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Leo Izen 77facc9a55
avcodec/jpegxl_parser: fix reading lz77-pair as initial entropy symbol 
The JPEG XL parser has an entropy decoder inside, which supports LZ77
length-distance pairs. If the first symbol from the entropy stream is an
LZ77 pair, the bitstream is invalid, so we should abort immediately rather
than attempt to read it anyway (which would read from the uninitialized
starting window).

Reported-by: Kacper Michajłow <kasper93@gmail.com>
Found-by: ossfuzz
Fixes: 368725676/clusterfuzz-testcase-minimized-fuzzer_protocol_file-6022251122589696-cut
Fixes: 42537758/clusterfuzz-testcase-minimized-fuzzer_protocol_file-5818969469026304-cut
Signed-off-by: Leo Izen <leo.izen@gmail.com>
2024-11-13 10:38:27 -05:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc Update for 7.0.2 2024-08-02 22:17:43 +02:00
ffbuild makefile: Clean up missed object files with "make clean" 2024-03-10 23:45:51 +02:00
fftools fftools/ffplay: fix crash when vk renderer is null 2024-11-06 16:51:24 +08:00
libavcodec avcodec/jpegxl_parser: fix reading lz77-pair as initial entropy symbol 2024-11-13 10:38:27 -05:00
libavdevice configure: improve check for POSIX ioctl 2024-09-01 20:17:55 -04:00
libavfilter avfilter/vf_xfade: Check ff_inlink_consume_frame() for failure 2024-07-25 20:36:18 +02:00
libavformat avformat/mov_chan: add extra checks to channel description count 2024-09-17 15:42:37 -03:00
libavutil avutil/wchar_filename: re-introduce explicit cast of void* to char* 2024-10-27 09:58:36 +01:00
libpostproc Bump prior release/7.0 branch 2024-03-27 01:04:53 +01:00
libswresample Bump prior release/7.0 branch 2024-03-27 01:04:53 +01:00
libswscale swscale: [loongarch] Fix checkasm-sw_yuv2rgb failure. 2024-08-02 22:14:45 +02:00
presets
tests avformat/movenc: fix channel count and samplerate fields for IAMF tracks 2024-07-18 23:38:04 -03:00
tools tools/coverity: Phase 1 study of anti-halicogenic for coverity av_rescale() 2024-07-25 20:34:22 +02:00
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Changelog Update for 7.0.2 2024-08-02 22:17:43 +02:00
configure configure: improve check for POSIX ioctl 2024-09-01 20:17:55 -04:00
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MAINTAINERS MAINTAINERS: Add Timo Rothenpieler to server admins 2024-07-25 20:34:15 +02:00
Makefile tools: Add target_sws_fuzzer.c 2024-02-21 18:24:17 +01:00
README.md
RELEASE Update for 7.0.2 2024-08-02 22:17:43 +02:00
RELEASE_NOTES RELEASE_NOTES: Based on the version from 5.1 2024-04-05 00:31:10 +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.