├── .gitignore ├── lib └── TarsosDSP-2.3.jar ├── jni ├── JVM │ ├── librubberband-jni.so │ ├── librubberband-jni.dylib │ ├── rubberband-jni_win32.dll │ └── rubberband-jni_win64.dll └── Android │ └── armeabi │ └── librubberband-jni.so ├── src ├── be │ └── tarsos │ │ ├── dsp │ │ └── rubberband │ │ │ ├── RubberBandAudioProcessor.java │ │ │ └── RubberBandFrame.java │ │ └── util │ │ └── FileUtils.java └── com │ └── breakfastquay │ └── rubberband │ └── RubberBandStretcher.java ├── README.textile └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | bin 2 | build/*.jar 3 | build/doc 4 | 5 | .project 6 | .settings 7 | .classpath 8 | -------------------------------------------------------------------------------- /lib/TarsosDSP-2.3.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JorenSix/RubberBandJNI/HEAD/lib/TarsosDSP-2.3.jar -------------------------------------------------------------------------------- /jni/JVM/librubberband-jni.so: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JorenSix/RubberBandJNI/HEAD/jni/JVM/librubberband-jni.so -------------------------------------------------------------------------------- /jni/JVM/librubberband-jni.dylib: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JorenSix/RubberBandJNI/HEAD/jni/JVM/librubberband-jni.dylib -------------------------------------------------------------------------------- /jni/JVM/rubberband-jni_win32.dll: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JorenSix/RubberBandJNI/HEAD/jni/JVM/rubberband-jni_win32.dll -------------------------------------------------------------------------------- /jni/JVM/rubberband-jni_win64.dll: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JorenSix/RubberBandJNI/HEAD/jni/JVM/rubberband-jni_win64.dll -------------------------------------------------------------------------------- /jni/Android/armeabi/librubberband-jni.so: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JorenSix/RubberBandJNI/HEAD/jni/Android/armeabi/librubberband-jni.so -------------------------------------------------------------------------------- /src/be/tarsos/dsp/rubberband/RubberBandAudioProcessor.java: -------------------------------------------------------------------------------- 1 | package be.tarsos.dsp.rubberband; 2 | 3 | import java.io.IOException; 4 | 5 | import com.breakfastquay.rubberband.RubberBandStretcher; 6 | 7 | import be.tarsos.dsp.AudioEvent; 8 | import be.tarsos.dsp.AudioProcessor; 9 | import be.tarsos.util.FileUtils; 10 | 11 | public class RubberBandAudioProcessor implements AudioProcessor { 12 | 13 | static{ 14 | try { 15 | FileUtils.loadLibrary(); 16 | } catch (IOException e) { 17 | // TODO Auto-generated catch block 18 | e.printStackTrace(); 19 | } 20 | } 21 | 22 | private final RubberBandStretcher rbs; 23 | 24 | public RubberBandAudioProcessor(int sampleRate,double initialTimeRatio, double initialPitchScale){ 25 | int options = RubberBandStretcher.OptionProcessRealTime | RubberBandStretcher.OptionWindowShort | RubberBandStretcher.OptionPitchHighQuality; 26 | rbs = new RubberBandStretcher(sampleRate, 1, options, initialTimeRatio, initialPitchScale); 27 | } 28 | 29 | @Override 30 | public boolean process(AudioEvent audioEvent) { 31 | float[][] input = {audioEvent.getFloatBuffer()}; 32 | rbs.process(input, false); 33 | 34 | int availableSamples = rbs.available(); 35 | while(availableSamples ==0){ 36 | try { 37 | Thread.sleep(1); 38 | } catch (InterruptedException e) { 39 | e.printStackTrace(); 40 | } 41 | availableSamples = rbs.available(); 42 | } 43 | float[][] output = {new float[availableSamples]}; 44 | rbs.retrieve(output); 45 | audioEvent.setFloatBuffer(output[0]); 46 | return true; 47 | } 48 | 49 | @Override 50 | public void processingFinished() { 51 | rbs.dispose(); 52 | } 53 | 54 | public void setTimeRatio(double d) { 55 | rbs.setTimeRatio(d); 56 | 57 | } 58 | 59 | public void setPitchScale(double d) { 60 | rbs.setPitchScale(d); 61 | } 62 | } 63 | -------------------------------------------------------------------------------- /src/be/tarsos/dsp/rubberband/RubberBandFrame.java: -------------------------------------------------------------------------------- 1 | package be.tarsos.dsp.rubberband; 2 | 3 | import java.awt.GridLayout; 4 | import java.awt.event.ActionEvent; 5 | import java.awt.event.ActionListener; 6 | 7 | import javax.sound.sampled.LineUnavailableException; 8 | import javax.swing.JButton; 9 | import javax.swing.JFileChooser; 10 | import javax.swing.JFrame; 11 | import javax.swing.JLabel; 12 | import javax.swing.JSlider; 13 | import javax.swing.UIManager; 14 | import javax.swing.event.ChangeEvent; 15 | import javax.swing.event.ChangeListener; 16 | 17 | import be.tarsos.dsp.AudioDispatcher; 18 | import be.tarsos.dsp.io.TarsosDSPAudioFormat; 19 | import be.tarsos.dsp.io.jvm.AudioDispatcherFactory; 20 | import be.tarsos.dsp.io.jvm.AudioPlayer; 21 | import be.tarsos.dsp.io.jvm.JVMAudioInputStream; 22 | 23 | public class RubberBandFrame extends JFrame{ 24 | 25 | /** 26 | * 27 | */ 28 | private static final long serialVersionUID = 1L; 29 | 30 | private final JSlider pitchSlider; 