Manual Pages for UNIX Operating System command usage for man mlib_VideoColorYUV444int_to_YUYV422int

mediaLib Library Functions
                    mlib_VideoColorYUV444int_to_YUYV422int(3MLIB)



NAME
     mlib_VideoColorYUV444int_to_YUYV422int - convert YUV  inter-
     leaved with subsampling

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

     void mlib_VideoColorYUV444int_to_YUYV422int(mlib_u32 *YUYV,
          const mlib_u8 *YUV, mlib_s32 w, mlib_s32 h, mlib_s32 dlb,
          mlib_s32 slb);


DESCRIPTION
     The YUV pixel stream is broken apart and recombined  into  a
     YUYV  pixel  stream. All pixel components are 8-bit unsigned
     integers. The YUV 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 Y[r][c], U[r][c], V[r][c],
     Y[r][c+1], U[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.


     YUV     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
                    mlib_VideoColorYUV444int_to_YUYV422int(3MLIB)



     slb     Linebytes for input buffers.


RETURN VALUES
     None.

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



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | MT-Safe                     |
    |_____________________________|_____________________________|


SEE ALSO
     mlib_VideoColorYUV444seq_to_YUYV422int(3MLIB),
     mlib_VideoColorYUV444seq_to_UYVY422int(3MLIB),
     mlib_VideoColorYUV444int_to_UYVY422int(3MLIB),
     mlib_VideoColorUYV444int_to_YUYV422int(3MLIB),
     mlib_VideoColorUYV444int_to_UYVY422int(3MLIB), attributes(5)



























SunOS 5.11           Last change: 2 Mar 2007                    2






mediaLib Library Functions
                    mlib_VideoColorYUV444int_to_YUYV422int(3MLIB)






















































SunOS 5.11           Last change: 2 Mar 2007                    3