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Vittorio Giovara 918273aa3e mov: Prioritize aspect ratio values found in pasp atom
From the ISO/IEC specification for MP4:
  The pixel aspect ratio and clean aperture of the video may be specified
  using the ‘pasp’ and ‘clap’ sample entry boxes, respectively. These are
  both optional; if present, they over-ride the declarations (if any) in
  structures specific to the video codec, which structures should be
  examined if these boxes are absent. For maximum compatibility, these
  boxes should follow, not precede, any boxes defined in or required by
  derived specifications.

Fixes trac/#7277.
2021-04-15 16:21:58 +02:00
compat atomics: Fix the win32 atomic_exchange function 2021-04-04 11:06:08 +03:00
doc doc/muxers: add entries for raw muxers 2021-04-11 12:09:16 +05:30
ffbuild ffbuild/common: Make deletion of templates possible 2021-02-07 09:45:04 +01:00
fftools ffprobe: only print exported private decoder options 2021-04-14 20:05:16 -03:00
libavcodec avcodec/mpeg4videodec: update exported AVOptions in the user-facing context 2021-04-14 20:08:09 -03:00
libavdevice libavdevice/gdigrab: fix capture of windows with non-ASCII titles 2021-04-13 19:34:33 +03:00
libavfilter lavfi/qsvvpp: support async depth 2021-04-11 23:18:20 +08:00
libavformat mov: Prioritize aspect ratio values found in pasp atom 2021-04-15 16:21:58 +02:00
libavresample
libavutil avutil/frame: Return 0 on success in av_frame_ref() 2021-04-05 18:36:51 +02:00
libpostproc Bump minor versions after release branch 2021-03-20 01:02:11 +01:00
libswresample libswresample/audioconvert: Fix undefined NULL + 0 2021-04-01 14:15:20 +02:00
libswscale libswscale/x86/yuv2yuvX: Removes unrolling for mmx and mmxext 2021-04-01 20:47:52 +02:00
presets
tests ffprobe: only print exported private decoder options 2021-04-14 20:05:16 -03:00
tools tools/target_dem_fuzzer: Fix packet leak 2021-04-01 10:10:21 +02:00
.gitattributes
.gitignore
.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.travis.yml
Changelog Changelog: Add new <next> line after 4.4 2021-04-09 06:30:31 +02:00
configure configure: select child muxers for rtp_mpegts 2021-03-21 15:50:23 +05:30
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: add myself as adpcm maintainer 2021-03-25 12:51:10 +10:00
Makefile avcodec: move core AVCodecContext functions from util.c to a new file 2021-03-19 15:35:35 -03:00
README.md
RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00

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 a mean to alter decoded Audio and Video through chain of 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.