Discard all DevSound buffers held when QAudioInput::suspend() called

Resuming recording causes buffers previously provided to the client
(via MDevSoundObserver::BufferToBeEmptied()) to be invalidated.
The buffers therefore must be discarded when recording is suspended.

Task-number: QTBUG-13058
Reviewed-by: Derick Hawcroft

1 files changed, 3 insertions, 4 deletions

diff --git a/src/multimedia/audio/qaudioinput_symbian_p.cpp b/src/multimedia/audio/qaudioinput_symbian_p.cpp
index 9ae4368..b837055 100644
--- a/src/multimedia/audio/qaudioinput_symbian_p.cpp
+++ b/src/multimedia/audio/qaudioinput_symbian_p.cpp
@@ -178,10 +178,9 @@ void QAudioInputPrivate::suspend()
         const qint64 samplesRecorded = getSamplesRecorded();
         m_totalSamplesRecorded += samplesRecorded;
 
-        if (m_devSoundBuffer) {
-            m_devSoundBufferQ.append(m_devSoundBuffer);
-            m_devSoundBuffer = 0;
-        }
+        m_devSoundBuffer = 0;
+        m_devSoundBufferQ.clear();
+        m_devSoundBufferPos = 0;
 
         setState(SymbianAudio::SuspendedState);
     }