hawkeye camera support(not tested)

framework/Inspectron.HawkEye/RTSP/Sdp/Connection.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Globalization;
+
+namespace Inspectron.HawkEye.RTSP.Sdp
+{
+    public abstract class Connection
+    {
+        public Connection()
+        {
+            //Default value from spec
+            NumberOfAddress = 1;
+        }
+
+        public string Host { get; set; }
+
+        /// <summary>
+        /// Gets or sets the number of address specifed in connection.
+        /// </summary>
+        /// <value>The number of address.</value>
+        //TODO handle it a different way (list of adress ?)
+        public int NumberOfAddress { get; set; }
+
+        public static Connection Parse(string value)
+        {
+            if(value ==null)
+                throw new ArgumentNullException("value");
+
+            string[] parts = value.Split(' ');
+
+            if (parts.Length != 3)
+                throw new FormatException("Value do not contain 3 parts as needed.");
+
+            if (parts[0] != "IN")
+                throw new NotSupportedException(string.Format(CultureInfo.InvariantCulture, "Net type {0} not suported", parts[0]));
+
+            switch (parts[1])
+            {
+                case "IP4":
+                    return ConnectionIP4.Parse(parts[2]);
+                case "IP6":
+                    return ConnectionIP6.Parse(parts[2]);
+                default:
+                    throw new NotSupportedException(string.Format(CultureInfo.InvariantCulture, "Address type {0} not suported", parts[1]));
+            }
+            
+        }
+    }
+}