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Michael Niedermayer bdaee31e48
avcodec/wmv2dec: More Checks about reading skip bits 
Fixes: out of array read with --disable-safe-bitstream-reader
Fixes: poc_wmv2.avi

Note, this requires the safe bitstream reader to be turned off by the user and the user disregarding the security warning

Change suggested by: Guanni Qu <qguanni@gmail.com>
Found-by: Guanni Qu <qguanni@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f73849887c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-05-03 19:56:53 +02:00
.forgejo forgejo: backport CI job names 2026-01-02 20:00:45 +01:00
compat all: fix typos found by codespell 2025-08-03 13:48:47 +02:00
doc doc/mailing-list-faq.texi: Fix typo in link anchor 2026-05-03 19:49:54 +02:00
ffbuild all: fix typos found by codespell 2025-08-03 13:48:47 +02:00
fftools fftools/ffmpeg_demux: Check metadata provided filename 2026-05-03 19:56:51 +02:00
libavcodec avcodec/wmv2dec: More Checks about reading skip bits 2026-05-03 19:56:53 +02:00
libavdevice avdevice/gdigrab: suppress int to pointer cast warning 2026-05-03 19:49:51 +02:00
libavfilter avfilter/af_lv2: call lilv_instance_activate before lilv_instance_run 2026-05-03 19:56:52 +02:00
libavformat avformat/dhav: Fix handling or slightly larger files 2026-05-03 19:56:52 +02:00
libavutil avutil/timecode: Check for integer overflow in av_timecode_init_from_components() 2026-05-03 19:56:52 +02:00
libswresample swresample/resample_template: add casts to avoid undefined overflows 2026-05-03 19:50:08 +02:00
libswscale swscale/output: fix integer overflows in chroma in yuv2rgba64_X_c_template() 2026-05-03 19:56:51 +02:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests avformat/mov: don't parse reserved ISOBMFF fields as if they were QT 2026-03-05 23:10:35 -03:00
tools forgejo: backport CI changes to release/8.0 2025-11-30 16:42:51 +01:00
.gitattributes gitattributes: End merge conflicts in Changelog 2025-03-17 15:26:10 +01:00
.gitignore forgejo/workflows: add initial rudimentary CI 2025-07-22 20:06:20 +02:00
.mailmap mailmap: add entry for myself 2025-08-08 21:51:15 +00:00
Changelog configure: require at least OpenSSL 1.1.1 (LTS) 2025-11-29 05:06:09 -05:00
configure configure: Recognize uname "Windows_NT" as using an .exe suffix 2026-02-03 20:56:26 +00:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 2009-06-05 09:51:31 +00:00
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1 all: fix whitespace/new-line issues 2025-08-03 13:48:47 +02:00
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
FUNDING.json Add FUNDING.json 2025-06-23 14:48:40 +02:00
INSTALL.md all: fix typos found by codespell 2025-08-03 13:48:47 +02:00
LICENSE.md Remove libpostproc 2025-05-07 15:35:47 +02:00
MAINTAINERS MAINTAINERS: add myself as hwcontext_d3d12va maintainer 2025-08-08 21:51:15 +00:00
Makefile Makefile: Split ALLFFLIBS 2025-05-26 20:33:10 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE Update for 8.0.1 2025-11-19 03:51:22 +01:00
RELEASE_NOTES RELEASE_NOTES: Based on the version from 5.1 2025-08-22 01:15:31 +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 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.