FFmpeg git repo
Go to file
Michael Niedermayer 47496eb97c avcodec/rawenc: Use ff_alloc_packet() instead of ff_alloc_packet2()
the later is not optimal when the buffer size is well known at allocation time

This avoids a memcpy()
Overall 2.5% speedup with a random 1920x1080 video

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-07-05 20:00:15 +02:00
compat
doc avfilter/avf_showvolume: make it possible to use current channel number in color expression 2015-07-03 18:43:21 +00:00
libavcodec avcodec/rawenc: Use ff_alloc_packet() instead of ff_alloc_packet2() 2015-07-05 20:00:15 +02:00
libavdevice lavd: Add library identifier 2015-07-01 00:13:58 +01:00
libavfilter avfilter/avf_showvolume: make it possible to use current channel number in color expression 2015-07-03 18:43:21 +00:00
libavformat avformat/yuv4mpegenc: use avio_printf() 2015-07-03 18:43:21 +00:00
libavresample
libavutil Merge commit '832129431fd5c693b12c32a1563944c631feaf36' 2015-07-03 21:06:46 +02:00
libpostproc
libswresample
libswscale YUV->BGR32 MMX support 2015-07-04 00:03:45 +02:00
presets
tests fate/api-tests: Tests that need samples should only run if SAMPLES is set 2015-07-04 02:15:16 +02:00
tools
.gitattributes
.gitignore Merge commit '1316df7aa98c4784f190d107206d0bb12c590b89' 2015-07-03 03:22:48 +02:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
Changelog lavfi: add (a)drawgraph filter 2015-07-03 18:43:21 +00:00
INSTALL.md
LICENSE.md
MAINTAINERS
Makefile Merge commit '1316df7aa98c4784f190d107206d0bb12c590b89' 2015-07-03 03:22:48 +02:00
README.md
RELEASE
arch.mak
cmdutils.c lavu: add an API function to return the Libav version string 2015-07-02 23:22:53 +02:00
cmdutils.h
cmdutils_common_opts.h
cmdutils_opencl.c
common.mak
configure ffmpeg: windows: respond to logoff and ctrl+break messages as well 2015-07-01 01:00:38 +02:00
ffmpeg.c ffmpeg: windows: respond to logoff and ctrl+break messages as well 2015-07-01 01:00:38 +02:00
ffmpeg.h
ffmpeg_dxva2.c
ffmpeg_filter.c ffmpeg_filter: log more information on failure to init simple filter graph 2015-07-02 04:56:10 +02:00
ffmpeg_opt.c ffmpeg_opt: Favor streams that had packets 2015-07-01 22:43:26 +02:00
ffmpeg_vda.c
ffmpeg_vdpau.c
ffplay.c
ffprobe.c
ffserver.c
ffserver_config.c
ffserver_config.h
library.mak
version.sh

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 analysis tool to inspect multimedia content.
  • ffserver is a multimedia streaming server for live broadcasts.
  • 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.