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POiPhone MPMoviePlayerController lost sound while playing video on a real device
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  1. POiPhone MPMoviePlayerController lost sound while playing video on a real device
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    copied!<p>I am having issue with losing "video" sound while it was playing.</p> <p>I followed all the standards but the Video/Audio sometimes gets muted or just disappears at the end of the video file. I have no idea why. Does any know what might be the issue?</p> <p>This only happens when running the app on the real device, I can't reproduce the issue on the simulator.</p> <p>Could a "didReceiveMemory" warning cause this? I sometimes receive this message when it happens.</p> <p>Thank you for you help. Please see the details below.</p> <p>The video file is being streamed via a URL address, format in MPEG-4 Movie, size less than 6.2 MB.</p> <p>I have the following code:</p> <pre><code>- (IBAction) playMovie:(NSString*)theUrl setMovieType:(NSString *)theType setPlayOption:(int)theOption setSenderUIButton:(UIButton *) thisSender { NSString *getvdoUrl = [[NSString alloc] initWithString:theUrl]; NSURL *thisVdoURL = [NSURL URLWithString:getvdoUrl]; [getvdoUrl release]; getvdoUrl = nil; MPMoviePlayerController *movieplayer = [[MPMoviePlayerController alloc] initWithContentURL:thisVdoURL]; thisVdoURL = nil; if (movieplayer) { self.vdoPlayer = movieplayer; [movieplayer release]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:self.vdoPlayer]; [self.vdoPlayer play]; } } -(void) moviePlayBackDidFinish:(NSNotification*)theNotification { MPMoviePlayerController *movieplayer= [theNotification object]; [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:movieplayer]; movieplayer.initialPlaybackTime = 0.0; [movieplayer stop]; } </code></pre> <p>Following are the warning messages I received before the Video file start to play.</p> <blockquote> <p>warning: Unable to read symbols for "/Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.1.3 (7E18)/Symbols/System/Library/VideoDecoders/VCH263.videodecoder" (file not found).</p> <p>warning: Unable to read symbols for "/Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.1.3 (7E18)/Symbols/System/Library/VideoDecoders/H264H1.videodecoder" (file not found).</p> <p>warning: Unable to read symbols for "/Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.1.3 (7E18)/Symbols/System/Library/VideoDecoders/MP4VH1.videodecoder" (file not found).</p> <p>2010-03-29 16:57:25.830 .... v2[4663:207] setting file:///private/var/mobile/Applications/7DCB1FCC-7268-4551-B737-8B418CA4A07E/tmp/MediaCache/[html]</p> </blockquote>
 

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