plm_video_process_macroblock()

void fl::third_party::plm_video_process_macroblock	(	plm_video_t *	self,
		uint8_t *	s,
		uint8_t *	d,
		int	mh,
		int	mb,
		int	bs,
		int	interp )

Definition at line 2687 of file pl_mpeg.hpp.

              {
    int dw = self->mb_width * block_size;
 
    int hp = motion_h >> 1;
    int vp = motion_v >> 1;
    int odd_h = (motion_h & 1) == 1;
    int odd_v = (motion_v & 1) == 1;
 
    unsigned int si = ((self->mb_row * block_size) + vp) * dw + (self->mb_col * block_size) + hp;
    unsigned int di = (self->mb_row * dw + self->mb_col) * block_size;
    
    unsigned int max_address = (dw * (self->mb_height * block_size - block_size + 1) - block_size);
    if (si > max_address || di > max_address) {
        return; // corrupt video
    }
 
    #define PLM_MB_CASE(INTERPOLATE, ODD_H, ODD_V, OP) \
        case ((INTERPOLATE << 2) | (ODD_H << 1) | (ODD_V)): \
            PLM_BLOCK_SET(d, di, dw, si, dw, block_size, OP); \
            break
 
    switch ((interpolate << 2) | (odd_h << 1) | (odd_v)) {
        PLM_MB_CASE(0, 0, 0, (s[si]));
        PLM_MB_CASE(0, 0, 1, (s[si] + s[si + dw] + 1) >> 1);
        PLM_MB_CASE(0, 1, 0, (s[si] + s[si + 1] + 1) >> 1);
        PLM_MB_CASE(0, 1, 1, (s[si] + s[si + 1] + s[si + dw] + s[si + dw + 1] + 2) >> 2);
 
        PLM_MB_CASE(1, 0, 0, (d[di] + (s[si]) + 1) >> 1);
        PLM_MB_CASE(1, 0, 1, (d[di] + ((s[si] + s[si + dw] + 1) >> 1) + 1) >> 1);
        PLM_MB_CASE(1, 1, 0, (d[di] + ((s[si] + s[si + 1] + 1) >> 1) + 1) >> 1);
        PLM_MB_CASE(1, 1, 1, (d[di] + ((s[si] + s[si + 1] + s[si + dw] + s[si + dw + 1] + 2) >> 2) + 1) >> 1);
    }
 
    #undef PLM_MB_CASE
}

References FL_NOEXCEPT, and PLM_MB_CASE.

Referenced by plm_video_copy_macroblock(), and plm_video_interpolate_macroblock().

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