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Frank Plowman 4771d217bd lavc/vvc: Prevent OOB write to slice_top_left_ctu_x in PPS CBS 
Prior to the fix, in the case of a tile containing multiple slices
(pps_num_exp_slices_in_tile != 0) the number of slices was temporarily
allowed to exceed pps_num_slices_in_pic_minus1+1 and therefore
VVC_MAX_SLICES.  The number of slices was later verified, but while the
current slice index was higher than expected it was used to write to a
array of size VVC_MAX_SLICES, leading to an OOB write.

To rectify this, the patch adds some checks at an earlier stage, to
ensure that the slice index i + j at no point exceeds
pps_num_slices_in_pic_minus1.

Fixes #YWH-PGM40646-30

(cherry picked from commit 72a38c12e5)
2026-01-02 19:23:37 +00:00
.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/filters: add section for VideoToolbox filter 2025-11-23 13:59:09 +00:00
ffbuild all: fix typos found by codespell 2025-08-03 13:48:47 +02:00
fftools fftools/ffmpeg: fix gracefully shutdown 2025-09-22 22:46:25 +02:00
libavcodec lavc/vvc: Prevent OOB write to slice_top_left_ctu_x in PPS CBS 2026-01-02 19:23:37 +00:00
libavdevice avdevice/lavfi: stop setting deprecated buffersink options 2025-11-13 21:05:12 -03:00
libavfilter avfilter/vf_feedback: fix feedback block 2025-12-18 22:26:04 +00:00
libavformat avformat/img2dec: reject input images too big to fit into a single packet 2026-01-01 19:52:19 +00:00
libavutil avutil/hwcontext_d3d12va: fix buf size when call av_buffer_create 2025-11-26 09:59:43 +00:00
libswresample Bump versions for release/8.0 2025-08-09 17:30:39 +02:00
libswscale swscale/output: Fix unsigned cast position in yuv2* 2025-11-19 02:04:59 +01:00
presets
tests tests/fate/filter-video: add two feedback tests 2025-12-18 22:26:04 +00:00
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: Lower libdvdnav and libdvdread minimum versions for EL9 2025-12-10 23:19:17 +00:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 all: fix whitespace/new-line issues 2025-08-03 13:48:47 +02:00
COPYING.LGPLv3
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.