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Andreas Rheinhardt 43a188847c av1/h264_metadata: Don't reinitialize data 
If the relevant elements (the color description elements for AV1 and the
VUI elements in general for H.264 (since 1156b507)) are absent, then their
correct values (usually meaning unknown) have already been inferred by
the reading process, so that it is unnecessary to initialize them again
in the av1/h264_metadata filters even when they were initially absent.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2019-07-28 18:23:07 +01:00
compat compat/cuda/ptx2c: don't drop final newline 2019-05-24 19:23:39 +02:00
doc avfilter/af_dynaudnorm: add more descriptive aliases for options 2019-07-24 15:20:47 +01:00
ffbuild Merge commit '7e5bde93a1' 2019-03-10 19:31:13 -03:00
fftools ffmpeg_opt: Respect default disposition when select audio/video 2019-07-03 10:33:44 +08:00
libavcodec av1/h264_metadata: Don't reinitialize data 2019-07-28 18:23:07 +01:00
libavdevice Bump minor versions again on master to keep 4.2 versions separate from master 2019-07-21 18:36:31 +02:00
libavfilter libavfilter/dnn: move dnn files from libavfilter to libavfilter/dnn 2019-07-26 13:07:43 -03:00
libavformat avcodec/adpcm: add support for 5.1 ADPCM MS 2019-07-26 11:57:06 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil Bump minor versions again on master to keep 4.2 versions separate from master 2019-07-21 18:36:31 +02:00
libpostproc Bump minor versions again on master to keep 4.2 versions separate from master 2019-07-21 18:36:31 +02:00
libswresample Bump minor versions again on master to keep 4.2 versions separate from master 2019-07-21 18:36:31 +02:00
libswscale Bump minor versions again on master to keep 4.2 versions separate from master 2019-07-21 18:36:31 +02:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests avcodec/adxenc: add EOF header 2019-07-25 15:13:09 +01:00
tools tools/target_dec_fuzzer: Free parser in case of avcodec_open2() failure 2019-07-21 12:33:35 +02:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore tools/python: add script to convert TensorFlow model (.pb) to native model (.model) 2019-07-01 10:23:47 -03:00
.travis.yml Merge commit '899ee03088' 2019-03-14 15:53:16 -03:00
Changelog Changelog: Add 4.2 cut marker 2019-07-21 18:25:21 +02:00
configure avutil/mips: optimize UNPCK&SAD macros with MSA2.0 instruction. 2019-07-10 12:54:57 +02:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md LICENSE: Clarify --enable-nonfree. 2019-05-10 01:18:58 +02:00
MAINTAINERS MAINTAINERS: remove myself as mailing list maintainer 2019-03-21 11:34:13 -08:00
Makefile tools: Add fuzzer for demuxers 2019-05-31 22:44:30 +02:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE RELEASE: Update value for post 4.2 branch 2019-07-21 18:37:32 +02:00

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 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.