Initial commit of redesigned internal processing and audio management.

Note: Several of the decoders are currently non-functioning in this
commit.  If you want the latest functioning codebase, please checkout
the commit prior to this one.  All decoders will eventually be updated
with this new architecture.

Currently broken:
- Logging and recording
- Aux decoders (Fleetsync/MDC/LoJack/Tait)
- LTR/Passport decoders

Changes in this commit:
- Module architecture for decoders and components with central
provisioning by the DecoderFactory
- Transition from Complex sample stream processing to float buffer
processing for improved memory management
- Redesigned filter structures - to support buffers and streams
- Resolved several memory leak issues
- Universal sharing of the thread pool manager
- Added centralized audio management with call/user prioritization and
new gui with mute/volume controls
- Embedded audio metadata for eventual streaming support
- Redesigned ProcessingChain to support independent re-use
- Added new TrafficChannelManager to handle traffic channel allocations
- Traffic Channel pool size and Call timeout available in P25 and
MPT1327 configs
- Redesigned channel and decoder gui components

src/module/decode/p25/message/P25Message.java

@@ -0,0 +1,213 @@
+package module.decode.p25.message;
+
+import java.text.SimpleDateFormat;
+
+import map.Plottable;
+import message.Message;
+import module.decode.p25.reference.DataUnitID;
+import alias.Alias;
+import alias.AliasList;
+import bits.BinaryMessage;
+import edac.CRC;
+
+public class P25Message extends Message
+{
+    public enum DuplexMode { HALF, FULL };
+    public enum SessionMode { PACKET, CIRCUIT };
+	
+	public static final int[] NAC = { 0,1,2,3,4,5,6,7,8,9,10,11 };
+	public static final int[] DUID = { 12,13,14,15 };
+	public static final int[] BCH = { 16,17,18,19,20,21,22,23,24,25,26,27,28,29,
+		30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,
+		54,55,56,57,58,59,60,61,62,63 };
+	
+	protected SimpleDateFormat mTimeDurationFormat = 
+							new SimpleDateFormat( "HH:mm:ss.SSS");
+	
+	protected BinaryMessage mMessage;
+	protected DataUnitID mDUID;
+	protected AliasList mAliasList;
+	
+	protected CRC[] mCRC;
+	
+	public P25Message( BinaryMessage message, 
+	                   DataUnitID duid,
+	                   AliasList aliasList )
+	{
+		super();
+		
+		mMessage = message;
+		mDUID = duid;
+		mAliasList = aliasList;
+	}
+	
+	public CRC[] getCRCResults()
+	{
+		return mCRC;
+	}
+	
+	public BinaryMessage getSourceMessage()
+	{
+		return mMessage;
+	}
+	
+	public AliasList getAliasList()
+	{
+		return mAliasList;
+	}
+	
+	public String getNAC()
+	{
+		return mMessage.getHex( NAC, 3 );
+	}
+	
+	public DataUnitID getDUID()
+	{
+		return mDUID;
+	}
+	
+	@Override
+    public String getErrorStatus()
+    {
+		if( mCRC == null )
+		{
+			return "UNKNOWN";
+		}
+		
+		return CRC.format( mCRC );
+    }
+
+	@Override
+    public String getMessage()
+    {
+		StringBuilder sb = new StringBuilder();
+		
+		sb.append( "NAC:" );
+		sb.append( getNAC() );
+		sb.append( " " );
+		sb.append( getDUID().getLabel() );
+		
+	    return sb.toString();
+    }
+
+	@Override
+    public String getBinaryMessage()
+    {
+	    return mMessage.toString();
+    }
+
+	@Override
+    public String getProtocol()
+    {
+	    return "P25 Phase 1";
+    }
+
+	@Override
+    public String getEventType()
+    {
+	    return mDUID.name();
+    }
+
+	@Override
+    public String getFromID()
+    {
+	    return null;
+    }
+
+	@Override
+    public Alias getFromIDAlias()
+    {
+        if( mAliasList != null )
+        {
+            return mAliasList.getTalkgroupAlias( getFromID() );
+        }
+        
+        return null;
+    }
+
+	@Override
+    public String getToID()
+    {
+	    return null;
+    }
+
+	@Override
+    public Alias getToIDAlias()
+    {
+	    if( mAliasList != null )
+	    {
+	        return mAliasList.getTalkgroupAlias( getToID() );
+	    }
+	    
+	    return null;
+    }
+
+	@Override
+    public Plottable getPlottable()
+    {
+	    return null;
+    }
+
+	@Override
+    public String toString()
+    {
+	    return getMessage();
+    }
+
+	@Override
+    public boolean isValid()
+    {
+		if( mCRC != null )
+		{
+			for( CRC crc: mCRC )
+			{
+				if( crc == CRC.FAILED_CRC )
+				{
+					return false;
+				}
+			}
+		}
+		
+		return true;
+    }
+
+	/**
+	 * Calculates the frequency of the uplink channel using the channel number
+	 * and the IdentifierUpdate message.
+	 * 
+	 * @param iden - Identifier Update message
+	 * @param channel - channel number
+	 * @return - frequency in Hertz
+	 */
+	protected static long calculateUplink( IBandIdentifier iden, int channel )
+	{
+		long downlink = calculateDownlink( iden, channel );
+		
+		if( downlink > 0 && iden != null )
+		{
+			return downlink + iden.getTransmitOffset();
+		}
+		
+		return 0;
+	}
+	
+	/**
+	 * Calculates the frequency of the downlink channel using the channel number
+	 * and the IdentifierUpdate message.
+	 * 
+	 * @param iden - Identifier Update message
+	 * @param channel - channel number
+	 * @return - frequency in Hertz
+	 */
+	protected static long calculateDownlink( IBandIdentifier iden, int channel )
+	{
+		if( iden != null )
+		{
+			return iden.getBaseFrequency() + 
+					( channel * iden.getChannelSpacing() );
+		}
+		
+		return 0;
+	}
+	
+}