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Martin Storsjö d69d12a5b9 checkasm: motion: Test different h parameters 
Previously, the checkasm test always passed h=8, so no other cases
were tested.

Out of the me_cmp functions, in practice, some functions are hardcoded
to always assume a 8x8 block (ignoring the h parameter), while others
do use the parameter. For those with hardcoded height, both the
reference C function and the assembly implementations ignore the
parameter similarly.

The documentation for the functions indicate that heights between
w/2 and 2*w, within the range of 4 to 16, should be supported. This
patch just tests random heights in that range, without knowing what
width the current function actually uses.

Signed-off-by: Martin Storsjö <martin@martin.st>
2022-08-17 00:00:50 +03:00
compat compat: add msvc windres wrapper 2022-08-13 14:42:52 +02:00
doc doc/APIchanges: add missing rgbaf16 pixfmt entry 2022-08-16 12:31:03 +02:00
ffbuild
fftools fftools/ffmpeg: store a separate copy of input codec parameters 2022-08-16 11:09:09 +02:00
libavcodec x86: Don't hardcode the height to 8 in sad8_xy2_mmx 2022-08-17 00:00:50 +03:00
libavdevice
libavfilter avfilter/vsrc_ddagrab: add options for more control over output format fallback 2022-08-13 15:22:14 +02:00
libavformat avformat/mov: fix encryption index in the case of multiple trun 2022-08-16 18:47:40 +08:00
libavutil lavu/tx: optimize and simplify inverse MDCTs 2022-08-16 01:22:38 +02:00
libpostproc
libswresample
libswscale swscale/aarch64: add vscale specializations 2022-08-16 13:40:42 +03:00
presets
tests checkasm: motion: Test different h parameters 2022-08-17 00:00:50 +03:00
tools
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configure compat: add msvc windres wrapper 2022-08-13 14:42:52 +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.