. Why does @command{configure} not see it?
|
||||
|
||||
Distributions usually split libraries in several packages. The main package
|
||||
contains the files necessary to run programs using the library. The
|
||||
development package contains the files necessary to build programs using the
|
||||
library. Sometimes, docs and/or data are in a separate package too.
|
||||
|
||||
To build FFmpeg, you need to install the development package. It is usually
|
||||
called @file{libfoo-dev} or @file{libfoo-devel}. You can remove it after the
|
||||
build is finished, but be sure to keep the main package.
|
||||
|
||||
@chapter Usage
|
||||
|
||||
@section ffmpeg does not work; what is wrong?
|
||||
|
||||
Try a @code{make distclean} in the ffmpeg source directory before the build.
|
||||
If this does not help see
|
||||
Try a @code{make distclean} in the ffmpeg source directory before the build. If this does not help see
|
||||
(@url{http://ffmpeg.org/bugreports.html}).
|
||||
|
||||
@section How do I encode single pictures into movies?
|
||||
@@ -105,21 +133,12 @@ For example, img1.jpg, img2.jpg, img3.jpg,...
|
||||
Then you may run:
|
||||
|
||||
@example
|
||||
ffmpeg -f image2 -i img%d.jpg /tmp/a.mpg
|
||||
ffmpeg -f image2 -i img%d.jpg /tmp/a.mpg
|
||||
@end example
|
||||
|
||||
Notice that @samp{%d} is replaced by the image number.
|
||||
|
||||
@file{img%03d.jpg} means the sequence @file{img001.jpg}, @file{img002.jpg}, etc.
|
||||
|
||||
Use the @option{-start_number} option to declare a starting number for
|
||||
the sequence. This is useful if your sequence does not start with
|
||||
@file{img001.jpg} but is still in a numerical order. The following
|
||||
example will start with @file{img100.jpg}:
|
||||
|
||||
@example
|
||||
ffmpeg -f image2 -start_number 100 -i img%d.jpg /tmp/a.mpg
|
||||
@end example
|
||||
@file{img%03d.jpg} means the sequence @file{img001.jpg}, @file{img002.jpg}, etc...
|
||||
|
||||
If you have large number of pictures to rename, you can use the
|
||||
following command to ease the burden. The command, using the bourne
|
||||
@@ -128,7 +147,7 @@ that match @code{*jpg} to the @file{/tmp} directory in the sequence of
|
||||
@file{img001.jpg}, @file{img002.jpg} and so on.
|
||||
|
||||
@example
|
||||
x=1; for i in *jpg; do counter=$(printf %03d $x); ln -s "$i" /tmp/img"$counter".jpg; x=$(($x+1)); done
|
||||
x=1; for i in *jpg; do counter=$(printf %03d $x); ln -s "$i" /tmp/img"$counter".jpg; x=$(($x+1)); done
|
||||
@end example
|
||||
|
||||
If you want to sequence them by oldest modified first, substitute
|
||||
@@ -137,23 +156,17 @@ If you want to sequence them by oldest modified first, substitute
|
||||
Then run:
|
||||
|
||||
@example
|
||||
ffmpeg -f image2 -i /tmp/img%03d.jpg /tmp/a.mpg
|
||||
ffmpeg -f image2 -i /tmp/img%03d.jpg /tmp/a.mpg
|
||||
@end example
|
||||
|
||||
The same logic is used for any image format that ffmpeg reads.
|
||||
|
||||
You can also use @command{cat} to pipe images to ffmpeg:
|
||||
|
||||
@example
|
||||
cat *.jpg | ffmpeg -f image2pipe -c:v mjpeg -i - output.mpg
|
||||
@end example
|
||||
|
||||
@section How do I encode movie to single pictures?
|
||||
|
||||
Use:
|
||||
|
||||
@example
|
||||
ffmpeg -i movie.mpg movie%d.jpg
|
||||
ffmpeg -i movie.mpg movie%d.jpg
|
||||
@end example
|
||||
|
||||
The @file{movie.mpg} used as input will be converted to
|
||||
@@ -161,15 +174,15 @@ The @file{movie.mpg} used as input will be converted to
|
||||
|
||||
Instead of relying on file format self-recognition, you may also use
|
||||
@table @option
|
||||
@item -c:v ppm
|
||||
@item -c:v png
|
||||
@item -c:v mjpeg
|
||||
@item -vcodec ppm
|
||||
@item -vcodec png
|
||||
@item -vcodec mjpeg
|
||||
@end table
|
||||
to force the encoding.
|
||||
|
||||
Applying that to the previous example:
|
||||
@example
|
||||
ffmpeg -i movie.mpg -f image2 -c:v mjpeg menu%d.jpg
|
||||
ffmpeg -i movie.mpg -f image2 -vcodec mjpeg menu%d.jpg
|
||||
@end example
|
||||
|
||||
Beware that there is no "jpeg" codec. Use "mjpeg" instead.
|
||||
@@ -188,21 +201,59 @@ Use @file{-} as file name.
|
||||
|
||||
Try '-f image2 test%d.jpg'.
|
||||
|
||||
@section Why can I not change the frame rate?
|
||||
@section Why can I not change the framerate?
|
||||
|
||||
Some codecs, like MPEG-1/2, only allow a small number of fixed frame rates.
|
||||
Choose a different codec with the -c:v command line option.
|
||||
Some codecs, like MPEG-1/2, only allow a small number of fixed framerates.
|
||||
Choose a different codec with the -vcodec command line option.
|
||||
|
||||
@section How do I encode Xvid or DivX video with ffmpeg?
|
||||
|
||||
Both Xvid and DivX (version 4+) are implementations of the ISO MPEG-4
|
||||
standard (note that there are many other coding formats that use this
|
||||
same standard). Thus, use '-c:v mpeg4' to encode in these formats. The
|
||||
same standard). Thus, use '-vcodec mpeg4' to encode in these formats. The
|
||||
default fourcc stored in an MPEG-4-coded file will be 'FMP4'. If you want
|
||||
a different fourcc, use the '-vtag' option. E.g., '-vtag xvid' will
|
||||
force the fourcc 'xvid' to be stored as the video fourcc rather than the
|
||||
default.
|
||||
|
||||
@section How do I encode videos which play on the iPod?
|
||||
|
||||
@table @option
|
||||
@item needed stuff
|
||||
-acodec libfaac -vcodec mpeg4 width<=320 height<=240
|
||||
@item working stuff
|
||||
mv4, title
|
||||
@item non-working stuff
|
||||
B-frames
|
||||
@item example command line
|
||||
ffmpeg -i input -acodec libfaac -ab 128k -vcodec mpeg4 -b 1200k -mbd 2 -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -s 320x180 -metadata title=X output.mp4
|
||||
@end table
|
||||
|
||||
@section How do I encode videos which play on the PSP?
|
||||
|
||||
@table @option
|
||||
@item needed stuff
|
||||
-acodec libfaac -vcodec mpeg4 width*height<=76800 width%16=0 height%16=0 -ar 24000 -r 30000/1001 or 15000/1001 -f psp
|
||||
@item working stuff
|
||||
mv4, title
|
||||
@item non-working stuff
|
||||
B-frames
|
||||
@item example command line
|
||||
ffmpeg -i input -acodec libfaac -ab 128k -vcodec mpeg4 -b 1200k -ar 24000 -mbd 2 -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -s 368x192 -r 30000/1001 -metadata title=X -f psp output.mp4
|
||||
@item needed stuff for H.264
|
||||
-acodec libfaac -vcodec libx264 width*height<=76800 width%16=0? height%16=0? -ar 48000 -coder 1 -r 30000/1001 or 15000/1001 -f psp
|
||||
@item working stuff for H.264
|
||||
title, loop filter
|
||||
@item non-working stuff for H.264
|
||||
CAVLC
|
||||
@item example command line
|
||||
ffmpeg -i input -acodec libfaac -ab 128k -vcodec libx264 -b 1200k -ar 48000 -mbd 2 -coder 1 -cmp 2 -subcmp 2 -s 368x192 -r 30000/1001 -metadata title=X -f psp -flags loop -trellis 2 -partitions parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 output.mp4
|
||||
@item higher resolution for newer PSP firmwares, width<=480, height<=272
|
||||
-vcodec libx264 -level 21 -coder 1 -f psp
|
||||
@item example command line
|
||||
ffmpeg -i input -acodec libfaac -ab 128k -ac 2 -ar 48000 -vcodec libx264 -level 21 -b 640k -coder 1 -f psp -flags +loop -trellis 2 -partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 -g 250 -s 480x272 output.mp4
|
||||
@end table
|
||||
|
||||
@section Which are good parameters for encoding high quality MPEG-4?
|
||||
|
||||
'-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -g 300 -pass 1/2',
|
||||
@@ -227,79 +278,19 @@ then you may use any file that DirectShow can read as input.
|
||||
|
||||
Just create an "input.avs" text file with this single line ...
|
||||
@example
|
||||
DirectShowSource("C:\path to your file\yourfile.asf")
|
||||
DirectShowSource("C:\path to your file\yourfile.asf")
|
||||
@end example
|
||||
... and then feed that text file to ffmpeg:
|
||||
@example
|
||||
ffmpeg -i input.avs
|
||||
ffmpeg -i input.avs
|
||||
@end example
|
||||
|
||||
For ANY other help on AviSynth, please visit the
|
||||
@uref{http://www.avisynth.org/, AviSynth homepage}.
|
||||
For ANY other help on Avisynth, please visit @url{http://www.avisynth.org/}.
|
||||
|
||||
@section How can I join video files?
|
||||
|
||||
To "join" video files is quite ambiguous. The following list explains the
|
||||
different kinds of "joining" and points out how those are addressed in
|
||||
FFmpeg. To join video files may mean:
|
||||
|
||||
@itemize
|
||||
|
||||
@item
|
||||
To put them one after the other: this is called to @emph{concatenate} them
|
||||
(in short: concat) and is addressed
|
||||
@ref{How can I concatenate video files, in this very faq}.
|
||||
|
||||
@item
|
||||
To put them together in the same file, to let the user choose between the
|
||||
different versions (example: different audio languages): this is called to
|
||||
@emph{multiplex} them together (in short: mux), and is done by simply
|
||||
invoking ffmpeg with several @option{-i} options.
|
||||
|
||||
@item
|
||||
For audio, to put all channels together in a single stream (example: two
|
||||
mono streams into one stereo stream): this is sometimes called to
|
||||
@emph{merge} them, and can be done using the
|
||||
@url{http://ffmpeg.org/ffmpeg-filters.html#amerge, @code{amerge}} filter.
|
||||
|
||||
@item
|
||||
For audio, to play one on top of the other: this is called to @emph{mix}
|
||||
them, and can be done by first merging them into a single stream and then
|
||||
using the @url{http://ffmpeg.org/ffmpeg-filters.html#pan, @code{pan}} filter to mix
|
||||
the channels at will.
|
||||
|
||||
@item
|
||||
For video, to display both together, side by side or one on top of a part of
|
||||
the other; it can be done using the
|
||||
@url{http://ffmpeg.org/ffmpeg-filters.html#overlay, @code{overlay}} video filter.
|
||||
|
||||
@end itemize
|
||||
|
||||
@anchor{How can I concatenate video files}
|
||||
@section How can I concatenate video files?
|
||||
|
||||
There are several solutions, depending on the exact circumstances.
|
||||
|
||||
@subsection Concatenating using the concat @emph{filter}
|
||||
|
||||
FFmpeg has a @url{http://ffmpeg.org/ffmpeg-filters.html#concat,
|
||||
@code{concat}} filter designed specifically for that, with examples in the
|
||||
documentation. This operation is recommended if you need to re-encode.
|
||||
|
||||
@subsection Concatenating using the concat @emph{demuxer}
|
||||
|
||||
FFmpeg has a @url{http://www.ffmpeg.org/ffmpeg-formats.html#concat,
|
||||
@code{concat}} demuxer which you can use when you want to avoid a re-encode and
|
||||
your format doesn't support file level concatenation.
