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689 lines
25 KiB
689 lines
25 KiB
/*
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Copyright (C) <2007-2016> <Kay Diefenthal>
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SatIp.RtspSample is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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SatIp.RtspSample is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SatIp.RtspSample. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Net;
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using System.Net.NetworkInformation;
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using System.Net.Sockets;
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using System.Text.RegularExpressions;
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using MediaBrowser.Model.Logging;
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namespace MediaBrowser.Server.Implementations.LiveTv.TunerHosts.SatIp.Rtsp
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{
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public class RtspSession : IDisposable
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{
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#region Private Fields
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private static readonly Regex RegexRtspSessionHeader = new Regex(@"\s*([^\s;]+)(;timeout=(\d+))?");
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private const int DefaultRtspSessionTimeout = 30; // unit = s
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private static readonly Regex RegexDescribeResponseSignalInfo = new Regex(@";tuner=\d+,(\d+),(\d+),(\d+),", RegexOptions.Singleline | RegexOptions.IgnoreCase);
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private string _address;
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private string _rtspSessionId;
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public string RtspSessionId
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{
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get { return _rtspSessionId; }
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set { _rtspSessionId = value; }
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}
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private int _rtspSessionTimeToLive = 0;
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private string _rtspStreamId;
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private int _clientRtpPort;
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private int _clientRtcpPort;
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private int _serverRtpPort;
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private int _serverRtcpPort;
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private int _rtpPort;
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private int _rtcpPort;
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private string _rtspStreamUrl;
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private string _destination;
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private string _source;
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private string _transport;
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private int _signalLevel;
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private int _signalQuality;
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private Socket _rtspSocket;
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private int _rtspSequenceNum = 1;
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private bool _disposed = false;
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private readonly ILogger _logger;
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#endregion
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#region Constructor
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public RtspSession(string address, ILogger logger)
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{
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if (string.IsNullOrWhiteSpace(address))
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{
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throw new ArgumentNullException("address");
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}
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_address = address;
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_logger = logger;
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_logger.Info("Creating RtspSession with url {0}", address);
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}
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~RtspSession()
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{
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Dispose(false);
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}
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#endregion
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#region Properties
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#region Rtsp
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public string RtspStreamId
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{
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get { return _rtspStreamId; }
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set { if (_rtspStreamId != value) { _rtspStreamId = value; OnPropertyChanged("RtspStreamId"); } }
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}
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public string RtspStreamUrl
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{
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get { return _rtspStreamUrl; }
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set { if (_rtspStreamUrl != value) { _rtspStreamUrl = value; OnPropertyChanged("RtspStreamUrl"); } }
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}
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public int RtspSessionTimeToLive
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{
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get
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{
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if (_rtspSessionTimeToLive == 0)
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_rtspSessionTimeToLive = DefaultRtspSessionTimeout;
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return _rtspSessionTimeToLive * 1000 - 20;
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}
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set { if (_rtspSessionTimeToLive != value) { _rtspSessionTimeToLive = value; OnPropertyChanged("RtspSessionTimeToLive"); } }
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}
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#endregion
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#region Rtp Rtcp
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/// <summary>
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/// The LocalEndPoint Address
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/// </summary>
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public string Destination
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{
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get
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{
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if (string.IsNullOrEmpty(_destination))
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{
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var result = "";
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var host = Dns.GetHostName();
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var hostentry = Dns.GetHostEntry(host);
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foreach (var ip in hostentry.AddressList.Where(ip => ip.AddressFamily == AddressFamily.InterNetwork))
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{
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result = ip.ToString();
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}
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_destination = result;
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}
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return _destination;
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}
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set
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{
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if (_destination != value)
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{
