Decouples DecoderState from the Decoder and makes DecoderState inherit

from Module so that Decoder can function independent of DecoderSTate and
DecoderState can more cleanly interface with other modules. 

Resolves issue with LTR-type decoders where the AudioModule was
filtering demodulated audio buffers before the decoder received the
audio - demodulated audio buffers are now copied before creating
AudioPackets.

src/module/decode/ltrstandard/LTRStandardDecoder.java

@@ -39,8 +39,6 @@ public class LTRStandardDecoder extends Decoder implements IRealBufferListener
 	public LTRStandardDecoder( AliasList aliasList,
 							   MessageDirection direction )
 	{
-		super( new LTRStandardDecoderState( aliasList ) );
-
 		mLTRFSKDecoder = new LTRFSKDecoder();
 
 		if( direction == MessageDirection.OSW )
@@ -74,4 +72,19 @@ public class LTRStandardDecoder extends Decoder implements IRealBufferListener
 	{
 		return mLTRFSKDecoder;
 	}
+
+	@Override
+	public void reset()
+	{
+	}
+
+	@Override
+	public void start()
+	{
+	}
+
+	@Override
+	public void stop()
+	{
+	}
 }

src/module/decode/ltrstandard/LTRStandardDecoderPanel.java

@@ -38,9 +38,10 @@ public class LTRStandardDecoderPanel extends DecoderPanel
 
     private JLabel mLCN = new JLabel( "LCN:" );
     
-	public LTRStandardDecoderPanel( SettingsManager settingsManager, LTRStandardDecoder decoder )
+	public LTRStandardDecoderPanel( SettingsManager settingsManager, 
+									LTRStandardDecoderState decoderState )
 	{
-		super( settingsManager, decoder );
+		super( settingsManager, decoderState );
 		
 		init();
 	}
@@ -71,9 +72,9 @@ public class LTRStandardDecoderPanel extends DecoderPanel
 		add( mLCN, "wrap" );
 	}
 	
-	private LTRStandardDecoderState getDecoderState()
+	public LTRStandardDecoderState getDecoderState()
 	{
-		return (LTRStandardDecoderState)getDecoder().getDecoderState();
+		return (LTRStandardDecoderState)super.getDecoderState();
 	}
 
     @Override

src/module/decode/ltrstandard/LTRStandardDecoderState.java

@@ -25,6 +25,7 @@ import java.util.Iterator;
 import java.util.TreeSet;
 
 import message.Message;
+import module.decode.DecoderType;
 import module.decode.event.CallEvent.CallEventType;
 import module.decode.ltrnet.LTRCallEvent;
 import module.decode.state.ChangedAttribute;
@@ -56,7 +57,23 @@ public class LTRStandardDecoderState extends DecoderState
 	{
 		super( aliasList );
 	}
-	
+
+	@Override
+	public DecoderType getDecoderType()
+	{
+		return DecoderType.LTR_STANDARD;
+	}
+
+	@Override
+	public void start()
+	{
+	}
+
+	@Override
+	public void stop()
+	{
+	}
+
 	private LTRCallEvent getCurrentCallEvent()
 	{
 		return (LTRCallEvent)mCurrentCallEvent;
@@ -109,7 +126,8 @@ public class LTRStandardDecoderState extends DecoderState
 	                    		if( current == null )
 	                    		{
 	                    			mCurrentCallEvent = 
-    	                        		new LTRCallEvent.Builder( CallEventType.CALL )
+    	                        		new LTRCallEvent.Builder( 
+    	                        				DecoderType.LTR_STANDARD, CallEventType.CALL )
         	                            .to( ltr.getTalkgroupID() )
         	                            .aliasList( getAliasList() )
         	                            .channel( String.valueOf( ltr.getChannel() ) )