Apps Multicast Receive

[jasleen]

I have been writing a RTSP streaming app in eclipse for android.
Its a RTSP Streaming client.

I am able to do the handshaking i.e am able to receive responses for DESCRIBE, SETUP, PLAY commands.

I am receiving the data in multicast mode.

The problem is that I am unable to receive the data(video) packets thereafter.

Following is the code i have used to receive multicast data

wifi = (WifiManager) getSystemService(getApplicationContext().WIFI_SERVICE);

mLock = wifi.createMulticastLock("mylock");
mLock.setReferenceCounted(true);
mLock.acquire();

MulticastSocket sock;
InetAddress sessAddr = netAddress.getByName("234.2.128.12");
sock = new MulticastSocket(1100);//48180);

byte b = 64;
sock.setTTL(b);
sock.joinGroup(sessAddr);


byte[] byData = new byte[500];
DatagramPacket pack = new DatagramPacket(byData, 500);

sock.receive(pack);

The code hangs at receive call.
Plus there are following tags in manifest xml

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />



Please suggest.