|
||||
|
||||
@subsection Concatenating using the concat @emph{protocol} (file level)
|
||||
|
||||
FFmpeg has a @url{http://ffmpeg.org/ffmpeg-protocols.html#concat,
|
||||
@code{concat}} protocol designed specifically for that, with examples in the
|
||||
documentation.
|
||||
|
||||
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to concatenate
|
||||
video by merely concatenating the files containing them.
|
||||
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow to join video files by
|
||||
merely concatenating them.
|
||||
|
||||
Hence you may concatenate your multimedia files by first transcoding them to
|
||||
these privileged formats, then using the humble @code{cat} command (or the
|
||||
@@ -307,38 +298,28 @@ equally humble @code{copy} under Windows), and finally transcoding back to your
|
||||
format of choice.
|
||||
|
||||
@example
|
||||
ffmpeg -i input1.avi -qscale:v 1 intermediate1.mpg
|
||||
ffmpeg -i input2.avi -qscale:v 1 intermediate2.mpg
|
||||
ffmpeg -i input1.avi -sameq intermediate1.mpg
|
||||
ffmpeg -i input2.avi -sameq intermediate2.mpg
|
||||
cat intermediate1.mpg intermediate2.mpg > intermediate_all.mpg
|
||||
ffmpeg -i intermediate_all.mpg -qscale:v 2 output.avi
|
||||
ffmpeg -i intermediate_all.mpg -sameq output.avi
|
||||
@end example
|
||||
|
||||
Additionally, you can use the @code{concat} protocol instead of @code{cat} or
|
||||
@code{copy} which will avoid creation of a potentially huge intermediate file.
|
||||
Notice that you should either use @code{-sameq} or set a reasonably high
|
||||
bitrate for your intermediate and output files, if you want to preserve
|
||||
video quality.
|
||||
|
||||
@example
|
||||
ffmpeg -i input1.avi -qscale:v 1 intermediate1.mpg
|
||||
ffmpeg -i input2.avi -qscale:v 1 intermediate2.mpg
|
||||
ffmpeg -i concat:"intermediate1.mpg|intermediate2.mpg" -c copy intermediate_all.mpg
|
||||
ffmpeg -i intermediate_all.mpg -qscale:v 2 output.avi
|
||||
@end example
|
||||
|
||||
Note that you may need to escape the character "|" which is special for many
|
||||
shells.
|
||||
|
||||
Another option is usage of named pipes, should your platform support it:
|
||||
Also notice that you may avoid the huge intermediate files by taking advantage
|
||||
of named pipes, should your platform support it:
|
||||
|
||||
@example
|
||||
mkfifo intermediate1.mpg
|
||||
mkfifo intermediate2.mpg
|
||||
ffmpeg -i input1.avi -qscale:v 1 -y intermediate1.mpg < /dev/null &
|
||||
ffmpeg -i input2.avi -qscale:v 1 -y intermediate2.mpg < /dev/null &
|
||||
ffmpeg -i input1.avi -sameq -y intermediate1.mpg < /dev/null &
|
||||
ffmpeg -i input2.avi -sameq -y intermediate2.mpg < /dev/null &
|
||||
cat intermediate1.mpg intermediate2.mpg |\
|
||||
ffmpeg -f mpeg -i - -c:v mpeg4 -acodec libmp3lame output.avi
|
||||
ffmpeg -f mpeg -i - -sameq -vcodec mpeg4 -acodec libmp3lame output.avi
|
||||
@end example
|
||||
|
||||
@subsection Concatenating using raw audio and video
|
||||
|
||||
Similarly, the yuv4mpegpipe format, and the raw video, raw audio codecs also
|
||||
allow concatenation, and the transcoding step is almost lossless.
|
||||
When using multiple yuv4mpegpipe(s), the first line needs to be discarded
|
||||
@@ -346,8 +327,7 @@ from all but the first stream. This can be accomplished by piping through
|
||||
@code{tail} as seen below. Note that when piping through @code{tail} you
|
||||
must use command grouping, @code{@{ ;@}}, to background properly.
|
||||
|
||||
For example, let's say we want to concatenate two FLV files into an
|
||||
output.flv file:
|
||||
For example, let's say we want to join two FLV files into an output.flv file:
|
||||
|
||||
@example
|
||||
mkfifo temp1.a
|
||||
@@ -364,70 +344,33 @@ cat temp1.a temp2.a > all.a &
|
||||
cat temp1.v temp2.v > all.v &
|
||||
ffmpeg -f u16le -acodec pcm_s16le -ac 2 -ar 44100 -i all.a \
|
||||
-f yuv4mpegpipe -i all.v \
|
||||
-y output.flv
|
||||
-sameq -y output.flv
|
||||
rm temp[12].[av] all.[av]
|
||||
@end example
|
||||
|
||||
@section Using @option{-f lavfi}, audio becomes mono for no apparent reason.
|
||||
@section The ffmpeg program does not respect the -maxrate setting, some frames are bigger than maxrate/fps.
|
||||
|
||||
Use @option{-dumpgraph -} to find out exactly where the channel layout is
|
||||
lost.
|
||||
Read the MPEG spec about video buffer verifier.
|
||||
|
||||
Most likely, it is through @code{auto-inserted aresample}. Try to understand
|
||||
why the converting filter was needed at that place.
|
||||
@section I want CBR, but no matter what I do frame sizes differ.
|
||||
|
||||
Just before the output is a likely place, as @option{-f lavfi} currently
|
||||
only support packed S16.
|
||||
You do not understand what CBR is, please read the MPEG spec.
|
||||
Read about video buffer verifier and constant bitrate.
|
||||
The one sentence summary is that there is a buffer and the input rate is
|
||||
constant, the output can vary as needed.
|
||||
|
||||
Then insert the correct @code{aformat} explicitly in the filtergraph,
|
||||
specifying the exact format.
|
||||
@section How do I check if a stream is CBR?
|
||||
|
||||
@example
|
||||
aformat=sample_fmts=s16:channel_layouts=stereo
|
||||
@end example
|
||||
To quote the MPEG-2 spec:
|
||||
"There is no way to tell that a bitstream is constant bitrate without
|
||||
examining all of the vbv_delay values and making complicated computations."
|
||||
|
||||
@section Why does FFmpeg not see the subtitles in my VOB file?
|
||||
|
||||
VOB and a few other formats do not have a global header that describes
|
||||
everything present in the file. Instead, applications are supposed to scan
|
||||
the file to see what it contains. Since VOB files are frequently large, only
|
||||
the beginning is scanned. If the subtitles happen only later in the file,
|
||||
they will not be initially detected.
|
||||
|
||||
Some applications, including the @code{ffmpeg} command-line tool, can only
|
||||
work with streams that were detected during the initial scan; streams that
|
||||
are detected later are ignored.
|
||||
|
||||
The size of the initial scan is controlled by two options: @code{probesize}
|
||||
(default ~5 Mo) and @code{analyzeduration} (default 5,000,000 µs = 5 s). For
|
||||
the subtitle stream to be detected, both values must be large enough.
|
||||
|
||||
@section Why was the @command{ffmpeg} @option{-sameq} option removed? What to use instead?
|
||||
|
||||
The @option{-sameq} option meant "same quantizer", and made sense only in a
|
||||
very limited set of cases. Unfortunately, a lot of people mistook it for
|
||||
"same quality" and used it in places where it did not make sense: it had
|
||||
roughly the expected visible effect, but achieved it in a very inefficient
|
||||
way.
|
||||
|
||||
Each encoder has its own set of options to set the quality-vs-size balance,
|
||||
use the options for the encoder you are using to set the quality level to a
|
||||
point acceptable for your tastes. The most common options to do that are
|
||||
@option{-qscale} and @option{-qmax}, but you should peruse the documentation
|
||||
of the encoder you chose.
|
||||
|
||||
@chapter Development
|
||||
|
||||
@section Are there examples illustrating how to use the FFmpeg libraries, particularly libavcodec and libavformat?
|
||||
|
||||
Yes. Check the @file{doc/examples} directory in the source
|
||||
repository, also available online at:
|
||||
@url{https://github.com/FFmpeg/FFmpeg/tree/master/doc/examples}.
|
||||
|
||||
Examples are also installed by default, usually in
|
||||
@code{$PREFIX/share/ffmpeg/examples}.
|
||||
|
||||
Also you may read the Developers Guide of the FFmpeg documentation. Alternatively,
|
||||
Yes. Read the Developers Guide of the FFmpeg documentation. Alternatively,
|
||||
examine the source code for one of the many open source projects that
|
||||
already incorporate FFmpeg at (@url{projects.html}).
|
||||
|
||||
@@ -439,52 +382,64 @@ with @code{#ifdef}s related to the compiler.
|
||||
|
||||
@section Is Microsoft Visual C++ supported?
|
||||
|
||||
Yes. Please see the @uref{platform.html, Microsoft Visual C++}
|
||||
section in the FFmpeg documentation.
|
||||
No. Microsoft Visual C++ is not compliant to the C99 standard and does
|
||||
not - among other things - support the inline assembly used in FFmpeg.
|
||||
If you wish to use MSVC++ for your
|
||||
project then you can link the MSVC++ code with libav* as long as
|
||||
you compile the latter with a working C compiler. For more information, see
|
||||
the @emph{Microsoft Visual C++ compatibility} section in the FFmpeg
|
||||
documentation.
|
||||
|
||||
There have been efforts to make FFmpeg compatible with MSVC++ in the
|
||||
past. However, they have all been rejected as too intrusive, especially
|
||||
since MinGW does the job adequately. None of the core developers
|
||||
work with MSVC++ and thus this item is low priority. Should you find
|
||||
the silver bullet that solves this problem, feel free to shoot it at us.
|
||||
|
||||
We strongly recommend you to move over from MSVC++ to MinGW tools.
|
||||
|
||||
@section Can I use FFmpeg or libavcodec under Windows?
|
||||
|
||||
Yes, but the Cygwin or MinGW tools @emph{must} be used to compile FFmpeg.
|
||||
Read the @emph{Windows} section in the FFmpeg documentation to find more
|
||||
information.
|
||||
|
||||
To get help and instructions for building FFmpeg under Windows, check out
|
||||
the FFmpeg Windows Help Forum at
|
||||
@url{http://ffmpeg.arrozcru.org/}.
|
||||
|
||||
@section Can you add automake, libtool or autoconf support?
|
||||
|
||||
No. These tools are too bloated and they complicate the build.
|
||||
|
||||
@section Why not rewrite FFmpeg in object-oriented C++?
|
||||
@section Why not rewrite ffmpeg in object-oriented C++?
|
||||
|
||||
FFmpeg is already organized in a highly modular manner and does not need to
|
||||
be rewritten in a formal object language. Further, many of the developers
|
||||
favor straight C; it works for them. For more arguments on this matter,
|
||||
read @uref{http://www.tux.org/lkml/#s15, "Programming Religion"}.
|
||||
read "Programming Religion" at (@url{http://www.tux.org/lkml/#s15}).
|
||||
|
||||
@section Why are the ffmpeg programs devoid of debugging symbols?
|
||||
|
||||
The build process creates @command{ffmpeg_g}, @command{ffplay_g}, etc. which
|
||||
contain full debug information. Those binaries are stripped to create
|
||||
@command{ffmpeg}, @command{ffplay}, etc. If you need the debug information, use
|
||||
the *_g versions.
|
||||
The build process creates ffmpeg_g, ffplay_g, etc. which contain full debug
|
||||
information. Those binaries are stripped to create ffmpeg, ffplay, etc. If
|
||||
you need the debug information, use the *_g versions.
|
||||
|
||||
@section I do not like the LGPL, can I contribute code under the GPL instead?
|
||||
|
||||
Yes, as long as the code is optional and can easily and cleanly be placed
|
||||
under #if CONFIG_GPL without breaking anything. So, for example, a new codec
|
||||
under #if CONFIG_GPL without breaking anything. So for example a new codec
|
||||
or filter would be OK under GPL while a bug fix to LGPL code would not.
