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29 lines
1.2 KiB
Markdown
29 lines
1.2 KiB
Markdown
# Room camera snapshot service
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Lightweight systemd service that serves a JPEG snapshot from any MJPEG-capable webcam (most USB webcams) at 4 fps. The server pulls `http://<host>:8080/snapshot.jpg` for room cams.
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## Files
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- `room-cam-snapshot.sh` – ffmpeg + simple HTTP server wrapper
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- `room-cam.service` – systemd unit template
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## Usage
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1) Copy the service into place (adjust path/env as needed):
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```bash
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sudo cp roomcam-service/room-cam.service /etc/systemd/system/room-cam.service
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sudo systemctl daemon-reload
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sudo systemctl enable --now room-cam.service
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```
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2) Override defaults via `Environment=` in the unit or drop-ins:
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- `DEVICE=/dev/video0`
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- `RESOLUTION=640x480`
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- `QUALITY=5` (ffmpeg MJPEG quality; lower is higher quality)
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- `PORT=8080`
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- `WORKDIR=/run/roomcam`
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- `INPUT_FORMAT=mjpeg` (use `bayer_grbg8` for OV534/raw Bayer cams; aliases `GRBG`/`grbg` are accepted)
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3) Point the server `roomCameras[].url` to `http://<host>:8080/snapshot.jpg`.
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Notes:
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- The camera runs at its native MJPEG frame rate; the server polls snapshots at ~4 fps, so no extra filtering is applied here.
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To run outside systemd, just execute `./room-cam-snapshot.sh` with any overrides.
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