Re: [mediacapture-image] Document OverConstrainedError for PTZ in explainer (#229) from François Beaufort via GitHub on 2020-08-31 (public-webrtc-logs@w3.org from August 2020)

From: François Beaufort via GitHub <sysbot+gh@w3.org>
Date: Mon, 31 Aug 2020 13:56:02 +0000
To: public-webrtc-logs@w3.org
Message-ID: <issue_comment.created-683794630-1598882160-sysbot+gh@w3.org>

> I haven't seen any use case motivating this complexity, all examples in the spec and primer are solely using boolean constraints.

This is not true ;
See the explainer example below on how to reset pan.

![image](https://user-images.githubusercontent.com/634478/91727452-050a1e80-eba2-11ea-9b3b-026d13ce3661.png)

Note that this example though may be better with a device id though.
```js
const videoStream = await navigator.mediaDevices.getUserMedia({
  // Website asks to reset known camera pan.
  video: { pan: 1, deviceId: { exact: "myCameraDeviceId" } }
});
``` 

However, as you said, this could be done with gUM and applyConstraints.

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Received on Monday, 31 August 2020 13:56:03 UTC