- (void)viewDidLoad {
    [super viewDidLoad];
    UIImage *cover = [UIImage imageNamed:@"cover.png"];
    NSDictionary *settings = [PMMovieMaker videoSettingsWithCodec:AVVideoCodecH264 withWidth:cover.size.width andHeight:cover.size.height];
    _movieMaker = [[PMMovieMaker alloc] initWithSettings:settings];

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths firstObject];
    NSString *tempPath = [documentsDirectory stringByAppendingFormat:@"/upload.mov"];
    [_movieMaker setOutputPath:tempPath];

    NSString *imagePath = [[NSBundle mainBundle] pathForResource:@"cover" ofType:@"png"];
    NSString *audioPath = [[NSBundle mainBundle] pathForResource:@"audio" ofType:@"m4a"];
    [_movieMaker createMovieFromImagesPath:@[imagePath] audioPath:audioPath withCompletion:^(NSURL *fileURL) {
        NSLog(@"Video saved to: %@", [fileURL absoluteString]);
    }];
}