// ------------------------
// Handler for timer
// ------------------------
public void actionPerformed(ActionEvent e) {
// if the current image nb is less than the length of the video
if (imagenb < VIDEO_LENGTH) {
// update current imagenb
imagenb++;
try {
// get next frame to send from the video, as well as its size
int image_length = video.getnextframe(buf);
// Builds an RTPpacket object containing the frame
RTPpacket rtp_packet =
new RTPpacket(MJPEG_TYPE, imagenb, imagenb * FRAME_PERIOD, buf, image_length);
// get to total length of the full rtp packet to send
int packet_length = rtp_packet.getlength();
// retrieve the packet bitstream and store it in an array of bytes
byte[] packet_bits = new byte[packet_length];
rtp_packet.getpacket(packet_bits);
// send the packet as a DatagramPacket over the UDP socket
senddp = new DatagramPacket(packet_bits, packet_length, ClientIPAddr, RTP_dest_port);
RTPsocket.send(senddp);
// System.out.println("Send frame #"+imagenb);
// print the header bitstream
rtp_packet.printheader();
// update GUI
label.setText("Send frame #" + imagenb);
} catch (Exception ex) {
System.out.println("Exception caught: " + ex);
System.exit(0);
}
} else {
// if we have reached the end of the video file, stop the timer
timer.stop();
}
}
