处理与音频队列中断 [英] Handling interruptions with Audio queue

问题描述

我开发的音频流光并宣布中断监听器保存状态的一首歌，当中断发生 - 就像来电或短信

I am developing an audio streamer and have declared an interruption listener to save state of a song when an interruption occurs - like an incoming call or an sms.

下面是相关code

在我的AppDelegate，我有这个

In my AppDelegate, I have this

AudioSessionInitialize (NULL, NULL, interruptionListenerCallback, self);
AudioSessionSetActive(YES);

这是中断监听器是什么样子

This is what the interruption listener looks like

void interruptionListenerCallback (void *inUserData, UInt32 interruptionState) {
// This callback, being outside the implementation block, needs a reference 
//to the AudioPlayer object
MyPlayer *player = (MyPlayer *)inUserData;

if (interruptionState == kAudioSessionBeginInterruption) {
	if ([player audioStreamer]) {
		// if currently playing, pause
		[player pausePlayback];
		player.interruptedOnPlayback = YES;
	}

} else if ((interruptionState == kAudioSessionEndInterruption) && player.interruptedOnPlayback) {
	// if the interruption was removed, and the app had been playing, resume playback
	[player resumePlayback];
	player.interruptedOnPlayback = NO;
}

}

当我接到电话中断监听器被调用，如果用户拒绝呼叫也被称为播放恢复方法。但被称为resumePlayback方法之前，我在控制台AudioQueueEnqueueBuffer得到这个错误

When I get a phone call the interruption listener is called and if the user declines the call the playback resume method is also called. But before the resumePlayback method is called, I get this error in the console for AudioQueueEnqueueBuffer

错误： TCA 错误INT： 560030580

有没有人对如何流音频文件时要正确处理音频中断的想法。

Does anyone have an idea of how to correctly handle audio interruptions when streaming audio files.

感谢。

推荐答案

此链接显示的问题是什么。可以帮助别人。

This link shows what the problem is. Might help someone.

https://devforums.apple.com/message/31758#31758

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