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Zhao Zhili 811f2f91da avformat/mov: discard data streams with all zero sample_delta Streams with all zero sample_delta in 'stts' have all zero dts. They have higher chance be chose by mov_find_next_sample(), which leads to seek again and again. For example, GoPro created a 'GoPro SOS' stream: Stream #0:4[0x5](eng): Data: none (fdsc / 0x63736466), 13 kb/s (default) Metadata: creation_time : 2022-06-21T08:49:19.000000Z handler_name : GoPro SOS With 'ffprobe -show_frames http://example.com/gopro.mp4', ffprobe blocks until all samples in 'GoPro SOS' stream are consumed first. Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>		2022-07-18 11:06:17 +08:00
compat	avfilter: add chromakey_cuda filter	2022-07-10 17:20:15 +02:00
doc	avfilter: add vsrc_ddagrab	2022-07-18 02:08:27 +02:00
ffbuild	…
fftools	fftools/ffmpeg: make debug_ts print raw filter output	2022-07-18 00:32:14 +02:00
libavcodec	avcodec/libjxlenc: avoid hard failure with unspecified primaries	2022-07-17 01:46:48 +02:00
libavdevice	avdevice/lavfi: pass forward video framerate	2022-07-18 00:32:57 +02:00
libavfilter	avfilter: add vsrc_ddagrab	2022-07-18 02:08:27 +02:00
libavformat	avformat/mov: discard data streams with all zero sample_delta	2022-07-18 11:06:17 +08:00
libavutil	avutil/hwcontext_d3d11va: add BGRA/RGBA10 formats support	2022-07-18 00:32:14 +02:00
libpostproc	Bump versions after 5.1 branch	2022-07-13 00:29:05 +02:00
libswresample	Bump versions after 5.1 branch	2022-07-13 00:29:05 +02:00
libswscale	Bump versions after 5.1 branch	2022-07-13 00:29:05 +02:00
presets	…
tests	avdevice/lavfi: output wrapped AVFrames	2022-07-18 00:32:55 +02:00
tools	tools/target_dec_fuzzer: adjust threshold for flic	2022-07-12 21:55:22 +02:00
.gitattributes	…
.gitignore	…
.mailmap	…
.travis.yml	…
CONTRIBUTING.md	…
COPYING.GPLv2	…
COPYING.GPLv3	…
COPYING.LGPLv2.1	…
COPYING.LGPLv3	…
CREDITS	…
Changelog	avfilter: add vsrc_ddagrab	2022-07-18 02:08:27 +02:00
INSTALL.md	…
LICENSE.md	…
MAINTAINERS	…
Makefile	…
README.md	…
RELEASE	RELEASE: update after 5.1 branch	2022-07-13 00:31:42 +02:00
configure	avfilter: add vsrc_ddagrab	2022-07-18 02:08:27 +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 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.