I am a noob at doing this, as I started very recently. I tried cropping every frame in a video file to my mouse cursor. So, I searched up the Track Position Node and tracked the position of my cursor slowly moving.
Then, I made a Math Node tried outputting variables for my Crop Node's Left, Right, Top and Bottom values. However, there are no input nodes other than Image.
Is there any way I can feed a value output into the Crop Node's Left Right, Top and Bottom?