cvs commit: ports/multimedia Makefile ports/multimedia/y4mscaler Makefile distinfo pkg-descr

[Pav Lucistnik]

pav         2004/03/26 01:03:08 PST

  FreeBSD ports repository

  Modified files:
    multimedia           Makefile 
  Added files:
    multimedia/y4mscaler Makefile distinfo pkg-descr 
  Log:
  Add y4mscaler, a general-purpose video scaler which operates on YUV4MPEG2
  streams, as produced and consumed by the MJPEGtools such as lav2yuv and
  mpeg2enc(1).
  
  y4mscaler is meant to be used in a pipeline. Thus, input is from stdin, and
  output is to stdout. The essential function of y4mscaler is to scale a
  specified "active" region of the input stream (the source) into a specified
  active region of the output stream (the target). Pixels outside of the active
  region of the source are ignored; pixels outside of the active region of
  the target are filled with a background color. The source may additionally
  have a matte applied to it; pixels outside the source matte are set to a
  separately specified background color.
  
  y4mscaler correctly handles chroma sampling, and thus it can also perform
  chroma subsampling conversions. The YUV4MPEG2 stream format currently only
  supports 4:2:0 subsampling, although y4mscaler can process 4:1:1, 4:2:2, and
  4:4:4 modes by abusing the YUV4MPEG2 format a bit.
  
  Includes preset parameters for popular output streams: DVD, SVCD, VCD,  DV,
  CVD, and SVCD/VCD still images.
  
  PR:             ports/63962
  Submitted by:   michael johnson <ahze at ahze.net>
  
  Revision  Changes    Path
  1.62      +1 -0      ports/multimedia/Makefile
  1.1       +53 -0     ports/multimedia/y4mscaler/Makefile (new)
  1.1       +2 -0      ports/multimedia/y4mscaler/distinfo (new)
  1.1       +24 -0     ports/multimedia/y4mscaler/pkg-descr (new)