diff -r 4e40f3481f23 -r 2f2f5e24ac6a src/org/sipdroid/pjlib/Codec.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/sipdroid/pjlib/Codec.java	Sun Jan 24 04:52:19 2010 +0100
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2009 The Sipdroid Open Source Project
+ * 
+ * This file is part of Sipdroid (http://www.sipdroid.org)
+ * 
+ * Sipdroid 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 source code 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 source code; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+package org.sipdroid.pjlib;
+
+import java.lang.String;
+
+public class Codec {
+    public static native int open(String codec_id);
+    public static native int decode(byte alaw[], short lin[], int frames);
+    public static native int encode(short lin[], int offset, byte alaw[], int frames);
+    public static native int close();
+
+    public static void init() {
+    }
+
+    public static boolean loaded;
+
+    static {
+	try {
+	    System.loadLibrary("pjlib_linker_jni");
+	    open("gsm");
+	    loaded = true;
+	} catch (Throwable e) {
+	    e.printStackTrace();
+	}
+    }
+}