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Andreas Rheinhardt 03008c2811 avcodec/speedhqenc: Hardcode table to save space 
The SpeedHQ encoder currently reverses the entries of two small tables
and stores them in other tables. These other tables have a size of 48
bytes, yet the code for their initialization takes 135 bytes (GCC 9.3,
x64, O3 albeit in an av_cold function). So remove the runtime
initialization and hardcode the tables.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-05-05 17:55:37 +02:00
compat
doc ffprobe: add option to control optional fields display 2021-05-05 15:04:54 +05:30
ffbuild
fftools ffprobe: add option to control optional fields display 2021-05-05 15:04:54 +05:30
libavcodec avcodec/speedhqenc: Hardcode table to save space 2021-05-05 17:55:37 +02:00
libavdevice
libavfilter avfilter/vf_identity: fix typo 2021-05-01 08:45:30 +08:00
libavformat avformat/hlsenc: correct log text and supply packet details 2021-05-05 20:26:38 +05:30
libavutil avutil/mem: Also poison new av_realloc-allocated blocks 2021-04-30 10:24:32 +02:00
libpostproc
libswresample
libswscale
presets
tests tests/image: remove colorspace conversion from jpegls tests 2021-05-03 18:32:01 -03:00
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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configure configure: fix vulkan dep for libglslang based filters 2021-04-29 21:58:32 -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.