libavcodec/svq3.c:521: error: Buffer Overrun L1
  Offset added: 16 Size: 4.

libavcodec/svq3.c:458:1: <Length trace>
456. }
457. 
458. static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
     ^
459. {
460.     H264Context *h = &svq3->h;

libavcodec/svq3.c:458:1: Parameter `svq3->h.mv_cache[*][*][*]`
456. }
457. 
458. static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
     ^
459. {
460.     H264Context *h = &svq3->h;

libavcodec/svq3.c:521:17: Array access: Offset added: 16 Size: 4
519.             }
520.             if (s->mb_y > 0) {
521.                 memcpy(h->mv_cache[m][scan8[0] - 1 * 8],
                     ^
522.                        s->current_picture.f.motion_val[m][b_xy - h->b_stride],
523.                        4 * 2 * sizeof(int16_t));