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_destination = value;
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OnPropertyChanged("Destination");
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}
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}
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}
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/// <summary>
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/// The RemoteEndPoint Address
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/// </summary>
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public string Source
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{
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get { return _source; }
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set
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{
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if (_source != value)
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{
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_source = value;
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OnPropertyChanged("Source");
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}
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}
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}
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/// <summary>
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/// The Media Data Delivery RemoteEndPoint Port if we use Unicast
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/// </summary>
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public int ServerRtpPort
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{
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get
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{
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return _serverRtpPort;
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}
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set { if (_serverRtpPort != value) { _serverRtpPort = value; OnPropertyChanged("ServerRtpPort"); } }
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}
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/// <summary>
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/// The Media Metadata Delivery RemoteEndPoint Port if we use Unicast
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/// </summary>
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public int ServerRtcpPort
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{
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get { return _serverRtcpPort; }
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set { if (_serverRtcpPort != value) { _serverRtcpPort = value; OnPropertyChanged("ServerRtcpPort"); } }
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}
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/// <summary>
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/// The Media Data Delivery LocalEndPoint Port if we use Unicast
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/// </summary>
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public int ClientRtpPort
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{
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get { return _clientRtpPort; }
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set { if (_clientRtpPort != value) { _clientRtpPort = value; OnPropertyChanged("ClientRtpPort"); } }
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}
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/// <summary>
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/// The Media Metadata Delivery LocalEndPoint Port if we use Unicast
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/// </summary>
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public int ClientRtcpPort
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{
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get { return _clientRtcpPort; }
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set { if (_clientRtcpPort != value) { _clientRtcpPort = value; OnPropertyChanged("ClientRtcpPort"); } }
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}
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/// <summary>
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/// The Media Data Delivery RemoteEndPoint Port if we use Multicast
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/// </summary>
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public int RtpPort
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{
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get { return _rtpPort; }
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set { if (_rtpPort != value) { _rtpPort = value; OnPropertyChanged("RtpPort"); } }
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}
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/// <summary>
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/// The Media Meta Delivery RemoteEndPoint Port if we use Multicast
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/// </summary>
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public int RtcpPort
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{
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get { return _rtcpPort; }
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set { if (_rtcpPort != value) { _rtcpPort = value; OnPropertyChanged("RtcpPort"); } }
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}
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#endregion
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public string Transport
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{
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get
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{
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if (string.IsNullOrEmpty(_transport))
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{
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_transport = "unicast";
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}
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return _transport;
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}
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set
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{
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if (_transport != value)
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{
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_transport = value;
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OnPropertyChanged("Transport");
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}
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}
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}
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public int SignalLevel
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{
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get { return _signalLevel; }
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set { if (_signalLevel != value) { _signalLevel = value; OnPropertyChanged("SignalLevel"); } }
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}
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public int SignalQuality
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{
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get { return _signalQuality; }
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set { if (_signalQuality != value) { _signalQuality = value; OnPropertyChanged("SignalQuality"); } }
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}
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#endregion
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#region Private Methods
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private void ProcessSessionHeader(string sessionHeader, string response)
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{
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if (!string.IsNullOrEmpty(sessionHeader))
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{
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var m = RegexRtspSessionHeader.Match(sessionHeader);
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if (!m.Success)
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{
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_logger.Error("Failed to tune, RTSP {0} response session header {1} format not recognised", response, sessionHeader);
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}
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_rtspSessionId = m.Groups[1].Captures[0].Value;
