Livestreaming: IPCapture (sdp file)

Basically, what I wanted to do is perform a livestreaming with IPCapture function in Processing. I have an external camera attached on a drone. My pc is connected to the controller's wifi. This is what i do normally (streaming). I open a cmd and nc to ""10.1.1.1 5502". After that, I will open the sdp file with vlc. It works perfectly. Instead of using these methods, I thinking using Processing to stream my video.

This is the sdp file code:

c=IN IP4 10.1.1.1

m=video 5600 RTP/AVP 96

a=rtpmap:96 H264/90000

t=0 0

This is my IPCapture code: import ipcapture.*;

IPCapture cam;

void setup() {
  size(720,520);
  cam = new IPCapture(this, "http://" + "10.1.1.1:5502/", "root", "admin");
  cam.start();

}

void draw() {
  if (cam.isAvailable()) {
    cam.read();
    image(cam,0,0);
  }
}

void keyPressed() {
  if (key == ' ') {
    if (cam.isAlive()) cam.stop();
    else cam.start();
  }
}

I was able to run the code, but it only show a grey empty screen with no video. What's wrong with my code, in the console no error message. How to link the sdp file with processing? Thx.