blind

suckless command-line video editing utility
git clone git://git.suckless.org/blind
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blind-transition.1 (1027B)

      1 .TH BLIND-TRANSITION 1 blind
      2 .SH NAME
      3 blind-transition - Turn a gradient video to transition-gradient video
      4 .SH SYNOPSIS
      5 .B blind-transition
      6 [-ir] [-s
      7 .IR softness-stream ]
      8 .SH DESCRIPTION
      9 .B blind-transition
     10 reads a video from stdin and prints a version of
     11 it to stdout suitable for input to
     12 .BR blind-set-alpha (1)
     13 to for creation an transition effect.
     14 .P
     15 The luma in stdin is used to determine when a
     16 pixel in the video shall be opaque.
     17 .SH OPTION
     18 .TP
     19 .B -i
     20 Invert the transition.
     21 .TP
     22 .B -r
     23 Reverse the transition.
     24 .TP
     25 .BR -s \ \fIsoftness-stream\fP
     26 The luma multiplied by the opacity for each pixel
     27 in each frame in the video from
     28 .I softness-stream
     29 will be used as the transitional softness for that
     30 pixel in the video.
     31 .SH SEE ALSO
     32 .BR blind (7),
     33 .BR blind-set-alpha (1),
     34 .BR blind-dissolve (1),
     35 .BR blind-stack (1),
     36 .BR blind-cone-gradient (1),
     37 .BR blind-linear-gradient (1),
     38 .BR blind-radial-gradient (1),
     39 .BR blind-spiral-gradient (1),
     40 .BR blind-square-gradient (1)
     41 .SH AUTHORS
     42 Mattias Andrée
     43 .RI < maandree@kth.se >