Examples with RtpPacket local.net.RtpPacket used on opensource projects

Example 1 with RtpPacket

use of local.net.RtpPacket in project bigbluebutton by bigbluebutton.

the class RtpStreamSender method start.

public void start() {
    packetBuffer = new byte[transcoder.getOutgoingEncodedFrameSize() + RTP_HEADER_SIZE];
    rtpPacket = new RtpPacket(packetBuffer, 0);
    rtpPacket.setPayloadType(transcoder.getCodecId());
    startPayloadPos = rtpPacket.getHeaderLength();
    sequenceNum = 0;
    timestamp = 0;
}

Example 2 with RtpPacket

use of local.net.RtpPacket in project bigbluebutton by bigbluebutton.

the class RtpStreamReceiver method receiveRtpPackets.

public void receiveRtpPackets() {
    int packetReceivedCounter = 0;
    int internalBufferLength = payloadLength + RTP_HEADER_SIZE;
    while (receivePackets) {
        try {
            byte[] internalBuffer = new byte[internalBufferLength];
            RtpPacket rtpPacket = new RtpPacket(internalBuffer, 0);
            rtpSocket.receive(rtpPacket);
            packetReceivedCounter++;
            processReceivedPacket(rtpPacket);
        } catch (IOException e) {
            log.error("IOException while receiving rtp packets.");
            receivePackets = false;
        }
    }
    closeSocket();
    log.debug("Rtp Receiver stopped.");
    log.debug("Packet Received = " + packetReceivedCounter + ".");
}

Example 3 with RtpPacket

use of local.net.RtpPacket in project bigbluebutton by bigbluebutton.

the class RtpStreamSender method queueSipDtmfDigits.

public void queueSipDtmfDigits(String dtmfDigits) {
    byte[] dtmfbuf = new byte[transcoder.getOutgoingEncodedFrameSize() + RTP_HEADER_SIZE];
    RtpPacket dtmfpacket = new RtpPacket(dtmfbuf, 0);
    dtmfpacket.setPayloadType(dtmf2833Type);
    dtmfpacket.setPayloadLength(transcoder.getOutgoingEncodedFrameSize());
    byte[] blankbuf = new byte[transcoder.getOutgoingEncodedFrameSize() + RTP_HEADER_SIZE];
    RtpPacket blankpacket = new RtpPacket(blankbuf, 0);
    blankpacket.setPayloadType(transcoder.getCodecId());
    blankpacket.setPayloadLength(transcoder.getOutgoingEncodedFrameSize());
    for (int d = 0; d < dtmfDigits.length(); d++) {
        char digit = dtmfDigits.charAt(d);
        if (digit == '*') {
            dtmfbuf[startPayloadPos] = 10;
        } else if (digit == '#') {
            dtmfbuf[startPayloadPos] = 11;
        } else if (digit >= 'A' && digit <= 'D') {
            dtmfbuf[startPayloadPos] = (byte) (digit - 53);
        } else {
            dtmfbuf[startPayloadPos] = (byte) (digit - 48);
        }
        // notice we are bumping times/seqn just like audio packets
        try {
            // send start event packet 3 times
            // start event flag
            dtmfbuf[startPayloadPos + 1] = 0;
            // and volume
            // duration 8 bits
            dtmfbuf[startPayloadPos + 2] = 1;
            // duration 8 bits
            dtmfbuf[startPayloadPos + 3] = -32;
            for (int r = 0; r < 3; r++) {
                dtmfpacket.setSequenceNumber(sequenceNum++);
                dtmfpacket.setTimestamp(transcoder.getOutgoingEncodedFrameSize());
                doRtpDelay();
                rtpSocketSend(dtmfpacket);
            }
            // send end event packet 3 times
            // end event flag
            dtmfbuf[startPayloadPos + 1] = -128;
            // duration 8 bits
            dtmfbuf[startPayloadPos + 2] = 3;
            // duration 8 bits
            dtmfbuf[startPayloadPos + 3] = 116;
            for (int r = 0; r < 3; r++) {
                dtmfpacket.setSequenceNumber(sequenceNum++);
                dtmfpacket.setTimestamp(transcoder.getOutgoingEncodedFrameSize());
                doRtpDelay();
                rtpSocketSend(dtmfpacket);
            }
            // send 200 ms of blank packets
            for (int r = 0; r < 200 / transcoder.getOutgoingPacketization(); r++) {
                blankpacket.setSequenceNumber(sequenceNum++);
                blankpacket.setTimestamp(transcoder.getOutgoingEncodedFrameSize());
                doRtpDelay();
                rtpSocketSend(blankpacket);
            }
        } catch (Exception e) {
            log.warn("queueSipDtmfDigits", e.getLocalizedMessage());
        }
    }
}

Example 4 with RtpPacket

use of local.net.RtpPacket in project bigbluebutton by bigbluebutton.

the class RtpStreamTranslator method run.

