NAME
yuvinactive - Set a part of the video to a defined state
SYNOPSIS
yuvinactive [options] </dev/stdin >/dev/stdout
DESCRIPTION
yuvinactive operates with a area (rectangle) you define. By default is
sets it to really black. But you can tell tell yuvinactive to darken
the area, or fill it with a certain color. It can also make the content
of the area unreadable, like extreme softening of the area. Or copy
the surrounding area into the the specified area. You usually have to
use the -i option which sets the area in which yuvinactive will work.
If no additional option is given yuvinactive stet the area to black.
But you can use the -d -s -a -c options to tell yuvinactive that it
shall do something different with that area. You can only use one
additional option. yuvinactive was built to remove unwanted things like
a logo, from the movie.
OPTIONS
lav2yuv accepts the following options:
-h Some help output
-iXxY+XOFF+YOFF
Specifies the area yuvinactive shall work with. With this option
the area is set to black. There are no restrictions because of
interlacing.
-d num
How much darker the area should be compared to the original color.
This is done by setting a lower value for the luma. The value is
in percent from the original luma.
-s num
Here you specify a certain color in the yuv format.
-a num
With this option the program uses on pixel and averages the
surrounding pixels with the same color to make the original less
readable. The number tells the the program how much pixels around
the original pixel should be overwritten with the same color. You
have to use a even number here
-c num
Sets the number of surrounding pixels yuvinactive should use to
copy them into the given area. You have to use a even number here.
yuvinactive uses the lines above and below the specified area for
copying them into the area.
BUGS
Right, there are bugs hidden. The thing is not well tested, and not
every option might work. yuvinactive is in the first state of becoming
a useful program.
AUTHOR
This man page was originally written by Bernhard Praschinger.
If you have questions, remarks, problems or you just want to contact
the developers, the main mailing list for the MJPEG-tools is:
mjpeg-users@lists.sourceforge.net
For more info, see our website at
http://mjpeg.sourceforge.net
SEE ALSO
mjpegtools(1), lav2yuv(1), mpeg2enc(1), yuvscaler(1), yuv2lav(1),
yuvdenoise(1), yuvplay(1), yuvmedianfilter(1)