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Martin Storsjö 1bd0bdcdc2 lavu: Add av_gettime_relative

Since av_gettime() is used in a number of places where actual
real time clock is required, the monotonic clock introduced in
ebef9f5a5 would have consequences that are hard to handle. Instead
split it into a separate function that can be used in the cases
where only relative time is desired.

On platform where no monotonic clock is available, the difference
between the two av_gettime functions is not clear, and one could
mistakenly use the relative clock where an absolute one is
required. Therefore add an offset, to make it evident that the
time returned from av_gettime_relative never is actual current
real time, even though it is based on av_gettime.

Based on a patch by Olivier Langlois.

Signed-off-by: Martin Storsjö <martin@martin.st>

2014-10-24 09:53:41 +03:00

compat

w32pthreads: use the condition variable API directly when targeting newer versions of Windows

2014-10-10 11:27:30 +03:00

doc

lavu: Add av_gettime_relative

2014-10-24 09:53:41 +03:00

libavcodec

lavc: make lmax/lmin into private options of mpegvideo encoders

2014-10-18 05:29:14 +02:00

libavdevice

oss_audio: use a macro to simplify ioctl() error checking

2014-10-18 16:15:10 +01:00

libavfilter

vf_format: check input validity

2014-10-20 10:38:38 +01:00

libavformat

nutdec: check av_new_packet return value

2014-10-21 14:37:48 +01:00

libavresample

avresample: Make sure the even check does not overflow

2014-10-18 16:15:10 +01:00

libavutil

lavu: Add av_gettime_relative

2014-10-24 09:53:41 +03:00

libswscale

swscale: fix sign extensions in yuv planar conversion

2014-10-18 16:15:10 +01:00

presets

presets: spelling error in libvpx 1080p50_60

2011-10-22 00:28:56 +02:00

tests

fate-mpeg4: use TARGET_SAMPLES for resize tests

2014-10-21 09:57:10 +02:00

tools

ismindex: use tfhd default duration if no sample duration

2014-10-16 09:22:22 +03:00

.gitignore

fate: Split fate-pixdesc tests and dispatch them through Make

2014-08-01 01:18:30 -07:00

arch.mak

aarch64: add armv8 CPU flag

2014-04-06 21:18:49 +02:00

avconv_dxva2.c

avconv_dxva2: define all used GUIDs directly instead of relying on the dxva2api.h header

2014-04-29 16:50:43 +02:00

avconv_filter.c

avconv: fix leak in filter error

2014-10-17 09:55:46 +01:00

avconv_opt.c

avconv: fix parsing the AVOptions for -target

2014-08-27 06:21:55 +00:00

avconv_vda.c

avconv: Support VDA hwaccel

2014-05-11 15:00:03 +02:00

avconv_vdpau.c

avconv_vdpau: update to new VDPAU interface

2014-10-06 06:20:40 +00:00

avconv.c

lavc: deprecate unused me_threshold field

2014-10-18 05:26:56 +02:00

avconv.h

avconv: do not use the stream codec context for encoding

2014-06-01 08:33:21 +02:00

avplay.c

avplay: Always free opts

2014-10-17 09:55:46 +01:00

avprobe.c

avprobe: Remove a pointless check

2014-10-17 09:55:46 +01:00

Changelog

rtpenc: HEVC/H.265 support

2014-09-24 23:33:26 +03:00

cmdutils_common_opts.h

avplay: Accept cpuflags option

2013-10-22 10:49:31 +02:00

cmdutils.c

cmdutils: Use the correct guard

2014-10-17 09:55:46 +01:00

cmdutils.h

cmdutils: Mark exit_program as av_noreturn

2014-03-28 00:40:43 +01:00

common.mak

build: export library dependencies in ${name}_FFLIBS

2014-05-20 00:43:51 +02:00

configure

w32pthreads: use the CONDITION_VARIABLE typedef if available

2014-10-10 11:27:26 +03:00

COPYING.GPLv2

Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1.

2009-06-05 09:51:31 +00:00

COPYING.GPLv3

Add configure option to upgrade (L)GPL to version 3.

2009-06-05 11:04:03 +00:00

COPYING.LGPLv2.1

cosmetics: Delete empty lines at end of file.

2012-02-09 12:26:45 +01:00

COPYING.LGPLv3

Add configure option to upgrade (L)GPL to version 3.

2009-06-05 11:04:03 +00:00

CREDITS

partially rename FFmpeg to Libav

2011-03-16 21:54:39 +01:00

INSTALL

doc: clarify configure features

2011-04-07 02:54:12 +02:00

library.mak

build: Support executable only ldflags

2014-07-21 22:18:35 +02:00

LICENSE

license: Mention that vf_interlace is GPL, not LGPL

2014-08-28 19:47:43 +02:00

Makefile

configure: add support for neon intrinsics

2014-07-21 23:18:29 +02:00

README

doc: Add more information in the README

2014-08-16 00:49:22 +02:00

README.md

doc: Add more information in the README

2014-08-16 00:49:22 +02:00

RELEASE

Prepare for 11_beta2 Release

2014-08-23 10:12:16 -04:00

version.sh

Drop git- prefix from version labels

2011-06-19 19:41:23 +01:00

README.md

Libav

Libav 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.
libavresample implements audio mixing and resampling routines.
libswscale implements color conversion and scaling routines.

Tools

avconv is a command line toolbox to manipulate, convert and stream multimedia content.
avplay is a minimalistic multimedia player.
avprobe 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 and in the wiki.

Examples

Conding examples are available in the doc/example directory.

License

Libav codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Languages

C 92.1%

Assembly 6%

Makefile 1.2%

C++ 0.3%

Objective-C 0.2%

Other 0.1%