Adjusting video cropping and letterboxing

You can specify cropping or letterboxing of a Publisher or Subscriber's video by setting the fitMode property of the options you pass into OT.initPublisher() or Session.subscribe(). Pass in one of the following two strings:

• "cover" — The video is cropped if its dimensions do not match those of the DOM element. This is the default setting for videos publishing a camera feed.
• "contain" — The video is letterboxed if its dimensions do not match those of the DOM element. This is the default setting for screen-sharing videos.

For example, the following code initializes a publisher with the video element letterboxed:

var publisher = OT.initPublisher("publisher-element-id",
  {fitMode: "contain"});

The following code subscribes to a stream with the video element cropped:

var subscriber = session.subscribe(stream,
  "subscriber-element-id",
  {fitMode: "cover"});