1540       mCallbackData(NULL),  in AudioOutput()
1574     delete mCallbackData;  in ~AudioOutput()
1768         if (mCallbackData != NULL) {  in deleteRecycledTrack_l()
1769             mCallbackData->setOutput(NULL);  in deleteRecycledTrack_l()
1770             mCallbackData->endTrackSwitch();  in deleteRecycledTrack_l()
1796         delete mCallbackData;  in deleteRecycledTrack_l()
1797         mCallbackData = NULL;  in deleteRecycledTrack_l()
1881         if ((mCallbackData == NULL && mCallback != NULL) ||  in open()
1882                 (mCallbackData != NULL && mCallback == NULL)) {  in open()
1998             if (mCallbackData != NULL) {  in open()
1999                 mCallbackData->setOutput(this);  in open()
2014     mCallbackData = newcbd;  in open()
2069     if (mCallbackData != NULL) {  in start()
2070         mCallbackData->endTrackSwitch();  in start()
2100             if (mCallbackData != NULL) {  in switchToNextOutput()
2103                 CallbackData *callbackData = mCallbackData;  in switchToNextOutput()
2109                 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) {  in switchToNextOutput()
2120                 if (!mCallbackData->tryBeginTrackSwitch()) {  in switchToNextOutput()
2142                 delete mNextOutput->mCallbackData;  in switchToNextOutput()
2143                 mNextOutput->mCallbackData = mCallbackData;  in switchToNextOutput()
2150                 mCallbackData = NULL;  // destruction handled by mNextOutput  in switchToNextOutput()
2154                 if (mCallbackData != NULL) {  in switchToNextOutput()
2155                     mCallbackData->endTrackSwitch();  // release lock for callbacks before close.  in switchToNextOutput()