--- mbcoding.c	2005/04/04 23:49:37	1.51
+++ mbcoding.c	2007/04/28 16:30:20	1.54
@@ -19,7 +19,7 @@
  *  along with this program ; if not, write to the Free Software
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  *
- * $Id: mbcoding.c,v 1.51 2005/04/04 23:49:37 edgomez Exp $
+ * $Id: mbcoding.c,v 1.54 2007/04/28 16:30:20 syskin Exp $
  *
  ****************************************************************************/
 
@@ -36,6 +36,13 @@
 
 #include "../utils/mbfunctions.h"
 
+#ifdef _DEBUG
+# include "../motion/estimation.h"
+# include "../motion/motion_inlines.h"
+# include <assert.h>
+#endif
+
+
 #define LEVELOFFSET 32
 
 /* Initialized once during xvid_global call
@@ -572,13 +579,28 @@
 #endif
 		}
 	}
+
+	bits = BitstreamPos(bs);
+
 	/* code motion vector(s) if motion is local  */
 	if (!pMB->mcsel)
 		for (i = 0; i < (pMB->mode == MODE_INTER4V ? 4 : 1); i++) {
 			CodeVector(bs, pMB->pmvs[i].x, frame->fcode);
 			CodeVector(bs, pMB->pmvs[i].y, frame->fcode);
+
+#ifdef _DEBUG
+			if (i == 0) /* for simplicity */ {
+				int coded_length = BitstreamPos(bs) - bits;
+				int estimated_length = d_mv_bits(pMB->pmvs[i].x, pMB->pmvs[i].y, zeroMV, frame->fcode, 0);
+				assert(estimated_length == coded_length);
+				d_mv_bits(pMB->pmvs[i].x, pMB->pmvs[i].y, zeroMV, frame->fcode, 0);
+			}
+#endif
 		}
 
+	bits = BitstreamPos(bs) - bits;
+	pStat->iMVBits += bits;
+
 	bits = BitstreamPos(bs);
 
 	/* code block coeffs */
@@ -746,6 +768,7 @@
 		}
 	}
 
+	bits = BitstreamPos(bs);
 
 	switch (mb->mode) {
 		case MODE_INTERPOLATE:
@@ -762,6 +785,7 @@
 			CodeVector(bs, mb->pmvs[3].y, 1);	/* prediction is always (0,0) */
 		default: break;
 	}
+	pStat->iMVBits += BitstreamPos(bs) - bits;
 
 	bits = BitstreamPos(bs);
 	for (i = 0; i < 6; i++) {
@@ -1072,6 +1096,14 @@
 			break;
 		}
 		coeff += run;
+		
+#ifdef _DEBUG
+		if(coeff>=64) {
+		  DPRINTF(XVID_DEBUG_ERROR,"error: overflow in coefficient index\n");
+		  return;
+		}
+#endif
+
 		block[scan[coeff]] = level;
 
 		DPRINTF(XVID_DEBUG_COEFF,"block[%i] %i\n", scan[coeff], level);
@@ -1113,6 +1145,13 @@
 		}
 		p += run;
 
+#ifdef _DEBUG
+		if(p>=64)	{
+		  DPRINTF(XVID_DEBUG_ERROR,"error: overflow in coefficient index\n");
+		  return;
+		}
+#endif
+
 		if (level < 0) {
 			level = level*quant_m_2 - quant_add;
 			block[scan[p]] = (level >= -2048 ? level : -2048);
@@ -1148,6 +1187,13 @@
 		}
 		p += run;
 
+#ifdef _DEBUG
+		if(p>=64)	{
+		  DPRINTF(XVID_DEBUG_ERROR,"error: overflow in coefficient index\n");
+		  return;
+		}
+#endif
+
 		if (level < 0) {
 			level = ((2 * -level + 1) * matrix[scan[p]] * quant) >> 4;
 			block[scan[p]] = (level <= 2048 ? -level : -2048);