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Frank Plowman 49c3918c1a lavc/vvc: Validate temporal MVP references 
Per VVCv3 p. 157, the collocated reference picture used in temporal
motion vector prediction must have RprConstraintsActiveFlag equal to
zero and the same CTU size as the current picture.  Add these checks,
fixing crashes decoding some fuzzed bitstreams.

Additionally, only set up the collocated reference picture if it is
actually going to be used (i.e. if ph_temporal_mvp_enabled_flag is 1),
else legal RPR bitstreams will fail the new checks.

Co-authored-by: Nuo Mi <nuomi2021@gmail.com>
Signed-off-by: Frank Plowman <post@frankplowman.com>
 		2024-05-27 20:24:21 +08:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc avutil/channel_layout: add a helper function to get the ambisonic order of a layout 2024-05-23 12:07:19 -03:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffmpeg_filter: Fix leak on error 2024-05-20 14:15:23 +02:00
libavcodec lavc/vvc: Validate temporal MVP references 2024-05-27 20:24:21 +08:00
libavdevice lavd/v4l2: Use proper field type for second parameter of ioctl() with BSD's 2024-05-08 21:33:32 +02:00
libavfilter avfilter/af_atempo: Fix indentation 2024-05-23 10:45:55 +02:00
libavformat avformat/async,cache: Use more unique context names 2024-05-25 13:52:19 +02:00
libavutil avutil/channel_layout: add a helper function to get the ambisonic order of a layout 2024-05-23 12:07:19 -03:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswscale swscale/riscv: explicitly require Zbb for MIN 2024-05-10 18:59:06 +03:00
presets
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tests tests/checkasm/vvc_alf: Don't use declare_func_emms 2024-05-25 14:21:54 +02:00
tools tools/target_enc_fuzzer: Only read pix_fmts if its set 2024-05-09 16:17:39 +02:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore
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CONTRIBUTING.md
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COPYING.GPLv2
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Changelog Changelog: add DVB compatible information for VVC decoder 2024-05-21 20:20:25 +08:00
INSTALL.md
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MAINTAINERS MAINTAINERS: add myself as *BSD maintainer 2024-05-13 03:40:16 +02:00
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README.md
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RELEASE RELEASE: update after 7.0 branch 2024-04-02 13:02:39 -03:00
configure configure: enable ffnvcodec, nvenc, nvdec for FreeBSD 2024-05-26 19:25:51 -04:00

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.