suckless command-line video editing utility
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commit f22da30b8bb873ce826996fc53648094eb52ebaf
parent 56ed14063c8b2c82d5ea0652028f47f76cb710f0
Author: Mattias Andrée <>
Date:   Mon,  3 Jul 2017 14:39:57 +0200

Document blind-sinc-wave

Signed-off-by: Mattias Andrée <>

man/blind-sawtooth-wave.1 | 1-
man/blind-sinc-wave.1 | 55+++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/man/blind-sawtooth-wave.1 b/man/blind-sawtooth-wave.1 @@ -21,7 +21,6 @@ are identical. .BR blind (7), .BR blind-double-sine-wave (1), .BR blind-round-wave (1), -.BR blind-sawtooth-wave (1), .BR blind-sinc-wave (1), .BR blind-sine-wave (1), .BR blind-triangular-wave (1), diff --git a/man/blind-sinc-wave.1 b/man/blind-sinc-wave.1 @@ -0,0 +1,55 @@ +.TH BLIND-SINC-WAVE 1 blind +.SH NAME +blind-sinc-wave - Apply cardinal sine-wave repetition to gradient +.SH SYNOPSIS +.B blind-sinc-wave +[-e] +.RI [ theta0-stream ] +.SH DESCRIPTION +.B blind-sinc-wave +reads a video from stdin, applies a filter to +each channel to it, and prints the result to +stdout. The filter is designed for applying +repetition to a gradient, and thus assumes the +range of visible values is [0, 1]. The applied +filter creates a cardinal sine-wave. +.P +If +.I theta0-stream +is specified, it must be a video with only +one pixel per frame. When applying the sine +function, it is applied to the sum of the +pixel it is applied to and the pixel in +the same frame in +.IR theta0-stream . +.SH NOTES +.BR blind-arithm (1) +with the +.B mul +and +.B div +operators can be used to stretch the wave. +.SH OPTIONS +.TP +.B -e +Apply optimisation that assumes all channels +are identical. If +.I theta0-stream +is specified, the values from its second channel +(the Y channel) are used for all channels. +.SH SEE ALSO +.BR blind (7), +.BR blind-arithm (1), +.BR blind-double-sine-wave (1), +.BR blind-round-wave (1), +.BR blind-sawtooth-wave (1), +.BR blind-sine-wave (1), +.BR blind-triangular-wave (1), +.BR blind-cone-gradient (1), +.BR blind-linear-gradient (1), +.BR blind-radial-gradient (1), +.BR blind-spiral-gradient (1), +.BR blind-square-gradient (1) +.SH AUTHORS +Mattias Andrée +.RI < >