kopia lustrzana https://github.com/jameshball/osci-render
Implement highly experimental frequency detection
rodzic
943f275214
commit
ce6616f398
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@ -14,6 +14,7 @@ import xt.audio.Structs.XtMix;
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import xt.audio.Structs.XtStreamParams;
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import xt.audio.Structs.XtStreamParams;
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import java.io.*;
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import java.io.*;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Map;
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import java.util.concurrent.ArrayBlockingQueue;
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import java.util.concurrent.ArrayBlockingQueue;
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@ -25,6 +26,8 @@ import sh.ball.shapes.Vector2;
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import javax.sound.sampled.AudioFormat;
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import javax.sound.sampled.AudioFormat;
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import javax.sound.sampled.AudioInputStream;
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import javax.sound.sampled.AudioInputStream;
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import java.util.List;
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import java.util.List;
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import java.util.concurrent.Semaphore;
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import java.util.concurrent.locks.ReentrantLock;
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public class AudioPlayer implements Renderer<List<Shape>, AudioInputStream> {
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public class AudioPlayer implements Renderer<List<Shape>, AudioInputStream> {
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@ -37,6 +40,8 @@ public class AudioPlayer implements Renderer<List<Shape>, AudioInputStream> {
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private final XtFormat format;
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private final XtFormat format;
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private final BlockingQueue<List<Shape>> frameQueue = new ArrayBlockingQueue<>(BUFFER_SIZE);
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private final BlockingQueue<List<Shape>> frameQueue = new ArrayBlockingQueue<>(BUFFER_SIZE);
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private final Map<Object, Effect> effects = new HashMap<>();
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private final Map<Object, Effect> effects = new HashMap<>();
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private final ReentrantLock lock = new ReentrantLock();
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private final List<Listener> listeners = new ArrayList<>();
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private ByteArrayOutputStream outputStream;
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private ByteArrayOutputStream outputStream;
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private boolean recording = false;
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private boolean recording = false;
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@ -58,6 +63,7 @@ public class AudioPlayer implements Renderer<List<Shape>, AudioInputStream> {
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private int render(XtStream stream, XtBuffer buffer, Object user) throws InterruptedException {
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private int render(XtStream stream, XtBuffer buffer, Object user) throws InterruptedException {
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XtSafeBuffer safe = XtSafeBuffer.get(stream);
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XtSafeBuffer safe = XtSafeBuffer.get(stream);
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safe.lock(buffer);
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safe.lock(buffer);
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lock.lock();
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float[] output = (float[]) safe.getOutput();
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float[] output = (float[]) safe.getOutput();
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for (int f = 0; f < buffer.frames; f++) {
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for (int f = 0; f < buffer.frames; f++) {
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@ -73,9 +79,7 @@ public class AudioPlayer implements Renderer<List<Shape>, AudioInputStream> {
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output[f * format.channels.outputs] = leftChannel;
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output[f * format.channels.outputs] = leftChannel;
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output[f * format.channels.outputs + 1] = rightChannel;
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output[f * format.channels.outputs + 1] = rightChannel;
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if (recording) {
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writeChannels(leftChannel, rightChannel);
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writeVector(leftChannel, rightChannel);
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}
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audioFramesDrawn++;
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audioFramesDrawn++;
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@ -90,17 +94,33 @@ public class AudioPlayer implements Renderer<List<Shape>, AudioInputStream> {
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}
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}
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}
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}
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safe.unlock(buffer);
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safe.unlock(buffer);
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lock.unlock();
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return 0;
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return 0;
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}
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}
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private void writeVector(float leftChannel, float rightChannel) {
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private void writeChannels(float leftChannel, float rightChannel) {
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int left = (int)(leftChannel * Short.MAX_VALUE);
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int left = (int)(leftChannel * Short.MAX_VALUE);
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int right = (int)(rightChannel * Short.MAX_VALUE);
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int right = (int)(rightChannel * Short.MAX_VALUE);
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outputStream.write((byte) left);
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byte b0 = (byte) left;
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outputStream.write((byte)(left >> 8));
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byte b1 = (byte)(left >> 8);
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outputStream.write((byte) right);
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byte b2 = (byte) right;
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outputStream.write((byte)(right >> 8));
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byte b3 = (byte)(right >> 8);
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if (recording) {
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outputStream.write(b0);
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outputStream.write(b1);
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outputStream.write(b2);
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outputStream.write(b3);
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}
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for (Listener listener : listeners) {
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listener.write(b0);
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listener.write(b1);
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listener.write(b2);
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listener.write(b3);
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listener.notifyIfFull();
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}
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framesRecorded++;
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framesRecorded++;
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}
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}
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@ -194,6 +214,24 @@ public class AudioPlayer implements Renderer<List<Shape>, AudioInputStream> {
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effects.remove(identifier);
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effects.remove(identifier);
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}
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}
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@Override
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public void read(byte[] buffer) throws InterruptedException {
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Listener listener = new Listener(buffer);
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try {
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lock.lock();
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listeners.add(listener);
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} finally {
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lock.unlock();
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}
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listener.waitUntilFull();
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try {
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lock.lock();
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listeners.remove(listener);
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} finally {
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lock.unlock();
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}
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}
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@Override
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@Override
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public void startRecord() {
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public void startRecord() {
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outputStream = new ByteArrayOutputStream();
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outputStream = new ByteArrayOutputStream();
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@ -211,4 +249,32 @@ public class AudioPlayer implements Renderer<List<Shape>, AudioInputStream> {
