Confuse. I just want to ask how the DepthAI demo works and if it is okay, do you have any examples of how to achieve this? Because most of the examples uses a 1:1 frame aspect ratio,. And in order to use the full FOV i need to apply the stretch / letterboxing method but the preview is still a square .
![](https://discuss.luxonis.com/assets/files/2024-06-05/1717583734-847743-image.png)