Video Player -- Gotta See This !

[wrightph]

Hey Everyone,

I ran into an issue with the iPhone (2.2.1) MediaPlayer that I haven't been able to resolve.

I created a simple ViewController project with a single press the play button to play the video.

The glitch is that if you press play and then immediately press "done" it takes you back to the button and the music will begin playing (if you wait a minute) and you press play to lock up the app.

It must have something to do with the "preloading" of the video.

Any thoughts on this one?

Phil

----



#import "VideoViewController.h"
#import <MediaPlayer/MediaPlayer.h>

@implementation VideoViewController
@synthesize moviePlayer;

-(void)viewDidLoad {
if(!moviePlayer) {
//moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[self bundleURL]];
moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[self movieURL]];
}
}

-(IBAction)playVideo {
[moviePlayer play];

[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(moviePlayBackDidFinish
name:MPMoviePlayerPlaybackDidFinishNotification
object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(moviePreloadDidFinish
name:MPMoviePlayerContentPreloadDidFinishNotificat ion
object:nil];
}

-(void) moviePlayBackDidFinishid)sender {
NSLog(@"playback stop");
[moviePlayer stop];
}

-(void) moviePreloadDidFinishid)sender {
NSLog(@"preload");
}

- (NSURL *)movieURL {
return [NSURL URLWithString: @"http://code.agilephil.com/fox.m4v"];
//return [NSURL URLWithString: @"http://code.agilephil.com/video/iphone.m4v"];
}

- (NSURL *)bundleURL {
NSString *moviePath = [[NSBundle mainBundle] pathForResource:@"fox" ofType:@"m4v"];
return [NSURL fileURLWithPath:moviePath];
}

- (void)dealloc {
[moviePlayer release];
[super dealloc];
}

@end

[wrightph]

Hi!

Also, you can download at
http://code.agilephil.com/code/video.zip

Still no resolution.. submitted bug to apple.

[PipoDeClown]

Hi,

I'm having the exact same problem. The movieplayer keeps playing the movie in the background (I can't see it, but I hear the sound playing) after the user has exited the video via the 'done' button while it was buffering.

When I perform the same action (done) when the movie is playing it acts totally normal.

So somehow... the player doesn't stop the movie when pressing done only in situations where it is still buffering.

Already found a solution? Anybody some tips?

[mnemonic_fx]

It works totally fine here

[PipoDeClown]

Originally Posted by mnemonic_fx

It works totally fine here

Ok.. I'm happy for you! Any idea what I could've done wrong so that my version doesn't work?

[mnemonic_fx]

Try to set the Base SDK to 3.0, and set the deployment target to whatever you want.

But, I don't see the preload notification.

[PipoDeClown]

Originally Posted by mnemonic_fx

Try to set the Base SDK to 3.0, and set the deployment target to whatever you want.

But, I don't see the preload notification.

Thanks for the tip! Going to try that one.

Also found this thread:
MPMoviePlayerController vs. UIMoviePlayerController?

Will try the movie export from quicktime to see if the videoformat was wrong.
Will try releasing the movieplayer before and after playback.

Will post results later on... if someone has some other tips they're welcome!

[PipoDeClown]

All the above doesn't seem to help. Anybody any idea?

[mnemonic_fx]

I download the code from agilephil, and it works as expected, so I'm not sure which part is wrong in your case, or what is the exact behaviors do you expect ?

[PipoDeClown]

Originally Posted by mnemonic_fx

I download the code from agilephil, and it works as expected, so I'm not sure which part is wrong in your case, or what is the exact behaviors do you expect ?

After some mind-breaking nights we decided to stop and try the bare minimum: apple's sample code for the movieplayer. It exhibits the exact same bug as described in this thread above.

Will submit the bug to apple too. Guess the more bug reports on this particular one the sooner it will get fixed.

What also didn't help is that the buggy behaviour appears almost random. Couldn't recreate it every time, but often enough to be annoying.

(To recap the bug: when pressing 'done' during the buffering of a movie, the object is not killed. Therefore, the sound will resume playing anywhere in the app although you already left the video fullscreen view and maybe have navigated to another view.)

[ZunePod]

Originally Posted by wrightph

Hey Everyone,

I ran into an issue with the iPhone (2.2.1) MediaPlayer that I haven't been able to resolve.

I created a simple ViewController project with a single press the play button to play the video.

The glitch is that if you press play and then immediately press "done" it takes you back to the button and the music will begin playing (if you wait a minute) and you press play to lock up the app.

It must have something to do with the "preloading" of the video.

Any thoughts on this one?

Phil

----

#import "VideoViewController.h"
#import <MediaPlayer/MediaPlayer.h>

@implementation VideoViewController
@synthesize moviePlayer;

-(void)viewDidLoad {
if(!moviePlayer) {
//moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[self bundleURL]];
moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[self movieURL]];
}
}

-(IBAction)playVideo {
[moviePlayer play];

[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(moviePlayBackDidFinish:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(moviePreloadDidFinish:)
name:MPMoviePlayerContentPreloadDidFinishNotificat ion
object:nil];
}

-(void) moviePlayBackDidFinish:(id)sender {
NSLog(@"playback stop");
[moviePlayer stop];
}

-(void) moviePreloadDidFinish:(id)sender {
NSLog(@"preload");
}

- (NSURL *)movieURL {
return [NSURL URLWithString: @"http://code.agilephil.com/fox.m4v"];
//return [NSURL URLWithString: @"http://code.agilephil.com/video/iphone.m4v"];
}

- (NSURL *)bundleURL {
NSString *moviePath = [[NSBundle mainBundle] pathForResource:@"fox" ofType:@"m4v"];
return [NSURL fileURLWithPath:moviePath];
}

- (void)dealloc {
[moviePlayer release];
[super dealloc];
}

@end

Use code tags.

[ghanalupo]

So can we take it that this is a bug given that Apple's code sample does the same thing?

I can load the video OK and it plays but even if I let it play full cycle if I run it again I get a black screen but with audio, if I play it after that I get flashing video?

I am sure this was not the case in 2.2.1 which I am trying to find my code I used that used to work ok!