31 | private final JSlider tempoSlider; 32 | private RubberBandAudioProcessor rbs; 33 | private AudioDispatcher adp; 34 | 35 | public RubberBandFrame() throws LineUnavailableException{ 36 | this.setLayout(new GridLayout(0,1)); 37 | this.setTitle("RubberBand time stretcher"); 38 | this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 39 | 40 | JLabel openLabel = new JLabel("Open audio file:"); 41 | JButton openFileButton = new JButton("Open..."); 42 | openFileButton.addActionListener(new ActionListener(){ 43 | 44 | @Override 45 | public void actionPerformed(ActionEvent e) { 46 | 47 | JFileChooser chooser = new JFileChooser(); 48 | int returnVal = chooser.showOpenDialog(RubberBandFrame.this); 49 | if(returnVal == JFileChooser.APPROVE_OPTION) { 50 | try { 51 | openFile(chooser.getSelectedFile().getAbsolutePath()); 52 | } catch (LineUnavailableException e1) { 53 | e1.printStackTrace(); 54 | } 55 | } 56 | }}); 57 | 58 | final JLabel tempoLabel = new JLabel("Duration: 100.00%"); 59 | tempoSlider = new JSlider(200,6800); 60 | tempoSlider.setPaintLabels(false); 61 | tempoSlider.setValue(1000); 62 | tempoSlider.setPaintTicks(true); 63 | tempoSlider.addChangeListener(new ChangeListener() { 64 | 65 | @Override 66 | public void stateChanged(ChangeEvent e) { 67 | tempoLabel.setText(String.format("Duration: %03.2f%%",tempoSlider.getValue()/10.0)); 68 | if(rbs!=null){ 69 | rbs.setTimeRatio(tempoSlider.getValue()/1000.0); 70 | } 71 | } 72 | }); 73 | 74 | final JLabel pitchLabel = new JLabel("Pitch: 100.00 %"); 75 | pitchSlider = new JSlider(200,6800); 76 | pitchSlider.setValue(1000); 77 | pitchSlider.setPaintLabels(false); 78 | pitchSlider.setPaintTicks(true); 79 | 80 | pitchSlider.addChangeListener(new ChangeListener() { 81 | @Override 82 | public void stateChanged(ChangeEvent e) { 83 | pitchLabel.setText(String.format("Pitch: %03.2f%%",pitchSlider.getValue()/10.0)); 84 | if(rbs!=null){ 85 | rbs.setPitchScale(pitchSlider.getValue()/1000.0); 86 | } 87 | } 88 | }); 89 | 90 | this.add(openLabel); 91 | this.add(openFileButton); 92 | this.add(tempoLabel); 93 | this.add(tempoSlider); 94 | this.add(pitchLabel); 95 | this.add(pitchSlider); 96 | } 97 | 98 | private void openFile(String audioFile) throws LineUnavailableException{ 99 | if(adp !=null){ 100 | adp.stop(); 101 | } 102 | adp = AudioDispatcherFactory.fromPipe(audioFile, 44100, 4096, 0); 103 | TarsosDSPAudioFormat format = adp.getFormat(); 104 | rbs = new RubberBandAudioProcessor(44100, tempoSlider.getValue()/1000.0, pitchSlider.getValue()/1000.0); 105 | adp.addAudioProcessor(rbs); 106 | adp.addAudioProcessor(new AudioPlayer(JVMAudioInputStream.toAudioFormat(format))); 107 | new Thread(adp).start(); 108 | } 109 | 110 | public static void main(String[] args){ 111 | UIManager.put("Slider.paintValue", false); 112 | javax.swing.SwingUtilities.invokeLater(new Runnable() { 113 | public void run() { 114 | try { 115 | UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); 116 | } catch (Exception e) { 117 | } 118 | JFrame frame; 119 | try { 120 | frame = new RubberBandFrame(); 121 | frame.setSize(500,250); 122 | frame.setVisible(true); 123 | } catch (LineUnavailableException e) { 124 | // TODO Auto-generated catch block 125 | e.printStackTrace(); 126 | } 127 | 128 | } 129 | }); 130 | } 131 | } 132 | -------------------------------------------------------------------------------- /src/com/breakfastquay/rubberband/RubberBandStretcher.java: -------------------------------------------------------------------------------- 1 | /* Copyright Chris Cannam - All Rights Reserved */ 2 | 3 | package com.breakfastquay.rubberband; 4 | 5 | public class RubberBandStretcher 6 | { 7 | public RubberBandStretcher(int sampleRate, int channels, 8 | int options, 9 | double initialTimeRatio, 10 | double initialPitchScale) { 11 | handle = 0; 12 | initialise(sampleRate, channels, options, 13 | initialTimeRatio, initialPitchScale); 14 | } 15 | 16 | public native void dispose(); 17 | 18 | public native void reset(); 19 | 20 | public native void setTimeRatio(double ratio); 21 | public native void setPitchScale(double scale); 22 | 23 | public native int getChannelCount(); 24 | public native double getTimeRatio(); 25 | public native double getPitchScale(); 26 | 27 | public native int getLatency(); 28 | 29 | public native void setTransientsOption(int options); 30 | public native void setDetectorOption(int options); 31 | public native void setPhaseOption(int options); 32 | public native void setFormantOption(int options); 33 | public native void setPitchOption(int options); 34 | 35 | public native void setExpectedInputDuration(long samples); 36 | public native void setMaxProcessSize(int samples); 37 | 38 | public native int getSamplesRequired(); 39 | 40 | //!!! todo: setKeyFrameMap 41 | 42 | public native void study(float[][] input, int offset, int n, boolean finalBlock); 43 | public void study(float[][] input, boolean finalBlock) { 44 | study(input, 0, input[0].length, finalBlock); 45 | } 46 | 47 | public native void process(float[][] input, int offset, int n, boolean finalBlock); 48 | public