Manual Pages for UNIX Operating System command usage for man mlib_VideoColorRGB2JFIFYCC420

mediaLib Library Functions   mlib_VideoColorRGB2JFIFYCC420(3MLIB)



NAME
     mlib_VideoColorRGB2JFIFYCC420 -  RGB  to  JFIF  YCbCr  color
     conversion

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

     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  For-
     mat (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-component row must be 3*n.






SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions   mlib_VideoColorRGB2JFIFYCC420(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_VideoColorABGR2JFIFYCC420(3MLIB),
     mlib_VideoColorABGR2JFIFYCC422(3MLIB),
     mlib_VideoColorARGB2JFIFYCC420(3MLIB),
     mlib_VideoColorARGB2JFIFYCC422(3MLIB),
     mlib_VideoColorRGB2JFIFYCC422(3MLIB), attributes(5)






























SunOS 5.11           Last change: 2 Mar 2007                    2