How to stop video clips from uploading to Skydrive

I have a Windows 8.1 desktop and a Windows Phone 8 smartphone. I use Windows Live Photo Gallery for downloading files from my phone's camera role. Now that I've got 8.1 on my desktop and a new broadband line that gives fast download and upload speeds I want to go over to using Skydrive for a majority of my data from 2014, just like MS are encouraging us to do. The problem I foresee is not being able to stop video clips I take with my Windows 8 phone from uploading to Skydrive after I download them from my smartphone. The download feature of Live Photo Gallery and for that matter the WIndows 8.1 Windows Phone app downloads both photos and videos to my pictures folders rather than separately to my Pictures resp, Video folders. So if my Pictures folder is on Skydrive, which is the intention, the synch program will start uploading my often very large video clips to Skydrive too. I don't want this to happen so was wondering if anyone has any idea as to what I can do to stop files over a certain size to be uploaded to Skydrive?