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Andreas Rheinhardt 56df06dd83 avcodec/bink: Don't waste space for VLC table 
The Bink video decoder uses VLCs; the longest codes of these VLCs have
different lengths, yet they are all so small that each VLC is read in
one go, so that the number of elements in the VLC table actually used by
each table is 1 << nb_bits, where nb_bits is the length of the longest
code. Yet when determining the size of the VLC table nb_bits has been
overestimated as the number of bits of the longest code in all VLCs,
making said table unnecessary big (2048 vs 976 elements).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-05-02 05:14:42 +02:00
compat
doc doc/filters: Documentation to add sess_config option for tensorflow backend 2021-04-29 20:57:52 +08:00
ffbuild libavresample: Remove deprecated library 2021-04-27 10:43:13 -03:00
fftools avformat: remove deprecated AVStream.codec 2021-04-27 11:47:24 -03:00
libavcodec avcodec/bink: Don't waste space for VLC table 2021-05-02 05:14:42 +02:00
libavdevice avdevice: Constify all devices 2021-04-27 11:48:05 -03:00
libavfilter avfilter/vf_identity: fix typo 2021-05-01 08:45:30 +08:00
libavformat avformat/dump: Remove remnants of codec timebase 2021-04-30 10:21:29 +02:00
libavutil avutil/mem: Also poison new av_realloc-allocated blocks 2021-04-30 10:24:32 +02:00
libpostproc Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswresample Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswscale Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
presets
tests fate: add adpcm_ima_ws test in a VQA v3 file 2021-04-29 23:52:46 +10:00
tools avfilter/dnn/dnn_backend_tf: simplify the code with ff_hex_to_data 2021-04-29 20:02:29 +08:00
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Changelog avformat/westwoodaudenc: Adds muxer for Westwood AUD format. 2021-04-26 19:56:33 +10:00
configure configure: fix vulkan dep for libglslang based filters 2021-04-29 21:58:32 -03:00
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Makefile libavresample: Remove deprecated library 2021-04-27 10:43:13 -03:00
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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.