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doc/filters: improve afftfilt documentation

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Paul B Mahol 2018-11-16 19:36:25 +01:00
parent 1f99674ddd
commit 4334e9221e
1 changed files with 4 additions and 4 deletions
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doc/filters.texi
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@ -1072,14 +1072,14 @@ Apply arbitrary expressions to samples in frequency domain.
@table @option
@item real
Set frequency domain real expression for each separate channel separated
by '|'. Default is "1".
by '|'. Default is "re".
If the number of input channels is greater than the number of
expressions, the last specified expression is used for the remaining
output channels.
@item imag
Set frequency domain imaginary expression for each separate channel
separated by '|'. If not set, @var{real} option is used.
separated by '|'. Default is "im".
Each expression in @var{real} and @var{imag} can contain the following
constants and functions:
@ -1104,10 +1104,10 @@ number of channels
current frame pts
@item re
current real part of frequency bin
current real part of frequency bin of current channel
@item im
current imaginary part of frequency bin
current imaginary part of frequency bin of current channel
@item real(b, ch)
Return the value of real part of frequency bin at location (@var{bin},@var{channel})