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Karsten Otto 6cc6b619b9 aadec: add chapters and seeking 
read_packet reads content in chunks. Thus seek must be clamped to valid
chunk positions in the file, which in turn are relative to chapter start
positions.

So in read_header, scan for chapter headers once by skipping through the
content. Set stream time_base based on bitrate in bytes/s, for easy
timestamp to position conversion.

Then in read_seek, find the chapter containing the seek position, calculate
the nearest chunk position, and reinit the read_seek state accordingly.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 		2018-07-09 03:25:53 +02:00
compat
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doc avfilter/setpts: add FR shorthand for FRAME_RATE 2018-07-07 21:08:08 +05:30
ffbuild
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fftools ffmpeg: fix -stream_loop with multiple inputs 2018-07-02 11:58:08 +02:00
libavcodec libavcodec/mpegaudiodecheader.h : detect reserved mpeg id 2018-07-09 03:25:53 +02:00
libavdevice avdevice/v4l2enc: add video4linux2 name alias 2018-06-18 16:26:23 -08:00
libavfilter lavfi/minterpolate: fix blending calc issue. 2018-07-08 23:05:34 +08:00
libavformat aadec: add chapters and seeking 2018-07-09 03:25:53 +02:00
libavresample
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libavutil hwcontext_opencl: remove an unused variable 2018-06-29 05:23:49 +08:00
libpostproc Bump minor versions after release/4.0 branching 2018-04-16 12:35:12 +02:00
libswresample swresample/arm: rename labels to fix xcode build error 2018-04-28 18:08:52 +02:00
libswscale lsws/rgb2rgb_template: Do not compile unneeded shuffle functions on big-endian. 2018-06-10 03:22:59 +02:00
presets
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tests tests/fate/demux: Add test for d25c945247 2018-07-07 12:09:34 +02:00
tools tools/target_dec_fuzzer: set parser codec id to avoid assertion failure 2018-07-07 12:09:34 +02:00
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CONTRIBUTING.md
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COPYING.GPLv2 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 2009-06-05 09:51:31 +00:00
COPYING.GPLv3
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COPYING.LGPLv2.1
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COPYING.LGPLv3
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CREDITS
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Changelog lavc: implement an ATRAC9 decoder 2018-07-03 20:15:01 +01:00
INSTALL.md
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LICENSE.md
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MAINTAINERS MAINTAINERS: add myself to qsv section 2018-06-07 23:57:27 +01:00
Makefile
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README.md
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RELEASE
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configure configure: toolchain-tsan does not need -fPIE. 2018-07-06 00:41:59 +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.