Manual Pages for UNIX Operating System command usage for man mlib_VideoColorJFIFYCC2ABGR444

mediaLib Library Functions  mlib_VideoColorJFIFYCC2ABGR444(3MLIB)



NAME
     mlib_VideoColorJFIFYCC2ABGR444 - JFIF YCbCr  to  ABGR  color
     conversion

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

     mlib_status mlib_VideoColorJFIFYCC2ABGR444(mlib_u8 *abgr,
          const mlib_u8 *y, const mlib_u8 *cb,
          const mlib_u8 *cr, mlib_s32 n);


DESCRIPTION
     The mlib_VideoColorJFIFYCC2ABGR444() function performs color
     space  conversion  from  YCbCr to ABGR when used in the JPEG
     File Interchange Format (JFIF).


     The following equation is used:

       A = 0xFF
       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:

     abgr    Pointer to  destination  ABGR  multi-component  row.
             abgr 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 ABGR
             multi-component row must be 4*n.






SunOS 5.11          Last change: 23 May 2007                    1






mediaLib Library Functions  mlib_VideoColorJFIFYCC2ABGR444(3MLIB)



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

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_VideoColorJFIFYCC2ARGB444(3MLIB),
     mlib_VideoColorJFIFYCC2RGB444(3MLIB),
     mlib_VideoColorJFIFYCC2RGB444_S16(3MLIB), attributes(5)
































SunOS 5.11          Last change: 23 May 2007                    2