static int epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr, int P[5][2], int pred_x, int pred_y, int xmin, int ymin, int xmax, int ymax) { int best[2]={0, 0}; int d, dmin; UINT8 *new_pic, *old_pic; const int pic_stride= s->linesize; const int pic_xy= (s->mb_y*pic_stride + s->mb_x)*16; UINT16 *mv_penalty= s->mv_penalty[s->f_code] + MAX_MV; // f_code of the prev frame int quant= s->qscale; // qscale of the prev frame const int shift= 1+s->quarter_sample; new_pic = s->new_picture[0] + pic_xy; old_pic = s->last_picture[0] + pic_xy; //printf("%d %d %d %d\n", xmin, ymin, xmax, ymax); dmin = pix_abs16x16(new_pic, old_pic, pic_stride, 16); if(dmin<Z_THRESHOLD){ *mx_ptr= 0; *my_ptr= 0; //printf("Z"); return dmin; } /* first line */ if ((s->mb_y == 0 || s->first_slice_line || s->first_gob_line)) { CHECK_MV(P[1][0]>>shift, P[1][1]>>shift) }else{ CHECK_MV(P[4][0]>>shift, P[4][1]>>shift) if(dmin<Z_THRESHOLD){ *mx_ptr= P[4][0]>>shift; *my_ptr= P[4][1]>>shift; //printf("M\n"); return dmin; } CHECK_MV(P[1][0]>>shift, P[1][1]>>shift) CHECK_MV(P[2][0]>>shift, P[2][1]>>shift) CHECK_MV(P[3][0]>>shift, P[3][1]>>shift) } CHECK_MV(P[0][0]>>shift, P[0][1]>>shift) dmin= small_diamond_search(s, best, dmin, new_pic, old_pic, pic_stride, pred_x, pred_y, mv_penalty, quant, xmin, ymin, xmax, ymax, shift); *mx_ptr= best[0]; *my_ptr= best[1]; // printf("%d %d %d \n", best[0], best[1], dmin); return dmin; }