javascript - How to retrieve a MediaStream from a Blob url?

Question

It was possible to get an URL using window.URL.createObjectURL() from a stream like in below code.

navigator.getUserMedia({ video: true, audio: true }, function (localMediaStream) {

    var video = document.querySelector('video');
    video.src = window.URL.createObjectURL(localMediaStream);
    video.onloadedmetadata = function (e) {
        // Do something with the video here.
    };
}, 
function (err) {
    console.log("The following error occured: " + err);
}
);

Problem is now I have a blob URL like:

blob:http%3A//localhost%3A1560/f43bed15-da6c-4ff1-b73c-5640ed94e8ee

Is there a way to retrieve the MediaStream object from that?

Answer 1

In case you are using angular2, you can use the DOMSanitizer provided in the platform-browser-package:

import { DomSanitizer } from '@angular/platform-browser';
constructor(
    private sanitizer: DomSanitizer) {
}

and then use your stream like the following:

//your code comes here...
video.src = this.sanitizer.bypassSecurityTrustUrl(window.URL.createObjectURL(stream));

This should only