|
||||
|
||||
@section I'm using FFmpeg from within my C application but the linker complains about missing symbols from the libraries themselves.
|
||||
@section I want to compile xyz.c alone but my compiler produced many errors.
|
||||
|
||||
FFmpeg builds static libraries by default. In static libraries, dependencies
|
||||
are not handled. That has two consequences. First, you must specify the
|
||||
libraries in dependency order: @code{-lavdevice} must come before
|
||||
@code{-lavformat}, @code{-lavutil} must come after everything else, etc.
|
||||
Second, external libraries that are used in FFmpeg have to be specified too.
|
||||
Common code is in its own files in libav* and is used by the individual
|
||||
codecs. They will not work without the common parts, you have to compile
|
||||
the whole libav*. If you wish, disable some parts with configure switches.
|
||||
You can also try to hack it and remove more, but if you had problems fixing
|
||||
the compilation failure then you are probably not qualified for this.
|
||||
|
||||
An easy way to get the full list of required libraries in dependency order
|
||||
is to use @code{pkg-config}.
|
||||
|
||||
@example
|
||||
c99 -o program program.c $(pkg-config --cflags --libs libavformat libavcodec)
|
||||
@end example
|
||||
|
||||
See @file{doc/example/Makefile} and @file{doc/example/pc-uninstalled} for
|
||||
more details.
|
||||
|
||||
@section I'm using FFmpeg from within my C++ application but the linker complains about missing symbols which seem to be available.
|
||||
@section I'm using libavcodec from within my C++ application but the linker complains about missing symbols which seem to be available.
|
||||
|
||||
FFmpeg is a pure C project, so to use the libraries within your C++ application
|
||||
you need to explicitly state that you are using a C library. You can do this by
|
||||
@@ -494,13 +449,25 @@ See @url{http://www.parashift.com/c++-faq-lite/mixing-c-and-cpp.html#faq-32.3}
|
||||
|
||||
@section I'm using libavutil from within my C++ application but the compiler complains about 'UINT64_C' was not declared in this scope
|
||||
|
||||
FFmpeg is a pure C project using C99 math features, in order to enable C++
|
||||
Libav is a pure C project using C99 math features, in order to enable C++
|
||||
to use them you have to append -D__STDC_CONSTANT_MACROS to your CXXFLAGS
|
||||
|
||||
@section I have a file in memory / a API different from *open/*read/ libc how do I use it with libavformat?
|
||||
|
||||
You have to create a custom AVIOContext using @code{avio_alloc_context},
|
||||
see @file{libavformat/aviobuf.c} in FFmpeg and @file{libmpdemux/demux_lavf.c} in MPlayer or MPlayer2 sources.
|
||||
You have to implement a URLProtocol, see @file{libavformat/file.c} in
|
||||
FFmpeg and @file{libmpdemux/demux_lavf.c} in MPlayer sources.
|
||||
|
||||
@section I get "No compatible shell script interpreter found." in MSys.
|
||||
|
||||
The standard MSys bash (2.04) is broken. You need to install 2.05 or later.
|
||||
|
||||
@section I get "./configure: line <xxx>: pr: command not found" in MSys.
|
||||
|
||||
The standard MSys install doesn't come with pr. You need to get it from the coreutils package.
|
||||
|
||||
@section Where can I find libav* headers for Pascal/Delphi?
|
||||
|
||||
see @url{http://www.iversenit.dk/dev/ffmpeg-headers/}
|
||||
|
||||
@section Where is the documentation about ffv1, msmpeg4, asv1, 4xm?
|
||||
|
||||
@@ -512,25 +479,12 @@ Even if peculiar since it is network oriented, RTP is a container like any
|
||||
other. You have to @emph{demux} RTP before feeding the payload to libavcodec.
|
||||
In this specific case please look at RFC 4629 to see how it should be done.
|
||||
|
||||
@section AVStream.r_frame_rate is wrong, it is much larger than the frame rate.
|
||||
@section AVStream.r_frame_rate is wrong, it is much larger than the framerate.
|
||||
|
||||
@code{r_frame_rate} is NOT the average frame rate, it is the smallest frame rate
|
||||
r_frame_rate is NOT the average framerate, it is the smallest framerate
|
||||
that can accurately represent all timestamps. So no, it is not
|
||||
wrong if it is larger than the average!
|
||||
For example, if you have mixed 25 and 30 fps content, then @code{r_frame_rate}
|
||||
will be 150 (it is the least common multiple).
|
||||
If you are looking for the average frame rate, see @code{AVStream.avg_frame_rate}.
|
||||
|
||||
@section Why is @code{make fate} not running all tests?
|
||||
|
||||
Make sure you have the fate-suite samples and the @code{SAMPLES} Make variable
|
||||
or @code{FATE_SAMPLES} environment variable or the @code{--samples}
|
||||
@command{configure} option is set to the right path.
|
||||
|
||||
@section Why is @code{make fate} not finding the samples?
|
||||
|
||||
Do you happen to have a @code{~} character in the samples path to indicate a
|
||||
home directory? The value is used in ways where the shell cannot expand it,
|
||||
causing FATE to not find files. Just replace @code{~} by the full path.
|
||||
For example, if you have mixed 25 and 30 fps content, then r_frame_rate
|
||||
will be 150.
|
||||
|
||||
@bye
|
||||
|
||||
205
doc/fate.texi
205
doc/fate.texi
@@ -1,205 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Automated Testing Environment
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Automated Testing Environment}
|
||||
@end titlepage
|
||||
|
||||
@node Top
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Introduction
|
||||
|
||||
FATE is an extended regression suite on the client-side and a means
|
||||
for results aggregation and presentation on the server-side.
|
||||
|
||||
The first part of this document explains how you can use FATE from
|
||||
your FFmpeg source directory to test your ffmpeg binary. The second
|
||||
part describes how you can run FATE to submit the results to FFmpeg's
|
||||
FATE server.
|
||||
|
||||
In any way you can have a look at the publicly viewable FATE results
|
||||
by visiting this website:
|
||||
|
||||
@url{http://fate.ffmpeg.org/}
|
||||
|
||||
This is especially recommended for all people contributing source
|
||||
code to FFmpeg, as it can be seen if some test on some platform broke
|
||||
with their recent contribution. This usually happens on the platforms
|
||||
the developers could not test on.
|
||||
|
||||
The second part of this document describes how you can run FATE to
|
||||
submit your results to FFmpeg's FATE server. If you want to submit your
|
||||
results be sure to check that your combination of CPU, OS and compiler
|
||||
is not already listed on the above mentioned website.
|
||||
|
||||
In the third part you can find a comprehensive listing of FATE makefile
|
||||
targets and variables.
|
||||
|
||||
|
||||
@chapter Using FATE from your FFmpeg source directory
|
||||
|
||||
If you want to run FATE on your machine you need to have the samples
|
||||
in place. You can get the samples via the build target fate-rsync.
|
||||
Use this command from the top-level source directory:
|
||||
|
||||
@example
|
||||
make fate-rsync SAMPLES=fate-suite/
|
||||
make fate SAMPLES=fate-suite/
|
||||
@end example
|
||||
|
||||
The above commands set the samples location by passing a makefile
|
||||
variable via command line. It is also possible to set the samples
|
||||
location at source configuration time by invoking configure with
|
||||
`--samples=<path to the samples directory>'. Afterwards you can
|
||||
invoke the makefile targets without setting the SAMPLES makefile
|
||||
variable. This is illustrated by the following commands:
|
||||
|
||||
@example
|
||||
./configure --samples=fate-suite/
|
||||
make fate-rsync
|
||||
make fate
|
||||
@end example
|
||||
|
||||
Yet another way to tell FATE about the location of the sample
|
||||
directory is by making sure the environment variable FATE_SAMPLES
|
||||
contains the path to your samples directory. This can be achieved
|
||||
by e.g. putting that variable in your shell profile or by setting
|
||||
it in your interactive session.
|
||||
|
||||
@example
|
||||
FATE_SAMPLES=fate-suite/ make fate
|
||||
@end example
|
||||
|
||||
@float NOTE
|
||||
Do not put a '~' character in the samples path to indicate a home
|
||||
directory. Because of shell nuances, this will cause FATE to fail.
|
||||
@end float
|
||||
|
||||
To use a custom wrapper to run the test, pass @option{--target-exec} to
|
||||
@command{configure} or set the @var{TARGET_EXEC} Make variable.
|
||||
|
||||
|
||||
@chapter Submitting the results to the FFmpeg result aggregation server
|
||||
|
||||
To submit your results to the server you should run fate through the
|
||||
shell script @file{tests/fate.sh} from the FFmpeg sources. This script needs
|
||||
to be invoked with a configuration file as its first argument.
|
||||
|
||||
@example
|
||||
tests/fate.sh /path/to/fate_config
|
||||
@end example
|
||||
|
||||
A configuration file template with comments describing the individual
|
||||
configuration variables can be found at @file{doc/fate_config.sh.template}.
|
||||
|
||||
@ifhtml
|
||||
The mentioned configuration template is also available here:
|
||||
@verbatiminclude fate_config.sh.template
|
||||
@end ifhtml
|
||||
|
||||
Create a configuration that suits your needs, based on the configuration
|
||||
template. The `slot' configuration variable can be any string that is not
|
||||
yet used, but it is suggested that you name it adhering to the following
|
||||
pattern <arch>-<os>-<compiler>-<compiler version>. The configuration file
|
||||
itself will be sourced in a shell script, therefore all shell features may
|
||||
be used. This enables you to setup the environment as you need it for your
|
||||
build.
|
||||
|
||||
For your first test runs the `fate_recv' variable should be empty or
|
||||
commented out. This will run everything as normal except that it will omit
|
||||
the submission of the results to the server. The following files should be
|
||||
present in $workdir as specified in the configuration file:
|
||||
|
||||
@itemize
|
||||
@item configure.log
|
||||
@item compile.log
|
||||
@item test.log
|
||||
@item report
|
||||
@item version
|
||||
@end itemize
|
||||
|
||||
When you have everything working properly you can create an SSH key pair
|
||||
and send the public key to the FATE server administrator who can be contacted
|
||||
at the email address @email{fate-admin@@ffmpeg.org}.
|
||||
|
||||
Configure your SSH client to use public key authentication with that key
|
||||
when connecting to the FATE server. Also do not forget to check the identity
|
||||
of the server and to accept its host key. This can usually be achieved by
|
||||
running your SSH client manually and killing it after you accepted the key.
|
||||
The FATE server's fingerprint is:
|
||||
|
||||
@table @option
|
||||
@item RSA
|
||||
d3:f1:83:97:a4:75:2b:a6:fb:d6:e8:aa:81:93:97:51
|
||||
@item ECDSA
|
||||
76:9f:68:32:04:1e:d5:d4:ec:47:3f:dc:fc:18:17:86
|
||||
@end table
|
||||
|
||||
If you have problems connecting to the FATE server, it may help to try out
|
||||
the @command{ssh} command with one or more @option{-v} options. You should
|
||||
get detailed output concerning your SSH configuration and the authentication
|
||||
process.
|
||||
|
||||
The only thing left is to automate the execution of the fate.sh script and
|
||||
the synchronisation of the samples directory.
|
||||
|
||||
|
||||
@chapter FATE makefile targets and variables
|
||||
|
||||
@section Makefile targets
|
||||
|
||||
@table @option
|
||||
@item fate-rsync
|
||||
Download/synchronize sample files to the configured samples directory.
|
||||
|
||||
@item fate-list
|
||||
Will list all fate/regression test targets.
|
||||
|
||||
@item fate
|
||||
Run the FATE test suite (requires the fate-suite dataset).
|
||||
@end table
|
||||
|
||||
@section Makefile variables
|
||||
|
||||
@table @option
|
||||
@item V
|
||||
Verbosity level, can be set to 0, 1 or 2.
|
||||
@itemize
|
||||
@item 0: show just the test arguments
|
||||
@item 1: show just the command used in the test
|
||||
@item 2: show everything
|
||||
@end itemize
|
||||
|
||||
@item SAMPLES
|
||||
Specify or override the path to the FATE samples at make time, it has a
|
||||
meaning only while running the regression tests.
