I have an iPhone app called vintage maker that takes videos from my iPhones "camera roll" folder and puts these really awesome filters on them. I'd like to start bringing in other videos that I've made to use with the app but I cannot figure out how to get photos and/or videos from my mac onto my iPhones "camera roll" folder. I know that I can create other folders for my iPhone like the one shown below called "Last Roll", but the app only works with video media located in the main "camera roll" folder. How do I get videos from my mac onto my "camera roll" iPhone folder?