Crash in audiooutput demo when switching output

-waveOut callback was calling into class during destruction.
Changed to wait until close of waveOut/waveIn before returning from
destructor.
-Reduced default buffer on wince implementation.
-Added error checking on buffer allocation.

Task-number:261049, 261053
Reviewed-by:Bill King

1 files changed, 1 insertions, 0 deletions

diff --git a/src/multimedia/audio/qaudiooutput_win32_p.h b/src/multimedia/audio/qaudiooutput_win32_p.h
index 16c71dd..68f418e 100644
--- a/src/multimedia/audio/qaudiooutput_win32_p.h
+++ b/src/multimedia/audio/qaudiooutput_win32_p.h
@@ -132,6 +132,7 @@ private:
     MMRESULT result;
     WAVEHDR header;
     WAVEHDR* waveBlocks;
+    volatile bool finished;
     volatile int waveFreeBlockCount;
     int waveCurrentBlock;
     char* audioBuffer;