mediaLib Library Functions     mlibVideoP64DecimateU8U8(3MLIB)



NAME
     mlibVideoP64DecimateU8U8 -  averages  the  source  raster
     image over 2x2 blocks and writes the results to the destina-
     tion raster image

SYNOPSIS
     cc [ flag... ] file... -lmlib [ library... ]
     #include 

     mlibstatus mlibVideoP64DecimateU8U8(mlibu8 *dst,
          const mlibu8 *src, mlibs32 width, mlibs32 height,
          mlibs32 dststride, mlibs32 srcstride);


DESCRIPTION
     The  mlibVideoP64DecimateU8U8()  function  averages   the
     source  raster  image over 2x2 blocks and writes the results
     to the destination raster image. This function is used  when
     the  remote  side  is  only  capable of QCIF and our scanned
     image is source to the encoder in CIF format.

PARAMETERS
     The function takes the following arguments:

     dst           Pointer to the destination raster image.


     src           Pointer to the source raster image.


     width         Width of the image.


     height        Height of the image.


     dststride    Stride, in bytes, between adjacent rows in the
                   destination image.


     srcstride    Stride, in bytes, between adjacent rows in the
                   source image.


RETURN VALUES
     The function returns MLIBSUCES if  successful.  Otherwise
     it returns MLIBFAILURE.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:




SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions     mlibVideoP64DecimateU8U8(3MLIB)



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Committed                   
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     mlibVideoAddBlockU8S16(3MLIB),
     mlibVideoCopyRefS16U8(3MLIB),
     mlibVideoCopyRefS16U816x16(3MLIB),
     mlibVideoCopyRefU8U816x16(3MLIB),
     mlibVideoCopyRefAveU8U816x16(3MLIB),
     mlibVideoH263OverlappedMCS16U8(3MLIB),
     mlibVideoH263OverlappedMCU8U8(3MLIB),
     mlibVideoInterpAveXU8U8(3MLIB),
     mlibVideoInterpAveXU8U816x16(3MLIB),
     mlibVideoInterpAveXYU8U8(3MLIB),
     mlibVideoInterpAveXYU8U816x16(3MLIB),
     mlibVideoInterpAveYU8U8(3MLIB),
     mlibVideoInterpAveYU8U816x16(3MLIB),
     mlibVideoInterpXS16U8(3MLIB),
     mlibVideoInterpXS16U816x16(3MLIB),
     mlibVideoInterpXU8U8(3MLIB),
     mlibVideoInterpXYS16U8(3MLIB),
     mlibVideoInterpXYS16U816x16(3MLIB),
     mlibVideoInterpXYU8U8(3MLIB),
     mlibVideoInterpXYU8U816x16(3MLIB),
     mlibVideoInterpYS16U8(3MLIB),
     mlibVideoInterpYS16U816x16(3MLIB),
     mlibVideoInterpYU8U8(3MLIB),
     mlibVideoInterpYU8U816x16(3MLIB),
     mlibVideoP64DecimateU8U8(3MLIB),
     mlibVideoP64LoopS16U8(3MLIB),
     mlibVideoP64LoopU8U8(3MLIB),
     mlibVideoP64LoopS16U8(3MLIB),
     mlibVideoP64LoopU8U8(3MLIB), attributes(5)
















SunOS 5.11           Last change: 2 Mar 2007                    2