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James Almer 58cb0cab5e avformat/mov: ensure pasp box derived SAR is used if present
It's meant to override any codec specific (but still container level)
information, but its position is not guaranteed, so apply the values after the
entire trak structure has been parsed.
Also, replace the ugly roundabout int -> double -> int method to set SAR from
existing dimensions while at it.

Signed-off-by: James Almer <jamrial@gmail.com>
2024-07-11 10:22:47 -03:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc doc/examples/vaapi_encode: Try to check fwrite() for failure 2024-07-10 18:10:07 +02:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffmpeg_mux_init: default to input timebase for streamcopy 2024-07-09 11:14:08 +02:00
libavcodec avcodec/vvc: Use static const for function table 2024-07-11 20:26:47 +08:00
libavdevice avdevice/v4l2: add limited support for multiplanar API 2024-07-04 11:09:53 +02:00
libavfilter avfilter/vf_crop: prevent integer overflows when calculating SAR 2024-07-11 10:22:47 -03:00
libavformat avformat/mov: ensure pasp box derived SAR is used if present 2024-07-11 10:22:47 -03:00
libavutil avutil/executor: Fix stack overflow due to recursive call 2024-07-11 20:26:23 +08:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample swresample/swresample: Rectify invalid function in the documentation 2024-07-02 21:57:17 +02:00
libswscale swscale: prevent undefined behaviour in the PUTRGBA macro 2024-07-10 18:10:10 +02:00
presets
tests avformat/movenc: support writing cropping values 2024-07-11 10:22:47 -03:00
tools tools/coverity: Phase 1 study of anti-halicogenic for coverity av_rescale() 2024-07-07 23:36:27 +02:00
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CREDITS
Changelog Changelog: add D3D12VA HEVC encoder changelog 2024-07-02 14:15:12 +02:00
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: add myself as d3d12va_encode maintainer 2024-07-10 18:10:08 +02:00
Makefile riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
README.md
RELEASE RELEASE: update after 7.0 branch 2024-04-02 13:02:39 -03:00
configure x86/intreadwrite: use intrinsics instead of inline asm for AV_COPY128 2024-07-10 13:25:44 -03:00

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.