AVPlayer 音频静音

Question

我是Xcode的新手，请帮帮我。我在视图控制器中添加了 AVPlayer IOS app.It 在视图中显示视频但没有音频。任何帮助任何人提前谢谢

Answer 1

你的音频静音的原因是你可能没有初始化 AVAudioSession 检查这个..

 AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayback error:nil];


UIView *myView = previewView;

videoController  = [[MPMoviePlayerViewController alloc]initWithContentURL:videoPlayUrl];
videoController.view.frame = myView.bounds;

[videoController.view setBounds:previewView.bounds];
videoController.moviePlayer.controlStyle = MPMovieControlStyleNone;
videoController.moviePlayer.scalingMode = MPMovieScalingModeFill;
videoController.moviePlayer.shouldAutoplay = NO;
videoController.view.clipsToBounds = YES;
[previewView.layer addSublayer:videoController.view.layer];

[videoController.moviePlayer prepareToPlay];

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