How to get thumbnails of a video saved in document directory - iphone

Question

I saved the captured video in document directory as shown below and now I want to display the thumbnails and play the same video.How to do this ?
- (void) imagePickerController: (UIImagePickerController *) picker didFinishPickingMediaWithInfo: (NSDictionary *) info
{
NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType];
[self dismissModalViewControllerAnimated:NO];
// Handle a movie capture
if (CFStringCompare ((__bridge_retained CFStringRef) mediaType, kUTTypeMovie, 0) == kCFCompareEqualTo)
{
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [documentPaths objectAtIndex:0];
NSString *movieName = [NSString stringWithFormat:#"%#.mov",[CoreDataFunctions getNameForVideoForDate:[CalendarFunctions getCurrentDateString]]];
NSString *moviePath = [documentsDir stringByAppendingPathComponent:movieName];
NSURL * movieURL = [info valueForKey:UIImagePickerControllerMediaURL];
NSData * movieData = [NSData dataWithContentsOfURL:movieURL];
NSLog(#"%#",moviePath);
if([movieData writeToFile:moviePath atomically:NO])
{
if(![CoreDataFunctions saveVideoInfoInDatabaseForDate:[CalendarFunctions getCurrentDateString]])
{
NSLog(#"Video was saved in doucment directory but could not be saved in core data");
}
}
else
{
NSLog(#"Video could not be saved to the document directry");
}
}
}

Answer 1

Get videos from doc dir like this
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSError * error;
NSArray *directoryContents = [[NSFileManager defaultManager]
contentsOfDirectoryAtPath:documentsDirectory error:&error];
//Take all images in NSMutableArray
NSMutableArray *arrVideoImages = [[NSMutableArray alloc]init];
for(NSString *strFile in directoryContents)
{
NSString *strVideoPath = [NSString stringWithFormat:#"%#/%#",documentsDirectory,strFile];
UIImage *img = [self getThumbNail:strVideoPath];
[arrVideoImages addObject:img];
}
Also add this method:
-(UIImage *)getThumbNail:(NSString)stringPath
{
NSURL *videoURL = [NSURL fileURLWithPath:stringPath];
MPMoviePlayerController *player = [[MPMoviePlayerController alloc] initWithContentURL:videoURL];
UIImage *thumbnail = [player thumbnailImageAtTime:1.0 timeOption:MPMovieTimeOptionNearestKeyFrame];
//Player autoplays audio on init
[player stop];
[player release];
return thumbnail;
}