The test application (tcnncameraapp) is a sample application that allows you to test the camera used in the TCC750x. It operates based on the V4L2 (Video for Linux 2) interface and enables real-time camera preview. Additionally, the application supports simultaneous monitoring of multiple cameras.
The following are the maximum numbers of cameras that can be monitored simultaneously using this application:
- IMX290: 3× FHD ISP DVRS
- AR0820: 1× QHD ISPLESS
- AR0239: 2× FHD RGB-IR ISPLESS
The options provided by tcnncameraapp are shown in the following table:
| Name | Option | Range | Default | Example | Description |
|---|---|---|---|---|---|
| Usage info | -? |
-? |
Show the usage information | ||
| Input Path | -p |
/dev/video0 |
-p /dev/video0 |
Mode to specify the input path | |
| Output Path | -P |
/dev/overlay |
-P /dev/overlay |
Mode to specify the output path | |
| Input Width | -w |
Up to 2560 | 1920 | -w 2560 |
Mode to specify the width of the input |
| Input Height | -h |
Up to 1440 | 1080 | -h 1080 |
Mode to specify the height of the input |
| Output Width | -W |
Up to 1920 | 1920 | -W 1920 |
Mode to specify the width of the output |
| Output Height | -H |
Up to 720 | 720 | -H 720 |
Mode to specify the height of the output |
| Output Position X | -X |
Up to 1920 | 0 | -X 960 |
Mode to specify the X-coordinate of the output. The sum of the output width and the output position X must not exceed 1920. |
| Output Position Y | -Y |
Up to 720 | 0 | -Y 360 |
Mode to specify the Y-coordinate of the output. The sum of the output height and the output position Y must not exceed 720. |
This table summarizes the key options available for configuring the tcnncameraapp and their respective usage.