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bnnm 19802d170a avcodec/wmadec: fix WMA gapless playback 
Fixes trac issue #7473.

Removes encoder delay (skip samples) and writes remaining frame samples after EOF to get correct sample count.

Output is now accurate vs players that use Microsoft's codecs (Windows Media Format Runtime).

Tested vs encode>decode WMAv2 with MS's codecs and most sample rate/bit rate/channel/mode combinations in ASF/XWMA.
WMAv1 appears to use the same delay, from FFmpeg samples.

Signed-off-by: bnnm <bananaman255@gmail.com>
 		2021-09-12 22:23:35 +02:00
compat compat/cuda: add __expf() implementation 2021-08-14 15:06:47 +02:00
doc avfilter/vf_xfade: add zoomin transition 2021-09-12 15:01:48 +02:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools ffmpeg_hw: make hardware selection for filters more user friendly 2021-09-12 13:33:50 -03:00
libavcodec avcodec/wmadec: fix WMA gapless playback 2021-09-12 22:23:35 +02:00
libavdevice avdevice/decklink: support for more duplex mode for Decklink 8K Pro 2021-08-16 10:00:39 +08:00
libavfilter avfilter/vf_extractplanes: fix regression 2021-09-12 17:06:21 +02:00
libavformat avformat/dv: always set audio packet duration 2021-09-12 22:23:35 +02:00
libavutil libavutil/hwcontext_d3d11va: adding more texture information to the D3D11 hwcontext API 2021-09-08 17:48:02 -03:00
libpostproc postproc/postprocess: Remove legacy cruft 2021-07-29 22:02:06 +02:00
libswresample (postproc|swresample)/version: Don't include libavutil/avutil.h 2021-07-29 22:02:05 +02:00
libswscale libswscale/swscale: initialize all dst plane pointers in sws_receive_slice() 2021-09-07 09:44:58 -03:00
presets
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tests avcodec/wmadec: fix WMA gapless playback 2021-09-12 22:23:35 +02:00
tools tools/dvd2concat: use option keyword 2021-08-22 11:44:17 +02:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.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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CREDITS
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Changelog avfilter: add audio psychoacoustic clipper 2021-09-11 16:19:40 +02:00
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 avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
Makefile FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00
configure avfilter/af_asoftclip: rewrite oversampling 2021-09-12 12:55:50 +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.