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return new AudioInputStream(new ByteArrayInputStream(input), audioFormat, framesRecorded);
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return new AudioInputStream(new ByteArrayInputStream(input), audioFormat, framesRecorded);
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}
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}
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private static class Listener {
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private final byte[] buffer;
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private final Semaphore sema;
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private int offset;
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private Listener(byte[] buffer) {
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this.buffer = buffer;
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this.sema = new Semaphore(0);
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}
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private void waitUntilFull() throws InterruptedException {
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sema.acquire();
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}
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private void notifyIfFull() {
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if (offset >= buffer.length) {
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sema.release();
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}
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}
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private void write(byte b) {
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if (offset < buffer.length) {
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buffer[offset++] = b;
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}
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}
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}
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}
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}
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@ -0,0 +1,105 @@
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package sh.ball.audio;
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import sh.ball.audio.fft.FFTFactory;
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import sh.ball.audio.fft.Transform;
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import java.util.ArrayList;
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import java.util.List;
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public class FrequencyAnalyser<S, T> implements Runnable {
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private static final float NORMALIZATION_FACTOR_2_BYTES = Short.MAX_VALUE + 1.0f;
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private final Renderer<S, T> renderer;
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private final List<FrequencyListener> listeners = new ArrayList<>();
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private final int frameSize;
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private final int sampleRate;
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public FrequencyAnalyser(Renderer<S, T> renderer, int frameSize, int sampleRate) {
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this.renderer = renderer;
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this.frameSize = frameSize;
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this.sampleRate = sampleRate;
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}
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public void addListener(FrequencyListener listener) {
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listeners.add(listener);
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}
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private void notifyListeners(double frequency) {
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for (FrequencyListener listener : listeners) {
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listener.updateFrequency(frequency);
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}
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}
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// Adapted from https://stackoverflow.com/questions/53997426/java-how-to-get-current-frequency-of-audio-input
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@Override
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public void run() {
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final byte[] buf = new byte[2 << 16]; // <--- increase this for higher frequency resolution
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final int numberOfSamples = (buf.length / 2) / frameSize;
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Transform fft = FFTFactory.getInstance().create(numberOfSamples);
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int frequencyBin = sampleRate / (numberOfSamples / 2);
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while (true) {
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try {
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renderer.read(buf);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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// the stream represents each sample as two bytes -> decode
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final float[] samples = decode(buf);
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final float[][] transformed = fft.transform(samples);
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final float[] realPart = transformed[0];
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final float[] imaginaryPart = transformed[1];
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final double[] magnitudes = toMagnitudes(realPart, imaginaryPart);
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int maxIndex = 0;
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double max = Double.NEGATIVE_INFINITY;
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for (int i = 1; i < magnitudes.length / 2; i++) {
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if (i * frequencyBin < 20 || i * frequencyBin > 20000) {
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continue;
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}
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if (magnitudes[i] > max) {
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maxIndex = i;
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max = magnitudes[i];
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}
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}
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System.out.println((maxIndex + 1) * frequencyBin * 1.05);
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}
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}
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private float[] decode(final byte[] buf) {
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final float[] fbuf = new float[(buf.length / 2) / frameSize];
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int byteNum = 0;
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int i = 0;
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for (int pos = 0; pos < buf.length; pos += frameSize) {
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if (byteNum < 2) {
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int sample = byteToIntLittleEndian(buf, pos, frameSize);
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// normalize to [0,1] (not strictly necessary, but makes things easier)
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fbuf[i] = sample / NORMALIZATION_FACTOR_2_BYTES;
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i++;
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}
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byteNum++;
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byteNum %= 4;
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}
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return fbuf;
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}
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private double[] toMagnitudes(final float[] realPart, final float[] imaginaryPart) {
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final double[] powers = new double[realPart.length / 2];
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for (int i = 0; i < powers.length; i++) {
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powers[i] = Math.sqrt(realPart[i] * realPart[i] + imaginaryPart[i] * imaginaryPart[i]);
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}
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return powers;
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}
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private static int byteToIntLittleEndian(final byte[] buf, final int offset, final int bytesPerSample) {
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int sample = 0;
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for (int byteIndex = 0; byteIndex < bytesPerSample; byteIndex++) {
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final int aByte = buf[offset + byteIndex] & 0xff;
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sample += aByte << 8 * (byteIndex);
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}
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return sample;
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}
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}
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@ -0,0 +1,6 @@
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package sh.ball.audio;
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public interface FrequencyListener {
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void updateFrequency(double frequency);
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}
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@ -14,6 +14,8 @@ public interface Renderer<S, T> extends Runnable {
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void removeEffect(Object identifier);
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void removeEffect(Object identifier);
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void read(byte[] buffer) throws InterruptedException;
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void startRecord();
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void startRecord();
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T stopRecord();
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T stopRecord();
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@ -0,0 +1,279 @@
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/*
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* =================================================
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* Copyright 2011 tagtraum industries incorporated
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* All rights reserved.
