Add live shifter to JNI

com/breakfastquay/rubberband/RubberBandLiveShifter.java

@@ -0,0 +1,70 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rubber Band Library
+    An audio time-stretching and pitch-shifting library.
+    Copyright 2007-2022 Particular Programs Ltd.
+
+    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 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+
+    Alternatively, if you have a valid commercial licence for the
+    Rubber Band Library obtained by agreement with the copyright
+    holders, you may redistribute and/or modify it under the terms
+    described in that licence.
+
+    If you wish to distribute code using the Rubber Band Library
+    under terms other than those of the GNU General Public License,
+    you must obtain a valid commercial licence before doing so.
+*/
+
+package com.breakfastquay.rubberband;
+
+public class RubberBandLiveShifter
+{
+    public RubberBandLiveShifter(int sampleRate, int channels,
+                                 int options) {
+	handle = 0;
+	initialise(sampleRate, channels, options);
+    }
+
+    public native void dispose();
+
+    public native void reset();
+
+    public native void setPitchScale(double scale);
+
+    public native int getChannelCount();
+    public native double getPitchScale();
+
+    public native int getStartDelay();
+
+    public native void setFormantOption(int options);
+
+    public native int getBlockSize();
+    
+    public native void shift(float[][] input, int inOffset, float[][] output, int outOffset);
+    public void shift(float[][] input, float[][] output) {
+        shift(input, 0, output, 0);
+    }
+
+    private native void initialise(int sampleRate, int channels, int options);
+    private long handle;
+
+    public static final int OptionWindowShort          = 0x00000000;
+    public static final int OptionWindowMedium         = 0x00100000;
+
+    public static final int OptionFormantShifted       = 0x00000000;
+    public static final int OptionFormantPreserved     = 0x01000000;
+
+    public static final int OptionChannelsApart        = 0x00000000;
+    public static final int OptionChannelsTogether     = 0x10000000;
+
+    static {
+	System.loadLibrary("rubberband-jni");
+    }
+};
+