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Michael Niedermayer b18ca50c9a
avcodec/jfdctint_template: use unsigned z* in row_fdct() 
Fixes: signed integer overflow: 856827136 + 2123580416 cannot be represented in type 'int'
Fixes: 70772/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PRORES_KS_fuzzer-5180569961431040

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f27c8b04d3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-03-16 22:12:05 +01:00
compat compat/cuda: correct ushort4 to use ushort 2021-02-22 17:03:52 +01:00
doc Update for 4.4.5 2024-07-28 22:38:33 +02:00
ffbuild ffbuild: Avoid using the --preprocessor argument to windres 2021-06-24 23:25:30 +03:00
fftools fftools/ffmpeg: Check read() for failure 2024-07-21 18:55:35 +02:00
libavcodec avcodec/jfdctint_template: use unsigned z* in row_fdct() 2025-03-16 22:12:05 +01:00
libavdevice configure: improve check for POSIX ioctl 2024-09-01 19:57:19 -04:00
libavfilter avfilter/vf_xfade: Compute w2, h2 with float 2025-03-16 22:11:57 +01:00
libavformat avformat/mxfdec: Check timecode for overflow 2025-03-16 22:12:05 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil/slicethread: Check pthread_*_init() for failure 2024-07-22 16:30:02 +02:00
libpostproc Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00
libswresample libswresample/audioconvert: Fix undefined NULL + 0 2021-04-02 21:39:54 +02:00
libswscale swscale/output: Fix undefined integer overflow in yuv2rgba64_2_c_template() 2025-03-16 22:12:04 +01:00
presets
tests fate/subtitles: Ignore line endings for sub-scc test 2024-04-14 03:25:00 +02:00
tools tools/coverity: Phase 1 study of anti-halicogenic for coverity av_rescale() 2024-07-21 20:02:27 +02:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore tools/python: add script to convert TensorFlow model (.pb) to native model (.model) 2019-07-01 10:23:47 -03:00
.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.travis.yml Merge commit '899ee03088' 2019-03-14 15:53:16 -03:00
Changelog Update for 4.4.5 2024-07-28 22:38:33 +02:00
configure lsws/ppc/yuv2rgb_altivec: Fix build in non-VSX environments with Clang v2 2025-03-16 00:48:16 -04:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS Use https for repository links 2023-04-07 23:40:46 +02:00
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: Update the entries for the release maintainer for FFmpeg 2024-07-21 17:20:27 +02:00
Makefile avcodec: move core AVCodecContext functions from util.c to a new file 2021-03-19 15:35:35 -03:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE Update for 4.4.5 2024-07-28 22:38:33 +02:00
RELEASE_NOTES Update missed irc links 2021-06-18 20:53:56 +02:00

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 a mean to alter decoded Audio and Video through chain of 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.