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* =================================================
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*/
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// FROM: https://github.com/hendriks73/jipes/blob/master/src/main/java/com/tagtraum/jipes/math/FFTFactory.java
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// LICENSE: https://github.com/hendriks73/jipes/blob/master/LICENSE.txt
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// GNU LESSER GENERAL PUBLIC LICENSE Version 2.1, February 1999
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package sh.ball.audio.fft;
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/**
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* <p>Factory for FFTransforms. Using the factory allows for sliding-in a faster, perhaps
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* native implementation (like it's done in <a href="http://www.beatunes.com/">beaTunes</a>).
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* </p>
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* <p>In order to use a factory other than the default factory, you need to specify
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* its classname with the system property <code>com.tagtraum.jipes.math.FFTFactory</code>.
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* I.e.
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* <xmp>-Dcom.tagtraum.jipes.math.FFTFactory=YOUR.CLASSNAME.HERE</xmp>
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* <p>
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*
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* @author <a href="mailto:hs@tagtraum.com">Hendrik Schreiber</a>
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*/
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public abstract class FFTFactory {
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public static final String FACTORYCLASS_PROPERTY_NAME = FFTFactory.class.getName();
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private static FFTFactory instance;
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protected FFTFactory() {
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}
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/**
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* Creates a factory for FFT Transform objects.
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*
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* @return factory instance
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*/
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public synchronized static FFTFactory getInstance() {
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if (instance == null) {
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final String factoryClassname = System.getProperty(FACTORYCLASS_PROPERTY_NAME);
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if (factoryClassname != null) {
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try {
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instance = (FFTFactory) Class.forName(factoryClassname, true, Thread.currentThread().getContextClassLoader()).newInstance();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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if (instance == null) {
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// fall back to built-in factory
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instance = new JavaFFTFactory();
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}
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}
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return instance;
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}
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/**
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* Creates an instance of the fast Fourier transform (FFT).
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* By specifying the number of samples implementations can pre-create lookup tables to speed
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* up the actual transform.
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*
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* @param numberOfSamples number of samples the FFT instance should be able to process
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* @return FFT instance
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*/
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public abstract Transform create(int numberOfSamples);
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/**
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* Default implementation for a Java FFT factory.
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*/
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private static class JavaFFTFactory extends FFTFactory {
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private JavaFFT last;
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@Override
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public synchronized Transform create(final int numberOfSamples) {
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if (last != null && last.numberOfSamples == numberOfSamples) return last;
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last = new JavaFFT(numberOfSamples);
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return last;
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}
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}
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/**
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* Default implementation for a Java FFT.
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*/
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private static class JavaFFT implements Transform {
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private static final int MAX_FAST_BITS = 16;
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private static final int[][] FFT_BIT_TABLE = new int[MAX_FAST_BITS][];
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private final int numberOfSamples;
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private final int[] reverseIndices;
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private float[] frequencies;
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static {
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int len = 2;
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for (int b = 1; b <= MAX_FAST_BITS; b++) {
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FFT_BIT_TABLE[b - 1] = new int[len];
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for (int i = 0; i < len; i++) {
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FFT_BIT_TABLE[b - 1][i] = reverseBits(i, b);
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}
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len <<= 1;
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}
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}
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private JavaFFT(final int numberOfSamples) {
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if (!isPowerOfTwo(numberOfSamples)) throw new IllegalArgumentException("N is not a power of 2");
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if (numberOfSamples <=0) throw new IllegalArgumentException("N must be greater than 0");
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this.numberOfSamples = numberOfSamples;
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final int numberOfBits = getNumberOfNeededBits(numberOfSamples);
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this.reverseIndices = new int[numberOfSamples];
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for (int i = 0; i < numberOfSamples; i++) {
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final int j = fastReverseBits(i, numberOfBits);
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this.reverseIndices[i] = j;
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}
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this.frequencies = new float[numberOfSamples];
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for (int index=0; index<numberOfSamples; index++) {
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||||||
|
if (index <= numberOfSamples / 2) {
|
||||||
|
this.frequencies[index] = index / numberOfSamples;
|
||||||
|
} else {
|
||||||
|
this.frequencies[index] = -((numberOfSamples - index) / (float) numberOfSamples);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public float[][] inverseTransform(final float[] real, final float[] imaginary) throws UnsupportedOperationException {
|
||||||
|
final float[][] out = new float[2][real.length];
|
||||||
|
transform(true, real, imaginary, out[0], out[1]);
|
||||||
|
return out;
|
||||||
|
}
|
||||||
|
|
||||||
|
public float[][] transform(final float[] real) throws UnsupportedOperationException {
|
||||||
|
final float[][] out = new float[3][real.length];
|
||||||
|
transform(false, real, null, out[0], out[1]);
|
||||||
|
out[2] = frequencies.clone();
|
||||||
|
return out;
|
||||||
|
}
|
||||||
|
|
||||||
|
public float[][] transform(final float[] real, final float[] imaginary) throws UnsupportedOperationException {
|
||||||
|
final float[][] out = new float[3][real.length];
|
||||||
|
transform(false, real, imaginary, out[0], out[1]);
|
||||||
|
out[2] = frequencies.clone();
|
||||||
|
return out;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Actual fast Fourier transform implementation.
