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Nicolas George 32c59a115d lavfi: do not call ff_filter_frame() with activate.
avfilter_graph_request_oldest() does work that should be done by
either the filter or the application.

The principle of this function, calling ff_request_frame() from
outside the filter was always shaky. This version is less elegant
since it requires making special cases for each filter, but it
is more robust since it no longer calls ff_request_frame()
directly without notifying the filter.

Eventually, avfilter_graph_request_oldest() will be deprecated
for a function to just run the graph.
2017-01-12 14:06:16 +01:00
compat compat/atomics: rename header guards 2016-12-02 20:08:54 -03:00
doc lavfi/buffersink: add accessors for the stream properties. 2017-01-12 14:06:16 +01:00
libavcodec avcodec/mathops: add missing header for ff_reverse 2017-01-11 21:18:03 -03:00
libavdevice lavd/lavfi: use buffersink accessors. 2017-01-12 14:06:16 +01:00
libavfilter lavfi: do not call ff_filter_frame() with activate. 2017-01-12 14:06:16 +01:00
libavformat lavf/hlsenc: fix typo in last commit. 2017-01-12 14:01:22 +01:00
libavresample Bump minor versions after 3.2 branchpoint to seperate release 2016-10-26 20:52:42 +02:00
libavutil x86inc: Avoid using eax/rax for storing the stack pointer 2017-01-09 16:00:29 +01:00
libpostproc Bump minor versions after 3.2 branchpoint to seperate release 2016-10-26 20:52:42 +02:00
libswresample swresample/resample: remove swri_resample function 2016-12-14 06:48:34 +07:00
libswscale swscale/swscale: Fix dereference of stride array before null check 2016-12-23 21:47:47 +01:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests fate/psd : add test for 256 color 2017-01-11 22:25:21 +01:00
tools tools/zmqsend: Do not truncate fgetc() return 2016-12-24 14:46:25 +01:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1' 2016-06-26 15:43:05 +02:00
.travis.yml Merge commit 'eda183287489b2c705843aa373a19c4e46fb2fec' 2015-11-22 17:12:24 +00:00
arch.mak mips: rename mipsdspr1 to mipsdsp 2015-12-04 02:35:42 +01:00
Changelog avcodec: add Newtek SpeedHQ decoder 2017-01-11 16:02:10 +01:00
cmdutils_common_opts.h cmdutils: add show_demuxers and show_muxers 2016-11-08 01:56:31 +01:00
cmdutils_opencl.c all: use FFDIFFSIGN to resolve possible undefined behavior in comparators 2015-11-03 16:28:30 -05:00
cmdutils.c cmdutils: remove duplicate windows.h include 2016-11-16 15:06:16 +01:00
cmdutils.h cmdutils: add show_demuxers and show_muxers 2016-11-08 01:56:31 +01:00
common.mak Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1' 2016-06-27 19:39:46 +02:00
configure configure: Fix standalone compilation of the ljpeg encoder. 2017-01-05 11:44:04 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
ffmpeg_cuvid.c doc: fix spelling errors 2016-10-21 23:58:47 +02:00
ffmpeg_dxva2.c Merge commit '18c506e9e6e8df8b1d496d093077b8240ea68c28' 2016-06-26 15:34:01 +02:00
ffmpeg_filter.c ffmpeg: use buffersink accessors. 2017-01-12 14:06:16 +01:00
ffmpeg_opt.c ffmpeg: Add an option "qsv_device" to choose proper node for QSV child device (vaapi or dxva2) 2017-01-11 20:21:09 +00:00
ffmpeg_qsv.c ffmpeg: Add an option "qsv_device" to choose proper node for QSV child device (vaapi or dxva2) 2017-01-11 20:21:09 +00:00
ffmpeg_vaapi.c ffmpeg_vaapi: fix choice of decoder_format 2016-09-29 01:23:52 +02:00
ffmpeg_vdpau.c Merge commit 'f72db3f2f3a8c83a4f5dede8fa03434b2bf676c6' 2016-06-26 15:29:39 +02:00
ffmpeg_videotoolbox.c ffmpeg/videotoolbox: protect UTGetOSTypeFromString on both VDA and VT 2015-10-15 10:22:31 +02:00
ffmpeg.c ffmpeg: use buffersink accessors. 2017-01-12 14:06:16 +01:00
ffmpeg.h ffmpeg: Add an option "qsv_device" to choose proper node for QSV child device (vaapi or dxva2) 2017-01-11 20:21:09 +00:00
ffplay.c ffplay: use buffersink accessors. 2017-01-12 14:06:16 +01:00
ffprobe.c lavc: Add spherical packet side data API 2016-12-07 14:40:06 -05:00
ffserver_config.c ffserver_config: Check for failure to allocate FFServerIPAddressACL 2016-12-22 19:23:08 +01:00
ffserver_config.h ffsrever: Make the status page bitexact if any stream is bitexact 2016-11-29 19:26:26 +01:00
ffserver.c ffserver: local OOB write with custom program name 2017-01-08 03:50:56 +01:00
INSTALL.md INSTALL: add markdown syntax 2014-05-28 22:38:38 +02:00
library.mak Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1' 2016-06-27 19:39:46 +02:00
LICENSE.md lavfi/f_ebur128: relicense to LGPL 2016-11-27 20:46:20 +01:00
MAINTAINERS MAINTAINERS: update 2016-12-27 18:24:31 +01:00
Makefile Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1' 2016-06-26 15:43:05 +02:00
README.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
RELEASE RELEASE: Update for past 3.2 branch 2016-10-26 20:52:43 +02:00
version.sh version.sh: Fix spurious rebuilds. 2016-03-10 09:53:10 +01:00

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.
  • ffserver is a multimedia streaming server for live broadcasts.
  • 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.