diff --git a/libavformat/utils.c b/libavformat/utils.c
index 613de23f1b..51cad25ab9 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -898,8 +898,6 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
 
     if(pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY){
         st->pts_buffer[0]= pkt->pts;
-        for(i=1; i<delay+1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)
-            st->pts_buffer[i]= (i-delay-1) * pkt->duration;
         for(i=0; i<delay && st->pts_buffer[i] > st->pts_buffer[i+1]; i++)
             FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i+1]);
         if(pkt->dts == AV_NOPTS_VALUE)