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I am trying to encrypt Sipdroid, and to do that I have to encrypt the the RTP packet after it gets the encoded audio payload. I am using this function in RTP packet class:

public byte[] getPayload() {
    int header_len = getHeaderLength();
    int len = packet_len - header_len;

    byte[] payload = new byte[len];

    for (int i = 0; i < len; i++)
        payload[i] = packet[header_len + i];

    return payload;
}

The problem is that I cannot find where the rtp packet class is getting the payload as the RTP runs over UDP. I have gone through the UDP socket class but it is not there.

I think one way could be to get the datagram payload from the rtp packet and encrypt it.

Where is the RTP packet class getting its payload?

jww
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johnny
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1 Answers1

1

Try using 

RTPPacket packet;
byte payload[] = packet.getpayload;

it will return you the RTPpayload in the payload variable

user3503709
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