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author | Paul B Mahol <onemda@gmail.com> | 2019-04-30 16:44:28 +0200 |
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committer | Paul B Mahol <onemda@gmail.com> | 2019-05-31 12:53:20 +0200 |
commit | b19550367fff8d8d77e94c4c5eaac42e70c61fc5 (patch) | |
tree | 995a20984eb08d8b554bbae12c34f6bca45f30e4 /doc/filters.texi | |
parent | 9c35285aea84be916ab19a1ed3627afaad461199 (diff) | |
download | ffmpeg-streaming-b19550367fff8d8d77e94c4c5eaac42e70c61fc5.zip ffmpeg-streaming-b19550367fff8d8d77e94c4c5eaac42e70c61fc5.tar.gz |
avfilter: add showspatial multimedia filter
Diffstat (limited to 'doc/filters.texi')
-rw-r--r-- | doc/filters.texi | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 4fdcfe9..60df5bf 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -22248,6 +22248,58 @@ Set minimum amplitude used in @code{log} amplitude scaler. @end table +@section showspatial + +Convert stereo input audio to a video output, representing the spatial relationship +between two channels. + +The filter accepts the following options: + +@table @option +@item size, s +Specify the video size for the output. For the syntax of this option, check the +@ref{video size syntax,,"Video size" section in the ffmpeg-utils manual,ffmpeg-utils}. +Default value is @code{512x512}. + +@item win_size +Set window size. Allowed range is from @var{1024} to @var{65536}. Default size is @var{4096}. + +@item win_func +Set window function. + +It accepts the following values: +@table @samp +@item rect +@item bartlett +@item hann +@item hanning +@item hamming +@item blackman +@item welch +@item flattop +@item bharris +@item bnuttall +@item bhann +@item sine +@item nuttall +@item lanczos +@item gauss +@item tukey +@item dolph +@item cauchy +@item parzen +@item poisson +@item bohman +@end table + +Default value is @code{hann}. + +@item overlap +Set ratio of overlap window. Default value is @code{0.5}. +When value is @code{1} overlap is set to recommended size for specific +window function currently used. +@end table + @anchor{showspectrum} @section showspectrum |