Manual Pages for UNIX Operating System command usage for man mlib_VideoDCT8x8_S16_U8_NA

mediaLib Library Functions      mlib_VideoDCT8x8_S16_U8_NA(3MLIB)



NAME
     mlib_VideoDCT8x8_S16_U8_NA   -   forward   Discrete   Cosine
     Transform (DCT)

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

     mlib_status mlib_VideoDCT8x8_S16_U8_NA(mlib_s16 coeffs[64],
          const mlib_u8 *block, mlib_s32 stride);


DESCRIPTION
     The mlib_VideoDCT8x8_S16_U8_NA() function computes the  for-
     ward  DCT  for the destination DCT coefficients of data type
     mlib_s16 and source block of data type mlib_u8.  The  stride
     applies  to  the  block  that is part of the frame currently
     being encoded.


     This function requires no special address alignment.


     This function can be used in JPEG with 8-bit  precision,  or
     in MPEG for the intra mode.

PARAMETERS
     The function takes the following arguments:

     coeffs    Pointer to the destination DCT coefficients.


     block     Pointer to an 8x8 block in the current frame.


     stride    Stride in  bytes  between  adjacent  rows  in  the
               block.


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_VideoDCT8x8_S16_U8_NA(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_B10(3MLIB),
     mlib_VideoDCT8x8_S16_S16_B10_NA(3MLIB),
     mlib_VideoDCT8x8_S16_S16_B12(3MLIB),
     mlib_VideoDCT8x8_S16_U8(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