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Ted Meyer 53cd2c9f2a avformat/mov: Check read size for opus extradata 
in mov_read_dops, `size` bytes is allocated for
`st->codecpar->extradata`, but ff_alloc_extradata doesn't memset, so the
contents of that buffer are just old heap data. If `avio_read` reads
fewer bytes than were requested, uninitialized data can still be left in
the extradata buffer, which is operated on by AV_WL16A and AV_WL32A.

I think the best solution here is to just check the read size and ensure
it's filling the extradata buffer in it's entirety, or erroring out if
there isn't enough data left.
2026-04-28 23:46:56 +00:00
.forgejo tests/fate/libavutil: add FATE test for timestamp 2026-04-28 16:17:47 +00:00
compat avfilter/scale_cuda: fix color bleeding in lanczos scaling 2026-04-04 11:31:16 +00:00
doc doc: add narrow variable scope in loops to style examples 2026-04-22 13:29:18 +00:00
ffbuild ffbuild/common: remove DBG=1 to preprocess external asm 2026-04-03 16:15:33 +02:00
fftools fftools: replace fall-through comments 2026-04-28 12:29:37 +00:00
libavcodec doc: remove unclear description 2026-04-28 14:31:19 +02:00
libavdevice avdevice/v4l2: fix mmap_free() skipping first buffer 2026-04-28 13:45:20 +00:00
libavfilter libavfilter/vf_amf_common: free the frame allocated by av_frame_alloc on error 2026-04-28 14:57:34 +00:00
libavformat avformat/mov: Check read size for opus extradata 2026-04-28 23:46:56 +00:00
libavutil avutil/tests/.gitignore: Add recently added test tools 2026-04-28 20:08:35 +02:00
libswresample swresample/x86/{audio_convert,rematrix}: Remove remnants of MMX 2026-04-13 01:16:46 +02:00
libswscale swscale/yuv2rgb: add fall-through annotations 2026-04-28 12:29:37 +00:00
presets
tests tests/fate/libavutil: add FATE test for timestamp 2026-04-28 16:17:47 +00:00
tools fuzzer: improve documentation 2026-03-14 21:36:58 +00:00
.gitattributes gitattributes: End merge conflicts in Changelog 2025-03-17 15:26:10 +01:00
.gitignore swscale/aarch64: add NEON sws_ops backend 2026-03-30 11:38:35 +00:00
.mailmap mailmap: add entry for myself 2025-08-08 21:51:15 +00:00
Changelog avfilter/vf_frc_amf: Add AMF Frame Rate Converter filter 2026-04-21 16:47:05 +00:00
configure configure: add implicit-fallthrough warning flags 2026-04-28 12:29:37 +00:00
CONTRIBUTING.md CONTRIBUTING.md: add blank line after top heading 2026-04-20 12:32:50 +00:00
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 INSTALL.md: add title heading and normalize section levels 2026-04-20 12:32:50 +00:00
LICENSE.md Remove libpostproc 2025-05-07 15:35:47 +02:00
MAINTAINERS MAINTAINERS: add myself for libavfilter 2026-04-25 19:18:28 +02:00
Makefile configure: add detection of assembler support for SME2 2026-03-04 23:52:36 +02:00
README.md README.md: use consistent ATX heading style 2026-04-20 12:32:50 +00:00
RELEASE RELEASE: update to 8.0 2025-08-14 08:42:29 -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.