void process(float[][] input, boolean finalBlock) { 49 | process(input, 0, input[0].length, finalBlock); 50 | } 51 | 52 | public native int available(); 53 | 54 | public native int retrieve(float[][] output, int offset, int n); 55 | public int retrieve(float[][] output) { 56 | return retrieve(output, 0, output[0].length); 57 | } 58 | 59 | private native void initialise(int sampleRate, int channels, int options, 60 | double initialTimeRatio, 61 | double initialPitchScale); 62 | private long handle; 63 | 64 | public static final int OptionProcessOffline = 0x00000000; 65 | public static final int OptionProcessRealTime = 0x00000001; 66 | 67 | public static final int OptionStretchElastic = 0x00000000; 68 | public static final int OptionStretchPrecise = 0x00000010; 69 | 70 | public static final int OptionTransientsCrisp = 0x00000000; 71 | public static final int OptionTransientsMixed = 0x00000100; 72 | public static final int OptionTransientsSmooth = 0x00000200; 73 | 74 | public static final int OptionDetectorCompound = 0x00000000; 75 | public static final int OptionDetectorPercussive = 0x00000400; 76 | public static final int OptionDetectorSoft = 0x00000800; 77 | 78 | public static final int OptionPhaseLaminar = 0x00000000; 79 | public static final int OptionPhaseIndependent = 0x00002000; 80 | 81 | public static final int OptionThreadingAuto = 0x00000000; 82 | public static final int OptionThreadingNever = 0x00010000; 83 | public static final int OptionThreadingAlways = 0x00020000; 84 | 85 | public static final int OptionWindowStandard = 0x00000000; 86 | public static final int OptionWindowShort = 0x00100000; 87 | public static final int OptionWindowLong = 0x00200000; 88 | 89 | public static final int OptionSmoothingOff = 0x00000000; 90 | public static final int OptionSmoothingOn = 0x00800000; 91 | 92 | public static final int OptionFormantShifted = 0x00000000; 93 | public static final int OptionFormantPreserved = 0x01000000; 94 | 95 | public static final int OptionPitchHighSpeed = 0x00000000; 96 | public static final int OptionPitchHighQuality = 0x02000000; 97 | public static final int OptionPitchHighConsistency = 0x04000000; 98 | 99 | public static final int OptionChannelsApart = 0x00000000; 100 | public static final int OptionChannelsTogether = 0x10000000; 101 | 102 | public static final int DefaultOptions = 0x00000000; 103 | public static final int PercussiveOptions = 0x00102000; 104 | 105 | static { 106 | //System.loadLibrary("rubberband"); 107 | } 108 | }; 109 | 110 | -------------------------------------------------------------------------------- /src/be/tarsos/util/FileUtils.java: -------------------------------------------------------------------------------- 1 | package be.tarsos.util; 2 | 3 | import java.io.File; 4 | import java.io.FileInputStream; 5 | import java.io.FileNotFoundException; 6 | import java.io.FileOutputStream; 7 | import java.io.IOException; 8 | import java.io.InputStream; 9 | import java.io.OutputStream; 10 | 11 | public class FileUtils { 12 | 13 | private FileUtils(){ 14 | 15 | } 16 | 17 | private static String getLibraryName(){ 18 | 19 | String os = System.getProperty("os.name").toLowerCase(); 20 | String arch = System.getProperty("os.arch"); 21 | // binary is for x86 or amd64 or x86_64 architectures ( 22 | // see http://lopica.sourceforge.net/os.html 23 | if(os.contains("linux") && (arch.contains("86") || arch.contains("64"))){ 24 | return "JVM/librubberband-jni.so"; 25 | } else if(os.contains("mac")){ 26 | return "JVM/librubberband-jni.dylib"; 27 | } else if(os.contains("windows") && arch.contains("86")){ 28 | return "JVM/rubberband-jni_win32.dll"; 29 | } else if(os.contains("windows") && arch.contains("64")){ 30 | return "JVM/rubberband-jni_win64.dll"; 31 | }else{ 32 | throw new Error("Unknown architecture! No rubberband JNI library available for your platform!"); 33 | } 34 | } 35 | 36 | 37 | /** 38 | * Loads library from current JAR archive 39 | * 40 | * The file from JAR is copied into system temporary directory and then loaded. The temporary file is deleted after exiting. 41 | * Method uses String as filename because the pathname is "abstract", not system-dependent. 42 | * 43 | * @param filename The filename inside JAR as absolute path (beginning with '/'), e.g. /package/File.ext 44 | * @throws IOException If temporary file creation or read/write operation fails 45 | * @throws IllegalArgumentException If source file (param path) does not exist 46 | * @throws IllegalArgumentException If the path is not absolute or if the filename is shorter than three characters (restriction of {@see File#createTempFile(java.lang.String, java.lang.String)}). 47 | */ 48 | public static void loadLibrary() throws IOException { 49 | 50 | String path = getLibraryName(); 51 | 52 | if(new File("jni/" + path).exists()){ 53 | //running from source 54 | path = "jni/" + path; 55 | }else{ 56 | //running from jar 57 | path = "/" + path; 58 | } 59 | 60 | // Obtain filename from path 61 | String[] parts = path.split("/"); 62 | String filename = (parts.length > 1) ? parts[parts.length - 1] : null; 63 | 64 | // Split filename to prexif and suffix (extension) 65 | String prefix = ""; 66 | String suffix = null; 67 | if (filename != null) { 68 | parts = filename.split("\\.", 2); 69 | prefix = parts[0]; 70 | suffix = (parts.length > 1) ? "."