Swift Merge AVasset-Videos array

Question

I want to merge the AVAsset-arrayVideos into one single video and save it on camera roll. Raywenderlich.com has a great tutorial where two videos are merged into on

Answer 1

You don't need atTimeM at all, since you are simply marching completeTrackDuration along it is where the next piece should be added. So replace

if videoAsset == arrayVideos.first{
            atTimeM = kCMTimeZero
        } else{
            atTimeM = lastAsset!.duration
        }
        try videoTrack.insertTimeRange(CMTimeRangeMake(kCMTimeZero, videoAsset.duration), of: videoAsset.tracks(withMediaType: AVMediaTypeVideo)[0], at: atTimeM)

with

try videoTrack.insertTimeRange(CMTimeRangeMake(kCMTimeZero, videoAsset.duration), of: videoAsset.tracks(withMediaType: AVMediaTypeVideo)[0], at: completeTrackDuration)