/// <summary>
/// Creates new RTP session.
/// </summary>
/// <param name="localEP">Local RTP end point.</param>
/// <param name="clock">RTP media clock.</param>
/// <returns>Returns created session.</returns>
/// <exception cref="ObjectDisposedException">Is raised when this class is Disposed and this method is accessed.</exception>
/// <exception cref="ArgumentNullException">Is raised when <b>localEP</b> or <b>clock</b> is null reference.</exception>
public RTP_Session CreateSession(RTP_Address localEP, RTP_Clock clock)
{
if (m_IsDisposed)
{
throw new ObjectDisposedException(this.GetType().Name);
}
if (localEP == null)
{
throw new ArgumentNullException("localEP");
}
if (clock == null)
{
throw new ArgumentNullException("clock");
}
RTP_Session session = new RTP_Session(this, localEP, clock);
session.Disposed += new EventHandler(delegate(object s, EventArgs e) {
m_pSessions.Remove((RTP_Session)s);
});
m_pSessions.Add(session);
OnSessionCreated(session);
return(session);
}
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="session">Owner RTP multimedia session.</param>
/// <param name="localEP">Local RTP end point.</param>
/// <param name="clock">RTP media clock.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>localEP</b>, <b>localEP</b> or <b>clock</b> is null reference.</exception>
internal RTP_Session(RTP_MultimediaSession session,RTP_Address localEP,RTP_Clock clock)
{
if(session == null){
throw new ArgumentNullException("session");
}
if(localEP == null){
throw new ArgumentNullException("localEP");
}
if(clock == null){
throw new ArgumentNullException("clock");
}
m_pSession = session;
m_pLocalEP = localEP;
m_pRtpClock = clock;
m_pLocalSources = new List<RTP_Source_Local>();
m_pTargets = new List<RTP_Address>();
m_pMembers = new Dictionary<uint,RTP_Source>();
m_pSenders = new Dictionary<uint,RTP_Source>();
m_pConflictingEPs = new Dictionary<string,DateTime>();
m_pPayloads = new KeyValueCollection<int,Codec>();
m_pUdpDataReceivers = new List<UDP_DataReceiver>();
m_pRtpSocket = new Socket(localEP.IP.AddressFamily,SocketType.Dgram,ProtocolType.Udp);
m_pRtpSocket.Bind(localEP.RtpEP);
m_pRtcpSocket = new Socket(localEP.IP.AddressFamily,SocketType.Dgram,ProtocolType.Udp);
m_pRtcpSocket.Bind(localEP.RtcpEP);
m_pRtcpTimer = new TimerEx();
m_pRtcpTimer.Elapsed += new System.Timers.ElapsedEventHandler(delegate(object sender,System.Timers.ElapsedEventArgs e){
SendRtcp();
});
m_pRtcpTimer.AutoReset = false;
}
/// <summary>
/// Determines whether the specified Object is equal to the current Object.
/// </summary>
/// <param name="obj">The Object to compare with the current Object.</param>
/// <returns>True if the specified Object is equal to the current Object; otherwise, false.</returns>
public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
if (obj is RTP_Address)
{
RTP_Address a = (RTP_Address)obj;
if (!a.IP.Equals(this.IP))
{
return(false);
}
if (a.DataPort != this.DataPort)
{
return(false);
}
if (a.ControlPort != this.ControlPort)
{
return(false);
}
}
else
{
return(false);
}
return(true);
}
/// <summary>
/// Removes specified target.
/// </summary>
/// <param name="target">Session remote target.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>target</b> is null reference.</exception>
/// <exception cref="ObjectDisposedException">Is raised when this class is Disposed and this method is accessed.</exception>
public void RemoveTarget(RTP_Address target)
{
if(target == null){
throw new ArgumentNullException("target");
}
if(m_IsDisposed){
throw new ObjectDisposedException(this.GetType().Name);
}
m_pTargets.Remove(target);
}
/// <summary>
/// Opens RTP session to the specified remote target.
/// </summary>
/// <remarks>Once RTP session opened, RTCP reports sent to that target and also each local sending stream data.</remarks>
/// <param name="target">Session remote target.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>target</b> is null reference.</exception>
/// <exception cref="ObjectDisposedException">Is raised when this class is Disposed and this method is accessed.</exception>
/// <exception cref="ArgumentException">Is raised when any of the arguments has invalid values.</exception>
public void AddTarget(RTP_Address target)
{
if(target == null){
throw new ArgumentNullException("target");
}
if(m_IsDisposed){
throw new ObjectDisposedException(this.GetType().Name);
}
if(m_pLocalEP.Equals(target)){
throw new ArgumentException("Argument 'target' value collapses with property 'LocalEP'.","target");
}
foreach(RTP_Address t in this.Targets){
if(t.Equals(target)){
throw new ArgumentException("Specified target already exists.","target");
}
}
m_pTargets.Add(target);
}
/// <summary>
/// Cleans up any resources being used.
/// </summary>
public void Dispose()
{
if(m_IsDisposed){
return;
}
m_IsDisposed = true;
foreach(UDP_DataReceiver receiver in m_pUdpDataReceivers){
receiver.Dispose();
}
m_pUdpDataReceivers = null;
if(m_pRtcpTimer != null){
m_pRtcpTimer.Dispose();
m_pRtcpTimer = null;
}
m_pSession = null;
m_pLocalEP = null;
m_pTargets = null;
foreach(RTP_Source_Local source in m_pLocalSources.ToArray()){
source.Dispose();
}
m_pLocalSources = null;
m_pRtcpSource = null;
foreach(RTP_Source source in m_pMembers.Values){
source.Dispose();
}
m_pMembers = null;
m_pSenders = null;
m_pConflictingEPs = null;
m_pRtpSocket.Close();
m_pRtpSocket = null;
m_pRtcpSocket.Close();
m_pRtcpSocket = null;
m_pUdpDataReceivers = null;
OnDisposed();
this.Disposed = null;
this.Closed = null;
this.NewSendStream = null;
this.NewReceiveStream = null;
}
/// <summary>
/// Creates new RTP session.
/// </summary>
/// <param name="localEP">Local RTP end point.</param>
/// <param name="clock">RTP media clock.</param>
/// <returns>Returns created session.</returns>
/// <exception cref="ObjectDisposedException">Is raised when this class is Disposed and this method is accessed.</exception>
/// <exception cref="ArgumentNullException">Is raised when <b>localEP</b> or <b>clock</b> is null reference.</exception>
public RTP_Session CreateSession(RTP_Address localEP,RTP_Clock clock)
{
if(m_IsDisposed){
throw new ObjectDisposedException(this.GetType().Name);
}
if(localEP == null){
throw new ArgumentNullException("localEP");
}
if(clock == null){
throw new ArgumentNullException("clock");
}
RTP_Session session = new RTP_Session(this,localEP,clock);
session.Disposed += new EventHandler(delegate(object s,EventArgs e){
m_pSessions.Remove((RTP_Session)s);
});
m_pSessions.Add(session);
OnSessionCreated(session);
return session;
}