/** Runs it in a new Thread. */
public void run() {
    if (rtp_socket_in == null || rtp_socket_out == null) {
        if (DEBUG)
            println("ERROR: RTP socket_in or socket_out is null");
        return;
    }
    //else
    byte[] buffer_in = new byte[BUFFER_SIZE];
    RtpPacket rtp_packet_in = new RtpPacket(buffer_in, 0);
    byte[] buffer_out = new byte[BUFFER_SIZE];
    RtpPacket rtp_packet_out = new RtpPacket(buffer_out, 0);
    if (DEBUG)
        println("Reading blocks of max " + BUFFER_SIZE + " bytes");
    //File file=new File("audio.wav");
    //javax.sound.sampled.AudioInputStream audio_input_stream=null;
    //try {  audio_input_stream=javax.sound.sampled.AudioSystem.getAudioInputStream(file);  } catch (Exception e) {  e.printStackTrace();  }
    running = true;
    try {
        rtp_socket_in.getDatagramSocket().setSoTimeout(SO_TIMEOUT);
        while (running) {
            try {
                // read a block of data from the rtp_socket_in
                rtp_socket_in.receive(rtp_packet_in);
                // send the block to the rtp_socket_out (if still running..)
                if (running) {
                    byte[] pkt1 = rtp_packet_in.getPacket();
                    int offset1 = rtp_packet_in.getHeaderLength();
                    int len1 = rtp_packet_in.getPayloadLength();
                    byte[] pkt2 = rtp_packet_out.getPacket();
                    int offset2 = rtp_packet_out.getHeaderLength();
                    int pos2 = offset2;
                    for (int i = 0; i < len1; i++) {
                        int linear = G711.ulaw2linear(pkt1[offset1 + i]);
                        //aux[pos++]=(byte)(linear&0xFF);
                        //aux[pos++]=(byte)((linear&0xFF00)>>8);
                        //int linear2=G711.ulaw2linear(audio_input_stream.read());
                        //linear+=linear2;
                        pkt2[pos2++] = (byte) G711.linear2ulaw(linear);
                    }
                    rtp_packet_out.setPayloadType(rtp_packet_in.getPayloadType());
                    rtp_packet_out.setSequenceNumber(rtp_packet_in.getSequenceNumber());
                    rtp_packet_out.setTimestamp(rtp_packet_in.getTimestamp());
                    rtp_packet_out.setPayloadLength(pos2 - offset2);
                    rtp_socket_out.send(rtp_packet_out);
                }
            } catch (java.io.InterruptedIOException e) {
            }
        }
    } catch (Exception e) {
        running = false;
        e.printStackTrace();
    }
    // close RtpSocket and local DatagramSocket
    DatagramSocket socket_in = rtp_socket_in.getDatagramSocket();
    rtp_socket_in.close();
    if (socket_in_is_local && socket_in != null)
        socket_in.close();
    DatagramSocket socket_out = rtp_socket_out.getDatagramSocket();
    rtp_socket_out.close();
    if (socket_out_is_local && socket_out != null)
        socket_out.close();
    // free all
    rtp_socket_in = null;
    rtp_socket_out = null;
    if (DEBUG)
        println("rtp translator terminated");
}

Example 5 with RtpPacket

use of local.net.RtpPacket in project bigbluebutton by bigbluebutton.

the class RtpStreamReceiver method run.

/** Runs it in a new Thread. */
public void run() {
    if (rtp_socket == null) {
        if (DEBUG)
            println("ERROR: RTP socket is null");
        return;
    }
    //else
    byte[] buffer = new byte[BUFFER_SIZE];
    RtpPacket rtp_packet = new RtpPacket(buffer, 0);
    if (DEBUG)
        println("Reading blocks of max " + buffer.length + " bytes");
    //byte[] aux=new byte[BUFFER_SIZE];
    running = true;
    try {
        rtp_socket.getDatagramSocket().setSoTimeout(SO_TIMEOUT);
        while (running) {
            try {
                // read a block of data from the rtp socket
                rtp_socket.receive(rtp_packet);
                // write this block to the output_stream (only if still running..)
                if (running)
                    output_stream.write(rtp_packet.getPacket(), rtp_packet.getHeaderLength(), rtp_packet.getPayloadLength());
            /*if (running)
               {  byte[] pkt=rtp_packet.getPacket();
                  int offset=rtp_packet.getHeaderLength();
                  int len=rtp_packet.getPayloadLength();
                  int pos=0;
                  for (int i=0; i<len; i++)
                  {  int linear=G711.ulaw2linear(pkt[offset+i]);
                     //aux[pos++]=(byte)(linear&0xFF);
                     //aux[pos++]=(byte)((linear&0xFF00)>>8);
                     aux[pos++]=(byte)G711.linear2ulaw(linear);
                  }
                  output_stream.write(aux,0,pos);
               }*/
            } catch (java.io.InterruptedIOException e) {
            }
        }
    } catch (Exception e) {
        running = false;
        e.printStackTrace();
    }
    // close RtpSocket and local DatagramSocket
    DatagramSocket socket = rtp_socket.getDatagramSocket();
    rtp_socket.close();
    if (socket_is_local && socket != null)
        socket.close();
    // free all
    output_stream = null;
    rtp_socket = null;
    if (DEBUG)
        println("rtp receiver terminated");
}