Cutting backgrounds out of a video

[lotsofquestions]

I have a video of a window with trees moving outside. You can see the wall that the window is on and I want to cut the wall out of the video. How can I do this? I basically want to crop the video so it only shows the window and not the wall.

 

[IamSam]

Hello and welcome to PSG.

How about we start with a few questions.

What is your level of experience with Photoshop?
What version of Ps are you using?

 

[lotsofquestions]

I am a beginner I don't really know how to do complex things. Photoshop CC 2015.5