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doc/filters: add showwavespic colorize example

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Signed-off-by: Lou Logan <lou@lrcd.com>
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Lou Logan 2015-12-29 10:41:20 -09:00
parent 3843e52cb4
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doc/filters.texi
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@ -14836,6 +14836,14 @@ in a 1024x800 picture using @command{ffmpeg}:
@example @example
ffmpeg -i audio.flac -lavfi showwavespic=split_channels=1:s=1024x800 waveform.png ffmpeg -i audio.flac -lavfi showwavespic=split_channels=1:s=1024x800 waveform.png
@end example @end example
@item
Colorize the waveform with colorchannelmixer. This example will make
the waveform a green color approximately RGB(66,217,150). Additional
channels will be shades of this color.
@example
ffmpeg -i audio.mp3 -filter_complex "showwavespic,colorchannelmixer=rr=66/255:gg=217/255:bb=150/255" waveform.png
@end example
@end itemize @end itemize
@section split, asplit @section split, asplit