Added a mutex. Still have strange crashes.

audiohandler.cpp

@@ -670,6 +670,8 @@ void audioHandler::incomingAudio(audioPacket inPacket)
 
     // Begin plugin code:
 
+    pluginMutex.lock();
+
     //
     // Note, size of qint16 array is data.size() / 2 .
     //
@@ -680,22 +682,15 @@ void audioHandler::incomingAudio(audioPacket inPacket)
     QByteArray pluginOutputQBA;
     qDebug() << "made byte array.";
 
-    pluginOutputQBA.reserve(inPacket.data.size());
-    pluginOutputQBA.resize(inPacket.data.size());
+//    pluginOutputQBA.reserve(inPacket.data.size());
+//    pluginOutputQBA.resize(inPacket.data.size());
     pluginOutputQBA.fill('0', inPacket.data.size());
 
-    qDebug(logAudio()) << "plugin output QBA size: " << pluginOutputQBA.length();
+//    qDebug(logAudio()) << "plugin output QBA size: " << pluginOutputQBA.length();
 
-    qint16* pluginOutput = (qint16*)pluginOutputQBA.data();
+    volatile qint16* pluginOutput = (qint16*)pluginOutputQBA.data();
 
 
-//    uint16_t BUF_SIZE = inPacket.data.size() / 2;
-
-//    LADSPA_Data pInStereoBuffer[2*BUF_SIZE];
-//    LADSPA_Data pOutStereoBuffer[2*BUF_SIZE];
-//    LADSPA_Data pInBuffer[2][BUF_SIZE];
-//    LADSPA_Data pOutBuffer[2][BUF_SIZE];
-
     // Copy data from "out" to pInBuffer:
     // copyDataIn();
 
@@ -713,17 +708,21 @@ void audioHandler::incomingAudio(audioPacket inPacket)
     runPlugin();
 
     // copy data back out from pOutBuffer to inPacket.data
+    // pOutBuffer[0] has size BUF_SIZE/2
+    // pOutBuffer[1] has size BUF_SIZE/2
+
+    // Maybe the issue is here?
 
-    // This is wrong:
     for (int n = 0; n+1 < BUF_SIZE; n += 2) {
 
-        pluginOutput[n] = (pOutBuffer[0][n] + 1) * max;
-        pluginOutput[n+1] = (pOutBuffer[1][n] + 1) * max;
+        pluginOutput[n] = (pOutBuffer[0][n/2] + 1) * max;
+        pluginOutput[n+1] = (pOutBuffer[1][n/2] + 1) * max;
     }
 
     // copyDataOut();
 
     // --- End plugin code.
+    pluginMutex.unlock();
 
 	return;
 }

audiohandler.h

@@ -182,6 +182,7 @@ private:
     unsigned int ratioDen;
 
     // --- Plugin support:
+    QMutex pluginMutex;
     uint16_t SAMPLE_RATE;
     uint16_t BUF_SIZE;
     const LADSPA_Descriptor * psDescriptor;