[WIP] Updates the LTR-Standard and LTR-Net decoders to use a new LTR

decoder with a zero-crossing symbol timing error detector.  The new
decoder is optimized for 8 kHz FM demodulated audio produced by the
AudioModule.

src/main/java/io/github/dsheirer/sample/buffer/IReusableBufferListener.java

@@ -0,0 +1,23 @@
+/*******************************************************************************
+ * sdr-trunk
+ * Copyright (C) 2014-2018 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by  the Free Software Foundation, either version 3 of the License, or  (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; without even the implied
+ * warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License  along with this program.
+ * If not, see <http://www.gnu.org/licenses/>
+ *
+ ******************************************************************************/
+package io.github.dsheirer.sample.buffer;
+
+import io.github.dsheirer.sample.Listener;
+
+public interface IReusableBufferListener
+{
+	Listener<ReusableBuffer> getReusableBufferListener();
+}

src/main/java/io/github/dsheirer/sample/buffer/IReusableBufferProvider.java

@@ -17,20 +17,15 @@ package io.github.dsheirer.sample.buffer;
 
 import io.github.dsheirer.sample.Listener;
 
-public interface IReusableBufferProvider<T extends ReusableBuffer>
+public interface IReusableBufferProvider
 {
     /**
      * Adds the listener to receive complex buffer samples
      */
-    void addBufferListener(Listener<T> listener);
+    void setBufferListener(Listener<ReusableBuffer> listener);
 
     /**
      * Removes the listener from receiving complex buffer samples
      */
-    void removeBufferListener(Listener<T> listener);
-
-    /**
-     * Indicates if there are any complex buffer listeners registered
-     */
-    boolean hasBufferListeners();
+    void removeBufferListener();
 }

src/main/java/io/github/dsheirer/sample/buffer/IReusableComplexBufferListener.java

@@ -17,7 +17,7 @@ package io.github.dsheirer.sample.buffer;
 
 import io.github.dsheirer.sample.Listener;
 
-public interface IReusableComplexBufferListener<T extends ReusableBuffer>
+public interface IReusableComplexBufferListener<ReusableComplexBuffer>
 {
-	Listener<T> getReusableComplexBufferListener();
+	Listener<ReusableComplexBuffer> getReusableComplexBufferListener();
 }

src/main/java/io/github/dsheirer/sample/buffer/IReusableComplexBufferProvider.java

@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * sdr-trunk
+ * Copyright (C) 2014-2018 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by  the Free Software Foundation, either version 3 of the License, or  (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; without even the implied
+ * warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License  along with this program.
+ * If not, see <http://www.gnu.org/licenses/>
+ *
+ ******************************************************************************/
+package io.github.dsheirer.sample.buffer;
+
+import io.github.dsheirer.sample.Listener;
+
+public interface IReusableComplexBufferProvider
+{
+    /**
+     * Adds the listener to receive complex buffer samples
+     */
+    void addBufferListener(Listener<ReusableComplexBuffer> listener);
+
+    /**
+     * Removes the listener from receiving complex buffer samples
+     */
+    void removeBufferListener(Listener<ReusableComplexBuffer> listener);
+
+    /**
+     * Indicates if there are any complex buffer listeners registered
+     */
+    boolean hasBufferListeners();
+}

src/main/java/io/github/dsheirer/sample/buffer/ReusableBufferBroadcaster.java

@@ -20,7 +20,7 @@ import io.github.dsheirer.sample.Listener;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class ReusableBufferBroadcaster extends Broadcaster<ReusableComplexBuffer>
+public class ReusableBufferBroadcaster<T extends ReusableBuffer> extends Broadcaster<T>
 {
     private final static Logger mLog = LoggerFactory.getLogger(ReusableBufferBroadcaster.class);
 
@@ -34,15 +34,15 @@ public class ReusableBufferBroadcaster extends Broadcaster<ReusableComplexBuffer
      * send the buffer to all consumers.
      */
     @Override
-    public void broadcast(ReusableComplexBuffer reusableComplexBuffer)
+    public void broadcast(T reusableBuffer)
     {
-        for(Listener<ReusableComplexBuffer> listener : mListeners)
+        for(Listener<T> listener : mListeners)
         {
-            reusableComplexBuffer.incrementUserCount();
-            listener.receive(reusableComplexBuffer);
+            reusableBuffer.incrementUserCount();
+            listener.receive(reusableBuffer);
         }
 
         //Decrement user counter for this broadcaster
-        reusableComplexBuffer.decrementUserCount();
+        reusableBuffer.decrementUserCount();
     }
 }

src/main/java/io/github/dsheirer/sample/buffer/ReusableBufferQueue.java

@@ -27,10 +27,6 @@ public class ReusableBufferQueue extends AbstractReusableBufferQueue<ReusableBuf
         super(debugName);
     }
 
-    public ReusableBufferQueue()
-    {
-    }
-
     /**
      * Returns a reusable buffer from an internal recycling queue, or creates a new buffer if there are currently no
      * buffers available for reuse.