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ffmpeg
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Andreas Rheinhardt 8a3329ffba avformat/segafilmenc: Don't store packet info in linked list 
Up until now, the Sega FILM muxer would store some information about
each packet in a linked list. When writing the trailer, the information
in said linked list would be used to write a table in the file header.
Each entry in said table is 16 bytes long, but each entry of the linked
list is 32 bytes long (assuming 64 bit pointer and no padding).
Therefore it makes sense to remove the linked list and write the array
entries directly into a dynamic buffer while writing the packet (this is
possible because the table entries don't depend on any information not
available when writing the packet (the offset is not relative to the
beginning of the file, but to the end of the table). This also
simplifies writing the array at the end (there is no need to traverse a
linked list).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 		2020-07-26 17:02:24 +02:00
compat compat/cuda/ptx2c: remove shell loop; fix BSD sed compat 2020-06-01 22:10:41 -05:00
doc libavcodec/libaomenc.c: Add command-line options for inter-coding tools 2020-07-24 19:10:10 -07:00
ffbuild ffbuild: Refine MIPS handling 2020-07-23 16:30:02 +02:00
fftools ffprobe: Allow unknown format private AVOptions 2020-07-02 19:24:56 +01:00
libavcodec libavcodec/libaomenc.c: Add command-line options for inter-coding tools 2020-07-24 19:10:10 -07:00
libavdevice avdevice/decklink_dec: export timecode with s12m side data 2020-07-15 05:47:14 +08:00
libavfilter avfilter/vf_xfade: add hblur transition 2020-07-21 23:29:55 +02:00
libavformat avformat/segafilmenc: Don't store packet info in linked list 2020-07-26 17:02:24 +02:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil: bump version after addition of MIPS cpu flags 2020-07-23 14:00:31 -03:00
libpostproc Bump minor versions after branching 4.3 2020-06-08 22:49:04 +02:00
libswresample Bump minor versions after branching 4.3 2020-06-08 22:49:04 +02:00
libswscale swscale/yuv2rgb: cosmetics 2020-07-25 10:20:42 +08:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests libavutil: Detect MMI and MSA flags for MIPS 2020-07-23 17:21:58 +02:00
tools dnn_backend_native_layer_mathunary: add atanh support 2020-07-06 12:45:14 +08:00
.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
.mailmap mailmap: add entry for myself 2020-07-13 11:24:04 +08:00
.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
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 CREDITS: redirect to Git log, remove current outdated content 2013-01-31 18:02:52 +01:00
Changelog avformat: add apm muxer 2020-07-21 11:36:14 +10:00
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: add myself and gpg fingerprint 2020-07-17 21:57:18 +02:00
Makefile Makefile: Delete more created files when running "make distclean". 2020-03-11 11:43:01 +01:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE RELEASE: We are after the 4.3 branch point, update for that 2020-06-10 00:20:24 +02:00
configure ffbuild: Refine MIPS handling 2020-07-23 16:30:02 +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.