Manual Pages for UNIX Operating System command usage for man mlib_VideoIDCT_IEEE_S16_S16

mediaLib Library Functions     mlib_VideoIDCT_IEEE_S16_S16(3MLIB)



NAME
     mlib_VideoIDCT_IEEE_S16_S16 -  IEEE-1180  compliant  inverse
     Discrete Cosine Transform

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

     mlib_status mlib_VideoIDCT_IEEE_S16_S16(mlib_s16 block[64],
          const mlib_s16 coeffs[64]);


DESCRIPTION
     The  mlib_VideoIDCT_IEEE_S16_S16()  function  computes   the
     inverse  DCT (called IDCT) for the output IDCT block of data
     type mlib_s16  and  input  DCT  coefficients  of  data  type
     mlib_s16.  This function is guaranteed to be IEEE-1180 -com-
     pliant. The output of the IDCT  routine  is  the  difference
     between  the  current  block  and  the  reference block. The
     difference pixel can occupy nine bits and is represented  as
     a  16-bit  datum.  The  output  must be added to the motion-
     compensated reference block  in  order  to  reconstruct  the
     current block.

PARAMETERS
     The function takes the following arguments:

     block     Pointer to an 8x8 motion-compensated block that is
               the difference between the reference block and the
               current block. block need not be 8-byte aligned.


     coeffs    Pointer to the  source  DCT  coefficients.  coeffs
               need not be 8-byte aligned.


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:












SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions     mlib_VideoIDCT_IEEE_S16_S16(3MLIB)



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | MT-Safe                     |
    |_____________________________|_____________________________|


SEE ALSO
     mlib_VideoIDCT8x8_S16_S16(3MLIB),
     mlib_VideoIDCT8x8_S16_S16_DC(3MLIB),
     mlib_VideoIDCT8x8_S16_S16_NA(3MLIB),
     mlib_VideoIDCT8x8_S16_S16_Q1(3MLIB),
     mlib_VideoIDCT8x8_U8_S16(3MLIB),
     mlib_VideoIDCT8x8_U8_S16_DC(3MLIB),
     mlib_VideoIDCT8x8_U8_S16_NA(3MLIB),
     mlib_VideoIDCT8x8_U8_S16_Q1(3MLIB), attributes(5)





































SunOS 5.11           Last change: 2 Mar 2007                    2