|
||||||
|
*
|
||||||
|
* @param inverse inverse or not
|
||||||
|
* @param realIn real portion input
|
||||||
|
* @param imaginaryIn imaginary in
|
||||||
|
* @param realOut real out
|
||||||
|
* @param imaginaryOut imaginary out
|
||||||
|
*/
|
||||||
|
public void transform(final boolean inverse,
|
||||||
|
final float[] realIn,
|
||||||
|
final float[] imaginaryIn,
|
||||||
|
final float[] realOut,
|
||||||
|
final float[] imaginaryOut) {
|
||||||
|
if (realIn.length != numberOfSamples) {
|
||||||
|
throw new IllegalArgumentException("Number of samples must be " + numberOfSamples + " for this instance of JavaFFT");
|
||||||
|
}
|
||||||
|
|
||||||
|
for (int i = 0; i < numberOfSamples; i++) {
|
||||||
|
realOut[this.reverseIndices[i]] = realIn[i];
|
||||||
|
}
|
||||||
|
if (imaginaryIn != null) {
|
||||||
|
for (int i = 0; i < numberOfSamples; i++) {
|
||||||
|
imaginaryOut[this.reverseIndices[i]] = imaginaryIn[i];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int blockEnd = 1;
|
||||||
|
final double angleNumerator;
|
||||||
|
if (inverse) angleNumerator = -2.0 * Math.PI;
|
||||||
|
else angleNumerator = 2.0 * Math.PI;
|
||||||
|
for (int blockSize = 2; blockSize <= numberOfSamples; blockSize <<= 1) {
|
||||||
|
final double deltaAngle = angleNumerator / (float) blockSize;
|
||||||
|
final double sm2 = (-Math.sin(-2 * deltaAngle));
|
||||||
|
final double sm1 = (-Math.sin(-deltaAngle));
|
||||||
|
final double cm2 = (Math.cos(-2 * deltaAngle));
|
||||||
|
final double cm1 = (Math.cos(-deltaAngle));
|
||||||
|
final double w = 2 * cm1;
|
||||||
|
double ar1;
|
||||||
|
double ai1;
|
||||||
|
double ar2;
|
||||||
|
double ai2;
|
||||||
|
|
||||||
|
for (int i = 0; i < numberOfSamples; i += blockSize) {
|
||||||
|
ar2 = cm2;
|
||||||
|
ar1 = cm1;
|
||||||
|
|
||||||
|
ai2 = sm2;
|
||||||
|
ai1 = sm1;
|
||||||
|
|
||||||
|
for (int j = i, n = 0; n < blockEnd; j++, n++) {
|
||||||
|
final double ar0 = w * ar1 - ar2;
|
||||||
|
ar2 = ar1;
|
||||||
|
ar1 = ar0;
|
||||||
|
|
||||||
|
final double ai0 = w * ai1 - ai2;
|
||||||
|
ai2 = ai1;
|
||||||
|
ai1 = ai0;
|
||||||
|
|
||||||
|
final int k = j + blockEnd;
|
||||||
|
/* temp real, temp imaginary */
|
||||||
|
final double tr = ar0 * realOut[k] - ai0 * imaginaryOut[k];
|
||||||
|
final double ti = ar0 * imaginaryOut[k] + ai0 * realOut[k];
|
||||||
|
|
||||||
|
realOut[k] = (float) (realOut[j] - tr);
|
||||||
|
imaginaryOut[k] = (float)(imaginaryOut[j] - ti);
|
||||||
|
|
||||||
|
realOut[j] += tr;
|
||||||
|
imaginaryOut[j] += ti;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
blockEnd = blockSize;
|
||||||
|
}
|
||||||
|
|
||||||
|
// normalize, if inverse transform
|
||||||
|
if (inverse) {
|
||||||
|
for (int i = 0; i < numberOfSamples; i++) {
|
||||||
|
realOut[i] /= (float) numberOfSamples;
|
||||||
|
imaginaryOut[i] /= (float) numberOfSamples;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private static int getNumberOfNeededBits(final int powerOfTwo) {
|
||||||
|
for (int i = 0; true; i++) {
|
||||||
|
final int j = powerOfTwo & 1 << i;
|
||||||
|
if (j != 0) return i;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private static int reverseBits(final int index, final int numberOfBits) {
|
||||||
|
int ind = index;
|
||||||
|
int rev = 0;
|
||||||
|
for (int i = 0; i < numberOfBits; i++) {
|
||||||
|
rev = rev << 1 | ind & 1;
|
||||||
|
ind >>= 1;
|
||||||
|
}
|
||||||
|
return rev;
|
||||||
|
}
|
||||||
|
|
||||||
|
private static int fastReverseBits(final int index, final int numberOfBits) {
|
||||||
|
if (numberOfBits <= MAX_FAST_BITS)
|
||||||
|
return FFT_BIT_TABLE[numberOfBits - 1][index];
|
||||||
|
else
|
||||||
