int cb= block[4][x + 8*y] + 0x80; int cr= block[5][x + 8*y] + 0x80;
int cb= block[4][x + 8*y]; int cr= block[5][x + 8*y];
static inline void idct_put(FourXContext *f, int x, int y){    DCTELEM (*block)[64]= f->block;    int stride= f->current_picture.linesize[0]>>1;    int i;    uint16_t *dst = ((uint16_t*)f->current_picture.data[0]) + y * stride + x;    for(i=0; i<6; i++) idct(block[i]);    for(y=0; y<8; y++){        for(x=0; x<8; x++){            DCTELEM *temp= block[(x>>2) + 2*(y>>2)] + 2*(x&3) + 2*8*(y&3); //FIXME optimize            int cb= block[4][x + 8*y] + 0x80;            int cr= block[5][x + 8*y] + 0x80;            int cg= (cb + cr)>>1;            int y;                        cb+=cb - 0x80;                        y = temp[0];            dst[0       ]= ((y+cb)>>3) + (((y+cg)&0xFC)<<3) + (((y+cr)&0xF8)<<8);            y = temp[1];            dst[1       ]= ((y+cb)>>3) + (((y+cg)&0xFC)<<3) + (((y+cr)&0xF8)<<8);            y = temp[8];            dst[  stride]= ((y+cb)>>3) + (((y+cg)&0xFC)<<3) + (((y+cr)&0xF8)<<8);            y = temp[9];            dst[1+stride]= ((y+cb)>>3) + (((y+cg)&0xFC)<<3) + (((y+cr)&0xF8)<<8);            dst += 2;        }        dst += 2*stride - 2*8;    }//    if(!(f->avctx->flags&CODEC_FLAG_GRAY)){}