I'm trying to make metronome app that plays sound on repeat (BPM) and with/without each tack volume. I tried to achieve that with Timer and GCD Timer like that: let interval = TimeInterval(Double(60) ...

I am trying to merge two videos together in AVFoundation. I am using AVMutableComposition and I add both tracks to the composition, resulting in a final video where I have the first video with its aud...

I have a big video file and I want to make a new video from pieces of that big one. I have an array of seconds like: [20, 35, 100, 267, 490, 699] and an offset like 2 and I would love to make a mew vi...