I've created a webCam Stream with

```
navigator.getUserMedia({ "video": true }, function(stream){
    videoTag.src = window.URL.createObjectURL(stream);
    videoTag.play();
}

```

**Can I access the MediaStream object in `stream` in global scope?\***

(something like `navigator.getAllMediaStreams[0]`)

\*edit: ...without adding logic to the getUserMedia function. My problem case is a qr-decoder-library, that gets the stream for me and I don't want to change the third party code