I have implemented the route change like this and it seems to work. Just replace sessionPropertyListener
with the code below and add updateAudioRoute
.
void sessionPropertyListener(void * inClientData,
AudioSessionPropertyID inID,
UInt32 inDataSize,
const void * inData){
if (inID == kAudioSessionProperty_AudioRouteChange)
{
Novocaine *sm = (Novocaine *)inClientData;
[sm checkSessionProperties];
[sm updateAudioRoute];
}
}
//Quick and dirty way to override the audioRoute whenever the audioRoute is changed.
- (void)updateAudioRoute {
CFStringRef newRoute;
UInt32 size = sizeof(CFStringRef);
CheckError(AudioSessionGetProperty(kAudioSessionProperty_AudioRoute, &size, &newRoute),
"couldn't get new audio route");
if (newRoute)
{
CFShow(newRoute);
if (CFStringCompare(newRoute, CFSTR("ReceiverAndMicrophone"), (UInt32)NULL)== kCFCompareEqualTo)
{
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,sizeof (audioRouteOverride),&audioRouteOverride);
}
else if (CFStringCompare(newRoute, CFSTR("HeadsetInOut"), (UInt32)NULL) == kCFCompareEqualTo)
{
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_None;
AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,sizeof (audioRouteOverride),&audioRouteOverride);
}
}
}