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Claudio Freire 60a76f8be8 AAC encoder: enforce SF delta in PNS and IS SFs 
Make sure to properly enforce maximum scalefactor delta in PNS
and I/S, not as an absolute range but relative to the previous
and first scalefactor, the latter important since PNS uses an
implicit inicial scalefactor derived from the global gain, and
encoded in a different way, which makes a big difference in the
allowed range.
2016-01-17 12:52:54 -03:00
compat os2threads: Add pthread_once() 2015-11-12 22:31:46 +01:00
doc avfilter: add ahistogram multimedia filter 2016-01-15 19:10:46 +01:00
libavcodec AAC encoder: enforce SF delta in PNS and IS SFs 2016-01-17 12:52:54 -03:00
libavdevice remove all uses of the deprecated avpicture_get_size() function 2016-01-17 12:01:35 +01:00
libavfilter avfilter/af_sidechaincompress & af_agate: use audio fifo from lavu 2016-01-15 21:49:42 +01:00
libavformat remove all uses of the deprecated avpicture_get_size() function 2016-01-17 12:01:35 +01:00
libavresample Merge commit 'cc4c24208159200b7aff5b5c313903c7f23fa345' 2016-01-02 10:13:58 +01:00
libavutil x86/fixed_dsp: add ff_butterflies_fixed_sse2 2016-01-16 21:09:38 -03:00
libpostproc
libswresample swr/resample: use av_clip_int16 instead of av_clip 2015-12-24 11:29:52 -08:00
libswscale swscale/x86/rgb2rgb_template: Fix planar2x() for short width 2016-01-17 12:34:34 +01:00
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tests fate: add 10-bit v210 encoder tests 2016-01-17 16:03:43 +01:00
tools avcodec: Remove libstagefright 2016-01-06 16:43:06 +00:00
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Changelog avfilter: add ahistogram multimedia filter 2016-01-15 19:10:46 +01:00
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CREDITS
ffmpeg_dxva2.c ffmpeg_dxva2: support vp9 hwaccel 2015-12-07 09:47:51 +01:00
ffmpeg_filter.c
ffmpeg_opt.c ffmpeg: use lavf API for applying bitstream filters 2015-12-28 08:34:30 -06:00
ffmpeg_qsv.c
ffmpeg_vdpau.c
ffmpeg_videotoolbox.c
ffmpeg.c ffmpeg: fix sws_dict leak on error exit 2016-01-17 01:19:43 +01:00
ffmpeg.h ffmpeg: use lavf API for applying bitstream filters 2015-12-28 08:34:30 -06:00
ffplay.c Revert "ffplay: Fix auto insertion point of rotation filter" 2015-12-28 03:44:31 +01:00
ffprobe.c ffprobe: avoid unnecessary pow and exp2 calls 2015-12-29 08:59:16 -08:00
ffserver_config.c
ffserver_config.h
ffserver.c ffserver: Cast time_t value when using it in a format string. 2015-12-29 16:00:34 +01:00
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MAINTAINERS avcodec: Remove libstagefright 2016-01-06 16:43:06 +00:00
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README.md
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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.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process. Few developers follow pull requests so they will likely be ignored.