|
return reverseBits(index, numberOfBits);
|
||||||
|
}
|
||||||
|
|
||||||
|
private static boolean isPowerOfTwo(final int number) {
|
||||||
|
return (number & (number - 1)) == 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public boolean equals(final Object o) {
|
||||||
|
if (this == o) return true;
|
||||||
|
if (o == null || getClass() != o.getClass()) return false;
|
||||||
|
final JavaFFT javaFFT = (JavaFFT) o;
|
||||||
|
if (numberOfSamples != javaFFT.numberOfSamples) return false;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public int hashCode() {
|
||||||
|
return numberOfSamples;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String toString() {
|
||||||
|
return "JavaFFT{" +
|
||||||
|
"N=" + numberOfSamples +
|
||||||
|
'}';
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
}
|
|
@ -0,0 +1,502 @@
|
||||||
|
GNU LESSER GENERAL PUBLIC LICENSE
|
||||||
|
Version 2.1, February 1999
|
||||||
|
|
||||||
|
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
|
||||||
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||||
|
Everyone is permitted to copy and distribute verbatim copies
|
||||||
|
of this license document, but changing it is not allowed.
|
||||||
|
|
||||||
|
[This is the first released version of the Lesser GPL. It also counts
|
||||||
|
as the successor of the GNU Library Public License, version 2, hence
|
||||||
|
the version number 2.1.]
|
||||||
|
|
||||||
|
Preamble
|
||||||
|
|
||||||
|
The licenses for most software are designed to take away your
|
||||||
|
freedom to share and change it. By contrast, the GNU General Public
|
||||||
|
Licenses are intended to guarantee your freedom to share and change
|
||||||
|
free software--to make sure the software is free for all its users.
|
||||||
|
|
||||||
|
This license, the Lesser General Public License, applies to some
|
||||||
|
specially designated software packages--typically libraries--of the
|
||||||
|
Free Software Foundation and other authors who decide to use it. You
|
||||||
|
can use it too, but we suggest you first think carefully about whether
|
||||||
|
this license or the ordinary General Public License is the better
|
||||||
|
strategy to use in any particular case, based on the explanations below.
|
||||||
|
|
||||||
|
When we speak of free software, we are referring to freedom of use,
|
||||||
|
not price. Our General Public Licenses are designed to make sure that
|
||||||
|
you have the freedom to distribute copies of free software (and charge
|
||||||
|
for this service if you wish); that you receive source code or can get
|
||||||
|
it if you want it; that you can change the software and use pieces of
|
||||||
|
it in new free programs; and that you are informed that you can do
|
||||||
|
these things.
|
||||||
|
|
||||||
|
To protect your rights, we need to make restrictions that forbid
|
||||||
|
distributors to deny you these rights or to ask you to surrender these
|
||||||
|
rights. These restrictions translate to certain responsibilities for
|
||||||
|
you if you distribute copies of the library or if you modify it.
|
||||||
|
|
||||||
|
For example, if you distribute copies of the library, whether gratis
|
||||||
|
or for a fee, you must give the recipients all the rights that we gave
|
||||||
|
you. You must make sure that they, too, receive or can get the source
|
||||||
|
code. If you link other code with the library, you must provide
|
||||||
|
complete object files to the recipients, so that they can relink them
|
||||||
|
with the library after making changes to the library and recompiling
|
||||||
|
it. And you must show them these terms so they know their rights.
