Ribbit Application is Freezing upon sending a video!

#import "InboxViewController.h"



@interface InboxViewController ()

@end

@implementation InboxViewController


- (void)viewDidLoad
{
    [super viewDidLoad];
    [self.tableView reloadData];
    self.moviePlayer = [[MPMoviePlayerController alloc] init];
    PFUser *currentUser = [PFUser currentUser];
    if (currentUser) {
        NSLog(@"Current user: %@", currentUser.username);
    } else {

        [self performSegueWithIdentifier:@"showLogin" sender:self];
    }



}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    PFQuery *query = [PFQuery queryWithClassName:@"Messages"];
    [query whereKey:@"recipientIds" equalTo:[[PFUser currentUser] objectId]];
    [query orderByDescending:@"createdAt"];
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
        if (error) {
            NSLog(@"Error: %@ %@", error, [error userInfo]);
                  } else {
                      //We found messages!
                      self.messages = objects;
                      [self.tableView reloadData];
                      NSLog(@"Retrieved %lu messages", (unsigned long)[self.messages count]);
                  }
    }];

}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{

    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

    // Return the number of rows in the section.
    return [self.messages count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

    // Configure the cell...

    PFObject *message = [self.messages objectAtIndex:indexPath.row];
    cell.textLabel.text = [message objectForKey:@"senderName"];

    NSString *fileType = [message objectForKey:@"fileType"];
    if ([fileType isEqualToString:@"image"]) {
        cell.imageView.image = [UIImage imageNamed:@"icon_image"];
    } else {
        cell.imageView.image = [UIImage imageNamed:@"icon_video"];
    }

    return cell;
}

#pragma mark - Table View Delegate

- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    self.selectedMessage = [self.messages objectAtIndex:indexPath.row];
    NSString *fileType = [self.selectedMessage objectForKey:@"fileType"];
    if ([fileType isEqualToString:@"image"]) {
        [self performSegueWithIdentifier:@"showImage" sender:self];
         }
         else { //filetype is video
             PFFile *videoFile = [self.selectedMessage objectForKey: @"file"];
             NSURL *fileUrl = [NSURL URLWithString:videoFile.url];
             self.moviePlayer.contentURL = fileUrl;
             [self.moviePlayer prepareToPlay];


             // Add it to the view controller
             [self.view addSubview:self.moviePlayer.view];
             [self.moviePlayer setFullscreen:YES animated:YES];

    }

    // Delete it!
    NSMutableArray *recipientIds = [NSMutableArray arrayWithArray:[self.selectedMessage objectForKey:@"recipientIds"]];
    NSLog(@"Recipients: %@", recipientIds);

    if ([recipientIds count] == 1) {
        //Last recipient - delete!
        [self.selectedMessage deleteInBackground];
    } else {

        //Remove the recipient!
        [recipientIds removeObject:[[PFUser currentUser] objectId]];
        [self.selectedMessage setObject:recipientIds forKey:@"recipientIds"];
        [self.selectedMessage saveInBackground];
    }
}

- (IBAction)logout:(id)sender {

    [PFUser logOut];
    [self performSegueWithIdentifier:@"showLogin" sender:self];
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([segue.identifier isEqualToString:@"showLogin"]) {
        [segue.destinationViewController setHidesBottomBarWhenPushed:YES];
    }
    else if  ([segue.identifier isEqualToString:@"showImage"]) {
        [segue.destinationViewController setHidesBottomBarWhenPushed:YES];
        ImageViewController *imageViewController = (ImageViewController *)segue.destinationViewController;
        imageViewController.message = self.selectedMessage;
    }

}
@end