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James Almer 4e2bef6a82 avcodec/cbs_av1: keep separate reference frame state for reading and writing 
In scearios where a Temporal Unit is written right after reading it using the same
CBS context (av1_metadata, av1_frame_merge, etc), the reference frame state used
by the writer must not be the state that's the result of the reader having already
parsed the current frame in question.

This fixes writing Switch frames, and frames using short ref signaling.

Signed-off-by: James Almer <jamrial@gmail.com>
2019-11-18 21:30:05 -03:00
compat compat/cuda: Change inclusion guards 2019-08-05 12:07:09 +02:00
doc doc/filters: improve libvmaf section 2019-11-18 19:32:07 +05:30
ffbuild build: add support for building CUDA files with clang 2019-08-04 19:08:08 +02:00
fftools fftools/ffmpeg_opt: Fix mixed declarations and code 2019-11-06 20:38:03 +01:00
libavcodec avcodec/cbs_av1: keep separate reference frame state for reading and writing 2019-11-18 21:30:05 -03:00
libavdevice avdevice/decklink: add option to drop frames till timecode is seen 2019-11-18 10:01:03 +05:30
libavfilter avfilter/vf_bm3d: improve threshold scaling with different block_size and depth 2019-11-19 00:12:47 +01:00
libavformat avformat/flacdec: Remove useless packet 2019-11-17 23:44:17 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil/eval: add function to track variable use 2019-11-17 11:07:05 +05:30
libpostproc Bump minor versions again on master to keep 4.2 versions separate from master 2019-07-21 18:36:31 +02:00
libswresample swresample/audioconvert: fix invalid left shift for 64bit sample format 2019-09-26 16:22:47 +02:00
libswscale swscale/swscale_unscaled: fix gbrap10be md5 different on big endian system 2019-11-01 14:43:16 +01:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests tests/ref/vsynth: add missing reference files, fix build 2019-11-13 23:34:56 +01:00
tools tools/target_dec_fuzzer: Adjust threshold for smacker 2019-11-09 15:23:06 +01:00
.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 '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
Changelog avformat: add an AV1 Annex B demuxer 2019-11-12 22:21:51 -03:00
configure configure: Add fft dependency for showspatial filter. 2019-11-17 23:29:23 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
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INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md LICENSE: Add missing libraries that need --enable-version3. 2019-08-12 02:25:39 +02:00
MAINTAINERS MAINTAINERS: add myself to OMX 2019-08-23 17:07:05 -07:00
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.