qpycam-hello Command

The qpycam-hello command displays the live camera feed. It is useful for testing camera functionality and adjusting display settings.

Usage

To run qpycam-hello with default settings:

qpycam-hello

To see all available options:

qpycam-hello --help

Commonly Used Options

Option	Description
`-ct`, `--camera_type`	Selects the camera type (0: CSI, 1: USB, 2: RTSP).
`-id`, `--device_id`	Specifies the device ID for USB cameras (default: 2).
`-url`, `--input_rtsp_url`	RTSP stream URL (only for RTSP cameras).
`-t`, `--timeout`	Sets the stream duration in ms (0 for infinite).

Note

By default, qpycam-hello will run continuously.
To stop manually, press Ctrl + C.
To run for a limited time, use the -t option (e.g., -t 5000 for 5 seconds).

For a full list of common options, refer to Common Options.

Display Options

Option	Description
`--display`	Enable video display (default: True).
`--fullscreen`	Run in fullscreen mode.
`-dw`, `--display_width`	Set display width (default: 1920 px).
`-dh`, `--display_height`	Set display height (default: 1080 px).

Example Usage

Display live camera feed (default: CSI camera)
```
qpycam-hello
```
Specify 5 seconds to close the window
```
qpycam-hello -t 5000
```
Use a USB camera (device ID 2)
```
qpycam-hello -ct 1 -id 2
```

Show an RTSP stream

qpycam-hello -ct 2 -url rtsp://10.1.9.22:8900/live

Rotate the video
```
qpycam-hello --rotate 1
```

Set custom display resolution

qpycam-hello --display -dw 1280 -dh 720