I am developing an audio streaming app with the old AudioStreamer from Matt and i am trying to make the interruption (when receive a call) by using :

```
- (void)MyAudioSessionInterruptionListener(void *inClientData, UInt32 inInterruptionState)
{
        AudioStreamer *streamer = (AudioStreamer*)inClientData;
        if (inInterruptionState == kAudioSessionBeginInterruption)
        {
            [streamer stop];    
            NSLog(@"kAudioSessionBeginInterruption");
        }
        else if (inInterruptionState == kAudioSessionEndInterruption)
        {
            [self playpause]; 
            NSLog(@"kAudioSessionEndInterruption");
        }
}

```

My problem is I am trying to call the function "playpause" with the [self playpause]; but I get an error playpause undeclared !

How can I declare playpause inside MyAudioSessionInterruptionListener ?