Demod Analyzer: fixed sample rate handling. Fixes #931

sdrbase/channel/channelapi.h

@@ -28,9 +28,9 @@
 
 #include "export.h"
 #include "pipes/pipeendpoint.h"
+#include "util/messagequeue.h"
 
 class DeviceAPI;
-class MessageQueue;
 
 namespace SWGSDRangel
 {
@@ -64,6 +64,7 @@ public:
 
     virtual void setMessageQueueToGUI(MessageQueue *queue) { m_guiMessageQueue = queue; }
     MessageQueue *getMessageQueueToGUI() { return m_guiMessageQueue; }
+    MessageQueue *getChannelMessageQueue() { return &m_channelMessageQueue; } //!< Get the queue for plugin communication
 
     /**
      * API adapter for the channel settings GET requests
@@ -130,7 +131,8 @@ public:
     virtual qint64 getStreamCenterFrequency(int streamIndex, bool sinkElseSource) const = 0;
 
 protected:
-    MessageQueue *m_guiMessageQueue;  //!< Input message queue to the GUI
+    MessageQueue *m_guiMessageQueue;    //!< Input message queue to the GUI
+    MessageQueue m_channelMessageQueue; //!< Input message queue for inter plugin communication
 
 private:
     StreamType m_streamType;

sdrbase/maincore.cpp

@@ -48,6 +48,7 @@ MESSAGE_CLASS_DEFINITION(MainCore::MsgDeleteFeature, Message)
 MESSAGE_CLASS_DEFINITION(MainCore::MsgChannelReport, Message)
 MESSAGE_CLASS_DEFINITION(MainCore::MsgChannelSettings, Message)
 MESSAGE_CLASS_DEFINITION(MainCore::MsgChannelDemodReport, Message)
+MESSAGE_CLASS_DEFINITION(MainCore::MsgChannelDemodQuery, Message)
 MESSAGE_CLASS_DEFINITION(MainCore::MsgMapItem, Message)
 MESSAGE_CLASS_DEFINITION(MainCore::MsgPacket, Message)
 MESSAGE_CLASS_DEFINITION(MainCore::MsgTargetAzimuthElevation, Message)

sdrbase/maincore.h

@@ -441,6 +441,20 @@ public:
         { }
     };
 
+    class SDRBASE_API MsgChannelDemodQuery : public Message {
+        MESSAGE_CLASS_DECLARATION
+
+    public:
+        static MsgChannelDemodQuery* create() {
+            return new MsgChannelDemodQuery();
+        }
+
+    private:
+        MsgChannelDemodQuery() :
+            Message()
+        { }
+    };
+
     class SDRBASE_API MsgChannelDemodReport : public Message {
         MESSAGE_CLASS_DECLARATION