void RRGenerationHandler::handleSR(std::shared_ptr<dataPacket> packet) {
RtcpHeader *chead = reinterpret_cast<RtcpHeader*>(packet->data);
auto rr_packet_pair = rr_info_map_.find(chead->getSSRC());
if (rr_packet_pair == rr_info_map_.end()) {
ELOG_DEBUG("%s message: handleRtpPacket ssrc not found, ssrc: %u", connection_->toLog(), chead->getSSRC());
return;
}
std::shared_ptr<RRPackets> selected_packet_info = rr_packet_pair->second;
selected_packet_info->last_sr_mid_ntp = chead->get32MiddleNtp();
selected_packet_info->last_sr_ts = packet->received_time_ms;
uint32_t expected = selected_packet_info->extended_seq - selected_packet_info->base_seq + 1;
selected_packet_info->lost = expected - selected_packet_info->packets_received;
uint8_t fraction = 0;
uint32_t expected_interval = expected - selected_packet_info->expected_prior;
selected_packet_info->expected_prior = expected;
uint32_t received_interval = selected_packet_info->packets_received - selected_packet_info->received_prior;
selected_packet_info->received_prior = selected_packet_info->packets_received;
uint32_t lost_interval = expected_interval - received_interval;
if (expected_interval != 0 && lost_interval > 0) {
fraction = (lost_interval << 8) / expected_interval;
}
selected_packet_info->frac_lost = fraction;
if (!use_timing_) {
sendRR(selected_packet_info);
}
}
void RtcpRrGenerator::handleSr(std::shared_ptr<dataPacket> packet) {
RtcpHeader* chead = reinterpret_cast<RtcpHeader*>(packet->data);
if (ssrc_ != chead->getSSRC()) {
ELOG_DEBUG("message: handleRtpPacket ssrc not found, ssrc: %u", chead->getSSRC());
return;
}
rr_info_.last_sr_mid_ntp = chead->get32MiddleNtp();
rr_info_.last_sr_ts = packet->received_time_ms;
}
