x0z7blog01的部落格

用下面的代碼播放音頻：

 -(IBAction)hearAudioMessage:(id)sender

{

ChatObject * obj = [chatArray objectAtIndex:rowIndexInt];

 NSString *str=[NSString stringWithFormat:@"http://www.myserver.com/files/%@",obj.voiceFileString];

    self.palyer=[[AVPlayer alloc] initWithURL:[NSURL URLWithString:str]];

    [self.palyer play];

}

我想在播放期間能靜音。

用瞭下面的代碼，但是木有實現：

NSArray *audioTracks = [asset tracksWithMediaType:AVMediaTypeAudio];



NSMutableArray *allAudioParams = [NSMutableArray array];

for (AVAssetTrack *track in audioTracks) {

    AVMutableAudioMixInputParameters *audioInputParams =

    [AVMutableAudioMixInputParameters audioMixInputParameters];

    [audioInputParams setVolume:0.0 atTime:kCMTimeZero];

    [audioInputParams setTrackID:[track trackID]];

    [allAudioParams addObject:audioInputParams];

}

AVMutableAudioMix *audioMix = [AVMutableAudioMix audioMix];

[audioMix setInputParameters:allAudioParams];



AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:asset];

[playerItem setAudioMix:audioMix];

不知道應該怎麼能實現呢？

• 2

很簡單的，用下面這行代碼靜音：

[player pause];

(0)

Orignal From: 如何在AVPlayer播放實現靜音