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Disable AGC on Android WebView

I'm using the following code to get mic audio stream and disable automatic gain control:
const stream = await navigator.mediaDevices.getUserMedia({
audio: {
autoGainControl: false
},
video: false
});
That works fine on destkop, but when I run it within my Android app via WebView, it doesn't. It seems that AGC acts at system level on Android.
Any idea?

Get actual facingMode of a mediaStreamTrack in Firefox

I want to know the actual facingMode of a media stream track in order to invert (mirror) the image or not depending on whether the active camera is at the back or at the front of a device. If the actual facingMode is "user", the CSS property of the video will be: transform: scaleX(-1); if the facingMode is "environment", I do not invert the image.
This is my piece of code:
navigator.mediaDevices.getUserMedia({ facingMode: "environment", width: { ideal: 4096 } })
.then (function(mediaStream){
video.srcObject = mediaStream;
console.log('facingmode: ' + video.srcObject.getTracks()[0].getSettings().facingMode);
});
In Chrome, everything works as expected: The console shows "environment" or "user", depending on the actually active camera.
In Firefox, the console always shows "undefined" (what is not expected) (same behaviour on computer and on smartphone).
Could someone help me to retrieve the actual facingMode in Firefox too?
Thank you

In Firefox for Android and other clients that still don't provide
MediaTrackSettings.facingMode, a workaround is to inspect the
MediaStreamTrack.label, e.g.:
const isEnvironment =
"environment" == video.srcObject.getVideoTracks()[0].getSettings().facingMode
|| video.srcObject.getVideoTracks()[0].label.indexOf("acing back") !== -1;
Unfortunately, the labels may vary across user agents.
The above snippet works in Firefox Mobile 68. Even in German, the label for the back camera is "Camera 0, Facing back, Orientation 90".

Firefox can return the correct facing mode without problem. I've test it using the following code:
navigator.mediaDevices.getUserMedia({ video: true})
.then(function(stream) {
console.log(stream.getTracks()[0].getSettings().facingMode);
})
.catch(function(err) {
console.log(err)
});
The problem you have is maybe that you haven't authorized the page to use the camera. Go to Preferences -> Permissions -> Camera -> Settings ... and uncheck Block new requests asking to access your camera.

navigator.mediaDevices in microsoft edge mobile ios 13.3.1

has anyone tried to capture video from iphone camera on microsoft edge mobile browser? does it work? navigator.mediaDevices returns me undefined and I'm wondering if that browser doesn't support mediaDevices API at all, or it`s just a camera access issue.

Please check this article, if the current document isn't loaded securely or if using the new MediaDevices API in older browsers, the navigator.mediaDevices might be undefined. So, try to check the browser version and clear the browser data, and then retest the code.
Besides, before using navigator.mediaDevices, you could try to add the following polyfill:
// Older browsers might not implement mediaDevices at all, so we set an empty object first
if (navigator.mediaDevices === undefined) {
navigator.mediaDevices = {};
}
// Some browsers partially implement mediaDevices. We can't just assign an object
// with getUserMedia as it would overwrite existing properties.
// Here, we will just add the getUserMedia property if it's missing.
if (navigator.mediaDevices.getUserMedia === undefined) {
navigator.mediaDevices.getUserMedia = function(constraints) {
// First get ahold of the legacy getUserMedia, if present
var getUserMedia = navigator.webkitGetUserMedia || navigator.mozGetUserMedia;
// Some browsers just don't implement it - return a rejected promise with an error
// to keep a consistent interface
if (!getUserMedia) {
return Promise.reject(new Error('getUserMedia is not implemented in this browser'));
}
// Otherwise, wrap the call to the old navigator.getUserMedia with a Promise
return new Promise(function(resolve, reject) {
getUserMedia.call(navigator, constraints, resolve, reject);
});
}
}
navigator.mediaDevices.getUserMedia({ audio: true, video: true })
.then(function(stream) {
var video = document.querySelector('video');
// Older browsers may not have srcObject
if ("srcObject" in video) {
video.srcObject = stream;
} else {
// Avoid using this in new browsers, as it is going away.
video.src = window.URL.createObjectURL(stream);
}
video.onloadedmetadata = function(e) {
video.play();
};
})
.catch(function(err) {
console.log(err.name + ": " + err.message);
});
I have reproduced the problem on IOS 13.4 version and using Microsoft Edge 44.13.7 version, after using above polyfill, this error disappears.