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_rtspSessionTimeToLive = m.Groups[3].Captures.Count == 1 ? int.Parse(m.Groups[3].Captures[0].Value) : DefaultRtspSessionTimeout;
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}
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}
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private void ProcessTransportHeader(string transportHeader)
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{
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if (!string.IsNullOrEmpty(transportHeader))
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{
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var transports = transportHeader.Split(',');
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foreach (var transport in transports)
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{
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if (transport.Trim().StartsWith("RTP/AVP"))
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{
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var sections = transport.Split(';');
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foreach (var section in sections)
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{
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var parts = section.Split('=');
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if (parts[0].Equals("server_port"))
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{
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var ports = parts[1].Split('-');
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_serverRtpPort = int.Parse(ports[0]);
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_serverRtcpPort = int.Parse(ports[1]);
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}
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else if (parts[0].Equals("destination"))
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{
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_destination = parts[1];
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}
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else if (parts[0].Equals("port"))
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{
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var ports = parts[1].Split('-');
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_rtpPort = int.Parse(ports[0]);
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_rtcpPort = int.Parse(ports[1]);
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}
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else if (parts[0].Equals("ttl"))
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{
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_rtspSessionTimeToLive = int.Parse(parts[1]);
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}
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else if (parts[0].Equals("source"))
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{
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_source = parts[1];
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}
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else if (parts[0].Equals("client_port"))
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{
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var ports = parts[1].Split('-');
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var rtp = int.Parse(ports[0]);
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var rtcp = int.Parse(ports[1]);
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//if (!rtp.Equals(_rtpPort))
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//{
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// Logger.Error("SAT>IP base: server specified RTP client port {0} instead of {1}", rtp, _rtpPort);
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//}
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//if (!rtcp.Equals(_rtcpPort))
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//{
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// Logger.Error("SAT>IP base: server specified RTCP client port {0} instead of {1}", rtcp, _rtcpPort);
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//}
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_rtpPort = rtp;
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_rtcpPort = rtcp;
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}
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}
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}
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}
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}
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}
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private void Connect()
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{
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_rtspSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
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var ip = IPAddress.Parse(_address);
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var rtspEndpoint = new IPEndPoint(ip, 554);
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_rtspSocket.Connect(rtspEndpoint);
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}
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private void Disconnect()
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{
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if (_rtspSocket != null && _rtspSocket.Connected)
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{
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_rtspSocket.Shutdown(SocketShutdown.Both);
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_rtspSocket.Close();
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}
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}
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private void SendRequest(RtspRequest request)
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{
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if (_rtspSocket == null)
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{
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Connect();
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}
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try
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{
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request.Headers.Add("CSeq", _rtspSequenceNum.ToString());
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_rtspSequenceNum++;
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byte[] requestBytes = request.Serialise();
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if (_rtspSocket != null)
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{
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var requestBytesCount = _rtspSocket.Send(requestBytes, requestBytes.Length, SocketFlags.None);
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if (requestBytesCount < 1)
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{
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}
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}
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}
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catch (Exception e)
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{
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_logger.Error(e.Message);
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}
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}
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private void ReceiveResponse(out RtspResponse response)
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{
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response = null;
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var responseBytesCount = 0;
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byte[] responseBytes = new byte[1024];
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try
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{
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responseBytesCount = _rtspSocket.Receive(responseBytes, responseBytes.Length, SocketFlags.None);
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response = RtspResponse.Deserialise(responseBytes, responseBytesCount);
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string contentLengthString;
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int contentLength = 0;
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if (response.Headers.TryGetValue("Content-Length", out contentLengthString))
