On 8/10/15, Lou Logan <l...@lrcd.com> wrote:
> On Mon, 10 Aug 2015 15:51:24 +0200, Paul B Mahol wrote:
>
> [...]
>
>> +@section showfreqs
>> +
>> +Convert input audio to video output, representing the audio power
>> spectrum.
>
> You can remove that comma.
>
>> +Audio amplitude is on Y-axis while frequencies are on X-axis.
>
> Audio amplitude is on Y-axis while frequency is on X-axis.
>
>> +The filter accepts the following options:
>> +
>> +@table @option
>> +@item size, s
>> +Specify size of video.
>
> For the syntax of this option, check the @ref{video size syntax,,"Video
> size" section in the ffmpeg-utils manual,ffmpeg-utils}. Default is
> @code{1024x512}.
>
>> +@item mode
>> +Set display mode.
>> +
>> +It accepts the following values:
>> +@table @samp
>> +@item line
>> +@item bar
>> +@item dot
>> +
>> +Specify how each frequency bin will be represented.
>
> The above line seems to be misplaced.
>
>> +@end table
>
> Default is @code{bar}.
>
>> +@item ascale
>> +Set amplitude scale.
>> +
>> +It accepts the following values:
>> +@table @samp
>> +@item lin
>> +Linear scale.
>> +
>> +@item sqrt
>> +Square root scale.
>> +
>> +@item cbrt
>> +Cubic root scale.
>> +
>> +@item log
>> +Logarithmic scale.
>> +@end table
>
> Default is @code{log}.
>
>> +@item fscale
>> +Set frequency scale.
>> +
>> +It accepts the following values:
>> +@table @samp
>> +@item lin
>> +Linear scale.
>> +
>> +@item log
>> +Logarithmic scale.
>> +@end table
>
> Default is @code{linear}.
>
>> +@item win_size
>> +Set window size.
>> +
>> +It accepts the following values:
>> +@table @samp
>> +@item w16
>> +@item w32
>> +@item w64
>> +@item w128
>> +@item w256
>> +@item w512
>> +@item w1024
>> +@item w2048
>> +@item w4096
>> +@item w8192
>> +@item w16384
>> +@item w32768
>> +@item w65536
>> +@end table
>
> Default is @code{w2048}.
>
>> +@item win_func
>> +Set windowing function.
>> +
>> +It accepts the following values:
>> +@table @samp
>> +@item rect
>> +@item bartlett
>> +@item hanning
>> +@item hamming
>> +@item blackman
>> +@item welch
>> +@item flattop
>> +@item bharris
>> +@item bnuttall
>> +@item bhann
>> +@item sine
>> +@item nuttall
>> +@end table
>
> Default is @code{hanning}.
>
>> +@item overlap
>> +Set window overlap. In range @code{[0, 1]}. Default is 1, which means
>> optimal overlap
>> +for selected window function will be picked.
>> +
>> +@item averaging
>> +Set time averaging. Setting this to 0 will display current maximal peaks.
>
> Default is 1.
>
>> +@item color
>> +Specify list of colors separated by space or by '|' which will be used to
>> draw channel
>> +frequencies. Unrecognized or missing colors will be replaced by white.
>> +@end table
>
> Can you list the acceptable colors? Would it be too annoying to allow
> usage of the colors listed in ffmpeg-utils?Color by name are somewhere listed otherwise all colors set in hex are accepted. > > Please check that I got the defaults correct. Defaults are fine. > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
