Configure the aspect ratio of Wowza ClearCaster broadcasts in Facebook mode

This article describes how to change the aspect ratio of a broadcast to Facebook Live when using a Wowza ClearCaster™ in Facebook mode. The default behavior is to match the source's aspect ratio, but sometimes you may want to alter the aspect ratio. For example, videos with a 1:1 aspect ratio (square video) work well across many types of displays, especially mobile devices. You can change the default behavior for your ClearCaster as well as specifying an aspect ratio for an individual broadcast. This article describes three methods for changing the broadcast aspect ratio.

Note: As of Friday, July 23, 2021 Facebook Manager will be deprecated on all versions of ClearCaster. Upgrade to Wowza ClearCaster encoder release to use Facebook Paired Templates to stream directly to Facebook live. See Create Wowza ClearCaster broadcasts to learn more about the Facebook Paired destination.

Configure the appliance-level aspect ratio for your broadcasts

Note: The appliance-level aspect ratio can't be altered during a live broadcast. You must finish the broadcast first.
  1. Make sure that the ClearCaster appliance is turned on and that it isn't delivering a live stream to Facebook Live. (No broadcasts can be live when changing the video aspect ratio.)
  2. Sign in to Wowza ClearCaster Manager at with your Wowza account.
  3. Click Settings next to the name of the ClearCaster you want to configure.
  4. In the Settings dialog, under Output Aspect Ratio, select Match Input Source (default),  Square (1:1) (good for mobile), Standard (4:3), or Vertical Crop (9:16) and then click OK.

Configure the aspect ratio for a single broadcast

Note: The aspect ratio for an individual broadcast can only be configured at the point of creating the broadcast. The aspect ratio can't be edited after the broadcast is created. For more information, see Create a Wowza ClearCaster broadcast in Facebook mode.
  1. Sign in to Wowza ClearCaster Manager at with your Wowza account.
  2. Click the Broadcasts tab, and then click Create Broadcast.
  3. Under Output Aspect Ratio, select the aspect ratio you want to use for your broadcast: Match Input Source (default), Square (1:1), Standard (4:3), Vertical Crop (9:16), Vertical Rotate Right (9:16), or Vertical Rotate Left (9:16)