public void addSR()
{
enqueueCommonReportPrefix(RTCPConstants.RTCP_PT_SR, _stream.SSRC(),
5 /* extra words in a SR */);
// Now, add the 'sender info' for our sink
// Insert the NTP and RTP timestamps for the 'wallclock time':
TimeVal timeNow = new TimeVal();
RTPTime.GetTimestamp(ref timeNow);
_fOutBuf.WriteWord((uint)(timeNow.tv_sec + 0x83AA7E80));
// NTP timestamp most-significant word (1970 epoch -> 1900 epoch)
double fractionalPart = (timeNow.tv_usec / 15625.0) * 0x04000000; // 2^32/10^6
_fOutBuf.WriteWord((uint)(fractionalPart + 0.5));
// NTP timestamp least-significant word
uint rtpTimestamp = _stream.ConvertToRTPTimestamp(timeNow);
_fOutBuf.WriteWord(rtpTimestamp); // RTP ts
// Insert the packet and byte counts:
uint packetCount = _stream.PacketCount() - _session.PacketsCount;
uint octetCount = _stream.OctetCount() - _session.OctetCount;
_fOutBuf.WriteWord(packetCount);
_fOutBuf.WriteWord(octetCount);
if (_logger.IsDebugEnabled)
{
_logger.Debug("Sending report : {0}.{1} packet {2} octet {3} Sequence {4}", timeNow.tv_sec + 0x83AA7E80,
(uint)(fractionalPart + 0.5), packetCount, octetCount, _stream.CurrentSeqNo());
}
}
public bool ParseReport(RTCPPacket packet, RTPStream stream, IPEndPoint fromAddress)
{
uint reportBlocksSize = (uint)(packet.ReportCount * (6 * 4));
int length = (int)packet.Reader.BaseStream.Length - (int)packet.Reader.BaseStream.Position;
if (length < reportBlocksSize)
{
return(false);
}
for (int i = 0; i < packet.ReportCount; ++i)
{
uint senderSSRC = unchecked ((uint)IPAddress.NetworkToHostOrder(packet.Reader.ReadInt32()));
if (_logger.IsTraceEnabled)
{
_logger.Trace("\tSSRC/CSRC: {0:x8}", packet.SenderSSRC);
}
// We care only about reports about our own transmission, not others'
if (senderSSRC == stream.SSRC())
{
var RR = new RTCPRRRecord()
{
SenderSSRC = senderSSRC,
LossStats = unchecked ((uint)IPAddress.NetworkToHostOrder(packet.Reader.ReadInt32())),
HighestReceived = unchecked ((uint)IPAddress.NetworkToHostOrder(packet.Reader.ReadInt32())),
Jitter = unchecked ((uint)IPAddress.NetworkToHostOrder(packet.Reader.ReadInt32())),
TimeLastSR = unchecked ((uint)IPAddress.NetworkToHostOrder(packet.Reader.ReadInt32())),
TimeSinceLastSR = unchecked ((uint)IPAddress.NetworkToHostOrder(packet.Reader.ReadInt32()))
};
stream.Transsmitions.noteIncomingRR(RR.SenderSSRC, fromAddress,
RR.LossStats,
RR.HighestReceived,
RR.Jitter,
RR.TimeLastSR,
RR.TimeSinceLastSR);
RRRecords.Add(RR);
}
}
return(true);
}