|
||||||
|
|
||||||
|
We protect your rights with a two-step method: (1) we copyright the
|
||||||
|
library, and (2) we offer you this license, which gives you legal
|
||||||
|
permission to copy, distribute and/or modify the library.
|
||||||
|
|
||||||
|
To protect each distributor, we want to make it very clear that
|
||||||
|
there is no warranty for the free library. Also, if the library is
|
||||||
|
modified by someone else and passed on, the recipients should know
|
||||||
|
that what they have is not the original version, so that the original
|
||||||
|
author's reputation will not be affected by problems that might be
|
||||||
|
introduced by others.
|
||||||
|
|
||||||
|
Finally, software patents pose a constant threat to the existence of
|
||||||
|
any free program. We wish to make sure that a company cannot
|
||||||
|
effectively restrict the users of a free program by obtaining a
|
||||||
|
restrictive license from a patent holder. Therefore, we insist that
|
||||||
|
any patent license obtained for a version of the library must be
|
||||||
|
consistent with the full freedom of use specified in this license.
|
||||||
|
|
||||||
|
Most GNU software, including some libraries, is covered by the
|
||||||
|
ordinary GNU General Public License. This license, the GNU Lesser
|
||||||
|
General Public License, applies to certain designated libraries, and
|
||||||
|
is quite different from the ordinary General Public License. We use
|
||||||
|
this license for certain libraries in order to permit linking those
|
||||||
|
libraries into non-free programs.
|
||||||
|
|
||||||
|
When a program is linked with a library, whether statically or using
|
||||||
|
a shared library, the combination of the two is legally speaking a
|
||||||
|
combined work, a derivative of the original library. The ordinary
|
||||||
|
General Public License therefore permits such linking only if the
|
||||||
|
entire combination fits its criteria of freedom. The Lesser General
|
||||||
|
Public License permits more lax criteria for linking other code with
|
||||||
|
the library.
|
||||||
|
|
||||||
|
We call this license the "Lesser" General Public License because it
|
||||||
|
does Less to protect the user's freedom than the ordinary General
|
||||||
|
Public License. It also provides other free software developers Less
|
||||||
|
of an advantage over competing non-free programs. These disadvantages
|
||||||
|
are the reason we use the ordinary General Public License for many
|
||||||
|
libraries. However, the Lesser license provides advantages in certain
|
||||||
|
special circumstances.
|
||||||
|
|
||||||
|
For example, on rare occasions, there may be a special need to
|
||||||
|
encourage the widest possible use of a certain library, so that it becomes
|
||||||
|
a de-facto standard. To achieve this, non-free programs must be
|
||||||
|
allowed to use the library. A more frequent case is that a free
|
||||||
|
library does the same job as widely used non-free libraries. In this
|
||||||
|
case, there is little to gain by limiting the free library to free
|
||||||
|
software only, so we use the Lesser General Public License.
|
||||||
|
|
||||||
|
In other cases, permission to use a particular library in non-free
|
||||||
|
programs enables a greater number of people to use a large body of
|
||||||
|
free software. For example, permission to use the GNU C Library in
|
||||||
|
non-free programs enables many more people to use the whole GNU
|
||||||
|
operating system, as well as its variant, the GNU/Linux operating
|
||||||
|
system.
|
||||||
|
|
||||||
|
Although the Lesser General Public License is Less protective of the
|
||||||
|
users' freedom, it does ensure that the user of a program that is
|
||||||
|
linked with the Library has the freedom and the wherewithal to run
|
||||||
|
that program using a modified version of the Library.
|
||||||
|
|
||||||
|
The precise terms and conditions for copying, distribution and
|
||||||
|
modification follow. Pay close attention to the difference between a
|
||||||
|
"work based on the library" and a "work that uses the library". The
|
||||||
|
former contains code derived from the library, whereas the latter must
|
||||||
|
be combined with the library in order to run.
|
||||||
|
|
||||||
|
GNU LESSER GENERAL PUBLIC LICENSE
|
||||||
|
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
|
||||||
|
|
||||||
|
0. This License Agreement applies to any software library or other
|
||||||
|
program which contains a notice placed by the copyright holder or
|
||||||
|
other authorized party saying it may be distributed under the terms of
|
||||||
|
this Lesser General Public License (also called "this License").
|
||||||
|
Each licensee is addressed as "you".
|
||||||
|
|
||||||
|
A "library" means a collection of software functions and/or data
|
||||||
|
prepared so as to be conveniently linked with application programs
|
||||||
|
(which use some of those functions and data) to form executables.
|
||||||
|
|
||||||
|
The "Library", below, refers to any such software library or work
|
||||||
|
which has been distributed under these terms. A "work based on the
|
||||||
|
Library" means either the Library or any derivative work under
|
||||||
|
copyright law: that is to say, a work containing the Library or a
|
||||||
|
portion of it, either verbatim or with modifications and/or translated
|
||||||
|
straightforwardly into another language. (Hereinafter, translation is
|
||||||
|
included without limitation in the term "modification".)