|
||||
|
||||
@item THREADS
|
||||
Specify how many threads to use while running regression tests, it is
|
||||
quite useful to detect thread-related regressions.
|
||||
|
||||
@item THREAD_TYPE
|
||||
Specify which threading strategy test, either @var{slice} or @var{frame},
|
||||
by default @var{slice+frame}
|
||||
|
||||
@item CPUFLAGS
|
||||
Specify CPU flags.
|
||||
|
||||
@item TARGET_EXEC
|
||||
Specify or override the wrapper used to run the tests.
|
||||
The @var{TARGET_EXEC} option provides a way to run FATE wrapped in
|
||||
@command{valgrind}, @command{qemu-user} or @command{wine} or on remote targets
|
||||
through @command{ssh}.
|
||||
|
||||
@item GEN
|
||||
Set to @var{1} to generate the missing or mismatched references.
|
||||
@end table
|
||||
|
||||
@section Examples
|
||||
|
||||
@example
|
||||
make V=1 SAMPLES=/var/fate/samples THREADS=2 CPUFLAGS=mmx fate
|
||||
@end example
|
||||
45
doc/fate.txt
Normal file
45
doc/fate.txt
Normal file
@@ -0,0 +1,45 @@
|
||||
FATE Automated Testing Environment
|
||||
|
||||
FATE provides a regression testsuite that can be run locally or configured
|
||||
to send reports to fate.ffmpeg.org.
|
||||
In order to run, it needs a large amount of data (samples and references)
|
||||
that is provided separately from the actual source distribution.
|
||||
|
||||
Use the following command to get the fate test samples
|
||||
|
||||
# make fate-rsync SAMPLES=fate-suite/
|
||||
|
||||
To inform the build system about the testsuite location, pass
|
||||
`--samples=<path to the samples>` to configure or set the SAMPLES Make
|
||||
variable or the FATE_SAMPLES environment variable to a suitable value.
|
||||
|
||||
For information on how to set up FATE to send results to the official FFmpeg
|
||||
testing framework, please refer to the following wiki page:
|
||||
http://wiki.multimedia.cx/index.php?title=FATE
|
||||
|
||||
FATE Makefile targets:
|
||||
|
||||
fate-list
|
||||
Will list all fate/regression test targets.
|
||||
|
||||
fate
|
||||
Run the FATE test suite (requires the fate-suite dataset).
|
||||
|
||||
Fate Makefile variables:
|
||||
|
||||
V
|
||||
Verbosity level, can be set to 0, 1 or 2.
|
||||
* 0: show just the test arguments
|
||||
* 1: show just the command used in the test
|
||||
* 2: show everything
|
||||
|
||||
SAMPLES
|
||||
Specify or override the path to the FATE samples at make time, it has a
|
||||
meaning only while running the regression tests.
|
||||
|
||||
THREADS
|
||||
Specify how many threads to use while running regression tests, it is
|
||||
quite useful to detect thread-related regressions.
|
||||
|
||||
Example:
|
||||
make V=1 SAMPLES=/var/fate/samples THREADS=2 fate
|
||||
@@ -1,29 +0,0 @@
|
||||
slot= # some unique identifier
|
||||
repo=git://source.ffmpeg.org/ffmpeg.git # the source repository
|
||||
samples= # path to samples directory
|
||||
workdir= # directory in which to do all the work
|
||||
#fate_recv="ssh -T fate@fate.ffmpeg.org" # command to submit report
|
||||
comment= # optional description
|
||||
build_only= # set to "yes" for a compile-only instance that skips tests
|
||||
|
||||
# the following are optional and map to configure options
|
||||
arch=
|
||||
cpu=
|
||||
cross_prefix=
|
||||
as=
|
||||
cc=
|
||||
ld=
|
||||
target_os=
|
||||
sysroot=
|
||||
target_exec=
|
||||
target_path=
|
||||
target_samples=
|
||||
extra_cflags=
|
||||
extra_ldflags=
|
||||
extra_libs=
|
||||
extra_conf= # extra configure options not covered above
|
||||
|
||||
#make= # name of GNU make if not 'make'
|
||||
makeopts= # extra options passed to 'make'
|
||||
#tar= # command to create a tar archive from its arguments on stdout,
|
||||
# defaults to 'tar c'
|
||||
@@ -1,45 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Bitstream Filters Documentation
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Bitstream Filters Documentation}
|
||||
@end titlepage
|
||||
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
|
||||
This document describes the bitstream filters provided by the
|
||||
libavcodec library.
|
||||
|
||||
A bitstream filter operates on the encoded stream data, and performs
|
||||
bitstream level modifications without performing decoding.
|
||||
|
||||
@c man end DESCRIPTION
|
||||
|
||||
@include bitstream_filters.texi
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{libavcodec.html,libavcodec}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavcodec(3)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffmpeg-bitstream-filters
|
||||
@settitle FFmpeg bitstream filters
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
@@ -1,42 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Codecs Documentation
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Codecs Documentation}
|
||||
@end titlepage
|
||||
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
|
||||
This document describes the codecs (decoders and encoders) provided by
|
||||
the libavcodec library.
|
||||
|
||||
@c man end DESCRIPTION
|
||||
|
||||
@include codecs.texi
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{libavcodec.html,libavcodec}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavcodec(3)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffmpeg-codecs
|
||||
@settitle FFmpeg codecs
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
@@ -1,42 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Devices Documentation
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Devices Documentation}
|
||||
@end titlepage
|
||||
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
|
||||
This document describes the input and output devices provided by the
|
||||
libavdevice library.
|
||||
|
||||
@c man end DESCRIPTION
|
||||
|
||||
@include devices.texi
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{libavdevice.html,libavdevice}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavdevice(3)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffmpeg-devices
|
||||
@settitle FFmpeg devices
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
@@ -1,42 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Filters Documentation
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Filters Documentation}
|
||||
@end titlepage
|
||||
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
|
||||
This document describes filters, sources, and sinks provided by the
|
||||
libavfilter library.
|
||||
|
||||
@c man end DESCRIPTION
|
||||
|
||||
@include filters.texi
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{libavfilter.html,libavfilter}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavfilter(3)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffmpeg-filters
|
||||
@settitle FFmpeg filters
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
@@ -1,42 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Formats Documentation
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Formats Documentation}
|
||||
@end titlepage
|
||||
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
|
||||
This document describes the supported formats (muxers and demuxers)
|
||||
provided by the libavformat library.
|
||||
|
||||
@c man end DESCRIPTION
|
||||
|
||||
@include formats.texi
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{libavformat.html,libavformat}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavformat(3)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffmpeg-formats
|
||||
@settitle FFmpeg formats
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
4561
doc/ffmpeg-mt-authorship.txt
Normal file
4561
doc/ffmpeg-mt-authorship.txt
Normal file
File diff suppressed because it is too large
Load Diff
@@ -1,42 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Protocols Documentation
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Protocols Documentation}
|
||||
@end titlepage
|
||||
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
|
||||
This document describes the input and output protocols provided by the
|
||||
libavformat library.
|
||||
|
||||
@c man end DESCRIPTION
|
||||
|
||||
@include protocols.texi
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{libavformat.html,libavformat}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavformat(3)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffmpeg-protocols
|
||||
@settitle FFmpeg protocols
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
@@ -1,44 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Resampler Documentation
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Resampler Documentation}
|
||||
@end titlepage
|
||||
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
|
||||
The FFmpeg resampler provides a high-level interface to the
|
||||
libswresample library audio resampling utilities. In particular it
|
||||
allows one to perform audio resampling, audio channel layout rematrixing,
|
||||
and convert audio format and packing layout.
|
||||
|
||||
@c man end DESCRIPTION
|
||||
|
||||
@include resampler.texi
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{libswresample.html,libswresample}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libswresample(3)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffmpeg-resampler
|
||||
@settitle FFmpeg Resampler
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
@@ -1,43 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Scaler Documentation
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Scaler Documentation}
|
||||
@end titlepage
|
||||
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
|
||||
The FFmpeg rescaler provides a high-level interface to the libswscale
|
||||
library image conversion utilities. In particular it allows one to perform
|
||||
image rescaling and pixel format conversion.
|
||||
|
||||
@c man end DESCRIPTION
|
||||
|
||||
@include scaler.texi
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{libswscale.html,libswscale}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libswscale(3)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffmpeg-scaler
|
||||
@settitle FFmpeg video scaling and pixel format converter
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
@@ -1,42 +0,0 @@
|
||||
\input texinfo @c -*- texinfo -*-
|
||||
|
||||
@settitle FFmpeg Utilities Documentation
|
||||
@titlepage
|
||||
@center @titlefont{FFmpeg Utilities Documentation}
|
||||
@end titlepage
|
||||
|
||||
@top
|
||||
|
||||
@contents
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
|
||||
This document describes some generic features and utilities provided
|
||||
by the libavutil library.
|
||||
|
||||
@c man end DESCRIPTION
|
||||
|
||||
@include utils.texi
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{libavutil.html,libavutil}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavutil(3)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffmpeg-utils
|
||||
@settitle FFmpeg utilities
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
1665
doc/ffmpeg.texi
1665
doc/ffmpeg.texi
File diff suppressed because it is too large
Load Diff
@@ -1,47 +0,0 @@
|
||||
:
|
||||
ffmpeg.c : libav*
|
||||
======== : ======
|
||||
:
|
||||
:
|
||||
--------------------------------:---> AVStream...
|
||||
InputStream input_streams[] / :
|
||||
/ :
|
||||
InputFile input_files[] +==========================+ / ^ :
|
||||
------> 0 | : st ---:-----------:--/ : :
|
||||
^ +------+-----------+-----+ / +--------------------------+ : :
|
||||
: | :ist_index--:-----:---------/ 1 | : st : | : :
|
||||
: +------+-----------+-----+ +==========================+ : :
|
||||
nb_input_files : | :ist_index--:-----:------------------> 2 | : st : | : :
|
||||
: +------+-----------+-----+ +--------------------------+ : nb_input_streams :
|
||||
: | :ist_index : | 3 | ... | : :
|
||||
v +------+-----------+-----+ +--------------------------+ : :
|
||||
--> 4 | | : :
|
||||
| +--------------------------+ : :
|
||||
| 5 | | : :
|
||||
| +==========================+ v :
|
||||
| :
|
||||
| :
|
||||
| :
|
||||
| :
|
||||
--------- --------------------------------:---> AVStream...
|
||||
\ / :
|
||||
OutputStream output_streams[] / :
|
||||
\ / :
|
||||
+======\======================/======+ ^ :
|
||||
------> 0 | : source_index : st-:--- | : :
|
||||
OutputFile output_files[] / +------------------------------------+ : :
|
||||
/ 1 | : : : | : :
|
||||
^ +------+------------+-----+ / +------------------------------------+ : :
|
||||
: | : ost_index -:-----:------/ 2 | : : : | : :
|
||||
nb_output_files : +------+------------+-----+ +====================================+ : :
|
||||
: | : ost_index -:-----|-----------------> 3 | : : : | : :
|
||||
: +------+------------+-----+ +------------------------------------+ : nb_output_streams :
|
||||
: | : : | 4 | | : :
|
||||
: +------+------------+-----+ +------------------------------------+ : :
|
||||
: | : : | 5 | | : :
|
||||
v +------+------------+-----+ +------------------------------------+ : :
|
||||
6 | | : :
|
||||
+------------------------------------+ : :
|
||||
7 | | : :
|
||||
+====================================+ v :
|
||||
:
|
||||
179
doc/ffplay.texi
179
doc/ffplay.texi
@@ -11,7 +11,11 @@
|
||||
|
||||
@chapter Synopsis
|
||||
|
||||
ffplay [@var{options}] [@file{input_file}]
|
||||
@example
|
||||
@c man begin SYNOPSIS
|
||||
ffplay [options] [@file{input_file}]
|
||||
@c man end
|
||||
@end example
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
@@ -34,17 +38,12 @@ Force displayed width.
