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avfilter/af_aiir: draw IR frequency response

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
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Paul B Mahol
2018-05-30 12:43:09 +02:00
parent d0e740b8fb
commit 1aa5192451
2 changed files with 263 additions and 13 deletions
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doc/filters.texi
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@@ -1136,6 +1136,16 @@ single-precision floating-point
16-bit integers
@end table
@item response
Show IR frequency reponse, magnitude and phase in additional video stream.
By default it is disabled.
@item channel
Set for which IR channel to display frequency response. By default is first channel
displayed. This option is used only when @var{response} is enabled.
@item size
Set video stream size. This option is used only when @var{response} is enabled.
@end table
Coefficients in @code{tf} format are separated by spaces and are in ascending