sunos man page for mlib_videocoloryuv420seq_to_yuyv422int

mlib_VideoColorYUV420seq_to_YUYV422int(3MLIB)		    mediaLib Library Functions		     mlib_VideoColorYUV420seq_to_YUYV422int(3MLIB)

NAME
       mlib_VideoColorYUV420seq_to_YUYV422int - convert YUV sequential to interleaved

SYNOPSIS
       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       void  mlib_VideoColorYUV420seq_to_YUYV422int(mlib_u32  *YUYV, const mlib_u8 *Y, const mlib_u8 *U, const mlib_u8 *V, mlib_s32 w, mlib_s32 h,
       mlib_s32 dlb, mlib_s32 ylb, mlib_s32 uvlb);

DESCRIPTION
       The Y, U, V pixel streams are combined into a YUYV pixel stream.  All pixel components are 8-bit unsigned integers. The Y buffer has dimen-
       sions  w  and h. The U and V buffers have dimensions w/2 and h/2.  Dimensions w and h are assumed to be even. Successive rows of the output
       buffer YUYV use successive rows of Y and the same rows of U and V.

       The following equation is used:

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

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

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

PARAMETERS
       The function takes the following arguments:

       YUYV	       Pointer to output buffer.

       Y	       Pointer to Y input buffer.

       U	       Pointer to U input buffer.

       V	       Pointer to V input buffer.

       w	       Image width in pixels.

       h	       Image height in lines.

       dlb	       Linebytes for YUYV buffer.

       ylb	       Linebytes for Y buffer.

       uvlb	       Linebytes for U and V buffers.

RETURN VALUES
       None.

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       mlib_VideoColorYUV411seq_to_YUYV422int(3MLIB),		     mlib_VideoColorYUV422seq_to_YUYV422int(3MLIB),		    mlib_VideoCol-
       orYUV420seq_to_UYVY422int(3MLIB),       mlib_VideoColorYUV411seq_to_UYVY422int(3MLIB),	    mlib_VideoColorYUV422seq_to_UYVY422int(3MLIB),
       attributes(5)

SunOS 5.10							    10 Nov 2004 		     mlib_VideoColorYUV420seq_to_YUYV422int(3MLIB)