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18b9687308
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Niklas Haas 18b9687308 avfilter/swscale: always fix interlaced chroma location 
The current logic only fixes it when the user does not explicitly
specify the chroma location. However, this does not make a lot of sense.
Since there is no way to specify this property per-field, it effectively
*prevents* the user from being able to correctly scale interlaced frames
with top-aligned chroma.

It makes more sense to consider the user setting in the progressive case
only, and automatically adapt it to the correct interlaced field
positions, following the details of the MPEG specification.
2024-08-16 11:43:37 +02:00
compat
doc avfilter/vf_setparams: allow setting chroma location 2024-08-16 11:43:37 +02:00
ffbuild
fftools fftools/ffmpeg: show video stats in progress output without filters 2024-08-14 15:17:58 +02:00
libavcodec lavc/qsvdec: Add vvc_mp4toannexb bsf for QSV VVC decoder 2024-08-16 14:15:04 +08:00
libavdevice libavdevice/gdigrab: change hwnd tail check fail logic to !=null 2024-08-15 20:10:33 +08:00
libavfilter avfilter/swscale: always fix interlaced chroma location 2024-08-16 11:43:37 +02:00
libavformat avformat/iamf_parse: ignore Audio Elements with an unsupported type 2024-08-14 23:55:40 -03:00
libavutil hwcontext_vulkan: align host mapping size to minImportedHostPointerAlignment 2024-08-16 01:22:16 +02:00
libpostproc
libswresample
libswscale swscale/options: relax src/dst_h/v_chr_pos value range 2024-08-16 11:43:37 +02:00
presets
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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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.