avformat/utils: fix dts from pts code in compute_pkt_fields() during ascending delay

[ffmpeg] / libavformat / utils.c

diff --git a/libavformat/utils.c b/libavformat/utils.c
index 5f48de12474b95383b8939a302c1846010b9c65f..f4ae8b4f58dfaa39af5efcee18cbbe4558b249a1 100644 (file)
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1200,12 +1200,13 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
         }
     }
 
-    if (pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY && has_decode_delay_been_guessed(st)) {
+    if (pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY) {
         st->pts_buffer[0] = pkt->pts;
         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]);
 
-        pkt->dts = select_from_pts_buffer(st, st->pts_buffer, pkt->dts);
+        if(has_decode_delay_been_guessed(st))
+            pkt->dts = select_from_pts_buffer(st, st->pts_buffer, pkt->dts);
     }
     // We skipped it above so we try here.
     if (!onein_oneout)