Add open source filters to existing iOS app

This project is to add open source video filters to existing iOS app. You also need to add filter setting screen so user to set parameters for any filter. Here is link to doc and sources of those open source filters [login to view URL] You will get sources of current version of video editing software with some other filters so you can see how filter is added/called. User must buy those extra filters to use them so each filter must be separate iOS purchase to be able to save video with filter. In other words all filters should be available to preview but must be not possible to save video with filter unless that filter is purchased as in-app purchase. There will be 4 filters categories of filters like you see on linked doc After touch on category should be page with circles of same size like on current filter selection with filter name below the circle. Label text below each files should be filter name . Make sure that circles are big enough to be able to but good visible name. That screen with circles with filter name labels must be scrollable. After user touch on circle with files the filter preview screen show open and last video should auto play with chosen filter, if no current video is selected should be popup with information "Select or Record video to preview filter effect" The preview screen should be current main screen but instead of 3 central option should be big button with test "Buy This Filter". After touch on filter should be iTunes normal purchase actions. Also must be "This Filter Price [currency sign] X.XX. App should display current currency properly for itunes store region and should get proper price form iTunes for that item for proper currency. Again each filter will be separate items (currently existing filters will be free). Filter Categories page and filter selection page must be scrollable If you have any question please ask through message.