Mode 1: camera video + mic audio. Mode 2: element-capture preview div (video, no sound) + single Web-Audio mix of mic + loopback music. Mode 3: sprite — own camera stacked N× in 16:9 slots via worker compositor. WHIP protocol (Chrome only)
Configuration
Frame rate requested from the camera (ideal). In Mode 3 the camera cadence drives the sprite compositor.
Requested as ideal constraints at capture start. The preview box resizes to match the aspect ratio.
Own camera repeated N times. Changeable while streaming — forces a mid-stream resolution change.
Fixed for the session (set before starting).
Applied via sender.setParameters — Chrome's default bitrate heuristics don't fit tall frames.
Records the pristine composited sprite locally (~20 Mbps) while streaming — input for the server-side cutting experiment.
Applies to the microphone capture in both modes. ON = browser audio processing enabled.
Sends an absolute NTP capture timestamp per packet. Uncheck to test SR / arrival-time fallback.