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Linshizhi
ffmpeg.wasm-core
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72d2e943
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72d2e943
authored
Mar 05, 2013
by
Clément Bœsch
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doc/showspectrum: add some examples.
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doc/filters.texi
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72d2e943
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@@ -6601,6 +6601,23 @@ Default value is @code{1}.
The usage is very similar to the showwaves filter; see the examples in that
section.
@subsection Examples
@itemize
@item
Large window with logarithmic color scaling:
@example
showspectrum=s=1280x480:scale=log
@end example
@item
Complete example for a colored and sliding spectrum per channel using @command{ffplay}:
@example
ffplay -f lavfi 'amovie=input.mp3, asplit [a][out1];
[a] showspectrum=mode=separate:color=intensity:slide=1:scale=cbrt [out0]'
@end example
@end itemize
@section showwaves
Convert input audio to a video output, representing the samples waves.
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