comparison audio/AudioCallbackPlaySource.cpp @ 580:298d864113f0 3.0-integration

Fix flickery level meters

     m_exiting(false),
     m_lastModelEndFrame(0),
     m_ringBufferSize(DEFAULT_RING_BUFFER_SIZE),
     m_outputLeft(0.0),
     m_outputRight(0.0),
+    m_levelsSet(false),
     m_auditioningPlugin(0),
     m_auditioningPluginBypassed(false),
     m_playStartFrame(0),
     m_playStartFramePassed(false),
     m_timeStretcher(0),

 void
 AudioCallbackPlaySource::setOutputLevels(float left, float right)
 {
     if (left > m_outputLeft) m_outputLeft = left;
     if (right > m_outputRight) m_outputRight = right;
+    m_levelsSet = true;
 }
 
 bool
 AudioCallbackPlaySource::getOutputLevels(float &left, float &right)
 {
     left = m_outputLeft;
     right = m_outputRight;
+    bool valid = m_levelsSet;
     m_outputLeft = 0.f;
     m_outputRight = 0.f;
-    return true;
+    m_levelsSet = false;
+    return valid;
 }
 
 void
 AudioCallbackPlaySource::setSystemPlaybackSampleRate(int sr)
 {