What does frame.sizeInfo.sourceSize represent?

I’m using the Milestone Web SDK to stream video feed from a 2023R3 Milestone Mobile Server. When I receive a frame using XPMobileSDK.requestStream, the frame has a sizeInfo property which in turn has a sourceSize property (so frame.sizeInfo.sourceSize). What does this sourceSize property represent in relation to my cameras and/or Milestone server? The numbers I’m seeing for sourceSize don’t correlate with my camera resolutions or anything that I’ve configured on the server.

I’m curious about this because I want to make sure that I’m streaming the lower resolution stream that I configured in Milestone and not a full resolution stream.

The sourceSize parameter represents the original resolution of the camera.

XPSDKVideoConnectionFrame Class Reference (milestonesys.com)

Decoding frames (milestonesys.com)

Thanks @riccardo conti​ ! I appreciate your help with that.