+parts[parts.length - 1] : null; // Thanks, davs! :-) 71 | } 72 | 73 | // Check if the filename is okay 74 | if (filename == null || prefix.length() < 3) { 75 | throw new IllegalArgumentException("The filename has to be at least 3 characters long."); 76 | } 77 | 78 | // Prepare temporary file 79 | File temp = File.createTempFile(prefix, suffix); 80 | temp.deleteOnExit(); 81 | 82 | if (!temp.exists()) { 83 | throw new FileNotFoundException("File " + temp.getAbsolutePath() + " does not exist."); 84 | } 85 | 86 | // Prepare buffer for data copying 87 | byte[] buffer = new byte[1024]; 88 | int readBytes; 89 | 90 | // Open and check input stream 91 | InputStream is; 92 | 93 | if(new File(path).exists()){ 94 | //running from source 95 | is = new FileInputStream(new File(path)); 96 | }else{ 97 | //running from jar 98 | is = FileUtils.class.getResourceAsStream(path); 99 | } 100 | 101 | if (is == null) { 102 | throw new FileNotFoundException("File " + path + " was not found inside JAR."); 103 | } 104 | 105 | // Open output stream and copy data between source file in JAR and the temporary file 106 | OutputStream os = new FileOutputStream(temp); 107 | try { 108 | while ((readBytes = is.read(buffer)) != -1) { 109 | os.write(buffer, 0, readBytes); 110 | } 111 | } finally { 112 | // If read/write fails, close streams safely before throwing an exception 113 | os.close(); 114 | is.close(); 115 | } 116 | 117 | // Finally, load the library 118 | System.load(temp.getAbsolutePath()); 119 | } 120 | } 121 | -------------------------------------------------------------------------------- /README.textile: -------------------------------------------------------------------------------- 1 | 2 | h1. Rubber Band JNI - Controlling Real-Time Audio Time-Stretching from Java 3 | 4 | This repository contains an example of real-time pitch-shifting and audio time-stretching in Java. It uses two components. The first component is "a high quality software C++ library for audio time-stretching and pitch-shifting C++ called Rubber Band":http://breakfastquay.com/rubberband/. The second component is a Java audio library called "TarsosDSP":https://github.com/JorenSix/TarsosDSP. To bridge the gap between the two JNI(Java Native Interface) is used. Rubber Band provides a JNI interface and starting from the currently unreleased version 1.8.2, makefiles are provided that make compiling and subsequently using the JNI version of Rubber Band relatively straightforward. 5 | 6 | h2. Running the example 7 | 8 | For recent 64 bits Linux machines and Mac OS X this library provides compiled JNI libraries. To run the example you need to build it, with "Apache Ant" and set the correct @java.library.path@ when running the executable jar. This could be done as follows: 9 | 10 |
git clone https://github.com/JorenSix/RubberBandJNI.git
 11 | cd RubberbandJNI/build
 12 | ant
 13 | cd ..
 14 | java -Djava.library.path=lib/ -jar build/RubberBandJNI.jar
. 15 | 16 | If this does not work, you perhaps need to compile a JNI library yourself. Below documentation is available to get it working on a Linux machine and Mac OS X. 17 | 18 | 19 | h2. Compiling the Rubber Band JNI library on Debian Linux 20 | 21 | To get the example working several elements need to be in place. 1) To compile Rubber Band a C++ tool-chain needs to be available on your system. This includes a compiler and related tools like @make@. 2) The dependencies for Rubber Band should be installed, otherwise compilation is impossible. 3) A JDK should be installed to compile java files and to provide the JNI header files. Here we assume that a JDK and C++ tool-chain is already available. The rest is explained for Debian 8.1 but should be transferable to any Unix like system. 22 | 23 | To install the dependencies on Debian, install following packages: 24 | 25 | @sudo apt-get install vamp-plugin-sdk libsndfile1-dev libfftw3-dev libvamp-sdk2 libvamp-hostsdk3 libsamplerate0-dev@ 26 | 27 | Once the dependencies are installed correctly the following should work: 28 | 29 |
# Download and unzip and the latest source code
 30 | wget https://bitbucket.org/breakfastquay/rubberband/get/46805fcedf7e.zip
 31 | unzip 46805fcedf7e.zip 
 32 | # Change the working directory
 33 | cd breakfastquay-rubberband-46805fcedf7e
 34 | # If the dependencies are installed correctly the following will work
 35 | ./configure
 36 | # Compile the source code
 37 | make
 38 | # Create the JNI library, set JAVA_HOME to your JDK directory
 39 | make jni JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64/
 40 | # Copy the newly created JAR-file and native library to the lib directory
 41 | cp lib/rubberband.jar ../lib/
 42 | cp lib/librubberband-jni.so ../lib/
 43 | # change the working directory
 44 | cd ../build
 45 | # Build the RubberBandJNI jar file with Apache Ant
 46 | ant
 47 | cd ..
