Domexception: Requested Device Not Found Getusermedia

Domexception: Requested Device Not Found Getusermedia

Trying to access IP Camera that is connected to a wifi.

I am connected to that wifi but I am getting error. If I try open using vlc I am able to connect but not getUserMedia has null.

@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
})
export class HomeComponent {
  @ViewChild('video') video: any; 
  constructor() {
  }
  hasGetUserMedia() {
  return !!(navigator.mediaDevices &&
    navigator.mediaDevices.getUserMedia);
}


ngAfterViewInit() {
  if (this.hasGetUserMedia()) {
    // Good to go!
    console.log("Gooddd................");
  } else {
    alert('getUserMedia() is not supported by your browser');
  }
  let _video = this.video.nativeElement;
  if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
    navigator.mediaDevices.getUserMedia({ video: true, audio: true })
      .then(function (stream) {
        _video.src = window.URL.createObjectURL(stream);
        _video.play();
      }).catch(function (err) {
        console.log(err);
      });
    }
  }
}

<video #video width="640" height="480" autoplay></video>
1

6 Answers

This happens when you dont have any device to capture video or capture audio

try checking if your webcam and your microphone are working fine

try changing this line:

_video.src = window.URL.createObjectURL(stream);

with this one:

_video.srcObject = stream;

Try without "audio: true". Its help for my. (Microphone are not work). And check webcam on other sites. Maybe need check permissions for this page.

In my case i have connected external camera through USB i was able to get the devices, i was getting kind of devices as audiooutput and videoinput, and there was no audioinput(microphone device) but while i was requesting for devices i passed constraints as..

function Webcam(){
  this.constraints = {
    video: true,
    audio: true
  }
  this.userMedia = null;
  this.mediaDevices = navigator.mediaDevices;
  this.initialize = function(){
    this.userMedia = this.mediaDevices.getUserMedia(this.constraints);
  }
}

let webcam = new Webcam();
    webcam.initialize();

So Promise not satisified and getting error as Requested device not found.

Use this line to initialize the webcam and microphone:

navigator.mediaDevices.getUserMedia({ audio: true, video: true });

Try attaching an earpiece or earplug with microphone to your PC. mine has no microphone that was why I got that error

1

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David Miller
Author

David Miller

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.