mediaLib Library Functions
                    mlibVideoColorUYV444inttoYUYV422int(3MLIB)



NAME
     mlibVideoColorUYV444inttoYUYV422int - convert UYV  inter-
     leaved with subsampling

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

     void mlibVideoColorUYV444inttoYUYV422int(mlibu32 *YUYV,
          const mlibu8 *UYV,mlibs32 w,mlibs32 h,
          mlibs32 dlb, mlibs32 slb);


DESCRIPTION
     The UYV pixel stream is broken apart and recombined  into  a
     YUYV  pixel  stream. All pixel components are 8-bit unsigned
     integers. The UYV buffer has dimensions w and h. Dimension w
     is  assumed  to  be a multiple of 2. Adjacent U and V values
     are averaged to get the output U and V values. The  sequence
     of  values in the input stream is U[r][c], Y[r][c], V[r][c],
     U[r][c]1], Y[r][c]1], V[r][c]1], ...


     The following equation is used:

       YUYV[r][c/2] = (Y[r][c]  << 24) 
                      (((U[r][c] ] U[r][c]1]) / 2) << 16) 
                      (Y[r][c]1] << 8) 
                      (((V[r][c] ] V[r][c]1]) / 2))



     where r = 0, 1, 2, ..., h-1; and c = 0, 2, 4, ..., w-2.

PARAMETERS
     The function takes the following arguments:

     YUYV    Pointer to output buffer.


     UYV     Pointer to input buffer.


     w       Image width in pixels.


     h       Image height in lines.


     dlb     Linebytes for output buffer.




SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions
                    mlibVideoColorUYV444inttoYUYV422int(3MLIB)



     slb     Linebytes for input buffer.


RETURN VALUES
     None.

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



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


SEE ALSO
     mlibVideoColorYUV444seqtoYUYV422int(3MLIB),
     mlibVideoColorYUV444inttoYUYV422int(3MLIB),
     mlibVideoColorYUV444seqtoUYVY422int(3MLIB),
     mlibVideoColorYUV444inttoUYVY422int(3MLIB),
     mlibVideoColorUYV444inttoUYVY422int(3MLIB), attributes(5)



























SunOS 5.11           Last change: 2 Mar 2007                    2






mediaLib Library Functions
                    mlibVideoColorUYV444inttoYUYV422int(3MLIB)






















































SunOS 5.11           Last change: 2 Mar 2007                    3