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authorMichael Niedermayer <michaelni@gmx.at>2014-06-18 04:18:40 +0200
committerMichael Niedermayer <michaelni@gmx.at>2014-06-18 04:18:40 +0200
commitc932f12806d28d8c287002807638b338e1d84dd3 (patch)
tree6b636c698f5dff725b230df7e62566b84a3153a2
parent0608bc65025a29b2ec56aa17dd76d76ed730be11 (diff)
downloadffmpeg-c932f12806d28d8c287002807638b338e1d84dd3.tar.gz
avcodec/cavsdec: simplify % 512 operations
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavcodec/cavsdec.c6
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) {