Suppress overflow errors raised by Symbian DevSound during playback

When QAudioOutput::suspend() and QAudioOutput::resume() are called
repeatedly, with a short delay between each call, DevSound occasionally
raises a KErrOverflow error.  The backend previously translated this
into QAudio::IOError, causing the object to transition into the
QAudio::Stopped state.

This error can be safely ignored, with playback resuming as soon as
more audio data is provided to DevSound.  This patch therefore
suppresses the error.

Task-number: QTBUG-13059
Reviewed-by: Derick Hawcroft

1 files changed, 3 insertions, 0 deletions

diff --git a/src/multimedia/audio/qaudiooutput_symbian_p.cpp b/src/multimedia/audio/qaudiooutput_symbian_p.cpp
index 5054ae3..c8b6ecf 100644
--- a/src/multimedia/audio/qaudiooutput_symbian_p.cpp
+++ b/src/multimedia/audio/qaudiooutput_symbian_p.cpp
@@ -371,6 +371,9 @@ void QAudioOutputPrivate::devsoundPlayError(int err)
         else
             setState(SymbianAudio::IdleState);
         break;
+    case KErrOverflow:
+        // Silently consume this error when in playback mode
+        break;
     default:
         setError(QAudio::IOError);
         break;