48 | 49 | If everything went well there are a few new files on your system. @lib/rubberband.jar@ contains the Java part of the JNI-bridge. @lib/librubberband-jni.so@ contains Rubber Band C++ JNI bridge compiled for your system. @build/RubberBandJNI.jar@ contains the example application of this repository. If those files are created correctly, you are ready to run RubberBandJNI. The application needs to be started with a correct @java.library.path@: 50 | 51 | @java -Djava.library.path=lib/ -jar build/RubberBandJNI.jar@ 52 | 53 | Watch out: the order of the options does matter: the @-D@ option should appear before @-jar@. Finally, to clean up remove the previously downloaded source code. 54 | 55 |
rm 46805fcedf7e.zip 
 56 | rm -r breakfastquay-rubberband-46805fcedf7e
 57 | #rm lib/rubberband.jar
 58 | #rm lib/librubberband-jni.so
59 | 60 | h2. Compiling the Rubber Band JNI library on Mac OS X 61 | 62 | To install the dependencies on Mac OS X the "homebrew":http://brew.sh/ package manager is very helpful: 63 | 64 |
brew install http://tuohela.net/irc/vamp-plugin-sdk.rb
 65 | brew install fftw
 66 | brew install libsamplerate
 67 | brew install libsndfile
 68 | brew install wget
69 | 70 | To get the makefile working on Mac OS X some changes need to be done. The first change is to correctly name the library with a .dylib instead of an .so: 71 | 72 |
DYNAMIC_EXTENSION       := .dylib
 73 | ...
 74 | DYNAMIC_LDFLAGS         := -shared
 75 | VAMP_LDFLAGS            := -shared
 76 | LADSPA_LDFLAGS          := -shared
77 | 78 | 79 | Finally compile the library by calling @make@. It can complain about missing Then call: 80 | 81 |
make
 82 | make jni JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home
83 | 84 | If you get complaints about a missing @jni_md.h@ "link the header files, as described here.":https://stackoverflow.com/questions/24996017/jdk-1-8-on-linux-missing-include-file 85 | 86 | 87 | h2. Compiling the Rubber Band JNI library on Debian for Android 88 | 89 | 90 | Install the Android Native Development kit, the NDK, and make sure that ndk-build 91 | is available on your path. 92 | 93 |
# Download and unzip and the latest source code
 94 | wget https://bitbucket.org/breakfastquay/rubberband/get/46805fcedf7e.zip
 95 | unzip 46805fcedf7e.zip 
 96 | # Change the working directory
 97 | cd breakfastquay-rubberband-46805fcedf7e
 98 | #
 99 | mkdir jni
100 | mkdir libs
101 | 
102 | # Configure the application to use stl
103 | echo "APP_STL := gnustl_static" > jni/Application.mk
104 | # Copy the build file to the expected location. 
105 | cp Android.mk jni
106 | 107 | Then change @jni/Android.mk@ so that the correct directories are used. For me, the beginning of the file looks like this: 108 | 109 |
LOCAL_MODULE := rubberband
110 | LOCAL_MODULE_FILENAME := librubberband-jni
111 | LOCAL_PATH := /home/joren/breakfastquay-rubberband-46805fcedf7e
112 | LOCAL_C_INCLUDES := $(LOCAL_PATH)/rubberband $(LOCAL_PATH)/rubberband/src
113 | RUBBERBAND_PATH := /home/joren/breakfastquay-rubberband-46805fcedf7e
114 | RUBBERBAND_SRC_PATH := $(RUBBERBAND_PATH)/src
115 | 116 | Now you are ready to call @ndk-build@ in the top directory and it should build a library in @libs/armeabi/librubberband-jni.so@: 117 | 118 |
[armeabi-v7a] Compile++ arm  : rubberband <= SilentAudioCurve.cpp
119 | [armeabi-v7a] Compile++ arm  : rubberband <= CompoundAudioCurve.cpp
120 | [armeabi-v7a] Compile++ arm  : rubberband <= HighFrequencyAudioCurve.cpp
121 | [armeabi-v7a] Compile++ arm  : rubberband <= SpectralDifferenceAudioCurve.cpp
122 | [armeabi-v7a] Compile++ arm  : rubberband <= ConstantAudioCurve.cpp
123 | [armeabi-v7a] Compile++ arm  : rubberband <= PercussiveAudioCurve.cpp
124 | [armeabi-v7a] Compile++ arm  : rubberband <= StretcherImpl.cpp
125 | [armeabi-v7a] Compile++ arm  : rubberband <= StretcherProcess.cpp
126 | [armeabi-v7a] Compile++ arm  : rubberband <= StretchCalculator.cpp
127 | [armeabi-v7a] Compile++ arm  : rubberband <= RubberBandStretcher.cpp
128 | [armeabi-v7a] Compile arm    : rubberband <= resample.c
129 | [armeabi-v7a] Compile arm    : rubberband <= kiss_fft.c
130 | [armeabi-v7a] Compile arm    : rubberband <= kiss_fftr.c
131 | [armeabi-v7a] SharedLibrary  : librubberband-jni.so
132 | [armeabi-v7a] Install        : librubberband-jni.so => libs/armeabi/librubberband-jni.so
133 | 134 | In Android Studio this library can be put in the following folder. It can then be called from Java automatically. 135 | 136 |
|--app: 
137 | |--|--src: 
138 | |--|--|--main 
139 | |--|--|--|--jniLibs 
140 | |--|--|--|--|--armeabi 
141 | |--|--|--|--|--|--.so Files
142 | |--|--|--|--|--armeabi-v7a 
143 | |--|--|--|--|--|--.so Files
144 | 145 | 146 | h2. Compiling the Rubber Band JNI library on Windows for Window x86 and x64 147 | 148 | Download the free "Visual Studio Community 2015":https://www.visualstudio.com/en-us/products/visual-studio-community-vs.aspx and install it. Make sure that the C/C++ components are installed. Subsequently download the latest "RubberBand source code":https://bitbucket.org/breakfastquay/rubberband/get/46805fcedf7e.zip and place the file that is found in @build/@ of this repository in the top directory of the downloaded Rubberband source tree. Doubleclick it to start Visual Studio Community. 149 | 150 | To make it build successfully make sure that you also have a recent Java JDK on installed your machine. When building the project the following directories need to be set as additional include directories: 151 | 152 |
C:\Program Files (x86)\Java\jdk1.8.0_60\include;
153 | C:\Program Files (x86)\Java\jdk1.8.0_60\include\win32
