ios - how to save video file into document directory

Question

I am capturing video using following code:

UIImagePickerController *ipc = [[UIImagePickerController alloc] init];
ipc.sourceType =  UIImagePickerControllerSourceTypeCamera;
ipc.delegate = self;
//need to handle delegates methods 
//
ipc.allowsEditing = YES;
ipc.videoQuality = UIImagePickerControllerQualityTypeMedium;
ipc.videoMaximumDuration = 30.0f; // 30 seconds
//temporary duation of 30 seconds for testing

ipc.mediaTypes = [NSArray arrayWithObject:@"public.movie"];
// ipc.mediaTypes = [NSArray arrayWithObjects:@"public.movie", @"public.image", nil];
[self presentModalViewController:ipc animated:YES]; 
//this controller allows to record the videos

and I can save recorded video to album using following code

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{ 
    // recover video URL
    NSURL *url = [info objectForKey:UIImagePickerControllerMediaURL];

    // check if video is compatible with album
    BOOL compatible = UIVideoAtPathIsCompatibleWithSavedPhotosAlbum([url path]);

    // save
    if (compatible){
        UISaveVideoAtPathToSavedPhotosAlbum([url path], self, @selector(video:didFinishSavingWithError:contextInfo:), NULL);
        NSLog(@"saved!!!! %@",[url path]);
    }
    [self dismissModalViewControllerAnimated:YES];
    [picker release];
}

but I need to retrieve that file from album and need to store into document directory?

Answer 1

Saving the video to the documents directory is as follows:

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

    NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL];
    NSData *videoData = [NSData dataWithContentsOfURL:videoURL];
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *tempPath = [documentsDirectory stringByAppendingFormat:@"/vid1.mp4"];
    BOOL success = [videoData writeToFile:tempPath atomically:NO];
    [picker dismissModalViewControllerAnimated:YES];
}