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{
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contentLength = int.Parse(contentLengthString);
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if ((string.IsNullOrEmpty(response.Body) && contentLength > 0) || response.Body.Length < contentLength)
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{
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if (response.Body == null)
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{
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response.Body = string.Empty;
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}
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while (responseBytesCount > 0 && response.Body.Length < contentLength)
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{
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responseBytesCount = _rtspSocket.Receive(responseBytes, responseBytes.Length, SocketFlags.None);
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response.Body += System.Text.Encoding.UTF8.GetString(responseBytes, 0, responseBytesCount);
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}
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}
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}
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}
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catch (SocketException)
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{
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}
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}
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#endregion
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#region Public Methods
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public RtspStatusCode Setup(string query, string transporttype)
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{
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RtspRequest request;
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RtspResponse response;
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//_rtspClient = new RtspClient(_rtspDevice.ServerAddress);
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if ((_rtspSocket == null))
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{
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Connect();
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}
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if (string.IsNullOrEmpty(_rtspSessionId))
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{
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request = new RtspRequest(RtspMethod.Setup, string.Format("rtsp://{0}:{1}/?{2}", _address, 554, query), 1, 0);
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switch (transporttype)
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{
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case "multicast":
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request.Headers.Add("Transport", string.Format("RTP/AVP;multicast"));
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break;
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case "unicast":
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var activeTcpConnections = IPGlobalProperties.GetIPGlobalProperties().GetActiveTcpConnections();
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var usedPorts = new HashSet<int>();
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foreach (var connection in activeTcpConnections)
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{
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usedPorts.Add(connection.LocalEndPoint.Port);
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}
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for (var port = 40000; port <= 65534; port += 2)
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{
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if (!usedPorts.Contains(port) && !usedPorts.Contains(port + 1))
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{
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_clientRtpPort = port;
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_clientRtcpPort = port + 1;
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break;
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}
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}
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request.Headers.Add("Transport", string.Format("RTP/AVP;unicast;client_port={0}-{1}", _clientRtpPort, _clientRtcpPort));
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break;
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}
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}
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else
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{
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request = new RtspRequest(RtspMethod.Setup, string.Format("rtsp://{0}:{1}/?{2}", _address, 554, query), 1, 0);
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switch (transporttype)
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{
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case "multicast":
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request.Headers.Add("Transport", string.Format("RTP/AVP;multicast"));
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break;
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case "unicast":
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request.Headers.Add("Transport", string.Format("RTP/AVP;unicast;client_port={0}-{1}", _clientRtpPort, _clientRtcpPort));
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break;
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}
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}
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SendRequest(request);
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ReceiveResponse(out response);
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//if (_rtspClient.SendRequest(request, out response) != RtspStatusCode.Ok)
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//{
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// Logger.Error("Failed to tune, non-OK RTSP SETUP status code {0} {1}", response.StatusCode, response.ReasonPhrase);
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//}
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if (!response.Headers.TryGetValue("com.ses.streamID", out _rtspStreamId))
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{
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_logger.Error(string.Format("Failed to tune, not able to locate Stream ID header in RTSP SETUP response"));
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}
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string sessionHeader;
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if (!response.Headers.TryGetValue("Session", out sessionHeader))
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{
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_logger.Error(string.Format("Failed to tune, not able to locate Session header in RTSP SETUP response"));
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}
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ProcessSessionHeader(sessionHeader, "Setup");
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string transportHeader;
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if (!response.Headers.TryGetValue("Transport", out transportHeader))
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{
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_logger.Error(string.Format("Failed to tune, not able to locate Transport header in RTSP SETUP response"));
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}
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ProcessTransportHeader(transportHeader);
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return response.StatusCode;
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}
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public RtspStatusCode Play(string query)
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{
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if ((_rtspSocket == null))
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{
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Connect();
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}
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//_rtspClient = new RtspClient(_rtspDevice.ServerAddress);
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RtspResponse response;
