/**
Rescale coefficent for Scoeff prediction for luminance
*/
void ScoeffSRescale8x8(RESIDU *CurrResidu, const short W8x8inter [6][64])
{
int i8x8;
for ( i8x8 = 0 ; i8x8 < 4 ; i8x8++ ) {
/* each 4x4 sub-block of block */
int index = i8x8 << 6;
rescale_8x8_residual(CurrResidu -> Qp, &CurrResidu -> LumaLevel [index], &CurrResidu -> LumaLevel [index], W8x8inter);
}
}
/**
This function permits to decode all intra8x8 luminance blocks in a MB.
@param image Table of current frame.
@param LumaLevel Contains the AC luma level of a 4x4 decoded macroblock.
@param PicWidthInPix Width in pixels of the current frame.
@param residu Structure which contains all the residu data of the current macroblock.
@param W8x8_inter is the scaling matrix.
*/
void DecodeResidual8x8 ( unsigned char *Y, RESIDU *CurrResidu, const short PicWidthInPix, const short W8x8 [6][64])
{
short i;
for ( i = 0 ; i < 4 ; i++ ) {
int Locx = LOCX(i << 2);
int Locy = LOCY(i << 2);
// Update the prediction
if (CurrResidu -> Cbp & 1 << i) {
rescale_8x8_residual(CurrResidu -> Qp, &CurrResidu -> LumaLevel [i << 6], &CurrResidu -> LumaLevel [i << 6], W8x8);
ict_8x8(&CurrResidu -> LumaLevel [i << 6], &Y[Locx + Locy * PicWidthInPix], PicWidthInPix);
}
}
}
