internal static RtpStream CreateStream(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes)
{
string sPT = sdes.GetPrivateExtension(Rtcp.PEP_PAYLOADTYPE);
PayloadType pt = (PayloadType)Enum.Parse(typeof(PayloadType), sPT);
// RtpStreamFec
string fecData = sdes.GetPrivateExtension(Rtcp.PEP_FEC);
if(fecData != null)
{
string[] args = fecData.Split(new char[]{':'});
ushort dataPxExp = ushort.Parse(args[0]);
ushort fecPxExp = ushort.Parse(args[1]);
if(fecPxExp == 0)
{
throw new ArgumentOutOfRangeException("fecPxExp", fecPxExp, "Must be >= 1");
}
// Frame based Fec
if(dataPxExp == 0)
{
return new RtpStreamFFec(rtpListener, ssrc, ipaddress, sdes, pt, fecPxExp);
}
else // Constant Fec
{
return new RtpStreamCFec(rtpListener, ssrc, ipaddress, sdes, pt, dataPxExp, fecPxExp);
}
}
// RtpStream
return new RtpStream(rtpListener, ssrc, ipaddress,sdes, pt);
}
internal static RtpStream CreateStream(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes)
{
string sPT = sdes.GetPrivateExtension(Rtcp.PEP_PAYLOADTYPE);
PayloadType pt = (PayloadType)Enum.Parse(typeof(PayloadType), sPT);
// RtpStreamFec
string fecData = sdes.GetPrivateExtension(Rtcp.PEP_FEC);
if (fecData != null)
{
string[] args = fecData.Split(new char[] { ':' });
ushort dataPxExp = ushort.Parse(args[0]);
ushort fecPxExp = ushort.Parse(args[1]);
if (fecPxExp == 0)
{
throw new ArgumentOutOfRangeException("fecPxExp", fecPxExp, "Must be >= 1");
}
// Frame based Fec
if (dataPxExp == 0)
{
return(new RtpStreamFFec(rtpListener, ssrc, ipaddress, sdes, pt, fecPxExp));
}
else // Constant Fec
{
return(new RtpStreamCFec(rtpListener, ssrc, ipaddress, sdes, pt, dataPxExp, fecPxExp));
}
}
// RtpStream
return(new RtpStream(rtpListener, ssrc, ipaddress, sdes, pt));
}
internal static RtpStream CreateStream2(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes)
{
string sPT = sdes.GetPrivateExtension(Rtcp.PEP_PAYLOADTYPE);
PayloadType pt = PayloadType.JPEG;
// RtpStream
return new RtpStream(rtpListener, ssrc, ipaddress, sdes, pt);
}
internal static RtpStream CreateStream2(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes)
{
string sPT = sdes.GetPrivateExtension(Rtcp.PEP_PAYLOADTYPE);
PayloadType pt = PayloadType.JPEG;
// RtpStream
return(new RtpStream(rtpListener, ssrc, ipaddress, sdes, pt));
}
internal RtpStreamCFec(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes, PayloadType pt, ushort dataPxExp, ushort fecPxExp)
: base(rtpListener, ssrc, ipaddress, sdes, pt)
{
pcFecType = 1;
this.dataPxExp = dataPxExp;
this.fecPxExp = fecPxExp;
SetDecoder();
InitializeDCRStorage();
}
internal RtpStream(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes, PayloadType pt)
{
Debug.Assert(rtpListener != null);
Debug.Assert(ssrc != 0);
Debug.Assert(sdes != null);
Debug.Assert(ipaddress != null);
this.returnBufferHandler = rtpListener.ReturnBufferCallback;
this.ssrc = ssrc;
this.pt = pt;
this.ipaddress = ipaddress;
properties = new SdesData(sdes);
InitializePerformanceCounters();
}
internal RtpStreamFec(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes, PayloadType pt)
: base(rtpListener, ssrc, ipaddress, sdes, pt)
{
this.getBufferHandler = rtpListener.GetBufferCallback;
}
internal RtpStream(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes, PayloadType pt)
{
Debug.Assert(rtpListener != null);
Debug.Assert(ssrc != 0);
Debug.Assert(sdes != null);
Debug.Assert(ipaddress != null);
this.returnBufferHandler = rtpListener.ReturnBufferCallback;
this.ssrc = ssrc;
this.pt = pt;
this.ipaddress = ipaddress;
properties = new SdesData(sdes);
InitializePerformanceCounters();
}
internal RtpStreamFFec(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes, PayloadType pt, ushort fecPxExp)
: base(rtpListener, ssrc, ipaddress, sdes, pt)
{
fecPercent = fecPxExp;
pcFecType = 2;
}
internal RtpStreamCFec(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes, PayloadType pt, ushort dataPxExp, ushort fecPxExp)
: base(rtpListener, ssrc, ipaddress, sdes, pt)
{
pcFecType = 1;
this.dataPxExp = dataPxExp;
this.fecPxExp = fecPxExp;
SetDecoder();
InitializeDCRStorage();
}
/// <summary>
/// Initialize the Rtcp/Rtp listeners and senders. See the primary constructor's summary
/// for an explanation of the "states" an RtpSession can be constructed in.
///
/// Performance note - it takes .6+ seconds to initialize the performance counter code in
/// the .Net framework (the first time per process). In the current code, that happens
/// during RtcpSender construction.
/// </summary>
private void InitializeNetwork()
{
if( receiveData )
{
if(participant != null && rtpTraffic)
{
rtpListener = new RtpListener(this);
}
// RtcpListener can create streams. A stream needs a valid RtpListener in order to
// return used packets, so start this object/thread after RtpListener.
rtcpListener = new RtcpListener(this);
}
if(participant != null)
{
// Set the participant's IP address
participant.SetIPAddress = Utility.GetLocalMulticastInterface();
// Get an ssrc for the local participant
uint ssrc = NextSSRC();
AddParticipant(ssrc, participant);
AddSsrcToIp(ssrc, participant.IPAddress);
rtcpSender = new RtcpSender(this);
}
}
/// <summary>
/// Constructs a frame for Receiving data
/// </summary>
public RtpFrame(uint packetsInFrame, uint timeStamp, RtpListener.ReturnBufferHandler returnBufferHandler, bool allowDuplicatePackets)
{
this.packetsInFrame = packetsInFrame;
this.timeStamp = timeStamp;
this.returnBufferHandler = returnBufferHandler;
this.allowDuplicatePackets = allowDuplicatePackets;
pool = new RtpPacket[packetsInFrame];
this.poolLength = (uint)pool.Length;
this.packetsInFrameIsSet = false;
}
/// <summary>
/// Constructs a frame for Receiving data
/// Defaults allowDuplicatePackets to false
/// </summary>
public RtpFrame(uint packetsInFrame, uint timeStamp, RtpListener.ReturnBufferHandler returnBufferHandler) :
this(packetsInFrame, timeStamp, returnBufferHandler, false){}
internal RtpStreamFec(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes, PayloadType pt)
: base(rtpListener, ssrc, ipaddress, sdes, pt)
{
this.getBufferHandler = rtpListener.GetBufferCallback;
}
internal RtpStreamFFec(RtpListener rtpListener, uint ssrc, string ipaddress, SdesData sdes, PayloadType pt, ushort fecPxExp)
: base(rtpListener, ssrc, ipaddress, sdes, pt)
{
fecPercent = fecPxExp;
pcFecType = 2;
}
