1596       mCallbackData(NULL),  in AudioOutput()
1634     delete mCallbackData;  in ~AudioOutput()
1828         if (mCallbackData != NULL) {  in deleteRecycledTrack_l()
1829             mCallbackData->setOutput(NULL);  in deleteRecycledTrack_l()
1830             mCallbackData->endTrackSwitch();  in deleteRecycledTrack_l()
1856         delete mCallbackData;  in deleteRecycledTrack_l()
1857         mCallbackData = NULL;  in deleteRecycledTrack_l()
1947         if ((mCallbackData == NULL && mCallback != NULL) ||  in open()
1948                 (mCallbackData != NULL && mCallback == NULL)) {  in open()
2067             if (mCallbackData != NULL) {  in open()
2068                 mCallbackData->setOutput(this);  in open()
2083     mCallbackData = newcbd;  in open()
2142     if (mCallbackData != NULL) {  in start()
2143         mCallbackData->endTrackSwitch();  in start()
2173             if (mCallbackData != NULL) {  in switchToNextOutput()
2176                 CallbackData *callbackData = mCallbackData;  in switchToNextOutput()
2182                 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) {  in switchToNextOutput()
2193                 if (!mCallbackData->tryBeginTrackSwitch()) {  in switchToNextOutput()
2215                 delete mNextOutput->mCallbackData;  in switchToNextOutput()
2216                 mNextOutput->mCallbackData = mCallbackData;  in switchToNextOutput()
2223                 mCallbackData = NULL;  // destruction handled by mNextOutput  in switchToNextOutput()
2227                 if (mCallbackData != NULL) {  in switchToNextOutput()
2228                     mCallbackData->endTrackSwitch();  // release lock for callbacks before close.  in switchToNextOutput()