Trying to play video using MPMoviePlayerController, only get audio - objective-c

Question

I want to play a video in my iPhone app. I used this code:
- (void)viewDidLoad
{
[super viewDidLoad];
NSURL *movieUrl = [NSURL fileURLWithPath:
[[NSBundle mainBundle] pathForResource:#"Myvideo"
ofType:#"mp4"]];
//create a new instance of MPMoviePlayerController
MPMoviePlayerController* myMovie=[[MPMoviePlayerController alloc]
initWithContentURL:movieUrl];
//disable scaling of our movie
myMovie.scalingMode = MPMovieScalingModeNone;
//don't show any controls
// myMovie.movieControlMode = MPMovieControlModeHidden;
//you can specify at which time the movie should
//start playing (default is 0.0)
myMovie.initialPlaybackTime = 2.0;
//register a callback method which will be called
//after the movie finished
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(movieFinished:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:myMovie];
//start the movie (asynchronous method)
[myMovie play];
// Do any additional setup after loading the view from its nib.
}
Only the sound works with this code. Can someone help me please?

Answer 1

You need to allocate a frame to your movie and add it to the view. See here.
So you can add:
[myMoview.view setFrame: self.view.bounds]; // player's frame must match parent's
[self.view addSubview:myMovie.view];

Answer 2

Apple Technical Q&A 1240:
MPMoviePlayerController plays movie audio but not video
Q: I'm able to successfully play movies using MPMoviePlayerController on iOS 3.1.3. When I run this same code on the iPad and on the iPhone with iOS 4 I can hear the movie audio, but the video is no longer displayed. What's going on?
A: Starting with iPhone iOS 3.2, calling the -play: method still starts playback of the movie but it does not ensure that the movie is visible. In order to display a movie, you must get the new view property from your MPMoviePlayerController object and add that view to your view hierarchy. Here's a code snippet:
Listing 1 How to add the MPMoviePlayerController view property to your view hierarchy to play a movie.
#import <UIKit/UIKit.h>
#import <MediaPlayer/MediaPlayer.h>
MPMoviePlayerController *player = [[MPMoviePlayerController alloc] initWithContentURL:movieURL];
[[player view] setFrame:[myView bounds]]; // size to fit parent view exactly
[myView addSubview:[player view]];
[player play];
See Important Porting Tip for Using the Media Player Framework and the MPMoviePlayerController Class Reference for more information.