1767       mCallbackData(NULL),  in AudioOutput()
1805     delete mCallbackData;  in ~AudioOutput()
1999         if (mCallbackData != NULL) {  in deleteRecycledTrack_l()
2000             mCallbackData->setOutput(NULL);  in deleteRecycledTrack_l()
2001             mCallbackData->endTrackSwitch();  in deleteRecycledTrack_l()
2027         delete mCallbackData;  in deleteRecycledTrack_l()
2028         mCallbackData = NULL;  in deleteRecycledTrack_l()
2118         if ((mCallbackData == NULL && mCallback != NULL) ||  in open()
2119                 (mCallbackData != NULL && mCallback == NULL)) {  in open()
2240             if (mCallbackData != NULL) {  in open()
2241                 mCallbackData->setOutput(this);  in open()
2256     mCallbackData = newcbd;  in open()
2315     if (mCallbackData != NULL) {  in start()
2316         mCallbackData->endTrackSwitch();  in start()
2346             if (mCallbackData != NULL) {  in switchToNextOutput()
2349                 CallbackData *callbackData = mCallbackData;  in switchToNextOutput()
2355                 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) {  in switchToNextOutput()
2366                 if (!mCallbackData->tryBeginTrackSwitch()) {  in switchToNextOutput()
2388                 delete mNextOutput->mCallbackData;  in switchToNextOutput()
2389                 mNextOutput->mCallbackData = mCallbackData;  in switchToNextOutput()
2396                 mCallbackData = NULL;  // destruction handled by mNextOutput  in switchToNextOutput()
2400                 if (mCallbackData != NULL) {  in switchToNextOutput()
2401                     mCallbackData->endTrackSwitch();  // release lock for callbacks before close.  in switchToNextOutput()