iOS: get video duration and thumbnails without playing video

Question

I need to get a (local) video\'s duration, and then get access to its individual frames as UIImages. So far I\'ve been using MPMoviePlayerController fo

Answer 1

To get the duration:

NSURL *sourceMovieURL = [NSURL fileURLWithPath:somePath];
AVURLAsset *sourceAsset = [AVURLAsset URLAssetWithURL:sourceMovieURL options:nil];
CMTime duration = sourceAsset.duration;

To get a framegrab:

AVAssetImageGenerator* generator = [AVAssetImageGenerator assetImageGeneratorWithAsset:destinationAsset];

//Get the 1st frame 3 seconds in
int frameTimeStart = 3;
int frameLocation = 1;

//Snatch a frame
CGImageRef frameRef = [generator copyCGImageAtTime:CMTimeMake(frameTimeStart,frameLocation) actualTime:nil error:nil];