Return frame from library

Hi, Thank you for this amazing library.

I am going to use it to autopilot, based on image processing with OpenCV.

The best way to use easyTello would be to modifiy the methods "_video_thread" and "streamon" to return a frame in OpenCV format, but I don't know hoe to do this.

Could you modifiy tello.py to do this?

Thank you very much.

Javier.

@openexpertise you can modify the _video_thread to yield the frame based on a flag. This way you will have the frame as a return value without exiting the loop, that will cause the thread to stop and exit the app. Or instead of calling yield frame I would call queue.put(i) where queue was the Queue.Queue passed in during construction of the thread.

After you turn the stream on with .streamon() you can get the last captured frame with .last_frame in a different thread.