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Code Issues Releases Wiki Activity

Rtc2Rtmp: Using rtp timestamp to distinguish different video frame (#2721)

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john 2021-11-09 07:35:00 +08:00 • committed by GitHub
parent 1f4dad024e
commit 878833bb95
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2 changed files with 8 additions and 3 deletions
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8
trunk/src/app/srs_app_rtc_source.cpp
View file

@ -1437,6 +1437,7 @@ srs_error_t SrsRtmpFromRtcBridger::packet_video(SrsRtpPacket* src)
cache_video_pkts_[index].pkt = pkt;
cache_video_pkts_[index].sn = pkt->header.get_sequence();
cache_video_pkts_[index].ts = pkt->get_avsync_time();
cache_video_pkts_[index].rtp_ts = pkt->header.get_timestamp();
// check whether to recovery lost packet and can construct a video frame
if (lost_sn_ == pkt->header.get_sequence()) {
@ -1525,6 +1526,7 @@ srs_error_t SrsRtmpFromRtcBridger::packet_video_key_frame(SrsRtpPacket* pkt)
cache_video_pkts_[index].pkt = pkt;
cache_video_pkts_[index].sn = pkt->header.get_sequence();
cache_video_pkts_[index].ts = pkt->get_avsync_time();
cache_video_pkts_[index].rtp_ts = pkt->header.get_timestamp();
int32_t sn = lost_sn_;
uint16_t tail_sn = 0;
@ -1622,6 +1624,7 @@ srs_error_t SrsRtmpFromRtcBridger::packet_video_rtmp(const uint16_t start, const
cache_video_pkts_[index].in_use = false;
cache_video_pkts_[index].pkt = NULL;
cache_video_pkts_[index].ts = 0;
cache_video_pkts_[index].rtp_ts = 0;
cache_video_pkts_[index].sn = 0;
SrsRtpFUAPayload2* fua_payload = dynamic_cast<SrsRtpFUAPayload2*>(pkt->payload());
@ -1692,7 +1695,7 @@ srs_error_t SrsRtmpFromRtcBridger::packet_video_rtmp(const uint16_t start, const
int32_t SrsRtmpFromRtcBridger::find_next_lost_sn(uint16_t current_sn, uint16_t& end_sn)
{
uint32_t last_ts = cache_video_pkts_[cache_index(header_sn_)].ts;
uint32_t last_rtp_ts = cache_video_pkts_[cache_index(header_sn_)].rtp_ts;
for (int i = 0; i < s_cache_size; ++i) {
uint16_t lost_sn = current_sn + i;
int index = cache_index(lost_sn);
@ -1701,7 +1704,7 @@ int32_t SrsRtmpFromRtcBridger::find_next_lost_sn(uint16_t current_sn, uint16_t&
return lost_sn;
}
//check time first, avoid two small frame mixed case decode fail
if (last_ts != cache_video_pkts_[index].ts) {
if (last_rtp_ts != cache_video_pkts_[index].rtp_ts) {
end_sn = lost_sn - 1;
return -1;
}
@ -1724,6 +1727,7 @@ void SrsRtmpFromRtcBridger::clear_cached_video()
srs_freep(cache_video_pkts_[i].pkt);
cache_video_pkts_[i].sn = 0;
cache_video_pkts_[i].ts = 0;
cache_video_pkts_[i].rtp_ts = 0;
cache_video_pkts_[i].in_use = false;
}
}

3
trunk/src/app/srs_app_rtc_source.hpp
View file

@ -300,6 +300,7 @@ private:
bool in_use;
uint16_t sn;
uint32_t ts;
uint32_t rtp_ts;
SrsRtpPacket* pkt;
};
const static uint16_t s_cache_size = 512;
@ -325,7 +326,7 @@ private:
int32_t find_next_lost_sn(uint16_t current_sn, uint16_t& end_sn);
void clear_cached_video();
inline uint16_t cache_index(uint16_t current_sn) {
return current_sn%s_cache_size;
return current_sn % s_cache_size;
}
bool check_frame_complete(const uint16_t start, const uint16_t end);
};