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erankor dc16c9dd90 qt-faststart - stco offset bug fix 
when the last offsets in the stco atom are close to 4GB, the addition of
the moov atom size can overflow, causing corruption near the end of the
mp4 file.
this patch upgrades all stco atoms to co64 when such an edge case is
detected. in order to accomplish this, the implementation was changed to
walk the atom tree, instead of searching for the strings 'stco'/'co64'.
this was required since when an stco atom is changed to co64, its size
changes, and the sizes of all containing atoms (moov, trak, etc.) have
to be updated as well.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 		2018-06-13 21:55:19 +02:00
compat compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
doc doc/devices: order alphabetically and add missing v4l2 outdev 2018-06-13 11:21:12 -08:00
ffbuild Merge commit '17b6c7efb471e8ff1b8a7271f6531ba1d52bf69c' 2017-11-12 01:02:02 -03:00
fftools ffmpeg: Fail if the user requested impossible subtitle encoding. 2018-06-09 21:34:27 +02:00
libavcodec avcodec/mpeg4videodec: Clear bits_per_raw_sample if it has originated from a previous instance 2018-06-13 21:55:19 +02:00
libavdevice avdevice/decklink_dec: capture timecode to metadata when requested 2018-06-13 00:15:06 +02:00
libavfilter libavfilter/dnn_interface.c: fix av_freep dnn_module. 2018-06-08 10:26:08 -03:00
libavformat avformat/movenc: fix recognization of cover image streams 2018-06-13 16:46:40 +02:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil pixdesc: Only check against valid entries when iterating over lists of enums 2018-06-12 16:10:31 +01:00
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 fate: add Dolby E test 2018-06-05 23:07:03 -03:00
tools qt-faststart - stco offset bug fix 2018-06-13 21:55:19 +02:00
.gitattributes
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.gitignore Remove the ffserver program 2018-01-06 18:31:37 +00:00
.travis.yml Merge commit '4809781586d1c956005f72946a2aab5915eab350' 2017-10-28 15:08:31 -03:00
CONTRIBUTING.md
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COPYING.GPLv2
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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 Adds TensorFlow backend for dnn inference module. 2018-06-05 10:16:50 -03:00
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 Revert "lavd: add new API for iterating input and output devices" 2018-03-31 23:26:31 +01:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE RELEASE: update for git after 3.4 branchpoint 2017-10-11 02:46:23 +02:00
configure configure: The eac3_core bitstream filter needs the ac3 parser. 2018-06-13 12:01:04 +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.