154 | 155 | If all goes wel a build should create a dll named @rubberband-library.dll@ to work correctly with this project it should be renamed @rubberband-jni.dll@. 156 | 157 | 158 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. By contrast, the GNU General Public 13 | License is intended to guarantee your freedom to share and change free 14 | software--to make sure the software is free for all its users. This 15 | General Public License applies to most of the Free Software 16 | Foundation's software and to any other program whose authors commit to 17 | using it. (Some other Free Software Foundation software is covered by 18 | the GNU Lesser General Public License instead.) You can apply it to 19 | your programs, too. 20 | 21 | When we speak of free software, we are referring to freedom, not 22 | price. Our General Public Licenses are designed to make sure that you 23 | have the freedom to distribute copies of free software (and charge for 24 | this service if you wish), that you receive source code or can get it 25 | if you want it, that you can change the software or use pieces of it 26 | in new free programs; and that you know you can do these things. 27 | 28 | To protect your rights, we need to make restrictions that forbid 29 | anyone to deny you these rights or to ask you to surrender the rights. 30 | These restrictions translate to certain responsibilities for you if you 31 | distribute copies of the software, or if you modify it. 32 | 33 | For example, if you distribute copies of such a program, whether 34 | gratis or for a fee, you must give the recipients all the rights that 35 | you have. You must make sure that they, too, receive or can get the 36 | source code. And you must show them these terms so they know their 37 | rights. 38 | 39 | We protect your rights with two steps: (1) copyright the software, and 40 | (2) offer you this license which gives you legal permission to copy, 41 | distribute and/or modify the software. 42 | 43 | Also, for each author's protection and ours, we want to make certain 44 | that everyone understands that there is no warranty for this free 45 | software. If the software is modified by someone else and passed on, we 46 | want its recipients to know that what they have is not the original, so 47 | that any problems introduced by others will not reflect on the original 48 | authors' reputations. 49 | 50 | Finally, any free program is threatened constantly by software 51 | patents. We wish to avoid the danger that redistributors of a free 52 | program will individually obtain patent licenses, in effect making the 53 | program proprietary. To prevent this, we have made it clear that any 54 | patent must be licensed for everyone's free use or not licensed at all. 55 | 56 | The precise terms and conditions for copying, distribution and 57 | modification follow. 58 | 59 | GNU GENERAL PUBLIC LICENSE 60 | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 61 | 62 | 0. This License applies to any program or other work which contains 63 | a notice placed by the copyright holder saying it may be distributed 64 | under the terms of this General Public License. The "Program", below, 65 | refers to any such program or work, and a "work based on the Program" 66 | means either the Program or any derivative work under copyright law: 67 | that is to say, a work containing the Program or a portion of it, 68 | either verbatim or with modifications and/or translated into another 69 | language. (Hereinafter, translation is included without limitation in 70 | the term "modification".) Each licensee is addressed as "you". 71 | 72 | Activities other than copying, distribution and modification are not 73 | covered by this License; they are outside its scope. The act of 74 | running the Program is not restricted, and the output from the Program 75 | is covered only if its contents constitute a work based on the 76 | Program (independent of having been made by running the Program). 77 | Whether that is true depends on what the Program does. 78 | 79 | 1. You may copy and distribute verbatim copies of the Program's 80 | source code as you receive it, in any medium, provided that you 81 | conspicuously and appropriately publish on each copy an appropriate 82 | copyright notice and disclaimer of warranty; keep intact all the 83 | notices that refer to this License and to the absence of any warranty; 84 | and give any other recipients of the Program a copy of this License 85 | along with the Program. 86 | 87 | You may charge a fee for the physical act of transferring a copy, and 88 | you may at your option offer warranty protection in exchange for a fee. 89 | 90 | 2. You may modify your copy or copies of the Program or any portion 91 | of it, thus forming a work based on the Program, and copy and 92 | distribute such modifications or work under the terms of Section 1 93 | above, provided that you also meet all of these conditions: 94 | 95 | a) You must cause the modified files to carry prominent notices 96 | stating that you changed the files and the date of any change. 97 | 98 | b) You must cause any work that you distribute or publish, that in 99 | whole or in part contains or is derived from the Program or any 100 | part thereof, to be licensed as a whole at no charge to all third 101 | parties under the terms of this License. 102 | 103 | c) If the modified program normally reads commands interactively 104 | when run, you must cause it, when started running for such 105 | interactive use in the most ordinary way, to print or display an 106 | announcement including an appropriate copyright notice and a 107 | notice that there is no warranty (or else, saying that you provide 108 | a warranty) and that users may redistribute the program under 109 | these conditions, and telling the user how to view a copy of this 110 | License. (Exception: if the Program itself is interactive but 111 | does not normally print such an announcement, your work based on 112 | the Program is not required to print an announcement.) 113 | 114 | These requirements apply to the modified work as a whole. If 115 | identifiable sections of that work are not derived from the Program, 116 | and can be reasonably considered independent and separate works in 117 | themselves, then this License, and its terms, do not apply to those 118 | sections when you distribute them as separate works. But when you 119 | distribute the same sections as part of a whole which is a work based 120 | on the Program, the distribution of the whole must be on the terms of 121 | this License, whose permissions for other licensees extend to the 122 | entire whole, and thus to each and every part regardless of who wrote it. 123 | 124 | Thus, it is not the intent of this section to claim rights or contest 125 | your rights to work written entirely by you; rather, the intent is to 126 | exercise the right to control the distribution of derivative or 127 | collective works based on the Program. 