# monitor — Preview configured gst sources

`s6 monitor` opens the live gst capture sources declared in the pipeline config
and displays them side by side in one OpenCV window. It is the lightest way to
check camera reachability and framing without running the full tracking
pipeline.

## Usage

```bash
# Preview the configured gst sources from the default pipeline config
s6 monitor

# Use an explicit config file
s6 monitor --config ./configs/pipeline.config.yaml
```

## Behavior

- Only `gst` input is supported in the current implementation.
- The command loads `platform.gstreamer.client` from the selected pipeline
  config via `PipelineLoader.load_config()`.
- Each configured source is opened as an OpenCV GStreamer capture and resized
  to a shared height before horizontal concatenation.
- Press `q` or `Esc` to close the preview window.

## Notes

- `s6 monitor` does not run inference, record datasets, or publish uplink
  telemetry.
- The command requires `pygst` to be importable because it constructs the gst
  client objects from the pipeline config.
- If any configured source fails to open, the command exits with an error
  instead of skipping that feed.