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Andreas Rheinhardt 7c5d256c9c avcodec/motion_est_template: Avoid using last + 1 element of array 
For an int array[8][2] using &array[8][0] (which is an int*
pointing to the element beyond the last element of array)
triggers a "runtime error: index 8 out of bounds for type 'int[8][2]'"
from (Clang-)UBSan in the fate-vsynth(1|2|_lena)-snow tests.

I don't know whether this is really undefined behaviour or does not
actually fall under the "pointer arithmetic with the element beyond
the last element of the array is allowed as long as it is not
accessed" exception". All I know is that the code itself does not
read from beyond the last element of the array.

Nevertheless rewrite the code to a form that UBSan does not complain
about.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-10-24 16:28:14 +02:00
compat
doc doc/encoders: Add doc for av1_qsv 2022-10-24 13:30:22 +08:00
ffbuild
fftools fftools/ffmpeg: set thread names 2022-10-24 02:00:31 +02:00
libavcodec avcodec/motion_est_template: Avoid using last + 1 element of array 2022-10-24 16:28:14 +02:00
libavdevice
libavfilter avfilter/vf_curves: add PCHIP interpolator and interp option 2022-10-22 19:35:44 +02:00
libavformat lavf: set internal thread names 2022-10-24 02:00:31 +02:00
libavutil lavu/thread: add an internal function for setting thread name 2022-10-24 02:00:31 +02:00
libpostproc
libswresample
libswscale
presets
tests
tools tools/target_dec_fuzzer: Adjust threshold for FFV1 2022-10-20 21:42:21 +02:00
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configure libavcodec/qsvenc_av1: add av1_qsv encoder 2022-10-24 13:30:22 +08:00
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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.