Build a part of an opensource project as a stand alone project

There is an opensource project which is big. It has a part that gets frames from a video and process them using cuda. I want to get that part of the code and compile it as a separated project. currently the projects get the live frames from several cameras, you will replace that to get it from 4 video files. then use the processing part to get the output file. The project is made on cuda with multi processing. If you have experience in cuda and can use qt please bid.