mediaLib Library Functions
                           mlibVideoDCT8x8QuantizeS16U8(3MLIB)



NAME
     mlibVideoDCT8x8QuantizeS16U8 -  forward  Discrete  Cosine
     Transform (DCT) and quantization

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

     mlibstatus mlibVideoDCT8x8QuantizeS16U8(
          mlibs16 coeffs[64], const mlibu8 *block,
          const mlibd64 dqtable[64], mlibs32 stride);


DESCRIPTION
     The mlibVideoDCT8x8QuantizeS16U8() function computes  the
     forward  DCT and then quantizes the DCT coefficients. It's a
     combination      of      mlibVideoDCT8x8S16U8()       and
     mlibVideoQuantizeS16() for better performance.


     The source and destination buffer addresses must  be  8-byte
     aligned.


     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 quantized DCT  coefficients.  Note
                that coeffs must be 8-byte aligned.


     block      Pointer to an 8x8 block. Note that block must  be
                8-byte aligned.


     dqtable    Pointer to the quantization  table  generated  by
                mlibVideoQuantizeInitS16().


     stride     Stride in bytes  between  adjacent  rows  in  the
                block.  Note  that  stride  must be a multiple of
                eight.


RETURN VALUES
     The function returns MLIBSUCES if  successful.  Otherwise
     it returns MLIBFAILURE.




SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions
                           mlibVideoDCT8x8QuantizeS16U8(3MLIB)



ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Committed                   
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     mlibVideoDCT8x8QuantizeS16S16B12(3MLIB),
     mlibVideoDCT8x8QuantizeS16S16B12NA(3MLIB),
     mlibVideoDCT8x8QuantizeS16U8NA(3MLIB),
     mlibVideoQuantizeInitS16(3MLIB), attributes(5)


































SunOS 5.11           Last change: 2 Mar 2007                    2






mediaLib Library Functions
                           mlibVideoDCT8x8QuantizeS16U8(3MLIB)






















































SunOS 5.11           Last change: 2 Mar 2007                    3