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Vignesh Venkatasubramanian ab05e9a7f2 avcodec/libaomenc: Add parameter for avif single image encoding 
Add a parameter to libaom-av1 encoder to enforce some of the single
image constraints in the AV1 encoder. Setting this flag will limit
the encoder to producing exactly one frame and the sequence header
that is produced by the encoder will be conformant to the AVIF
specification [1].

Part of Fixing Trac ticket #7621

[1] https://aomediacodec.github.io/av1-avif

Signed-off-by:: Vignesh Venkatasubramanian <vigneshv@google.com>
2022-05-13 12:45:00 +05:30
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc doc/encoders.texi: Document updated behavior 2022-05-12 11:19:12 +02:00
ffbuild lib*/version: Move library version functions into files of their own 2022-05-10 06:49:32 +02:00
fftools doc/ffprobe: clarify that the input file is not optional 2022-04-21 12:34:04 +05:30
libavcodec avcodec/libaomenc: Add parameter for avif single image encoding 2022-05-13 12:45:00 +05:30
libavdevice avdevice/dshow: reuse unused variables. 2022-05-12 22:06:44 -03:00
libavfilter avfilter/af_biquads: always return same number of samples with block processing 2022-05-12 18:23:37 +02:00
libavformat avformat/hlsenc: check discont_program_date_time before use it in parse_playlist 2022-05-12 16:21:27 +08:00
libavutil lib*/version: Move library version functions into files of their own 2022-05-10 06:49:32 +02:00
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tests libavcodec/cinepakenc: Mark no-skip frames as keyframes 2022-05-12 11:19:12 +02:00
tools avcodec/codec_internal: Add FFCodec, hide internal part of AVCodec 2022-03-21 01:33:09 +01:00
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MAINTAINERS avformat/image2: add Jpeg XL as image2 format 2022-04-23 19:51:46 +02:00
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README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE

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 means to alter decoded audio and video through a directed graph of connected 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.