/// <summary>
/// Gets the RTCP compound packet containing the RTCP reports we send.
/// </summary>
/// <returns>An RTCP compound packet.</returns>
private RTCPCompoundPacket GetRtcpReport()
{
ReceptionReportSample rr = (m_receptionReport != null)
? m_receptionReport.GetSample(DateTimeToNtpTimestamp32(DateTime.Now))
: null;
var sdesReport = new RTCPSDesReport(Ssrc, Cname);
if (PacketsSentCount > m_previousPacketsSentCount)
{
// If we have sent a packet since the last report then we send an RTCP Sender Report.
var senderReport = new RTCPSenderReport(Ssrc, LastNtpTimestampSent, LastRtpTimestampSent,
PacketsSentCount, OctetsSentCount, (rr != null) ? new List <ReceptionReportSample> {
rr
} : null);
return(new RTCPCompoundPacket(senderReport, sdesReport));
}
else
{
// If we have NOT sent a packet since the last report then we send an RTCP Receiver Report.
if (rr != null)
{
var receiverReport = new RTCPReceiverReport(Ssrc, new List <ReceptionReportSample> {
rr
});
return(new RTCPCompoundPacket(receiverReport, sdesReport));
}
else
{
var receiverReport = new RTCPReceiverReport(Ssrc, null);
return(new RTCPCompoundPacket(receiverReport, sdesReport));
}
}
}
/// <summary>
/// Create a new RTCP Sender Report from a serialised byte array.
/// </summary>
/// <param name="packet">The byte array holding the serialised sender report.</param>
public RTCPSenderReport(byte[] packet)
{
if (packet.Length < MIN_PACKET_SIZE)
{
throw new ApplicationException("The packet did not contain the minimum number of bytes for an RTCPSenderReport packet.");
}
Header = new RTCPHeader(packet);
ReceptionReports = new List <ReceptionReportSample>();
if (BitConverter.IsLittleEndian)
{
SSRC = NetConvert.DoReverseEndian(BitConverter.ToUInt32(packet, 4));
NtpTimestamp = NetConvert.DoReverseEndian(BitConverter.ToUInt64(packet, 8));
RtpTimestamp = NetConvert.DoReverseEndian(BitConverter.ToUInt32(packet, 16));
PacketCount = NetConvert.DoReverseEndian(BitConverter.ToUInt32(packet, 20));
OctetCount = NetConvert.DoReverseEndian(BitConverter.ToUInt32(packet, 24));
}
else
{
SSRC = BitConverter.ToUInt32(packet, 4);
NtpTimestamp = BitConverter.ToUInt64(packet, 8);
RtpTimestamp = BitConverter.ToUInt32(packet, 16);
PacketCount = BitConverter.ToUInt32(packet, 20);
OctetCount = BitConverter.ToUInt32(packet, 24);
}
int rrIndex = 28;
for (int i = 0; i < Header.ReceptionReportCount; i++)
{
var rr = new ReceptionReportSample(packet.Skip(rrIndex + i * ReceptionReportSample.PAYLOAD_SIZE).ToArray());
ReceptionReports.Add(rr);
}
}
/// <summary>
/// Gets the RTCP compound packet containing the RTCP reports we send.
/// </summary>
/// <returns>An RTCP compound packet.</returns>
private RTCPCompoundPacket GetRtcpReport()
{
ReceptionReportSample rr = (m_receptionReport != null) ? m_receptionReport.GetSample(DateTimeToNtpTimestamp32(DateTime.Now)) : null;
var senderReport = new RTCPSenderReport(Ssrc, LastNtpTimestampSent, LastRtpTimestampSent, PacketsSentCount, OctetsSentCount, (rr != null) ? new List <ReceptionReportSample> {
rr
} : null);
var sdesReport = new RTCPSDesReport(Ssrc, Cname);
return(new RTCPCompoundPacket(senderReport, sdesReport));
}