> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes. # defaultVideoConstraints > Default video track constraints applied when video is enabled without explicit constraints. ```ts get defaultVideoConstraints(): MediaTrackConstraints | undefined set defaultVideoConstraints(value: MediaTrackConstraints | undefined) ``` Default video track constraints applied when video is enabled without explicit constraints. ## **Parameters** **`value`** `MediaTrackConstraints | undefined` Default constraints applied when capturing video input. Pass `undefined` to clear. See [`MediaTrackConstraints`](https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints). --- ## **Examples** ```ts // Read console.log(client.preferences.defaultVideoConstraints); // Write client.preferences.defaultVideoConstraints = { width: { ideal: 1280 }, height: { ideal: 720 } }; ``` > Default video track constraints applied when video is enabled without explicit constraints.