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Michael Niedermayer 7b32856011 ffmpeg: Maintain higher precision pts between video filter and fps code 
This is a bit ugly as it attempts to keep most of the computation
in integers before the double based fps code. The use of integers
is to reduce the chances of rounding differences between platforms

Previously the timestamp was rounded to the encoder timebase
before being converted back to double precision which could cause loss
of precision

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-01-16 19:53:17 +01:00
compat compat/avisynth/avxsynth_c: Clear all unused fields in returned structs 2014-12-11 16:12:47 +01:00
doc doc: fix showpalette position 2015-01-15 16:40:02 +01:00
libavcodec avcodec/g2meet: Use av_mallocz_array() for framebuffer allocation 2015-01-15 23:04:59 +01:00
libavdevice avdevice: Use av_format_get_control_message_cb() 2015-01-16 02:13:01 +01:00
libavfilter avfilter: add showpalette filter 2015-01-15 16:36:13 +01:00
libavformat Merge commit '3941df546276b190cc9362fd093e6721e8e52f50' 2015-01-16 14:20:37 +01:00
libavresample Merge commit '963f76144897d3f7684d82ec21e51dd50ea1106e' 2014-10-18 22:53:23 +02:00
libavutil avutil/pixfmt: Support the AV_PIX_FMT_GBRAP* formats with AV_HAVE_INCOMPATIBLE_LIBAV_ABI 2015-01-15 17:09:39 +01:00
libpostproc Add FFMPEG_VERSION into the binary libs 2014-12-19 19:32:40 +01:00
libswresample x86/swr: add SSE/AVX unpack_6ch functions 2015-01-12 15:40:03 -03:00
libswscale swscale: fix gbrap to gbrap alpha scaling 2015-01-16 02:47:15 +01:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests ffmpeg: Maintain higher precision pts between video filter and fps code 2015-01-16 19:53:17 +01:00
tools tools/uncoded_frame: Use avio_closep() to avoid leaving stale pointers in memory 2015-01-09 15:55:07 +01:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore gitignore: add test_copy.ffmeta 2014-10-17 15:57:12 +02:00
arch.mak Merge commit '8675bcb0addb1c7fb0b04682d1f3f95d5b8dae14' 2014-04-07 02:15:18 +02:00
Changelog avfilter: add showpalette filter 2015-01-15 16:36:13 +01:00
cmdutils_common_opts.h opts: add list device sources/sinks options 2014-10-25 20:20:31 +02:00
cmdutils_opencl.c cmdutils_opencl: Use av_malloc_array() 2014-07-01 03:49:36 +02:00
cmdutils.c cmdutils: use av_match_name to filter devices 2015-01-11 18:58:33 +01:00
cmdutils.h opts: add list device sources/sinks options 2014-10-25 20:20:31 +02:00
common.mak Merge commit 'afe176265480880e1f702c96a8ba434b0d88728b' 2014-05-20 03:33:30 +02:00
configure avutil/opencl: don't include config.h 2015-01-12 13:49:56 -03:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. 2012-02-09 12:26:45 +01:00
COPYING.LGPLv3
CREDITS CREDITS: redirect to Git log, remove current outdated content 2013-01-31 18:02:52 +01:00
ffmpeg_dxva2.c Merge commit 'a7c5fddac8137654cb503295c4dfb6492df43643' 2014-04-30 00:46:38 +02:00
ffmpeg_filter.c ffmpeg: fix accurate seeking with -copyts 2014-11-24 17:31:26 +01:00
ffmpeg_opt.c ffmpeg: improve data stream support 2015-01-16 02:52:04 +01:00
ffmpeg_vda.c Merge commit '1839fafa951308237c4672ffd9a94f927b26eac7' 2014-05-12 02:44:28 +02:00
ffmpeg_vdpau.c Merge commit '1f9237f2ac46dfbed1bfa1f4f0f1314c2a1d62ec' 2014-12-27 13:26:38 +01:00
ffmpeg.c ffmpeg: Maintain higher precision pts between video filter and fps code 2015-01-16 19:53:17 +01:00
ffmpeg.h ffmpeg: add sdp_file option 2014-12-28 02:05:34 +01:00
ffplay.c ffplay: dump format before selecting streams 2015-01-01 14:38:12 +01:00
ffprobe.c ffprobe: Support extracting the number of reference frames 2014-12-30 17:55:20 +01:00
ffserver_config.c ffserver_config: reflow add_codec() 2014-12-09 01:03:01 -03:00
ffserver_config.h ffserver: dont leak child arguments 2014-11-26 23:32:33 +01:00
ffserver.c ffserver: Use av_malloc_array() 2015-01-10 00:17:38 +01:00
INSTALL.md INSTALL: add markdown syntax 2014-05-28 22:38:38 +02:00
library.mak Merge commit 'bb0babd7054bed7edfd9f4d6b20cdba864de1830' 2014-07-22 02:45:45 +02:00
LICENSE.md LICENSE.md: mention mpdecimate and not decimate to be GPL 2015-01-10 13:32:55 +00:00
MAINTAINERS Adding Closed caption accessories 2015-01-11 22:19:48 +01:00
Makefile Makefile: add dependencies which require ffversion.h 2014-12-20 04:17:03 +01:00
README.md README: fix 2 typo in the doc/examples sentence 2014-11-03 09:21:45 +01:00
RELEASE RELEASE: Bump 2014-12-04 11:44:35 +01:00
RELEASE_NOTES avformat/mov: Disable XMP metadata by default 2014-12-11 21:47:37 +01:00
version.sh version.sh: Print versions based on the last git tag for release branches 2014-07-28 15:44:59 +02:00

README.md

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 is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe 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

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.