/// <summary>
/// Default constructor.
/// </summary>
/// <param name="stream">RTP send stream.</param>
public RTP_SendStreamEventArgs(RTP_SendStream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
m_pStream = stream;
}
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="stream">RTP send stream.</param>
public RTP_SendStreamEventArgs(RTP_SendStream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
m_pStream = stream;
}
/// <summary>
/// Creates RTP send stream for this source.
/// </summary>
/// <exception cref="InvalidOperationException">Is raised when this method is called more than 1 times(source already created).</exception>
internal void CreateStream()
{
if (m_pStream != null)
{
throw new InvalidOperationException("Stream is already created.");
}
m_pStream = new RTP_SendStream(this);
m_pStream.Disposed += delegate
{
m_pStream = null;
Dispose();
};
SetState(RTP_SourceState.Active);
}
/// <summary>
/// Sends specified RTP packet to the session remote party.
/// </summary>
/// <param name="stream">RTP packet sending stream.</param>
/// <param name="packet">RTP packet.</param>
/// <returns>Returns packet size in bytes.</returns>
/// <exception cref="ObjectDisposedException">Is raised when this class is Disposed and this method is accessed.</exception>
/// <exception cref="ArgumentNullException">Is raised when <b>stream</b> or <b>packet</b> is null reference.</exception>
internal int SendRtpPacket(RTP_SendStream stream, RTP_Packet packet)
{
if (m_IsDisposed)
{
throw new ObjectDisposedException(GetType().Name);
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (packet == null)
{
throw new ArgumentNullException("packet");
}
// Check that we are in members table (because SSRC has timed out), add itself to senders table.
lock (m_pMembers)
{
if (!m_pMembers.ContainsKey(stream.Source.SSRC))
{
m_pMembers.Add(stream.Source.SSRC, stream.Source);
}
}
// If we are not in sender table (because SSRC has timed out), add itself to senders table.
lock (m_pSenders)
{
if (!m_pSenders.ContainsKey(stream.Source.SSRC))
{
m_pSenders.Add(stream.Source.SSRC, stream.Source);
}
}
byte[] packetBytes = new byte[m_MTU];
int count = 0;
packet.ToByte(packetBytes, ref count);
// Send packet to each remote target.
foreach (RTP_Address target in Targets)
{
try
{
m_pRtpSocket.SendTo(packetBytes, count, SocketFlags.None, target.RtpEP);
m_RtpPacketsSent++;
m_RtpBytesSent += packetBytes.Length;
}
catch
{
m_RtpFailedTransmissions++;
}
}
return count;
}
/// <summary>
/// Raises <b>NewSendStream</b> event.
/// </summary>
/// <param name="stream">New send stream.</param>
private void OnNewSendStream(RTP_SendStream stream)
{
if (NewSendStream != null)
{
NewSendStream(this, new RTP_SendStreamEventArgs(stream));
}
}
/// <summary>
/// Creates RTP send stream for this source.
/// </summary>
/// <exception cref="InvalidOperationException">Is raised when this method is called more than 1 times(source already created).</exception>
internal void CreateStream()
{
if (m_pStream != null)
{
throw new InvalidOperationException("Stream is already created.");
}
m_pStream = new RTP_SendStream(this);
m_pStream.Disposed += delegate
{
m_pStream = null;
Dispose();
};
SetState(RTP_SourceState.Active);
}