|
||||
@item -y @var{height}
|
||||
Force displayed height.
|
||||
@item -s @var{size}
|
||||
Set frame size (WxH or abbreviation), needed for videos which do
|
||||
not contain a header with the frame size like raw YUV. This option
|
||||
has been deprecated in favor of private options, try -video_size.
|
||||
@item -fs
|
||||
Start in fullscreen mode.
|
||||
Set frame size (WxH or abbreviation), needed for videos which don't
|
||||
contain a header with the frame size like raw YUV.
|
||||
@item -an
|
||||
Disable audio.
|
||||
@item -vn
|
||||
Disable video.
|
||||
@item -sn
|
||||
Disable subtitles.
|
||||
@item -ss @var{pos}
|
||||
Seek to a given position in seconds.
|
||||
@item -t @var{duration}
|
||||
@@ -77,25 +76,11 @@ Default value is "video", if video is not present or cannot be played
|
||||
You can interactively cycle through the available show modes by
|
||||
pressing the key @key{w}.
|
||||
|
||||
@item -vf @var{filtergraph}
|
||||
Create the filtergraph specified by @var{filtergraph} and use it to
|
||||
filter the video stream.
|
||||
|
||||
@var{filtergraph} is a description of the filtergraph to apply to
|
||||
the stream, and must have a single video input and a single video
|
||||
output. In the filtergraph, the input is associated to the label
|
||||
@code{in}, and the output to the label @code{out}. See the
|
||||
ffmpeg-filters manual for more information about the filtergraph
|
||||
syntax.
|
||||
|
||||
You can specify this parameter multiple times and cycle through the specified
|
||||
filtergraphs along with the show modes by pressing the key @key{w}.
|
||||
|
||||
@item -af @var{filtergraph}
|
||||
@var{filtergraph} is a description of the filtergraph to apply to
|
||||
the input audio.
|
||||
@item -vf @var{filter_graph}
|
||||
@var{filter_graph} is a description of the filter graph to apply to
|
||||
the input video.
|
||||
Use the option "-filters" to show all the available filters (including
|
||||
sources and sinks).
|
||||
also sources and sinks).
|
||||
|
||||
@item -i @var{input_file}
|
||||
Read @var{input_file}.
|
||||
@@ -105,18 +90,18 @@ Read @var{input_file}.
|
||||
@table @option
|
||||
@item -pix_fmt @var{format}
|
||||
Set pixel format.
|
||||
This option has been deprecated in favor of private options, try -pixel_format.
|
||||
|
||||
@item -stats
|
||||
Print several playback statistics, in particular show the stream
|
||||
duration, the codec parameters, the current position in the stream and
|
||||
the audio/video synchronisation drift. It is on by default, to
|
||||
explicitly disable it you need to specify @code{-nostats}.
|
||||
|
||||
Show the stream duration, the codec parameters, the current position in
|
||||
the stream and the audio/video synchronisation drift.
|
||||
@item -bug
|
||||
Work around bugs.
|
||||
@item -fast
|
||||
Non-spec-compliant optimizations.
|
||||
@item -genpts
|
||||
Generate pts.
|
||||
@item -rtp_tcp
|
||||
Force RTP/TCP protocol usage instead of RTP/UDP. It is only meaningful
|
||||
if you are streaming with the RTSP protocol.
|
||||
@item -sync @var{type}
|
||||
Set the master clock to audio (@code{type=audio}), video
|
||||
(@code{type=video}) or external (@code{type=ext}). Default is audio. The
|
||||
@@ -125,8 +110,7 @@ players use audio as master clock, but in some cases (streaming or high
|
||||
quality broadcast) it is necessary to change that. This option is mainly
|
||||
used for debugging purposes.
|
||||
@item -threads @var{count}
|
||||
Set the thread count. By default, @command{ffplay} automatically detects a
|
||||
suitable number of threads to use.
|
||||
Set the thread count.
|
||||
@item -ast @var{audio_stream_number}
|
||||
Select the desired audio stream number, counting from 0. The number
|
||||
refers to the list of all the input audio streams. If it is greater
|
||||
@@ -148,36 +132,6 @@ Exit when video is done playing.
|
||||
Exit if any key is pressed.
|
||||
@item -exitonmousedown
|
||||
Exit if any mouse button is pressed.
|
||||
|
||||
@item -codec:@var{media_specifier} @var{codec_name}
|
||||
Force a specific decoder implementation for the stream identified by
|
||||
@var{media_specifier}, which can assume the values @code{a} (audio),
|
||||
@code{v} (video), and @code{s} subtitle.
|
||||
|
||||
@item -acodec @var{codec_name}
|
||||
Force a specific audio decoder.
|
||||
|
||||
@item -vcodec @var{codec_name}
|
||||
Force a specific video decoder.
|
||||
|
||||
@item -scodec @var{codec_name}
|
||||
Force a specific subtitle decoder.
|
||||
|
||||
@item -autorotate
|
||||
Automatically rotate the video according to presentation metadata. Enabled by
|
||||
default, use @option{-noautorotate} to disable it.
|
||||
|
||||
@item -framedrop
|
||||
Drop video frames if video is out of sync. Enabled by default if the master
|
||||
clock is not set to video. Use this option to enable frame dropping for all
|
||||
master clock sources, use @option{-noframedrop} to disable it.
|
||||
|
||||
@item -infbuf
|
||||
Do not limit the input buffer size, read as much data as possible from the
|
||||
input as soon as possible. Enabled by default for realtime streams, where data
|
||||
may be dropped if not read in time. Use this option to enable infinite buffers
|
||||
for all inputs, use @option{-noinfbuf} to disable it.
|
||||
|
||||
@end table
|
||||
|
||||
@section While playing
|
||||
@@ -193,25 +147,16 @@ Toggle full screen.
|
||||
Pause.
|
||||
|
||||
@item a
|
||||
Cycle audio channel in the current program.
|
||||
Cycle audio channel.
|
||||
|
||||
@item v
|
||||
Cycle video channel.
|
||||
|
||||
@item t
|
||||
Cycle subtitle channel in the current program.
|
||||
|
||||
@item c
|
||||
Cycle program.
|
||||
Cycle subtitle channel.
|
||||
|
||||
@item w
|
||||
Cycle video filters or show modes.
|
||||
|
||||
@item s
|
||||
Step to the next frame.
|
||||
|
||||
Pause if the stream is not already paused, step to the next video
|
||||
frame, and pause.
|
||||
Show audio waves.
|
||||
|
||||
@item left/right
|
||||
Seek backward/forward 10 seconds.
|
||||
@@ -219,11 +164,6 @@ Seek backward/forward 10 seconds.
|
||||
@item down/up
|
||||
Seek backward/forward 1 minute.
|
||||
|
||||
@item page down/page up
|
||||
Seek to the previous/next chapter.
|
||||
or if there are no chapters
|
||||
Seek backward/forward 10 minutes.
|
||||
|
||||
@item mouse click
|
||||
Seek to percentage in file corresponding to fraction of width.
|
||||
|
||||
@@ -231,75 +171,28 @@ Seek to percentage in file corresponding to fraction of width.
|
||||
|
||||
@c man end
|
||||
|
||||
@include config.texi
|
||||
@ifset config-all
|
||||
@set config-readonly
|
||||
@ifset config-avutil
|
||||
@include utils.texi
|
||||
@end ifset
|
||||
@ifset config-avcodec
|
||||
@include codecs.texi
|
||||
@include bitstream_filters.texi
|
||||
@end ifset
|
||||
@ifset config-avformat
|
||||
@include formats.texi
|
||||
@include eval.texi
|
||||
@include decoders.texi
|
||||
@include demuxers.texi
|
||||
@include muxers.texi
|
||||
@include indevs.texi
|
||||
@include outdevs.texi
|
||||
@include protocols.texi
|
||||
@end ifset
|
||||
@ifset config-avdevice
|
||||
@include devices.texi
|
||||
@end ifset
|
||||
@ifset config-swresample
|
||||
@include resampler.texi
|
||||
@end ifset
|
||||
@ifset config-swscale
|
||||
@include scaler.texi
|
||||
@end ifset
|
||||
@ifset config-avfilter
|
||||
@include filters.texi
|
||||
@end ifset
|
||||
@end ifset
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@ifset config-all
|
||||
@url{ffplay.html,ffplay},
|
||||
@end ifset
|
||||
@ifset config-not-all
|
||||
@url{ffplay-all.html,ffmpeg-all},
|
||||
@end ifset
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
||||
@url{ffmpeg-utils.html,ffmpeg-utils},
|
||||
@url{ffmpeg-scaler.html,ffmpeg-scaler},
|
||||
@url{ffmpeg-resampler.html,ffmpeg-resampler},
|
||||
@url{ffmpeg-codecs.html,ffmpeg-codecs},
|
||||
@url{ffmpeg-bitstream-filters.html,ffmpeg-bitstream-filters},
|
||||
@url{ffmpeg-formats.html,ffmpeg-formats},
|
||||
@url{ffmpeg-devices.html,ffmpeg-devices},
|
||||
@url{ffmpeg-protocols.html,ffmpeg-protocols},
|
||||
@url{ffmpeg-filters.html,ffmpeg-filters}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
@ifset config-all
|
||||
ffplay(1),
|
||||
@end ifset
|
||||
@ifset config-not-all
|
||||
ffplay-all(1),
|
||||
@end ifset
|
||||
ffmpeg(1), ffprobe(1), ffserver(1),
|
||||
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
|
||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
|
||||
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffplay
|
||||
@settitle FFplay media player
|
||||
|
||||
@c man begin SEEALSO
|
||||
ffmpeg(1), ffprobe(1), ffserver(1) and the FFmpeg HTML documentation
|
||||
@c man end
|
||||
|
||||
@c man begin AUTHORS
|
||||
The FFmpeg developers
|
||||
@c man end
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
|
||||
600
doc/ffprobe.texi
600
doc/ffprobe.texi
@@ -11,7 +11,13 @@
|
||||
|
||||
@chapter Synopsis
|
||||
|
||||
ffprobe [@var{options}] [@file{input_file}]
|
||||
The generic syntax is:
|
||||
|
||||
@example
|
||||
@c man begin SYNOPSIS
|
||||
ffprobe [options] [@file{input_file}]
|
||||
@c man end
|
||||
@end example
|
||||
|
||||
@chapter Description
|
||||
@c man begin DESCRIPTION
|
||||
@@ -36,16 +42,18 @@ for specifying which information to display, and for setting how
|
||||
ffprobe will show it.
|
||||
|
||||
ffprobe output is designed to be easily parsable by a textual filter,
|
||||
and consists of one or more sections of a form defined by the selected
|
||||
writer, which is specified by the @option{print_format} option.
|
||||
|
||||
Sections may contain other nested sections, and are identified by a
|
||||
name (which may be shared by other sections), and an unique
|
||||
name. See the output of @option{sections}.
|
||||
and consists of one or more sections of the form:
|
||||
@example
|
||||
[SECTION]
|
||||
key1=val1
|
||||
...
|
||||
keyN=valN
|
||||
[/SECTION]
|
||||
@end example
|
||||
|
||||
Metadata tags stored in the container or in the streams are recognized
|
||||
and printed in the corresponding "FORMAT", "STREAM" or "PROGRAM_STREAM"
|
||||
section.
|
||||
and printed in the corresponding "FORMAT" or "STREAM" section, and
|
||||
are prefixed by the string "TAG:".
|
||||
|
||||
@c man end
|
||||
|
||||
@@ -79,55 +87,6 @@ Use sexagesimal format HH:MM:SS.MICROSECONDS for time values.
|
||||
Prettify the format of the displayed values, it corresponds to the
|
||||
options "-unit -prefix -byte_binary_prefix -sexagesimal".
|
||||
|
||||
@item -of, -print_format @var{writer_name}[=@var{writer_options}]
|
||||
Set the output printing format.
|
||||
|
||||
@var{writer_name} specifies the name of the writer, and
|
||||
@var{writer_options} specifies the options to be passed to the writer.
