Signaling
這一頁還沒有中文版，以下顯示英文原文。
Before video can flow, the browser and the device must exchange connection details (an SDP offer and answer, and ICE candidates). This step is called signaling. pi-webrtc supports three ways to do it, and you can turn on more than one at the same time.
| What it needs | Good for | |
|---|---|---|
| WHEP | Nothing extra. The device serves it. | Watching on the same network, with a standard player |
| MQTT | An MQTT broker | Watching from anywhere, peer-to-peer, with device control |
| SFU | A LiveKit server, or Cloudflare Realtime | Many viewers at the same time |
If none of them is on, pi-webrtc exits, because nobody could reach it. Every option is listed in Configuration.
Pages
- WHEP: play the stream from a URL. No server needed.
- MQTT: connect from anywhere through an MQTT broker.
- SFU: send one stream and let many people watch.
- TURN: connect when peer-to-peer fails, for example over 4G or 5G.
- Self-hosted Mosquitto: run your own MQTT broker.