- From: Eero Häkkinen via GitHub <sysbot+gh@w3.org>
- Date: Tue, 01 Sep 2020 08:50:07 +0000
- To: public-webrtc-logs@w3.org
> > * Hotfix the fitness distance algorithm to give weight to presence of constraints.
>
> I do not see how this will guarantee to get what we want.
The fitness distance algorithm could be hotfixed so that the distance is positive infinity if a PTZ constraint is present but the camera does not support that PTZ capability. In that case
```js
navigator.mediaDevices.getUserMedia({video: {tilt: {}}});
```
would select a tilt capable camera or fail with OverconstrainedError,
```js
navigator.mediaDevices.getUserMedia({video: {deviceId: {exact: '20983-20o198-109283-098-09812'}, tilt: {}}});
```
would select the device 20983-20o198-109283-098-09812 if it is tilt capable camera or fail with OverconstrainedError overwise and
```js
navigator.mediaDevices.getUserMedia({video: {deviceId: {exact: '20983-20o198-109283-098-09812'}, advanced: [{tilt: {}}]}});
```
would always select the device 20983-20o198-109283-098-09812 (given that it is available).
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Received on Tuesday, 1 September 2020 08:50:09 UTC