128 | 129 | In addition, mere aggregation of another work not based on the Program 130 | with the Program (or with a work based on the Program) on a volume of 131 | a storage or distribution medium does not bring the other work under 132 | the scope of this License. 133 | 134 | 3. You may copy and distribute the Program (or a work based on it, 135 | under Section 2) in object code or executable form under the terms of 136 | Sections 1 and 2 above provided that you also do one of the following: 137 | 138 | a) Accompany it with the complete corresponding machine-readable 139 | source code, which must be distributed under the terms of Sections 140 | 1 and 2 above on a medium customarily used for software interchange; or, 141 | 142 | b) Accompany it with a written offer, valid for at least three 143 | years, to give any third party, for a charge no more than your 144 | cost of physically performing source distribution, a complete 145 | machine-readable copy of the corresponding source code, to be 146 | distributed under the terms of Sections 1 and 2 above on a medium 147 | customarily used for software interchange; or, 148 | 149 | c) Accompany it with the information you received as to the offer 150 | to distribute corresponding source code. (This alternative is 151 | allowed only for noncommercial distribution and only if you 152 | received the program in object code or executable form with such 153 | an offer, in accord with Subsection b above.) 154 | 155 | The source code for a work means the preferred form of the work for 156 | making modifications to it. For an executable work, complete source 157 | code means all the source code for all modules it contains, plus any 158 | associated interface definition files, plus the scripts used to 159 | control compilation and installation of the executable. However, as a 160 | special exception, the source code distributed need not include 161 | anything that is normally distributed (in either source or binary 162 | form) with the major components (compiler, kernel, and so on) of the 163 | operating system on which the executable runs, unless that component 164 | itself accompanies the executable. 165 | 166 | If distribution of executable or object code is made by offering 167 | access to copy from a designated place, then offering equivalent 168 | access to copy the source code from the same place counts as 169 | distribution of the source code, even though third parties are not 170 | compelled to copy the source along with the object code. 171 | 172 | 4. You may not copy, modify, sublicense, or distribute the Program 173 | except as expressly provided under this License. Any attempt 174 | otherwise to copy, modify, sublicense or distribute the Program is 175 | void, and will automatically terminate your rights under this License. 176 | However, parties who have received copies, or rights, from you under 177 | this License will not have their licenses terminated so long as such 178 | parties remain in full compliance. 179 | 180 | 5. You are not required to accept this License, since you have not 181 | signed it. However, nothing else grants you permission to modify or 182 | distribute the Program or its derivative works. These actions are 183 | prohibited by law if you do not accept this License. Therefore, by 184 | modifying or distributing the Program (or any work based on the 185 | Program), you indicate your acceptance of this License to do so, and 186 | all its terms and conditions for copying, distributing or modifying 187 | the Program or works based on it. 188 | 189 | 6. Each time you redistribute the Program (or any work based on the 190 | Program), the recipient automatically receives a license from the 191 | original licensor to copy, distribute or modify the Program subject to 192 | these terms and conditions. You may not impose any further 193 | restrictions on the recipients' exercise of the rights granted herein. 194 | You are not responsible for enforcing compliance by third parties to 195 | this License. 196 | 197 | 7. If, as a consequence of a court judgment or allegation of patent 198 | infringement or for any other reason (not limited to patent issues), 199 | conditions are imposed on you (whether by court order, agreement or 200 | otherwise) that contradict the conditions of this License, they do not 201 | excuse you from the conditions of this License. If you cannot 202 | distribute so as to satisfy simultaneously your obligations under this 203 | License and any other pertinent obligations, then as a consequence you 204 | may not distribute the Program at all. For example, if a patent 205 | license would not permit royalty-free redistribution of the Program by 206 | all those who receive copies directly or indirectly through you, then 207 | the only way you could satisfy both it and this License would be to 208 | refrain entirely from distribution of the Program. 209 | 210 | If any portion of this section is held invalid or unenforceable under 211 | any particular circumstance, the balance of the section is intended to 212 | apply and the section as a whole is intended to apply in other 213 | circumstances. 214 | 215 | It is not the purpose of this section to induce you to infringe any 216 | patents or other property right claims or to contest validity of any 217 | such claims; this section has the sole purpose of protecting the 218 | integrity of the free software distribution system, which is 219 | implemented by public license practices. Many people have made 220 | generous contributions to the wide range of software distributed 221 | through that system in reliance on consistent application of that 222 | system; it is up to the author/donor to decide if he or she is willing 223 | to distribute software through any other system and a licensee cannot 224 | impose that choice. 