Video tag with input from Camera is Working in Safari on iOS but neither working in Chrome nor in any In-app Browser

The video streaming works perfectly well for Android, and Safari in iOS. The problem occurs when we try to use Chrome on iOS or an In-app Browser. I am using Vue as a Single File Component.
My HTML code is as follows:
<video
height="400px"
width="300px"
autoplay
playsinline
/>
My Vue JS code is as follows:
data: () => ({
video: null,
}),
mounted() {
navigator.mediaDevices.getUserMedia({
audio: false,
// Prioritize Rear Camera
video: {facingMode: 'environment'},
})
.then((stream) => {
this.video = document.querySelector('video');
this.video.srcObject = stream;
this.video.tracks = stream.getTracks();
});
}
Any help or alternative methods to solve this would be appreciated. My goal is to start a stream from the camera on the webpage and take a photo on click.

Despite the information here Chrome, Firefox, and Edge for iOS do not support the navigator.mediaDevices property due to the fact that under the hood they all use the built-in WebKit rendering engine which does not provide this capability to third parties. There is a bug filed here which includes some promising discussions about how iOS 13.4 may have partially resolved this.
Until Apple decides to provide this, the only option is to check navigator.mediaDevices for null and catch errors on the promise:
if (navigator.mediaDevices == null) { /* unsupported */ }
else {
navigator.mediaDevices.getUserMedia({})
.then((stream) => {})
.catch((err) => { /* unsupported */ })
}
...and provide users with the appropriate feedback.

Chrome: navigator.mediaDevices.getUserMedia is not a function

I'm on localhost and trying to use the MediaDevices.getUserMedia method in Chrome. I receive the error as titled. I understand that in Chrome it is only possible to use this function with a secure origin and that localhost is considered a secure origin. Also, this works in Firefox.
This is how I'm using it as shown on the Google Developers website https://developers.google.com/web/updates/2015/10/media-devices?hl=en:
var constraints = window.constraints = {
audio: false,
video: true
};
navigator.mediaDevices.getUserMedia(constraints).then(function(stream) {
callFactory.broadcastAssembly(stream);
...
});

On some latest browsers navigator.getUserMedia does not perform well. So, try using navigator.mediaDevices.getUserMedia. Or, better you check if navigator.mediaDevices.getUserMedia is available for the browser use navigator.mediaDevices.getUserMedia or else use navigator.getUserMedia.
navigator.getWebcam = (navigator.getUserMedia || navigator.webKitGetUserMedia || navigator.moxGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia);
if (navigator.mediaDevices.getUserMedia) {
navigator.mediaDevices.getUserMedia({ audio: true, video: true })
.then(function (stream) {
//Display the video stream in the video object
})
.catch(function (e) { logError(e.name + ": " + e.message); });
}
else {
navigator.getWebcam({ audio: true, video: true },
function (stream) {
//Display the video stream in the video object
},
function () { logError("Web cam is not accessible."); });
}
Hope this will solve your problem.

Try enabling: chrome://flags/#enable-experimental-web-platform-features
Worked for me in chromium

I too had the same problem in my chrome browser.
first check your phone is supported by testing it in https://test.webrtc.org/
if your phone passes all the cases, then check step 2
step 2:
If your hosting a webpage or running a third party webpage,see whether camera permissions are enabled on your phone.
Also the main issue is WEBRTC is not supported in HTTP site and it is supported only in HTTPS site
This is the https site which allows web
This is the http site which gives a error

I got stuck in the same issue. One solution is to follow and download the extension Web Server for Chrome shared in the comment above by #ellerynz, or
if you have python installed you could also do
python -m SimpleHTTPServer [port]
After you hit enter, you should see the following message:
Serving HTTP on 0.0.0.0 port 8000 ...
Open the browser and put
http://127.0.0.1:[port]

Have you tried to include adapter.js polyfill ? Check this page :
https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia#Browser_compatibility
It looks like this or enabling chrome://flags/#enable-experimental-web-platform-features as per #Simon Malone's note, is needed for Chrome.

I was having this problem too and changing flags didn't seem to work. I came across this chrome extension — Web Server for Chrome in Google's WebRTC tutorial which seemed to do the trick.

Use navigator.getUserMedia() instead.
navigator.getUserMedia(constraints, successCallback, errorCallback);