Multiple Cameras
Stream several cameras from one device. Run one pi-webrtc process per camera, or use the sponsor build to run all of them in one process.
One process per camera
Give each process its own --camera, --uid, --whep-port and --record-path:
./pi-webrtc --camera=libcamera:0 --uid=home-front --use-whep --whep-port=8080 --record-path=/home/pi/video/front
./pi-webrtc --camera=libcamera:1 --uid=home-side --use-whep --whep-port=8081 --record-path=/home/pi/video/sideEvery option works per process. With --enable-ipc, also give each process its own --socket-path.
One process for all cameras
* Sponsor build.
The sponsor build adds a cameras: list to the config file. All cameras then run in one process, with one uid and one WHEP port. Each camera takes the global settings, and can change them, including its own main and sub-stream and its recording.
uid: home-jetson-orin
cameras:
- camera: libargus:0
alias: front
fps: 60
width: 1920
height: 1080
sub-width: 720
sub-height: 480
record-source: main
webrtc-source: sub
webrtc: true
record: true
- camera: libargus:1
alias: side
fps: 60
width: 1280
height: 720
webrtc: false
record: true
record-path: /home/nx/video
use-whep: true
whep-port: 8080Each camera can turn WebRTC and recording on or off:
| Key | Default | Description |
|---|---|---|
alias | cam0, cam1, ... | The camera name. It is used for the recording folder, the WHEP path and the WebRTC stream id. Up to 32 letters, digits, - or _. It must be unique, and it cannot be sessions. |
webrtc | true | Stream this camera over WebRTC. |
record | true | Record this camera. |
Each camera records into its own folder. In this example, the front camera records to /home/nx/video/front/, and the side camera to /home/nx/video/side/.
Each camera with webrtc: true has its own WHEP path. In this example, http://<device-ip>:8080/front plays the front camera. http://<device-ip>:8080/side does not exist, because the side camera has webrtc: false.