|
||||||
|
|
||||||
|
"Source code" for a work means the preferred form of the work for
|
||||||
|
making modifications to it. For a library, complete source code means
|
||||||
|
all the source code for all modules it contains, plus any associated
|
||||||
|
interface definition files, plus the scripts used to control compilation
|
||||||
|
and installation of the library.
|
||||||
|
|
||||||
|
Activities other than copying, distribution and modification are not
|
||||||
|
covered by this License; they are outside its scope. The act of
|
||||||
|
running a program using the Library is not restricted, and output from
|
||||||
|
such a program is covered only if its contents constitute a work based
|
||||||
|
on the Library (independent of the use of the Library in a tool for
|
||||||
|
writing it). Whether that is true depends on what the Library does
|
||||||
|
and what the program that uses the Library does.
|
||||||
|
|
||||||
|
1. You may copy and distribute verbatim copies of the Library's
|
||||||
|
complete source code as you receive it, in any medium, provided that
|
||||||
|
you conspicuously and appropriately publish on each copy an
|
||||||
|
appropriate copyright notice and disclaimer of warranty; keep intact
|
||||||
|
all the notices that refer to this License and to the absence of any
|
||||||
|
warranty; and distribute a copy of this License along with the
|
||||||
|
Library.
|
||||||
|
|
||||||
|
You may charge a fee for the physical act of transferring a copy,
|
||||||
|
and you may at your option offer warranty protection in exchange for a
|
||||||
|
fee.
|
||||||
|
|
||||||
|
2. You may modify your copy or copies of the Library or any portion
|
||||||
|
of it, thus forming a work based on the Library, and copy and
|
||||||
|
distribute such modifications or work under the terms of Section 1
|
||||||
|
above, provided that you also meet all of these conditions:
|
||||||
|
|
||||||
|
a) The modified work must itself be a software library.
|
||||||
|
|
||||||
|
b) You must cause the files modified to carry prominent notices
|
||||||
|
stating that you changed the files and the date of any change.
|
||||||
|
|
||||||
|
c) You must cause the whole of the work to be licensed at no
|
||||||
|
charge to all third parties under the terms of this License.
|
||||||
|
|
||||||
|
d) If a facility in the modified Library refers to a function or a
|
||||||
|
table of data to be supplied by an application program that uses
|
||||||
|
the facility, other than as an argument passed when the facility
|
||||||
|
is invoked, then you must make a good faith effort to ensure that,
|
||||||
|
in the event an application does not supply such function or
|
||||||
|
table, the facility still operates, and performs whatever part of
|
||||||
|
its purpose remains meaningful.
|
||||||
|
|
||||||
|
(For example, a function in a library to compute square roots has
|
||||||
|
a purpose that is entirely well-defined independent of the
|
||||||
|
application. Therefore, Subsection 2d requires that any
|
||||||
|
application-supplied function or table used by this function must
|
||||||
|
be optional: if the application does not supply it, the square
|
||||||
|
root function must still compute square roots.)
|
||||||
|
|
||||||
|
These requirements apply to the modified work as a whole. If
|
||||||
|
identifiable sections of that work are not derived from the Library,
|
||||||
|
and can be reasonably considered independent and separate works in
|
||||||
|
themselves, then this License, and its terms, do not apply to those
|
||||||
|
sections when you distribute them as separate works. But when you
|
||||||
|
distribute the same sections as part of a whole which is a work based
|
||||||
|
on the Library, the distribution of the whole must be on the terms of
|
||||||
|
this License, whose permissions for other licensees extend to the
|
||||||
|
entire whole, and thus to each and every part regardless of who wrote
|
||||||
|
it.
|
||||||
|
|
||||||
|
Thus, it is not the intent of this section to claim rights or contest
|
||||||
|
your rights to work written entirely by you; rather, the intent is to
|
||||||
|
exercise the right to control the distribution of derivative or
|
||||||
|
collective works based on the Library.
|
||||||
|
|
||||||
|
In addition, mere aggregation of another work not based on the Library
|
||||||
|
with the Library (or with a work based on the Library) on a volume of
|
||||||
|
a storage or distribution medium does not bring the other work under
|
||||||
|
the scope of this License.
