AVPlayer音频静音

Question

我是Xcode的新手，请帮帮我。我在IOS应用程序的View Controller中添加了AVPlayer。它在视图中显示视频，但没有音频。任何帮助任何人提前感谢

Answer 1

您的音频之所以静音，是因为您可能没有初始化AVAudioSession检查一下。。

 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];