Coding a user interactive video editing (Application)

Dear community,

this is my first time asking a question in the forum. Please let me know if anything is unclear.

I could not find any information on how to make the following possible (and unfortunatly I still lack the Matlab experience to do it completely on my own).

What I need is a program that allows the user to click certain points in an video and record the frame, x and y coordinate in a table. It should further be able to distinguish between two different events: split and fusion.

So the table would have the following columns: framesplit, xsplit, ysplit, framefusion, xfusion, yfusion.

1) Would that be possible to code as a Matlab application? Since by default it can only import images and I did not find a way to change it to video.

2) I can get coordinates from an image with that code:

uiwait(msgbox('Locate the point'));
[x,y] = ginput(5);
hold on; % Prevent image from being blown away.
coordinates = [x,y]

but unfortunately also failed to transfer it to video. Also I have no idea how to make the point show up in the video after I selected it (with this code it only shows all five points after all of them have been selected.) Also I would prefer to let the user decide how many points he/she wants to add. With this code I have to decide the amount in advance.

Any ideas how to solve these issues?

Sorry, I know its a lot, but any small advice to solve any of the subproblems would be great :)

Thanks a lot in advance.