225 | 226 | This section is intended to make thoroughly clear what is believed to 227 | be a consequence of the rest of this License. 228 | 229 | 8. If the distribution and/or use of the Program is restricted in 230 | certain countries either by patents or by copyrighted interfaces, the 231 | original copyright holder who places the Program under this License 232 | may add an explicit geographical distribution limitation excluding 233 | those countries, so that distribution is permitted only in or among 234 | countries not thus excluded. In such case, this License incorporates 235 | the limitation as if written in the body of this License. 236 | 237 | 9. The Free Software Foundation may publish revised and/or new versions 238 | of the General Public License from time to time. Such new versions will 239 | be similar in spirit to the present version, but may differ in detail to 240 | address new problems or concerns. 241 | 242 | Each version is given a distinguishing version number. If the Program 243 | specifies a version number of this License which applies to it and "any 244 | later version", you have the option of following the terms and conditions 245 | either of that version or of any later version published by the Free 246 | Software Foundation. If the Program does not specify a version number of 247 | this License, you may choose any version ever published by the Free Software 248 | Foundation. 249 | 250 | 10. If you wish to incorporate parts of the Program into other free 251 | programs whose distribution conditions are different, write to the author 252 | to ask for permission. For software which is copyrighted by the Free 253 | Software Foundation, write to the Free Software Foundation; we sometimes 254 | make exceptions for this. Our decision will be guided by the two goals 255 | of preserving the free status of all derivatives of our free software and 256 | of promoting the sharing and reuse of software generally. 257 | 258 | NO WARRANTY 259 | 260 | 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 261 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 262 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 263 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 264 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 265 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 266 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 267 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 268 | REPAIR OR CORRECTION. 269 | 270 | 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 271 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 272 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 273 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 274 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 275 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 276 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 277 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 278 | POSSIBILITY OF SUCH DAMAGES. 279 | 280 | END OF TERMS AND CONDITIONS 281 | 282 | How to Apply These Terms to Your New Programs 283 | 284 | If you develop a new program, and you want it to be of the greatest 285 | possible use to the public, the best way to achieve this is to make it 286 | free software which everyone can redistribute and change under these terms. 287 | 288 | To do so, attach the following notices to the program. It is safest 289 | to attach them to the start of each source file to most effectively 290 | convey the exclusion of warranty; and each file should have at least 291 | the "copyright" line and a pointer to where the full notice is found. 292 | 293 | {description} 294 | Copyright (C) {year} {fullname} 295 | 296 | This program is free software; you can redistribute it and/or modify 297 | it under the terms of the GNU General Public License as published by 298 | the Free Software Foundation; either version 2 of the License, or 299 | (at your option) any later version. 300 | 301 | This program is distributed in the hope that it will be useful, 302 | but WITHOUT ANY WARRANTY; without even the implied warranty of 303 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304 | GNU General Public License for more details. 305 | 306 | You should have received a copy of the GNU General Public License along 307 | with this program; if not, write to the Free Software Foundation, Inc., 308 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 309 | 310 | Also add information on how to contact you by electronic and paper mail. 311 | 312 | If the program is interactive, make it output a short notice like this 313 | when it starts in an interactive mode: 314 | 315 | Gnomovision version 69, Copyright (C) year name of author 316 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 317 | This is free software, and you are welcome to redistribute it 318 | under certain conditions; type `show c' for details. 319 | 320 | The hypothetical commands `show w' and `show c' should show the appropriate 321 | parts of the General Public License. Of course, the commands you use may 322 | be called something other than `show w' and `show c'; they could even be 323 | mouse-clicks or menu items--whatever suits your program. 324 | 325 | You should also get your employer (if you work as a programmer) or your 326 | school, if any, to sign a "copyright disclaimer" for the program, if 327 | necessary. Here is a sample; alter the names: 328 | 329 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330 | `Gnomovision' (which makes passes at compilers) written by James Hacker. 331 | 332 | {signature of Ty Coon}, 1 April 1989 333 | Ty Coon, President of Vice 334 | 335 | This General Public License does not permit incorporating your program into 336 | proprietary programs. If your program is a subroutine library, you may 337 | consider it more useful to permit linking proprietary applications with the 338 | library. If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | 341 | --------------------------------------------------------------------------------