> 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. # preferredVideoCodecs > Preferred video codecs in priority order. ```ts get preferredVideoCodecs(): string[] set preferredVideoCodecs(value): void ``` Preferred video codecs in priority order. ## **Parameters** **`value`** `string[]` Ordered list of preferred video [codec names](https://developer.mozilla.org/en-US/docs/Web/Media/Guides/Formats/WebRTC_codecs), e.g. `["VP9", "H264"]`. --- ## **Examples** ```ts console.log(client.preferences.preferredVideoCodecs); ``` > Preferred video codecs in priority order.