|
||||
|
||||
For example for printing the output in JSON format, specify:
|
||||
@example
|
||||
-print_format json
|
||||
@end example
|
||||
|
||||
For more details on the available output printing formats, see the
|
||||
Writers section below.
|
||||
|
||||
@item -sections
|
||||
Print sections structure and section information, and exit. The output
|
||||
is not meant to be parsed by a machine.
|
||||
|
||||
@item -select_streams @var{stream_specifier}
|
||||
Select only the streams specified by @var{stream_specifier}. This
|
||||
option affects only the options related to streams
|
||||
(e.g. @code{show_streams}, @code{show_packets}, etc.).
|
||||
|
||||
For example to show only audio streams, you can use the command:
|
||||
@example
|
||||
ffprobe -show_streams -select_streams a INPUT
|
||||
@end example
|
||||
|
||||
To show only video packets belonging to the video stream with index 1:
|
||||
@example
|
||||
ffprobe -show_packets -select_streams v:1 INPUT
|
||||
@end example
|
||||
|
||||
@item -show_data
|
||||
Show payload data, as a hexadecimal and ASCII dump. Coupled with
|
||||
@option{-show_packets}, it will dump the packets' data. Coupled with
|
||||
@option{-show_streams}, it will dump the codec extradata.
|
||||
|
||||
The dump is printed as the "data" field. It may contain newlines.
|
||||
|
||||
@item -show_data_hash @var{algorithm}
|
||||
Show a hash of payload data, for packets with @option{-show_packets} and for
|
||||
codec extradata with @option{-show_streams}.
|
||||
|
||||
@item -show_error
|
||||
Show information about the error found when trying to probe the input.
|
||||
|
||||
The error information is printed within a section with name "ERROR".
|
||||
|
||||
@item -show_format
|
||||
Show information about the container format of the input multimedia
|
||||
stream.
|
||||
@@ -135,64 +94,6 @@ stream.
|
||||
All the container format information is printed within a section with
|
||||
name "FORMAT".
|
||||
|
||||
@item -show_format_entry @var{name}
|
||||
Like @option{-show_format}, but only prints the specified entry of the
|
||||
container format information, rather than all. This option may be given more
|
||||
than once, then all specified entries will be shown.
|
||||
|
||||
This option is deprecated, use @code{show_entries} instead.
|
||||
|
||||
@item -show_entries @var{section_entries}
|
||||
Set list of entries to show.
|
||||
|
||||
Entries are specified according to the following
|
||||
syntax. @var{section_entries} contains a list of section entries
|
||||
separated by @code{:}. Each section entry is composed by a section
|
||||
name (or unique name), optionally followed by a list of entries local
|
||||
to that section, separated by @code{,}.
|
||||
|
||||
If section name is specified but is followed by no @code{=}, all
|
||||
entries are printed to output, together with all the contained
|
||||
sections. Otherwise only the entries specified in the local section
|
||||
entries list are printed. In particular, if @code{=} is specified but
|
||||
the list of local entries is empty, then no entries will be shown for
|
||||
that section.
|
||||
|
||||
Note that the order of specification of the local section entries is
|
||||
not honored in the output, and the usual display order will be
|
||||
retained.
|
||||
|
||||
The formal syntax is given by:
|
||||
@example
|
||||
@var{LOCAL_SECTION_ENTRIES} ::= @var{SECTION_ENTRY_NAME}[,@var{LOCAL_SECTION_ENTRIES}]
|
||||
@var{SECTION_ENTRY} ::= @var{SECTION_NAME}[=[@var{LOCAL_SECTION_ENTRIES}]]
|
||||
@var{SECTION_ENTRIES} ::= @var{SECTION_ENTRY}[:@var{SECTION_ENTRIES}]
|
||||
@end example
|
||||
|
||||
For example, to show only the index and type of each stream, and the PTS
|
||||
time, duration time, and stream index of the packets, you can specify
|
||||
the argument:
|
||||
@example
|
||||
packet=pts_time,duration_time,stream_index : stream=index,codec_type
|
||||
@end example
|
||||
|
||||
To show all the entries in the section "format", but only the codec
|
||||
type in the section "stream", specify the argument:
|
||||
@example
|
||||
format : stream=codec_type
|
||||
@end example
|
||||
|
||||
To show all the tags in the stream and format sections:
|
||||
@example
|
||||
stream_tags : format_tags
|
||||
@end example
|
||||
|
||||
To show only the @code{title} tag (if available) in the stream
|
||||
sections:
|
||||
@example
|
||||
stream_tags=title
|
||||
@end example
|
||||
|
||||
@item -show_packets
|
||||
Show information about each packet contained in the input multimedia
|
||||
stream.
|
||||
@@ -200,13 +101,6 @@ stream.
|
||||
The information for each single packet is printed within a dedicated
|
||||
section with name "PACKET".
|
||||
|
||||
@item -show_frames
|
||||
Show information about each frame and subtitle contained in the input
|
||||
multimedia stream.
|
||||
|
||||
The information for each single frame is printed within a dedicated
|
||||
section with name "FRAME" or "SUBTITLE".
|
||||
|
||||
@item -show_streams
|
||||
Show information about each media stream contained in the input
|
||||
multimedia stream.
|
||||
@@ -214,468 +108,30 @@ multimedia stream.
|
||||
Each media stream information is printed within a dedicated section
|
||||
with name "STREAM".
|
||||
|
||||
@item -show_programs
|
||||
Show information about programs and their streams contained in the input
|
||||
multimedia stream.
|
||||
|
||||
Each media stream information is printed within a dedicated section
|
||||
with name "PROGRAM_STREAM".
|
||||
|
||||
@item -show_chapters
|
||||
Show information about chapters stored in the format.
|
||||
|
||||
Each chapter is printed within a dedicated section with name "CHAPTER".
|
||||
|
||||
@item -count_frames
|
||||
Count the number of frames per stream and report it in the
|
||||
corresponding stream section.
|
||||
|
||||
@item -count_packets
|
||||
Count the number of packets per stream and report it in the
|
||||
corresponding stream section.
|
||||
|
||||
@item -read_intervals @var{read_intervals}
|
||||
|
||||
Read only the specified intervals. @var{read_intervals} must be a
|
||||
sequence of interval specifications separated by ",".
|
||||
@command{ffprobe} will seek to the interval starting point, and will
|
||||
continue reading from that.
|
||||
|
||||
Each interval is specified by two optional parts, separated by "%".
|
||||
|
||||
The first part specifies the interval start position. It is
|
||||
interpreted as an abolute position, or as a relative offset from the
|
||||
current position if it is preceded by the "+" character. If this first
|
||||
part is not specified, no seeking will be performed when reading this
|
||||
interval.
|
||||
|
||||
The second part specifies the interval end position. It is interpreted
|
||||
as an absolute position, or as a relative offset from the current
|
||||
position if it is preceded by the "+" character. If the offset
|
||||
specification starts with "#", it is interpreted as the number of
|
||||
packets to read (not including the flushing packets) from the interval
|
||||
start. If no second part is specified, the program will read until the
|
||||
end of the input.
|
||||
|
||||
Note that seeking is not accurate, thus the actual interval start
|
||||
point may be different from the specified position. Also, when an
|
||||
interval duration is specified, the absolute end time will be computed
|
||||
by adding the duration to the interval start point found by seeking
|
||||
the file, rather than to the specified start value.
|
||||
|
||||
The formal syntax is given by:
|
||||
@example
|
||||
@var{INTERVAL} ::= [@var{START}|+@var{START_OFFSET}][%[@var{END}|+@var{END_OFFSET}]]
|
||||
@var{INTERVALS} ::= @var{INTERVAL}[,@var{INTERVALS}]
|
||||
@end example
|
||||
|
||||
A few examples follow.
|
||||
@itemize
|
||||
@item
|
||||
Seek to time 10, read packets until 20 seconds after the found seek
|
||||
point, then seek to position @code{01:30} (1 minute and thirty
|
||||
seconds) and read packets until position @code{01:45}.
|
||||
@example
|
||||
10%+20,01:30%01:45
|
||||
@end example
|
||||
|
||||
@item
|
||||
Read only 42 packets after seeking to position @code{01:23}:
|
||||
@example
|
||||
01:23%+#42
|
||||
@end example
|
||||
|
||||
@item
|
||||
Read only the first 20 seconds from the start:
|
||||
@example
|
||||
%+20
|
||||
@end example
|
||||
|
||||
@item
|
||||
Read from the start until position @code{02:30}:
|
||||
@example
|
||||
%02:30
|
||||
@end example
|
||||
@end itemize
|
||||
|
||||
@item -show_private_data, -private
|
||||
Show private data, that is data depending on the format of the
|
||||
particular shown element.
|
||||
This option is enabled by default, but you may need to disable it
|
||||
for specific uses, for example when creating XSD-compliant XML output.
|
||||
|
||||
@item -show_program_version
|
||||
Show information related to program version.
|
||||
|
||||
Version information is printed within a section with name
|
||||
"PROGRAM_VERSION".
|
||||
|
||||
@item -show_library_versions
|
||||
Show information related to library versions.
|
||||
|
||||
Version information for each library is printed within a section with
|
||||
name "LIBRARY_VERSION".
|
||||
|
||||
@item -show_versions
|
||||
Show information related to program and library versions. This is the
|
||||
equivalent of setting both @option{-show_program_version} and
|
||||
@option{-show_library_versions} options.
|
||||
|
||||
@item -show_pixel_formats
|
||||
Show information about all pixel formats supported by FFmpeg.
|
||||
|
||||
Pixel format information for each format is printed within a section
|
||||
with name "PIXEL_FORMAT".
|
||||
|
||||
@item -bitexact
|
||||
Force bitexact output, useful to produce output which is not dependent
|
||||
on the specific build.
|
||||
|
||||
@item -i @var{input_file}
|
||||
Read @var{input_file}.
|
||||
|
||||
@end table
|
||||
@c man end
|
||||
|
||||
@chapter Writers
|
||||
@c man begin WRITERS
|
||||
|
||||
A writer defines the output format adopted by @command{ffprobe}, and will be
|
||||
used for printing all the parts of the output.
|
||||
|
||||
A writer may accept one or more arguments, which specify the options
|
||||
to adopt. The options are specified as a list of @var{key}=@var{value}
|
||||
pairs, separated by ":".
|
||||
|
||||
All writers support the following options:
|
||||
|
||||
@table @option
|
||||
@item string_validation, sv
|
||||
Set string validation mode.
|
||||
|
||||
The following values are accepted.
|
||||
@table @samp
|
||||
@item fail
|
||||
The writer will fail immediately in case an invalid string (UTF-8)
|
||||
sequence or code point is found in the input. This is especially
|
||||
useful to validate input metadata.
|
||||
|
||||
@item ignore
|
||||
Any validation error will be ignored. This will result in possibly
|
||||
broken output, especially with the json or xml writer.
|
||||
|
||||
@item replace
|
||||
The writer will substitute invalid UTF-8 sequences or code points with
|
||||
the string specified with the @option{string_validation_replacement}.
|
||||
@end table
|
||||
|
||||
Default value is @samp{replace}.
|
||||
|
||||
@item string_validation_replacement, svr
|
||||
Set replacement string to use in case @option{string_validation} is
|
||||
set to @samp{replace}.
|
||||
|
||||
In case the option is not specified, the writer will assume the empty
|
||||
string, that is it will remove the invalid sequences from the input
|
||||
strings.
|
||||
@end table
|
||||
|
||||
A description of the currently available writers follows.
|
||||
|
||||
@section default
|
||||
Default format.
|
||||
|
||||
Print each section in the form:
|
||||
@example
|
||||
[SECTION]
|
||||
key1=val1
|
||||
...
|
||||
keyN=valN
|
||||
[/SECTION]
|
||||
@end example
|
||||
|
||||
Metadata tags are printed as a line in the corresponding FORMAT, STREAM or
|
||||
PROGRAM_STREAM section, and are prefixed by the string "TAG:".
|
||||
|
||||
A description of the accepted options follows.
