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Michael Niedermayer db4555e244
avcodec/mdec: Check input space vs minimal block size 
Fixes: Timeout
Fixes: 481006706/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MDEC_fuzzer-6122832651419648

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 40cafc25cf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-05-04 17:13:21 +02:00
.forgejo forgejo: backport CI job names 2026-01-02 20:05:51 +01:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc doc/mailing-list-faq.texi: Fix typo in link anchor 2026-05-04 17:13:13 +02:00
ffbuild all: apply linter fixes 2025-12-03 20:27:24 +01:00
fftools fftools/ffmpeg_opt: limit recursion of presets 2026-05-04 17:13:19 +02:00
libavcodec avcodec/mdec: Check input space vs minimal block size 2026-05-04 17:13:21 +02:00
libavdevice avdevice/dshow: Initialize 2 pointers 2025-06-11 12:15:31 +02:00
libavfilter vfilter/vf_find_rect: Clamp x/y min/max to valid values 2026-05-04 17:13:16 +02:00
libavformat avformat/icodec: Check size 2026-05-04 17:13:20 +02:00
libavutil all: apply linter fixes 2025-12-03 20:27:24 +01:00
libpostproc libpostproc: check minimum size 2025-06-11 12:16:16 +02:00
libswresample swresample: Check ch layouts in swr_alloc_set_opts2() 2026-05-04 17:13:19 +02:00
libswscale swscale/rgb2rgb_template: fix signed shift into sign bit 2026-05-04 17:13:19 +02:00
presets
tests all: apply linter fixes 2025-12-03 20:27:24 +01:00
tools all: apply linter fixes 2025-12-03 20:27:24 +01:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap mailmap: stop git lying about who I commit things as 2022-11-04 19:37:46 +01:00
.travis.yml Merge commit '899ee03088' 2019-03-14 15:53:16 -03:00
Changelog Update for 6.1.4 2025-11-23 03:13:08 +01:00
configure configure: Clearer documentation for "disable-safe-bitstream-reader" 2025-06-11 12:16:13 +02:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 all: apply linter fixes 2025-12-03 20:27:24 +01:00
COPYING.LGPLv3
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
INSTALL.md INSTALL: explain the circular dependency issue and solution 2025-06-11 12:15:48 +02:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: Add Timo Rothenpieler to server admins 2024-07-24 16:52:24 +02:00
Makefile riscv: test for assembler support 2024-12-07 02:37:17 -05:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE Update for 6.1.4 2025-11-23 03:13:08 +01:00
RELEASE_NOTES RELEASE_NOTES: Based on the version from 5.1 2023-11-10 23:32:04 +01:00

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 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.