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Derek Buitenhuis e1e981c65e mov: Compare frag times in correct time base when seeking a stream without a corresponding sidx 
Some muxers, such as GPAC, create files with only one sidx, but two streams
muxed into the same fragments pointed to by this sidx.

Prevously, in such a case, when we seeked in such files, we fell back
to, for example, using the sidx associated with the video stream, to
seek the audio stream, leaving the seekhead in the wrong place.

We can still do this, but we need to take care to compare timestamps
in the same time base.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 		2022-08-19 17:02:55 +01:00
compat compat: add msvc windres wrapper 2022-08-13 14:42:52 +02:00
doc doc: fix binary values of SI prefixes 2022-08-18 17:10:42 +02:00
ffbuild ffbuild/common: Fix CPPFLAGS applied for compiling C++ files 2022-05-24 21:30:52 +02:00
fftools ffprobe: restore reporting error code for failed inputs 2022-08-17 16:46:05 +05:30
libavcodec avcodec/mpegvideo_dec: Don't sync AVCodecContext fields manually 2022-08-18 20:20:50 +02:00
libavdevice configure: always enable gnu_windres if available 2022-08-13 14:42:36 +02:00
libavfilter avfilter/vsrc_ddagrab: add options for more control over output format fallback 2022-08-13 15:22:14 +02:00
libavformat mov: Compare frag times in correct time base when seeking a stream without a corresponding sidx 2022-08-19 17:02:55 +01:00
libavutil lavu/tx: optimize and simplify inverse MDCTs 2022-08-16 01:22:38 +02:00
libpostproc configure: always enable gnu_windres if available 2022-08-13 14:42:36 +02:00
libswresample configure: always enable gnu_windres if available 2022-08-13 14:42:36 +02:00
libswscale swscale/x86/yuv2yuvX: Remove unused ff_yuv2yuvX_mmx() 2022-08-19 12:01:34 +02:00
presets
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tests avcodec/h263dec: Remove redundant code to set cur_pic_ptr 2022-08-18 16:53:41 +02:00
tools tools: Make sure to create the tools directory before building decode_simple.o 2022-08-17 00:00:50 +03:00
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Changelog lavc/vaapi_encode: enable 8bit 4:4:4 encoding for HEVC and VP9 2022-08-09 09:22:49 -07:00
INSTALL.md
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LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: Add ED25519 key for signing my commits in the future 2022-08-09 21:57:31 +02:00
Makefile Makefile: Prompt for reconfigure on lavc/hwaccels.h modification 2022-07-01 00:34:38 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +02:00
configure compat: add msvc windres wrapper 2022-08-13 14:42:52 +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.