The normal differential timestamps can't handle negative
differences, thus send a full packet header with an absolute
timestamp in these cases.
---
libavformat/rtmppkt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavformat/rtmppkt.c b/libavformat/rtmppkt.c
index f58f668..81621b1 100644
--- a/libavformat/rtmppkt.c
+++ b/libavformat/rtmppkt.c
@@ -313,7 +313,8 @@ int ff_rtmp_packet_write(URLContext *h, RTMPPacket *pkt,
//if channel_id = 0, this is first presentation of prev_pkt, send full hdr.
if (prev_pkt[pkt->channel_id].channel_id &&
- pkt->extra == prev_pkt[pkt->channel_id].extra) {
+ pkt->extra == prev_pkt[pkt->channel_id].extra &&
+ pkt->timestamp >= prev_pkt[pkt->channel_id].timestamp) {
if (pkt->type == prev_pkt[pkt->channel_id].type &&
pkt->size == prev_pkt[pkt->channel_id].size) {
mode = RTMP_PS_FOURBYTES;
--
1.7.9.4
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