|
||||
|
||||
@table @option
|
||||
|
||||
@item nokey, nk
|
||||
If set to 1 specify not to print the key of each field. Default value
|
||||
is 0.
|
||||
|
||||
@item noprint_wrappers, nw
|
||||
If set to 1 specify not to print the section header and footer.
|
||||
Default value is 0.
|
||||
@end table
|
||||
|
||||
@section compact, csv
|
||||
Compact and CSV format.
|
||||
|
||||
The @code{csv} writer is equivalent to @code{compact}, but supports
|
||||
different defaults.
|
||||
|
||||
Each section is printed on a single line.
|
||||
If no option is specifid, the output has the form:
|
||||
@example
|
||||
section|key1=val1| ... |keyN=valN
|
||||
@end example
|
||||
|
||||
Metadata tags are printed in the corresponding "format" or "stream"
|
||||
section. A metadata tag key, if printed, is prefixed by the string
|
||||
"tag:".
|
||||
|
||||
The description of the accepted options follows.
|
||||
|
||||
@table @option
|
||||
|
||||
@item item_sep, s
|
||||
Specify the character to use for separating fields in the output line.
|
||||
It must be a single printable character, it is "|" by default ("," for
|
||||
the @code{csv} writer).
|
||||
|
||||
@item nokey, nk
|
||||
If set to 1 specify not to print the key of each field. Its default
|
||||
value is 0 (1 for the @code{csv} writer).
|
||||
|
||||
@item escape, e
|
||||
Set the escape mode to use, default to "c" ("csv" for the @code{csv}
|
||||
writer).
|
||||
|
||||
It can assume one of the following values:
|
||||
@table @option
|
||||
@item c
|
||||
Perform C-like escaping. Strings containing a newline ('\n'), carriage
|
||||
return ('\r'), a tab ('\t'), a form feed ('\f'), the escaping
|
||||
character ('\') or the item separator character @var{SEP} are escaped using C-like fashioned
|
||||
escaping, so that a newline is converted to the sequence "\n", a
|
||||
carriage return to "\r", '\' to "\\" and the separator @var{SEP} is
|
||||
converted to "\@var{SEP}".
|
||||
|
||||
@item csv
|
||||
Perform CSV-like escaping, as described in RFC4180. Strings
|
||||
containing a newline ('\n'), a carriage return ('\r'), a double quote
|
||||
('"'), or @var{SEP} are enclosed in double-quotes.
|
||||
|
||||
@item none
|
||||
Perform no escaping.
|
||||
@end table
|
||||
|
||||
@item print_section, p
|
||||
Print the section name at the begin of each line if the value is
|
||||
@code{1}, disable it with value set to @code{0}. Default value is
|
||||
@code{1}.
|
||||
|
||||
@end table
|
||||
|
||||
@section flat
|
||||
Flat format.
|
||||
|
||||
A free-form output where each line contains an explicit key=value, such as
|
||||
"streams.stream.3.tags.foo=bar". The output is shell escaped, so it can be
|
||||
directly embedded in sh scripts as long as the separator character is an
|
||||
alphanumeric character or an underscore (see @var{sep_char} option).
|
||||
|
||||
The description of the accepted options follows.
|
||||
|
||||
@table @option
|
||||
@item sep_char, s
|
||||
Separator character used to separate the chapter, the section name, IDs and
|
||||
potential tags in the printed field key.
|
||||
|
||||
Default value is '.'.
|
||||
|
||||
@item hierarchical, h
|
||||
Specify if the section name specification should be hierarchical. If
|
||||
set to 1, and if there is more than one section in the current
|
||||
chapter, the section name will be prefixed by the name of the
|
||||
chapter. A value of 0 will disable this behavior.
|
||||
|
||||
Default value is 1.
|
||||
@end table
|
||||
|
||||
@section ini
|
||||
INI format output.
|
||||
|
||||
Print output in an INI based format.
|
||||
|
||||
The following conventions are adopted:
|
||||
|
||||
@itemize
|
||||
@item
|
||||
all key and values are UTF-8
|
||||
@item
|
||||
'.' is the subgroup separator
|
||||
@item
|
||||
newline, '\t', '\f', '\b' and the following characters are escaped
|
||||
@item
|
||||
'\' is the escape character
|
||||
@item
|
||||
'#' is the comment indicator
|
||||
@item
|
||||
'=' is the key/value separator
|
||||
@item
|
||||
':' is not used but usually parsed as key/value separator
|
||||
@end itemize
|
||||
|
||||
This writer accepts options as a list of @var{key}=@var{value} pairs,
|
||||
separated by ":".
|
||||
|
||||
The description of the accepted options follows.
|
||||
|
||||
@table @option
|
||||
@item hierarchical, h
|
||||
Specify if the section name specification should be hierarchical. If
|
||||
set to 1, and if there is more than one section in the current
|
||||
chapter, the section name will be prefixed by the name of the
|
||||
chapter. A value of 0 will disable this behavior.
|
||||
|
||||
Default value is 1.
|
||||
@end table
|
||||
|
||||
@section json
|
||||
JSON based format.
|
||||
|
||||
Each section is printed using JSON notation.
|
||||
|
||||
The description of the accepted options follows.
|
||||
|
||||
@table @option
|
||||
|
||||
@item compact, c
|
||||
If set to 1 enable compact output, that is each section will be
|
||||
printed on a single line. Default value is 0.
|
||||
@end table
|
||||
|
||||
For more information about JSON, see @url{http://www.json.org/}.
|
||||
|
||||
@section xml
|
||||
XML based format.
|
||||
|
||||
The XML output is described in the XML schema description file
|
||||
@file{ffprobe.xsd} installed in the FFmpeg datadir.
|
||||
|
||||
An updated version of the schema can be retrieved at the url
|
||||
@url{http://www.ffmpeg.org/schema/ffprobe.xsd}, which redirects to the
|
||||
latest schema committed into the FFmpeg development source code tree.
|
||||
|
||||
Note that the output issued will be compliant to the
|
||||
@file{ffprobe.xsd} schema only when no special global output options
|
||||
(@option{unit}, @option{prefix}, @option{byte_binary_prefix},
|
||||
@option{sexagesimal} etc.) are specified.
|
||||
|
||||
The description of the accepted options follows.
|
||||
|
||||
@table @option
|
||||
|
||||
@item fully_qualified, q
|
||||
If set to 1 specify if the output should be fully qualified. Default
|
||||
value is 0.
|
||||
This is required for generating an XML file which can be validated
|
||||
through an XSD file.
|
||||
|
||||
@item xsd_compliant, x
|
||||
If set to 1 perform more checks for ensuring that the output is XSD
|
||||
compliant. Default value is 0.
|
||||
This option automatically sets @option{fully_qualified} to 1.
|
||||
@end table
|
||||
|
||||
For more information about the XML format, see
|
||||
@url{http://www.w3.org/XML/}.
|
||||
@c man end WRITERS
|
||||
|
||||
@chapter Timecode
|
||||
@c man begin TIMECODE
|
||||
|
||||
@command{ffprobe} supports Timecode extraction:
|
||||
|
||||
@itemize
|
||||
|
||||
@item
|
||||
MPEG1/2 timecode is extracted from the GOP, and is available in the video
|
||||
stream details (@option{-show_streams}, see @var{timecode}).
|
||||
|
||||
@item
|
||||
MOV timecode is extracted from tmcd track, so is available in the tmcd
|
||||
stream metadata (@option{-show_streams}, see @var{TAG:timecode}).
|
||||
|
||||
@item
|
||||
DV, GXF and AVI timecodes are available in format metadata
|
||||
(@option{-show_format}, see @var{TAG:timecode}).
|
||||
|
||||
@end itemize
|
||||
@c man end TIMECODE
|
||||
|
||||
@include config.texi
|
||||
@ifset config-all
|
||||
@set config-readonly
|
||||
@ifset config-avutil
|
||||
@include utils.texi
|
||||
@end ifset
|
||||
@ifset config-avcodec
|
||||
@include codecs.texi
|
||||
@include bitstream_filters.texi
|
||||
@end ifset
|
||||
@ifset config-avformat
|
||||
@include formats.texi
|
||||
@include decoders.texi
|
||||
@include demuxers.texi
|
||||
@include protocols.texi
|
||||
@end ifset
|
||||
@ifset config-avdevice
|
||||
@include devices.texi
|
||||
@end ifset
|
||||
@ifset config-swresample
|
||||
@include resampler.texi
|
||||
@end ifset
|
||||
@ifset config-swscale
|
||||
@include scaler.texi
|
||||
@end ifset
|
||||
@ifset config-avfilter
|
||||
@include filters.texi
|
||||
@end ifset
|
||||
@end ifset
|
||||
|
||||
@chapter See Also
|
||||
|
||||
@ifhtml
|
||||
@ifset config-all
|
||||
@url{ffprobe.html,ffprobe},
|
||||
@end ifset
|
||||
@ifset config-not-all
|
||||
@url{ffprobe-all.html,ffprobe-all},
|
||||
@end ifset
|
||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffserver.html,ffserver},
|
||||
@url{ffmpeg-utils.html,ffmpeg-utils},
|
||||
@url{ffmpeg-scaler.html,ffmpeg-scaler},
|
||||
@url{ffmpeg-resampler.html,ffmpeg-resampler},
|
||||
@url{ffmpeg-codecs.html,ffmpeg-codecs},
|
||||
@url{ffmpeg-bitstream-filters.html,ffmpeg-bitstream-filters},
|
||||
@url{ffmpeg-formats.html,ffmpeg-formats},
|
||||
@url{ffmpeg-devices.html,ffmpeg-devices},
|
||||
@url{ffmpeg-protocols.html,ffmpeg-protocols},
|
||||
@url{ffmpeg-filters.html,ffmpeg-filters}
|
||||
@end ifhtml
|
||||
|
||||
@ifnothtml
|
||||
@ifset config-all
|
||||
ffprobe(1),
|
||||
@end ifset
|
||||
@ifset config-not-all
|
||||
ffprobe-all(1),
|
||||
@end ifset
|
||||
ffmpeg(1), ffplay(1), ffserver(1),
|
||||
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
|
||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
|
||||
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
|
||||
@end ifnothtml
|
||||
|
||||
@include authors.texi
|
||||
@include indevs.texi
|
||||
|
||||
@ignore
|
||||
|
||||
@setfilename ffprobe
|
||||
@settitle ffprobe media prober
|
||||
|
||||
@c man begin SEEALSO
|
||||
ffmpeg(1), ffplay(1), ffserver(1) and the FFmpeg HTML documentation
|
||||
@c man end
|
||||
|
||||
@c man begin AUTHORS
|
||||
The FFmpeg developers
|
||||
@c man end
|
||||
|
||||
@end ignore
|
||||
|
||||
@bye
|
||||
|
||||
336
doc/ffprobe.xsd
336
doc/ffprobe.xsd
@@ -1,336 +0,0 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
|
||||
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
|
||||
targetNamespace="http://www.ffmpeg.org/schema/ffprobe"
|
||||
xmlns:ffprobe="http://www.ffmpeg.org/schema/ffprobe">
|
||||
|
||||
<xsd:element name="ffprobe" type="ffprobe:ffprobeType"/>
|
||||
|
||||
<xsd:complexType name="ffprobeType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="program_version" type="ffprobe:programVersionType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="library_versions" type="ffprobe:libraryVersionsType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="pixel_formats" type="ffprobe:pixelFormatsType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="packets" type="ffprobe:packetsType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="frames" type="ffprobe:framesType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="packets_and_frames" type="ffprobe:packetsAndFramesType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="programs" type="ffprobe:programsType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="streams" type="ffprobe:streamsType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="chapters" type="ffprobe:chaptersType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="format" type="ffprobe:formatType" minOccurs="0" maxOccurs="1" />
|
||||
<xsd:element name="error" type="ffprobe:errorType" minOccurs="0" maxOccurs="1" />
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="packetsType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="packet" type="ffprobe:packetType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="framesType">
|
||||
<xsd:sequence>
|
||||
<xsd:choice minOccurs="0" maxOccurs="unbounded">
|
||||
<xsd:element name="frame" type="ffprobe:frameType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
<xsd:element name="subtitle" type="ffprobe:subtitleType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:choice>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="packetsAndFramesType">
|
||||
<xsd:sequence>
|
||||
<xsd:choice minOccurs="0" maxOccurs="unbounded">
|
||||
<xsd:element name="packet" type="ffprobe:packetType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
<xsd:element name="frame" type="ffprobe:frameType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
<xsd:element name="subtitle" type="ffprobe:subtitleType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:choice>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="packetType">
|
||||
<xsd:attribute name="codec_type" type="xsd:string" use="required" />
|
||||
<xsd:attribute name="stream_index" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="pts" type="xsd:long" />
|
||||
<xsd:attribute name="pts_time" type="xsd:float" />
|
||||
<xsd:attribute name="dts" type="xsd:long" />
|
||||
<xsd:attribute name="dts_time" type="xsd:float" />
|
||||
<xsd:attribute name="duration" type="xsd:long" />
|
||||
<xsd:attribute name="duration_time" type="xsd:float" />
|
||||
<xsd:attribute name="convergence_duration" type="xsd:long" />
|
||||
<xsd:attribute name="convergence_duration_time" type="xsd:float" />
|
||||
<xsd:attribute name="size" type="xsd:long" use="required" />
|
||||
<xsd:attribute name="pos" type="xsd:long" />
