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Jun Zhao 042ff80562 doc/examples/qsv_decode: fix raw frame dump for chroma planes 
The output loop used sw_frame->width as the write size for all
planes. This is only correct for NV12 where the interleaved UV
plane happens to have the same byte width as the Y plane. For
other pixel formats (e.g. YUV420P where U/V planes are half
width, or P010 where samples are 2 bytes), the output would be
corrupted.

Use av_image_get_linesize() to compute the correct byte width
for each plane based on the actual pixel format.

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
2026-03-18 02:08:09 +00:00
.forgejo MAINTAINERS: add myself to maintained modules and update CODEOWNERS 2026-03-14 15:18:22 +00:00
compat compat: Fix .def file generation for ARM64EC builds on Windows 2025-12-19 10:01:16 +00:00
doc doc/examples/qsv_decode: fix raw frame dump for chroma planes 2026-03-18 02:08:09 +00:00
ffbuild configure: add detection of assembler support for SME2 2026-03-04 23:52:36 +02:00
fftools fftools/ffmpeg_demux: add options to override mastering display and content light level metadata 2026-03-15 17:52:05 -03:00
libavcodec avcodec/libvpxenc: fix sRGB colorspace for non-RGB pixel formats 2026-03-17 13:39:59 -07:00
libavdevice Bump versions for master after release/8.1 2026-03-08 02:31:23 +01:00
libavfilter avfilter/af_whisper: Add translate parameter 2026-03-15 06:53:19 +00:00
libavformat lavf/vvcdec: fix false-positive VVC detection of MP3 files 2026-03-16 16:21:12 +00:00
libavutil aarch64: Add Armv9.3-A GCS (Guarded Control Stack) support 2026-03-17 20:37:53 +00:00
libswresample Bump versions for master after release/8.1 2026-03-08 02:31:23 +01:00
libswscale swscale: fix possible lut leak in adapt_colors() 2026-03-17 15:56:40 +08:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests avcodec/bsf/extract_extradata: write correct length start codes for h26x 2026-03-15 19:20:06 -03:00
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 vulkan: support shader compression 2026-01-12 17:28:41 +01:00
.mailmap mailmap: add entry for myself 2025-08-08 21:51:15 +00:00
Changelog avformat/movenc: add support for LCEVC track muxing 2026-03-14 20:50:21 -03:00
configure configure: Add lcevc->cbs_lcevc dependency 2026-03-13 16:09:40 +00:00
CONTRIBUTING.md CONTRIBUTING.md: Add Forgejo 2026-02-22 04:39:22 +00:00
COPYING.GPLv2
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1 all: fix whitespace/new-line issues 2025-08-03 13:48:47 +02:00
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
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 to maintained modules and update CODEOWNERS 2026-03-14 15:18:22 +00:00
Makefile configure: add detection of assembler support for SME2 2026-03-04 23:52:36 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
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.