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yuvinactive(1)


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)



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