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Andreas Rheinhardt 7c95c7de4a avcodec/libx265: Don't copy A53 closed captions by default 
The SEI handling of libx265 is buggy and can easily lead
to memory corruption: It reuses certain buffers, but when
reusing them it presumes that it is enough for these buffers
to exist and does not check whether they are actually large
enough to hold what is intended to be stored in them.*

Our users are exposed to this because forwarding A53 CC data
is enabled by default. Change this to make it disabled
by default.

"Fixes" tickets #10411, #11052 and (presumably) #10906.

*: See https://trac.ffmpeg.org/ticket/9666#comment:1

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-06-16 12:30:59 +02:00
compat
doc avcodec: add external enc libvvenc for H266/VVC 2024-06-15 21:00:05 +08:00
ffbuild
fftools avcodec: add external enc libvvenc for H266/VVC 2024-06-15 21:00:05 +08:00
libavcodec avcodec/libx265: Don't copy A53 closed captions by default 2024-06-16 12:30:59 +02:00
libavdevice avdevice/xcbgrab: Check sscanf() return 2024-06-12 00:39:11 +02:00
libavfilter avfilter/vf_rotate: Check ff_draw_init2() return value 2024-06-12 00:39:14 +02:00
libavformat avformat/mxfdec: use the newly added channel ids for more exact mapping 2024-06-12 19:37:01 +02:00
libavutil avr32: remove explicit support 2024-06-14 21:28:10 +03:00
libpostproc
libswresample
libswscale swscale/x86/range_convert: reduce amount of xmm regs clobbered in luma functions 2024-06-15 21:02:06 -03:00
presets
tests fate/checkasm: run the sw_range_convert test 2024-06-15 21:02:06 -03:00
tools tools/decode_simple: Check avcodec_send_packet() for errors on flushing 2024-05-28 03:48:06 +02:00
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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.