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Nuo Mi bdb79fe60a avcodec/vvcdec: thread, ensure the parse stage gets the highest priority 
The parser stage is not parallelizable.
We need to schedule it as soon as possible to create later stages, which are more parallelizable

clips                                       | before | after | delta
--------------------------------------------|--------|-------|------
RitualDance_1920x1080_60_10_420_37_RA.266   | 342.7  | 365.3 |  6.59%
NovosobornayaSquare_1920x1080.bin           | 321.7  | 400   | 24.34%
Tango2_3840x2160_60_10_420_27_LD.266        |  82.3  |  91.7 | 11.42%
RitualDance_1920x1080_60_10_420_32_LD.266   | 323.7  | 319.3 | -1.36%
Chimera_8bit_1080P_1000_frames.vvc          | 364    | 411.3 | 12.99%
BQTerrace_1920x1080_60_10_420_22_RA.vvc     | 162.7  | 185.7 | 14.14%
2024-08-15 20:19:45 +08:00
compat
doc doc/mailing-list-faq: remove dead link 2024-08-14 18:25:37 +02:00
ffbuild
fftools fftools/ffmpeg: show video stats in progress output without filters 2024-08-14 15:17:58 +02:00
libavcodec avcodec/vvcdec: thread, ensure the parse stage gets the highest priority 2024-08-15 20:19:45 +08:00
libavdevice libavdevice/gdigrab: change hwnd tail check fail logic to !=null 2024-08-15 20:10:33 +08:00
libavfilter avfilter/video: don't zero allocated buffers if memory poisoning is used 2024-08-12 11:41:38 -03:00
libavformat avformat/iamf_parse: ignore Audio Elements with an unsupported type 2024-08-14 23:55:40 -03:00
libavutil avutil/hwcontext_videotoolbox: silence warning for RGB 2024-08-15 20:10:33 +08:00
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libswscale swscale/output: don't leave the alpha channel undefined in vuyx and xv36le 2024-08-13 14:49:41 -03:00
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tests checkasm: add tests for vvc dmvr 2024-08-15 20:19:45 +08:00
tools tools/target_dec_fuzzer: Check that FFv1 doesnt leave uninitialized memory in its buffers 2024-08-14 18:20:57 +02:00
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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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README.md
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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 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.