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string data;
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if (string.IsNullOrEmpty(query))
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{
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data = string.Format("rtsp://{0}:{1}/stream={2}", _address,
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554, _rtspStreamId);
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}
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else
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{
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data = string.Format("rtsp://{0}:{1}/stream={2}?{3}", _address,
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554, _rtspStreamId, query);
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}
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var request = new RtspRequest(RtspMethod.Play, data, 1, 0);
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request.Headers.Add("Session", _rtspSessionId);
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SendRequest(request);
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ReceiveResponse(out response);
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//if (_rtspClient.SendRequest(request, out response) != RtspStatusCode.Ok)
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//{
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// Logger.Error("Failed to tune, non-OK RTSP SETUP status code {0} {1}", response.StatusCode, response.ReasonPhrase);
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//}
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//Logger.Info("RtspSession-Play : \r\n {0}", response);
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string sessionHeader;
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if (!response.Headers.TryGetValue("Session", out sessionHeader))
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{
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_logger.Error(string.Format("Failed to tune, not able to locate Session header in RTSP Play response"));
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}
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ProcessSessionHeader(sessionHeader, "Play");
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string rtpinfoHeader;
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if (!response.Headers.TryGetValue("RTP-Info", out rtpinfoHeader))
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{
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_logger.Error(string.Format("Failed to tune, not able to locate Rtp-Info header in RTSP Play response"));
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}
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return response.StatusCode;
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}
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public RtspStatusCode Options()
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{
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if ((_rtspSocket == null))
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{
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Connect();
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}
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//_rtspClient = new RtspClient(_rtspDevice.ServerAddress);
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RtspRequest request;
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RtspResponse response;
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if (string.IsNullOrEmpty(_rtspSessionId))
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{
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request = new RtspRequest(RtspMethod.Options, string.Format("rtsp://{0}:{1}/", _address, 554), 1, 0);
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}
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else
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{
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request = new RtspRequest(RtspMethod.Options, string.Format("rtsp://{0}:{1}/", _address, 554), 1, 0);
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request.Headers.Add("Session", _rtspSessionId);
|
|
}
|
|
SendRequest(request);
|
|
ReceiveResponse(out response);
|
|
//if (_rtspClient.SendRequest(request, out response) != RtspStatusCode.Ok)
|
|
//{
|
|
// Logger.Error("Failed to tune, non-OK RTSP SETUP status code {0} {1}", response.StatusCode, response.ReasonPhrase);
|
|
//}
|
|
//Logger.Info("RtspSession-Options : \r\n {0}", response);
|
|
string sessionHeader;
|
|
if (!response.Headers.TryGetValue("Session", out sessionHeader))
|
|
{
|
|
_logger.Error(string.Format("Failed to tune, not able to locate session header in RTSP Options response"));
|
|
}
|
|
ProcessSessionHeader(sessionHeader, "Options");
|
|
string optionsHeader;
|
|
if (!response.Headers.TryGetValue("Public", out optionsHeader))
|
|
{
|
|
_logger.Error(string.Format("Failed to tune, not able to Options header in RTSP Options response"));
|
|
}
|
|
return response.StatusCode;
|
|
}
|
|
|
|
public RtspStatusCode Describe(out int level, out int quality)
|
|
{
|
|
if ((_rtspSocket == null))
|
|
{
|
|
Connect();
|
|
}
|
|
//_rtspClient = new RtspClient(_rtspDevice.ServerAddress);
|
|
RtspRequest request;
|
|
RtspResponse response;
|
|
level = 0;
|
|
quality = 0;
|
|
|
|
if (string.IsNullOrEmpty(_rtspSessionId))
|
|
{
|
|
request = new RtspRequest(RtspMethod.Describe, string.Format("rtsp://{0}:{1}/", _address, 554), 1, 0);
|
|
request.Headers.Add("Accept", "application/sdp");
|
|
|
|
}
|
|
else
|
|
{
|
|
request = new RtspRequest(RtspMethod.Describe, string.Format("rtsp://{0}:{1}/stream={2}", _address, 554, _rtspStreamId), 1, 0);
|
|
request.Headers.Add("Accept", "application/sdp");
|
|
request.Headers.Add("Session", _rtspSessionId);
|
|
}
|
|
SendRequest(request);
|
|
ReceiveResponse(out response);
|
|
//if (_rtspClient.SendRequest(request, out response) != RtspStatusCode.Ok)
|
|
//{
|
|
// Logger.Error("Failed to tune, non-OK RTSP Describe status code {0} {1}", response.StatusCode, response.ReasonPhrase);
|
|
//}
|
|
//Logger.Info("RtspSession-Describe : \r\n {0}", response);
|
|
string sessionHeader;
|
|
if (!response.Headers.TryGetValue("Session", out sessionHeader))
|
|
{
|
|
_logger.Error(string.Format("Failed to tune, not able to locate session header in RTSP Describe response"));
|
|
}
|
|
ProcessSessionHeader(sessionHeader, "Describe");
|
|
var m = RegexDescribeResponseSignalInfo.Match(response.Body);
|
|
if (m.Success)
|
|
{
|
|
|
|
//isSignalLocked = m.Groups[2].Captures[0].Value.Equals("1");
|
|
level = int.Parse(m.Groups[1].Captures[0].Value) * 100 / 255; // level: 0..255 => 0..100
|
|
quality = int.Parse(m.Groups[3].Captures[0].Value) * 100 / 15; // quality: 0..15 => 0..100
|
|
|
|
}
|
|
/*
|
|
v=0
|
|
o=- 1378633020884883 1 IN IP4 192.168.2.108
|
|
s=SatIPServer:1 4
|
|
t=0 0
|
|
a=tool:idl4k
|
|
m=video 52780 RTP/AVP 33
|
|
c=IN IP4 0.0.0.0
|
|
b=AS:5000
|
|
a=control:stream=4
|
|
a=fmtp:33 ver=1.0;tuner=1,0,0,0,12344,h,dvbs2,,off,,22000,34;pids=0,100,101,102,103,106
|
|
=sendonly
|
|
*/
|
|
|
|
|
|
return response.StatusCode;
|
|
}
|
|
|
|
public RtspStatusCode TearDown()
|
|
{
|
|
if ((_rtspSocket == null))
|
|
{
|
|
Connect();
|
|
}
|
|
//_rtspClient = new RtspClient(_rtspDevice.ServerAddress);
|
|
RtspResponse response;
|
|
|
|
var request = new RtspRequest(RtspMethod.Teardown, string.Format("rtsp://{0}:{1}/stream={2}", _address, 554, _rtspStreamId), 1, 0);
|
|
request.Headers.Add("Session", _rtspSessionId);
|
|
SendRequest(request);
|
|
ReceiveResponse(out response);
|
|
//if (_rtspClient.SendRequest(request, out response) != RtspStatusCode.Ok)
|
|
//{
|
|
// Logger.Error("Failed to tune, non-OK RTSP Teardown status code {0} {1}", response.StatusCode, response.ReasonPhrase);
|
|
//}
|
|
return response.StatusCode;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Public Events
|
|
|
|
public event PropertyChangedEventHandler PropertyChanged;
|
|
|
|
#endregion
|
|
|
|
#region Protected Methods
|
|
|
|
protected void OnPropertyChanged(string name)
|
|
{
|
|
//var handler = PropertyChanged;
|
|
//if (handler != null)
|
|
//{
|
|
// handler(this, new PropertyChangedEventArgs(name));
|
|
//}
|
|
}
|
|
|
|
#endregion
|
|
|
|
public void Dispose()
|
|
{
|
|
Dispose(true);
|
|
GC.SuppressFinalize(this);//Disconnect();
|
|
}
|
|
|
|
protected virtual void Dispose(bool disposing)
|
|
{
|
|
if (!_disposed)
|
|
{
|
|
if (disposing)
|
|
{
|
|
TearDown();
|
|
Disconnect();
|
|
}
|
|
}
|
|
_disposed = true;
|
|
}
|
|
}
|
|
}
|