mediaLib Library Functions      mlibVideoColorYUV2ABGR420(3MLIB)



NAME
     mlibVideoColorYUV2ABGR420 - YUV to RGB color conversion

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

     mlibstatus mlibVideoColorYUV2ABGR420(mlibu8 *abgr, const mlibu8 *y,
          const mlibu8 *u, const mlibu8 *v, mlibs32 width, mlibs32 height,
          mlibs32 rgbstride, mlibs32 ystride, mlibs32 uvstride);


DESCRIPTION
     The mlibVideoColorYUV2ABGR420() function  performs  YUV  to
     RGB  color conversion used in MPEG1 and MPEG2 video compres-
     sion in the 4:2:0 sequence.


     The luminance component is stored in Y, the chrominance com-
     ponents are stored in U and V, respectively. The size of the
     chrominance image depends on the chroma format used  by  the
     sequence.  In  this sequence, the chrominance components are
     subsampled 2-to-1 in both the horizontal and vertical direc-
     tions in respect to the luminance component.

PARAMETERS
     The function takes the following arguments:

     abgr          Pointer to the destination packed ABGR image.


     y             Pointer to the source Y component.


     u             Pointer to the source U component.


     v             Pointer to the source V component.


     width         Width of the image.


     height        Height of the image.


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


     ystride      Stride, in bytes, between adjacent rows in the
                   Y component image.



SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions      mlibVideoColorYUV2ABGR420(3MLIB)



     uvstride     Stride, in bytes, between adjacent rows in the
                   U and V component images.


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

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



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


SEE ALSO
     mlibVideoColorYUV2ABGR411(3MLIB),
     mlibVideoColorYUV2ABGR422(3MLIB),
     mlibVideoColorYUV2ABGR444(3MLIB),
     mlibVideoColorYUV2ARGB411(3MLIB),
     mlibVideoColorYUV2ARGB420(3MLIB),
     mlibVideoColorYUV2ARGB422(3MLIB),
     mlibVideoColorYUV2ARGB444(3MLIB),
     mlibVideoColorYUV2RGB411(3MLIB),
     mlibVideoColorYUV2RGB420(3MLIB),
     mlibVideoColorYUV2RGB422(3MLIB),
     mlibVideoColorYUV2RGB444(3MLIB), attributes(5)




















SunOS 5.11           Last change: 2 Mar 2007                    2