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| author | Anton Khirnov <anton@khirnov.net> | 2012-05-30 13:59:30 +0200 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2012-06-12 21:38:59 +0200 |
| commit | d6251368772a170987387bdc508433c8fcf54cda (patch) | |
| tree | 9930e4822f037661607d6fa01ae5ebf907c92069 /doc | |
| parent | 4795362660a526a38a7a60f06826bce97a092b59 (diff) | |
| download | ffmpeg-streaming-d6251368772a170987387bdc508433c8fcf54cda.zip ffmpeg-streaming-d6251368772a170987387bdc508433c8fcf54cda.tar.gz | |
lavfi: add channelsplit audio filter.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/filters.texi | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 0179682..f17dad8 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -207,6 +207,31 @@ Maximum compensation in samples per second. @end table +@section channelsplit +Split each channel in input audio stream into a separate output stream. + +This filter accepts the following named parameters: +@table @option +@item channel_layout +Channel layout of the input stream. Default is "stereo". +@end table + +For example, assuming a stereo input MP3 file +@example +avconv -i in.mp3 -filter_complex channelsplit out.mkv +@end example +will create an output Matroska file with two audio streams, one containing only +the left channel and the other the right channel. + +To split a 5.1 WAV file into per-channel files +@example +avconv -i in.wav -filter_complex +'channelsplit=channel_layout=5.1[FL][FR][FC][LFE][SL][SR]' +-map '[FL]' front_left.wav -map '[FR]' front_right.wav -map '[FC]' +front_center.wav -map '[LFE]' lfe.wav -map '[SL]' side_left.wav -map '[SR]' +side_right.wav +@end example + @section resample Convert the audio sample format, sample rate and channel layout. This filter is not meant to be used directly, it is inserted automatically by libavfilter |
