public bool Contains(Rtp.RtpPacket rtpPacket) //相同序列号的消重
{
foreach (Rtp.RtpPacket rtp in packetsList)
{
if (rtp.SequenceNumber == rtpPacket.SequenceNumber)
{
return(true);
}
}
return(false);
}
public void Add(Rtp.RtpPacket packet)
{
lock (packetsList)
{
if (!Contains(packet))
{
packetsList.Add(packet);
}
}
//if(packet.Marker)
//{
// int i = 0;
// ToPcm();
//}
}
public string AsKey(IPv4Packet ipv4, UdpPacket udp, Voip.Rtp.RtpPacket rtp)
{
return(string.Format("{0}_{1}_{2}_{3}_{4}", ipv4.SourceAddress, ipv4.DestinationAddress, udp.SourcePort, udp.DestinationPort, rtp.SSRC));
}
private void Processing(Stream stream)
{
while (stream.CanRead && stream.Position < stream.Length)
{
GfpFrame frame = null;
try
{
frame = getNextFrame(stream);
}
catch (Exception ex)
{
LogHelper.Error("读取下一帧出现错误", ex);
continue;
}
if (frame != null && frame.IpPackets != null)
{
Metadata.BaseMetadata metadata = new Metadata.BaseMetadata(signalTime, frequency, frame);
IPv4Packet ipv4Packet = new IPv4Packet(new PacketDotNet.Utils.ByteArraySegment(frame.IpPackets));
if (ipv4Packet == null)
{
break;
}
if (ipv4Packet.Protocol == ProtocolType.Udp)
{
if (ipv4Packet.PayloadPacket == null)
{
continue;
}
UdpPacket udpPacket = ipv4Packet.PayloadPacket as UdpPacket;
if (udpPacket.Bytes[8] == 0x80)
{
Voip.Rtp.RtpPacket rtpPacket = new Voip.Rtp.RtpPacket(udpPacket);
string key = AsKey(ipv4Packet, udpPacket, rtpPacket);
switch (rtpPacket.PayloadType)
{
case 0: //PCMU/G711
case 4: //G723
case 8: //PCMA
case 9: //G722
case 18: //G729
if (Saver.Instance.Contains(key))
{
Saver.Instance.Add(key, rtpPacket);
if (Saver.Instance.Count(key) == Config.Instance.IsolatedCount)
{
LogHelper.Info(string.Format("发现新用户数据，五元组为{0}", key));
}
}
else
{
Saver.Instance.Create(key, rtpPacket, signalTime, frequency);
}
break;
default:
continue;
}
}
else
{
this.Agent?.Invoke(ipv4Packet, metadata);
}
}
else if (ipv4Packet.Protocol == ProtocolType.Tcp)
{
this.Agent?.Invoke(ipv4Packet, metadata);
}
else
{
this.Agent?.Invoke(ipv4Packet, metadata);
}
}
}
stream.Close();
stream.Dispose();
GC.GetTotalMemory(true);
}
public Rtp4629(RtpPacket packet) : base(packet)
{
this.ParseData(packet.DataPointer, 0u);
}