Viewerframe Mode -
ViewerFrame Mode is a specific technical interface used by network IP cameras (often Panasonic or Axis models) to stream live video directly to a web browser.
In some cases, the "Mode" could even be manipulated. By changing the URL from mode=motion to mode=refresh, a viewer could force the camera to update more frequently, sometimes even gaining control over the camera's Pan-Tilt-Zoom (PTZ) functions to look around the room. The Security Lesson viewerframe mode
1. Source vs. Container Negotiation
Most developers make the mistake of hardcoding dimensions. ViewerFrame Mode acts as a dynamic negotiation protocol. ViewerFrame Mode is a specific technical interface used