|
||||
<xsd:attribute name="flags" type="xsd:string" use="required" />
|
||||
<xsd:attribute name="data" type="xsd:string" />
|
||||
<xsd:attribute name="data_hash" type="xsd:string" />
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="frameType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
<xsd:element name="side_data_list" type="ffprobe:frameSideDataListType" minOccurs="0" maxOccurs="1" />
|
||||
</xsd:sequence>
|
||||
|
||||
<xsd:attribute name="media_type" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="key_frame" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="pts" type="xsd:long" />
|
||||
<xsd:attribute name="pts_time" type="xsd:float"/>
|
||||
<xsd:attribute name="pkt_pts" type="xsd:long" />
|
||||
<xsd:attribute name="pkt_pts_time" type="xsd:float"/>
|
||||
<xsd:attribute name="pkt_dts" type="xsd:long" />
|
||||
<xsd:attribute name="pkt_dts_time" type="xsd:float"/>
|
||||
<xsd:attribute name="best_effort_timestamp" type="xsd:long" />
|
||||
<xsd:attribute name="best_effort_timestamp_time" type="xsd:float" />
|
||||
<xsd:attribute name="pkt_duration" type="xsd:long" />
|
||||
<xsd:attribute name="pkt_duration_time" type="xsd:float"/>
|
||||
<xsd:attribute name="pkt_pos" type="xsd:long" />
|
||||
<xsd:attribute name="pkt_size" type="xsd:int" />
|
||||
|
||||
<!-- audio attributes -->
|
||||
<xsd:attribute name="sample_fmt" type="xsd:string"/>
|
||||
<xsd:attribute name="nb_samples" type="xsd:long" />
|
||||
<xsd:attribute name="channels" type="xsd:int" />
|
||||
<xsd:attribute name="channel_layout" type="xsd:string"/>
|
||||
|
||||
<!-- video attributes -->
|
||||
<xsd:attribute name="width" type="xsd:long" />
|
||||
<xsd:attribute name="height" type="xsd:long" />
|
||||
<xsd:attribute name="pix_fmt" type="xsd:string"/>
|
||||
<xsd:attribute name="sample_aspect_ratio" type="xsd:string"/>
|
||||
<xsd:attribute name="pict_type" type="xsd:string"/>
|
||||
<xsd:attribute name="coded_picture_number" type="xsd:long" />
|
||||
<xsd:attribute name="display_picture_number" type="xsd:long" />
|
||||
<xsd:attribute name="interlaced_frame" type="xsd:int" />
|
||||
<xsd:attribute name="top_field_first" type="xsd:int" />
|
||||
<xsd:attribute name="repeat_pict" type="xsd:int" />
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="frameSideDataListType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="side_data" type="ffprobe:frameSideDataType" minOccurs="1" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
<xsd:complexType name="frameSideDataType">
|
||||
<xsd:attribute name="side_data_type" type="xsd:string"/>
|
||||
<xsd:attribute name="side_data_size" type="xsd:int" />
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="subtitleType">
|
||||
<xsd:attribute name="media_type" type="xsd:string" fixed="subtitle" use="required"/>
|
||||
<xsd:attribute name="pts" type="xsd:long" />
|
||||
<xsd:attribute name="pts_time" type="xsd:float"/>
|
||||
<xsd:attribute name="format" type="xsd:int" />
|
||||
<xsd:attribute name="start_display_time" type="xsd:int" />
|
||||
<xsd:attribute name="end_display_time" type="xsd:int" />
|
||||
<xsd:attribute name="num_rects" type="xsd:int" />
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="streamsType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="stream" type="ffprobe:streamType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="programsType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="program" type="ffprobe:programType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="streamDispositionType">
|
||||
<xsd:attribute name="default" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="dub" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="original" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="comment" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="lyrics" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="karaoke" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="forced" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="hearing_impaired" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="visual_impaired" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="clean_effects" type="xsd:int" use="required" />
|
||||
<xsd:attribute name="attached_pic" type="xsd:int" use="required" />
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="streamType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="disposition" type="ffprobe:streamDispositionType" minOccurs="0" maxOccurs="1"/>
|
||||
<xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
|
||||
<xsd:attribute name="index" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="codec_name" type="xsd:string" />
|
||||
<xsd:attribute name="codec_long_name" type="xsd:string" />
|
||||
<xsd:attribute name="profile" type="xsd:string" />
|
||||
<xsd:attribute name="codec_type" type="xsd:string" />
|
||||
<xsd:attribute name="codec_time_base" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="codec_tag" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="codec_tag_string" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="extradata" type="xsd:string" />
|
||||
<xsd:attribute name="extradata_hash" type="xsd:string" />
|
||||
|
||||
<!-- video attributes -->
|
||||
<xsd:attribute name="width" type="xsd:int"/>
|
||||
<xsd:attribute name="height" type="xsd:int"/>
|
||||
<xsd:attribute name="has_b_frames" type="xsd:int"/>
|
||||
<xsd:attribute name="sample_aspect_ratio" type="xsd:string"/>
|
||||
<xsd:attribute name="display_aspect_ratio" type="xsd:string"/>
|
||||
<xsd:attribute name="pix_fmt" type="xsd:string"/>
|
||||
<xsd:attribute name="level" type="xsd:int"/>
|
||||
<xsd:attribute name="color_range" type="xsd:string"/>
|
||||
<xsd:attribute name="color_space" type="xsd:string"/>
|
||||
<xsd:attribute name="color_transfer" type="xsd:string"/>
|
||||
<xsd:attribute name="color_primaries" type="xsd:string"/>
|
||||
<xsd:attribute name="chroma_location" type="xsd:string"/>
|
||||
<xsd:attribute name="timecode" type="xsd:string"/>
|
||||
|
||||
<!-- audio attributes -->
|
||||
<xsd:attribute name="sample_fmt" type="xsd:string"/>
|
||||
<xsd:attribute name="sample_rate" type="xsd:int"/>
|
||||
<xsd:attribute name="channels" type="xsd:int"/>
|
||||
<xsd:attribute name="channel_layout" type="xsd:string"/>
|
||||
<xsd:attribute name="bits_per_sample" type="xsd:int"/>
|
||||
|
||||
<xsd:attribute name="id" type="xsd:string"/>
|
||||
<xsd:attribute name="r_frame_rate" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="avg_frame_rate" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="time_base" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="start_pts" type="xsd:long"/>
|
||||
<xsd:attribute name="start_time" type="xsd:float"/>
|
||||
<xsd:attribute name="duration_ts" type="xsd:long"/>
|
||||
<xsd:attribute name="duration" type="xsd:float"/>
|
||||
<xsd:attribute name="bit_rate" type="xsd:int"/>
|
||||
<xsd:attribute name="max_bit_rate" type="xsd:int"/>
|
||||
<xsd:attribute name="bits_per_raw_sample" type="xsd:int"/>
|
||||
<xsd:attribute name="nb_frames" type="xsd:int"/>
|
||||
<xsd:attribute name="nb_read_frames" type="xsd:int"/>
|
||||
<xsd:attribute name="nb_read_packets" type="xsd:int"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="programType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
<xsd:element name="streams" type="ffprobe:streamsType" minOccurs="0" maxOccurs="1"/>
|
||||
</xsd:sequence>
|
||||
|
||||
<xsd:attribute name="program_id" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="program_num" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="nb_streams" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="start_time" type="xsd:float"/>
|
||||
<xsd:attribute name="start_pts" type="xsd:long"/>
|
||||
<xsd:attribute name="end_time" type="xsd:float"/>
|
||||
<xsd:attribute name="end_pts" type="xsd:long"/>
|
||||
<xsd:attribute name="pmt_pid" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="pcr_pid" type="xsd:int" use="required"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="formatType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
|
||||
<xsd:attribute name="filename" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="nb_streams" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="nb_programs" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="format_name" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="format_long_name" type="xsd:string"/>
|
||||
<xsd:attribute name="start_time" type="xsd:float"/>
|
||||
<xsd:attribute name="duration" type="xsd:float"/>
|
||||
<xsd:attribute name="size" type="xsd:long"/>
|
||||
<xsd:attribute name="bit_rate" type="xsd:long"/>
|
||||
<xsd:attribute name="probe_score" type="xsd:int"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="tagType">
|
||||
<xsd:attribute name="key" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="value" type="xsd:string" use="required"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="errorType">
|
||||
<xsd:attribute name="code" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="string" type="xsd:string" use="required"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="programVersionType">
|
||||
<xsd:attribute name="version" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="copyright" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="build_date" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="build_time" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="compiler_ident" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="configuration" type="xsd:string" use="required"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="chaptersType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="chapter" type="ffprobe:chapterType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="chapterType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
|
||||
<xsd:attribute name="id" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="time_base" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="start" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="start_time" type="xsd:float"/>
|
||||
<xsd:attribute name="end" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="end_time" type="xsd:float" use="required"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="libraryVersionType">
|
||||
<xsd:attribute name="name" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="major" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="minor" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="micro" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="version" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="ident" type="xsd:string" use="required"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="libraryVersionsType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="library_version" type="ffprobe:libraryVersionType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="pixelFormatFlagsType">
|
||||
<xsd:attribute name="big_endian" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="palette" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="bitstream" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="hwaccel" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="planar" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="rgb" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="pseudopal" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="alpha" type="xsd:int" use="required"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="pixelFormatComponentType">
|
||||
<xsd:attribute name="index" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="bit_depth" type="xsd:int" use="required"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="pixelFormatComponentsType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="component" type="ffprobe:pixelFormatComponentType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="pixelFormatType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="flags" type="ffprobe:pixelFormatFlagsType" minOccurs="0" maxOccurs="1"/>
|
||||
<xsd:element name="components" type="ffprobe:pixelFormatComponentsType" minOccurs="0" maxOccurs="1"/>
|
||||
</xsd:sequence>
|
||||
|
||||
<xsd:attribute name="name" type="xsd:string" use="required"/>
|
||||
<xsd:attribute name="nb_components" type="xsd:int" use="required"/>
|
||||
<xsd:attribute name="log2_chroma_w" type="xsd:int"/>
|
||||
<xsd:attribute name="log2_chroma_h" type="xsd:int"/>
|
||||
<xsd:attribute name="bits_per_pixel" type="xsd:int"/>
|
||||
</xsd:complexType>
|
||||
|
||||
<xsd:complexType name="pixelFormatsType">
|
||||
<xsd:sequence>
|
||||
<xsd:element name="pixel_format" type="ffprobe:pixelFormatType" minOccurs="0" maxOccurs="unbounded"/>
|
||||
</xsd:sequence>
|
||||
</xsd:complexType>
|
||||
</xsd:schema>
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user