[FFmpeg-cvslog] avformat/rtpdec: Fix negative missed packets in warning message

[Limin Wang]

ffmpeg | branch: master | Limin Wang <lance.lmwang at gmail.com> | Mon Jan 17 13:59:13 2022 +0800| [d9f05bea5cc7a8c4bb0569eecbe24a26def7f476] | committer: Limin Wang

avformat/rtpdec: Fix negative missed packets in warning message

Signed-off-by: Limin Wang <lance.lmwang at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d9f05bea5cc7a8c4bb0569eecbe24a26def7f476
---

 libavformat/rtpdec.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/libavformat/rtpdec.c b/libavformat/rtpdec.c
index 20fe2b82d7..f285a41cf4 100644
--- a/libavformat/rtpdec.c
+++ b/libavformat/rtpdec.c
@@ -835,9 +835,14 @@ static int rtp_parse_queued_packet(RTPDemuxContext *s, AVPacket *pkt)
     if (s->queue_len <= 0)
         return -1;
 
-    if (!has_next_packet(s))
+    if (!has_next_packet(s)) {
+        int pkt_missed  = s->queue->seq - s->seq - 1;
+
+        if (pkt_missed < 0)
+            pkt_missed += UINT16_MAX;
         av_log(s->ic, AV_LOG_WARNING,
-               "RTP: missed %d packets\n", s->queue->seq - s->seq - 1);
+               "RTP: missed %d packets\n", pkt_missed);
+    }
 
     /* Parse the first packet in the queue, and dequeue it */
     rv   = rtp_parse_packet_internal(s, pkt, s->queue->buf, s->queue->len);