How to fix the error of getusermedia not producing a stream?

1 year ago
Noah Thompson
2 minutes

There could be several reasons for the “getUserMedia failed to generate stream” error to occur.

  1. The browser does not support the getUserMedia method: Before using the getUserMedia method, you need to check if the browser supports it. You can use the following code to detect it:
navigator.mediaDevices.getUserMedia = navigator.mediaDevices.getUserMedia ||
    navigator.webkitGetUserMedia ||
    navigator.mozGetUserMedia ||
    navigator.msGetUserMedia;
if (!navigator.mediaDevices.getUserMedia) {
    console.log("getUserMedia is not supported");
}

If the browser does not support the getUserMedia method, you can try updating the browser or using another browser that supports this method.

  1. Using the HTTPS protocol is necessary for the getUserMedia method to function properly. If a webpage is using the HTTP protocol, it should be changed to HTTPS.
  2. User not authorized to use camera or microphone: Before calling the getUserMedia method, users need to authorize the use of the camera or microphone. When calling the getUserMedia method, errors can be caught and unauthorized user situations can be handled in the error callback function.
navigator.mediaDevices.getUserMedia(constraints)
    .then(function(stream) {
        // 成功获取到流
    })
    .catch(function(error) {
        if (error.name === 'NotAllowedError') {
            console.log("用户未授权使用摄像头或麦克风");
        } else {
            console.log("getUserMedia错误：" + error.message);
        }
    });

Users can be prompted to authorize or provide alternative solutions without user authorization.

  1. For other device or browser related issues: Some devices or browsers may have specific compatibility problems, try updating device drivers or testing with a different browser.

If none of the above methods can solve the issue, you can check the developer tools of the browser to view specific error messages for better pinpointing and resolving the problem.

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