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Anton Khirnov e1b38680b7 fftools/cmdutils: put stream specifier handling back into cmdutils 
Stream specifiers were originally designed exclusively for CLI use and
were not intended to be public API. Handling them in avformat places
major restrictions on how they are used. E.g. if ffmpeg CLI wishes to
override some stream parameters, it has to change the demuxer fields
(since avformat_match_stream_specifier() does not have access to
anything else). However, such fields are supposed to be read-only for
the caller.

Furthermore having this code in avformat restricts extending the
specifier syntax. An example of such an extension will be added in
following commits.
2024-08-13 10:28:54 +02:00
compat
doc libavutil: deprecate the old Vulkan queue API, add doc/APIchanges entries 2024-08-11 05:13:15 +02:00
ffbuild
fftools fftools/cmdutils: put stream specifier handling back into cmdutils 2024-08-13 10:28:54 +02:00
libavcodec avcodec/avcodec_internal: fix type definition for the new functions 2024-08-12 23:10:48 -03:00
libavdevice avdevice/dshow: Initialize 2 pointers 2024-08-11 13:21:16 +02:00
libavfilter avfilter/video: don't zero allocated buffers if memory poisoning is used 2024-08-12 11:41:38 -03:00
libavformat avformat/movenc: don't look at previous track_id as it may not be set 2024-08-12 11:41:38 -03:00
libavutil hwcontext_vulkan: ignore false positive validation errors 2024-08-11 05:13:18 +02:00
libpostproc
libswresample swresample/swresample: Rectify invalid function in the documentation 2024-07-02 21:57:17 +02:00
libswscale sws/riscv: depend on RVB and simplify accordingly 2024-08-05 21:16:26 +03:00
presets
tests tests/iamf: match stream group by id in some tests 2024-08-12 11:41:38 -03:00
tools tools/target_dec_fuzzer: Use av_buffer_allocz() to avoid missing slices to have unpredictable content 2024-08-10 15:04:46 +02:00
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.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog lavc/qsvdec: Add VVC decoder 2024-07-30 13:40:21 +08:00
configure configure: check if assembler supports RV zicbop 2024-07-30 18:41:51 +03:00
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MAINTAINERS MAINTAINERS: add myself as d3d12va_encode maintainer 2024-07-10 18:10:08 +02:00
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README.md
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.