The phrase viewerframe?mode=motion is a specific URL parameter often used by older network cameras (particularly Panasonic and some generic OEM devices).
Viewerframe is a web-based viewing interface used by various network cameras (notably Axis and older Panasonic models) to display live video through a browser without requiring complex software.
// Frame pacing for smooth motion void present_frame(Frame* f) wait_for_vblank(); uint64_t now = clock_ns(); uint64_t target_ns = last_present_ns + frame_interval_ns; if (now < target_ns) sleep_ns(target_ns - now - 1_000_000); // wake 1ms early spin_wait_for_vblank();
: Instructs the camera's web server to provide the standard viewing frame/interface [1, 2]. Mode=Motion
Slight decode variance destroys motion smoothness.