Audio/video out of sync after switch camera

Question

I\'m try create application where I can record video from different cameras on device during recording. For example. User press button \"start record\" from front camera, after

Answer 1

you need to stop recording, switch and start it again. the camera switch isnt instant AFAIK

cant you record into n files and later stich them together?

try using individual AVMutableComposition tracks and then setting a mutablecomposition for audio and one for video. (see Merging two m4v Movie Files Using AVMutableComposition - Videos Will Not Merge)