Manual Pages for UNIX Operating System command usage for man mlib_VideoDCT2x2_S16_S16

mediaLib Library Functions        mlib_VideoDCT2x2_S16_S16(3MLIB)



NAME
     mlib_VideoDCT2x2_S16_S16 - forward Discrete Cosine Transform
     (DCT)

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

     mlib_status mlib_VideoDCT2x2_S16_S16(mlib_s16 coeffs[4],
         const mlib_s16 block[4]);


DESCRIPTION
     The mlib_VideoDCT2x2_S16_S16() function computes the forward
     DCT  for  the  destination  DCT  coefficients  of  data type
     mlib_s16 and a source block of data type mlib_s16. The input
     to  the  DCT  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
     source and  destination  buffer  addresses  must  be  8-byte
     aligned.

PARAMETERS
     The function takes the following arguments:

     coeffs    Pointer  to  the  destination  DCT   coefficients.
               coeffs must be 8-byte aligned.


     block     Pointer to an 2x2 motion-compensated block that is
               the difference between the reference block and the
               current block. block must 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_VideoDCT2x2_S16_S16(3MLIB)



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


SEE ALSO
     mlib_VideoDCT2x2_S16_S16(3MLIB),
     mlib_VideoDCT4x4_S16_S16(3MLIB),
     mlib_VideoDCT8x8_S16_S16(3MLIB),
     mlib_VideoDCT8x8_S16_S16_B12(3MLIB),
     mlib_VideoDCT8x8_S16_S16_NA(3MLIB),
     mlib_VideoDCT8x8_S16_U8(3MLIB),
     mlib_VideoDCT8x8_S16_U8_NA(3MLIB),
     mlib_VideoDCT16x16_S16_S16(3MLIB),
     mlib_VideoDCT16x16_S16_S16_B10(3MLIB),
     mlib_VideoDeQuantize_S16(3MLIB),
     mlib_VideoDeQuantizeInit_S16(3MLIB),
     mlib_VideoQuantize_S16(3MLIB),
     mlib_VideoQuantizeInit_S16(3MLIB), attributes(5)
































SunOS 5.11           Last change: 2 Mar 2007                    2