1797       mCallbackData(NULL),  in AudioOutput()
1834     delete mCallbackData;  in ~AudioOutput()
2027         if (mCallbackData != NULL) {  in deleteRecycledTrack_l()
2028             mCallbackData->setOutput(NULL);  in deleteRecycledTrack_l()
2029             mCallbackData->endTrackSwitch();  in deleteRecycledTrack_l()
2055         delete mCallbackData;  in deleteRecycledTrack_l()
2056         mCallbackData = NULL;  in deleteRecycledTrack_l()
2146         if ((mCallbackData == NULL && mCallback != NULL) ||  in open()
2147                 (mCallbackData != NULL && mCallback == NULL)) {  in open()
2272             if (mCallbackData != NULL) {  in open()
2273                 mCallbackData->setOutput(this);  in open()
2288     mCallbackData = newcbd;  in open()
2347     if (mCallbackData != NULL) {  in start()
2348         mCallbackData->endTrackSwitch();  in start()
2378             if (mCallbackData != NULL) {  in switchToNextOutput()
2381                 CallbackData *callbackData = mCallbackData;  in switchToNextOutput()
2387                 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) {  in switchToNextOutput()
2398                 if (!mCallbackData->tryBeginTrackSwitch()) {  in switchToNextOutput()
2420                 delete mNextOutput->mCallbackData;  in switchToNextOutput()
2421                 mNextOutput->mCallbackData = mCallbackData;  in switchToNextOutput()
2428                 mCallbackData = NULL;  // destruction handled by mNextOutput  in switchToNextOutput()
2432                 if (mCallbackData != NULL) {  in switchToNextOutput()
2433                     mCallbackData->endTrackSwitch();  // release lock for callbacks before close.  in switchToNextOutput()