opensolaris man page for mlib_videocolorrgb2jfifycc420

mlib_VideoColorRGB2JFIFYCC420(3MLIB)			    mediaLib Library Functions			      mlib_VideoColorRGB2JFIFYCC420(3MLIB)

NAME
       mlib_VideoColorRGB2JFIFYCC420 - RGB to JFIF YCbCr color conversion

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

       mlib_status mlib_VideoColorRGB2JFIFYCC420(mlib_u8 *y0, mlib_u8 *y1,
	    mlib_u8 *cb, mlib_u8 *cr, const mlib_u8 *rgb0, const mlib_u8 *rgb1,
	    mlib_s32 n);

DESCRIPTION
       The  mlib_VideoColorRGB2JFIFYCC420() function performs color space conversion from RGB to YCbCr together with sampling rate conversion when
       used in the JPEG File Interchange Format (JFIF).

PARAMETERS
       The function takes the following arguments:

       y0      Pointer to upper destination Y component row. y0 must be 8-byte aligned.

       y1      Pointer to lower destination Y component row. y1 must be 8-byte aligned.

       cb      Pointer to destination Cb component row. cb must be 8-byte aligned.

       cr      Pointer to destination Cr component row. cr must be 8-byte aligned.

       rgb0    Pointer to upper source RGB multi-component row. rgb0 must be 8-byte aligned.

       rgb1    Pointer to lower source RGB multi-component row. rgb1 must be 8-byte aligned.

       n       Length of Y component row. n must be even. The length of Cb and Cr component rows must be n/2. The length of the  RGB  multi-compo-
	       nent row must be 3*n.

RETURN VALUES
       The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

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

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

SEE ALSO
       mlib_VideoColorABGR2JFIFYCC420(3MLIB),	 mlib_VideoColorABGR2JFIFYCC422(3MLIB),    mlib_VideoColorARGB2JFIFYCC420(3MLIB),   mlib_VideoCol-
       orARGB2JFIFYCC422(3MLIB), mlib_VideoColorRGB2JFIFYCC422(3MLIB), attributes(5)

SunOS 5.11							    2 Mar 2007				      mlib_VideoColorRGB2JFIFYCC420(3MLIB)