diff options
| -rw-r--r-- | libavcodec/cavsdec.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libavcodec/cavsdec.c b/libavcodec/cavsdec.c index 51f6e25d34..20cc18081e 100644 --- a/libavcodec/cavsdec.c +++ b/libavcodec/cavsdec.c @@ -1003,11 +1003,11 @@ static int decode_pic(AVSContext *h) /* get temporal distances and MV scaling factors */ if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) { - h->dist[0] = (h->cur.poc - h->DPB[0].poc + 512) % 512; + h->dist[0] = (h->cur.poc - h->DPB[0].poc) & 511; } else { - h->dist[0] = (h->DPB[0].poc - h->cur.poc + 512) % 512; + h->dist[0] = (h->DPB[0].poc - h->cur.poc) & 511; } - h->dist[1] = (h->cur.poc - h->DPB[1].poc + 512) % 512; + h->dist[1] = (h->cur.poc - h->DPB[1].poc) & 511; h->scale_den[0] = h->dist[0] ? 512/h->dist[0] : 0; h->scale_den[1] = h->dist[1] ? 512/h->dist[1] : 0; if (h->cur.f->pict_type == AV_PICTURE_TYPE_B) { |