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Andreas Rheinhardt 477a398c3e avcodec/elbg: Also allocate buffers for recursion only once 
This is possible because the number of elements needed in each
recursion step decreases geometrically, so the geometric series
provides an upper bound for the sum of number of elements of
the needed buffers.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-23 23:53:38 +02:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc doc/demuxers: fix typo in concatdec options 2021-09-21 00:19:19 -05:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools ffmpeg_filter: don't try to autorotate frames with hwaccel pixel formats 2021-09-21 10:41:16 -03:00
libavcodec avcodec/elbg: Also allocate buffers for recursion only once 2021-09-23 23:53:38 +02:00
libavdevice libavdevice/avfoundation.m: fix potential unreleased lock issue 2021-09-17 15:31:40 +02:00
libavfilter avfilter/af_silenceremove: improve trimming middle silence 2021-09-23 23:34:45 +02:00
libavformat avformat/astenc: Simplify writing padding 2021-09-23 17:37:22 +02:00
libavutil avutil/mem: Deprecate av_mallocz_array() 2021-09-20 01:04:09 +02:00
libpostproc postproc/postprocess: Remove legacy cruft 2021-07-29 22:02:06 +02:00
libswresample Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
libswscale Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests avformat/mov: Set AVSTREAM_PARSE_HEADERS flag for H264 2021-09-23 10:35:09 -03:00
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LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
Makefile FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
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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.
  • 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 and will be ignored.