mediaLib Library Functions  mlibVideoColorJFIFYC2ARGB444(3MLIB)



NAME
     mlibVideoColorJFIFYC2ARGB444 - JFIF YCbCr  to  ARGB  color
     conversion

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

     mlibstatus mlibVideoColorJFIFYC2ARGB444(mlibu8 *argb,
          const mlibu8 *y, const mlibu8 *cb,
          const mlibu8 *cr, mlibs32 n);


DESCRIPTION
     The mlibVideoColorJFIFYC2ARGB444() function performs color
     space  conversion  from  YCbCr to ARGB when used in the JPEG
     File Interchange Format (JFIF).


     The following equation is used:

       A = 0xF
       R = Y                        ] 1.40200 * (Cr - 128)
       G = Y - 0.34414 * (Cb - 128) - 0.71414 * (Cr - 128)
       B = Y ] 1.77200 * (Cb - 128)


PARAMETERS
     The function takes the following arguments:

     argb    Pointer to  destination  ARGB  multi-component  row.
             argb must be 8-byte aligned.


     y       Pointer to source Y component row. y must be  8-byte
             aligned.


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


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


     n       Length of Y component row. The length of Cb  and  Cr
             component  rows  must  be  n. The length of the ARGB
             multi-component row must be 4*n.






SunOS 5.11          Last change: 23 May 2007                    1






mediaLib Library Functions  mlibVideoColorJFIFYC2ARGB444(3MLIB)



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
     mlibVideoColorJFIFYC2ABGR444(3MLIB),
     mlibVideoColorJFIFYC2RGB444(3MLIB),
     mlibVideoColorJFIFYC2RGB444S16(3MLIB), attributes(5)
































SunOS 5.11          Last change: 23 May 2007                    2