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Michael Niedermayer 9e6c5b6e86
swscale/output: alpha can become negative after scaling, use multiply 
Fixes: left shift of negative value -3245
Fixes: 69047/clusterfuzz-testcase-minimized-ffmpeg_SWS_fuzzer-6571511551950848

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 		2024-06-26 20:49:36 +02:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc avutil/stereo3d: add a new allocator function that returns a size 2024-06-25 00:01:05 -03:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools
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libavcodec avcodec/smcenc: make sure ny/nx are >= 0 2024-06-26 20:49:35 +02:00
libavdevice avdevice/avfoundation: add external video devices 2024-06-20 18:52:06 +02:00
libavfilter avfilter/qsvvpp: Remove unreachable code 2024-06-19 13:23:07 +02:00
libavformat avformat/matroskadec: don't use sizeof(AVStereo3D) 2024-06-25 00:01:11 -03:00
libavutil avutil/riscv/cpu: fix __riscv_v_min_vlen typo 2024-06-26 12:50:02 +02:00
libpostproc
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libswresample avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswscale swscale/output: alpha can become negative after scaling, use multiply 2024-06-26 20:49:36 +02:00
presets
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tests checkasm/vvc_alf: ensure right and bottom boundaries are not overwritten by asm 2024-06-25 19:32:17 +08:00
tools tools/target_dec_fuzzer: Adjust threshold for MV30 2024-06-26 20:49:33 +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.