--- trunk/xvidcore/src/prediction/mbprediction.c	2002/06/12 20:38:41	195
+++ trunk/xvidcore/src/prediction/mbprediction.c	2002/06/28 15:14:40	248
@@ -42,6 +42,7 @@
   *                                                                            *
   *  Revision history:                                                         *
   *                                                                            *
+  *  29.06.2002 predict_acdc() bounding                                        *
   *  12.12.2001 improved calc_acdc_prediction; removed need for memcpy         *
   *  15.12.2001 moved pmv displacement to motion estimation                    *
   *  30.11.2001	mmx cbp support                                                *
@@ -90,8 +91,13 @@
 			 int16_t qcoeff[64],
 			 uint32_t current_quant,
 			 int32_t iDcScaler,
-			 int16_t predictors[8])
+			 int16_t predictors[8],
+			const unsigned int bound_x,
+			const unsigned int bound_y)
+
 {
+	const unsigned bound = (bound_y * mb_width) + bound_x;
+	const unsigned mbpos = (y * mb_width) + x;
 	int16_t *left, *top, *diag, *current;
 
 	int32_t left_quant = current_quant;
@@ -111,7 +117,7 @@
 
 	// left macroblock 
 
-	if (x &&
+	if (x && mbpos >= bound + 1  &&
 		(pMBs[index - 1].mode == MODE_INTRA ||
 		 pMBs[index - 1].mode == MODE_INTRA_Q)) {
 
@@ -121,7 +127,7 @@
 	}
 	// top macroblock
 
-	if (y &&
+	if (mbpos >= bound + mb_width &&
 		(pMBs[index - mb_width].mode == MODE_INTRA ||
 		 pMBs[index - mb_width].mode == MODE_INTRA_Q)) {
 
@@ -130,7 +136,7 @@
 	}
 	// diag macroblock 
 
-	if (x && y &&
+	if (x && mbpos >= bound + mb_width + 1 &&
 		(pMBs[index - 1 - mb_width].mode == MODE_INTRA ||
 		 pMBs[index - 1 - mb_width].mode == MODE_INTRA_Q)) {
 
@@ -379,7 +385,7 @@
 			iDcScaler = get_dc_scaler(iQuant, (j < 4) ? 1 : 0);
 
 			predict_acdc(frame->mbs, x, y, mb_width, j, &qcoeff[j * 64],
-						 iQuant, iDcScaler, predictors[j]);
+						 iQuant, iDcScaler, predictors[j], 0, 0);
 
 			S += calc_acdc(pMB, j, &qcoeff[j * 64], iDcScaler, predictors[j]);