|
||||||
|
|
||||||
|
3. You may opt to apply the terms of the ordinary GNU General Public
|
||||||
|
License instead of this License to a given copy of the Library. To do
|
||||||
|
this, you must alter all the notices that refer to this License, so
|
||||||
|
that they refer to the ordinary GNU General Public License, version 2,
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|
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Once this change is made in a given copy, it is irreversible for
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|
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|
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This option is useful when you wish to copy part of the code of
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4. You may copy and distribute the Library (or a portion or
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||||||
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|
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If distribution of object code is made by offering access to copy
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||||||
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|
||||||
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||||||
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||||||
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||||||
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||||||
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When a "work that uses the Library" uses material from a header file
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||||||
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Whether this is true is especially significant if the work can be
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If such an object file uses only numerical parameters, data
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||||||
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|
||||||
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||||||
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||||||
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||||||
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|
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6. As an exception to the Sections above, you may also combine or
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|
||||||
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You must give prominent notice with each copy of the work that the
|
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|
||||||
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||||||
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||||||
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|
||||||
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|
||||||
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||||||
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||||||
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||||||
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|
||||||
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|
||||||
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||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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||||||
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|
||||||
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|
||||||
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||||||
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|
||||||
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||||||
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||||||
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||||||
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|
||||||
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|
||||||
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|
||||||
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||||||
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|
||||||
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|
||||||
|
It may happen that this requirement contradicts the license
|
||||||
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|
||||||
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|
||||||
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|
||||||
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||||||
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|
||||||
|
7. You may place library facilities that are a work based on the
|
||||||
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Library side-by-side in a single library together with other library
|
||||||
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|
||||||
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|
||||||
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|
||||||
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||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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b) Give prominent notice with the combined library of the fact
|
||||||
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|
||||||
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|
||||||
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|
||||||
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8. You may not copy, modify, sublicense, link with, or distribute
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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|
||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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|
||||||
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10. Each time you redistribute the Library (or any work based on the
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||||||
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||||||
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You are not responsible for enforcing compliance by third parties with
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||||||
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||||||
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|
||||||
|
11. If, as a consequence of a court judgment or allegation of patent
|
||||||
|
infringement or for any other reason (not limited to patent issues),
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||||||
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conditions are imposed on you (whether by court order, agreement or
|
||||||
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|
||||||
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|
||||||
|
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|
||||||
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|
||||||
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||||||
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|
||||||
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||||||
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||||||
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|
||||||
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If any portion of this section is held invalid or unenforceable under any
|
||||||
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|
||||||
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and the section as a whole is intended to apply in other circumstances.
|
||||||
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|
||||||
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It is not the purpose of this section to induce you to infringe any
|
||||||
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|
||||||
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|
||||||
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|
||||||
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||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
|
This section is intended to make thoroughly clear what is believed to
|
||||||
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be a consequence of the rest of this License.
|
||||||
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|
||||||
|
12. If the distribution and/or use of the Library is restricted in
|
||||||
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|
||||||
|
original copyright holder who places the Library under this License may add
|
||||||
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an explicit geographical distribution limitation excluding those countries,
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||||||
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so that distribution is permitted only in or among countries not thus
|
||||||
|
excluded. In such case, this License incorporates the limitation as if
|
||||||
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written in the body of this License.
|
||||||
|
|
||||||
|
13. The Free Software Foundation may publish revised and/or new
|
||||||
|
versions of the Lesser General Public License from time to time.
|
||||||
|
Such new versions will be similar in spirit to the present version,
|
||||||
|
but may differ in detail to address new problems or concerns.
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||||||
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|
||||||
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Each version is given a distinguishing version number. If the Library
|
||||||
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|
||||||
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||||||
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|
||||||
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|
||||||
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license version number, you may choose any version ever published by
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||||||
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|
||||||
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|
||||||
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14. If you wish to incorporate parts of the Library into other free
|
||||||
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programs whose distribution conditions are incompatible with these,
|
||||||
|
write to the author to ask for permission. For software which is
|
||||||
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|
||||||
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Software Foundation; we sometimes make exceptions for this. Our
|
||||||
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|
||||||
|
of all derivatives of our free software and of promoting the sharing
|
||||||
|
and reuse of software generally.
|
||||||
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|
||||||
|
NO WARRANTY
|
||||||
|
|
||||||
|
15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
|
||||||
|
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
|
||||||
|
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
|
||||||
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OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
|
||||||
|
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||||
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PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
|
||||||
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LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
|
||||||
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THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||||
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|
||||||
|
16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
|
||||||
|
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
|
||||||
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AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
|
||||||
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||||||
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|
||||||
|
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
|
||||||
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RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
|
||||||
|
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
|
||||||
|
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
||||||
|
DAMAGES.
|
||||||
|
|
||||||
|
END OF TERMS AND CONDITIONS
|
||||||
|
|
||||||
|
How to Apply These Terms to Your New Libraries
|
||||||
|
|
||||||
|
If you develop a new library, and you want it to be of the greatest
|
||||||
|
possible use to the public, we recommend making it free software that
|
||||||
|
everyone can redistribute and change. You can do so by permitting
|
||||||
|
redistribution under these terms (or, alternatively, under the terms of the
|
||||||
|
ordinary General Public License).
|
||||||
|
|
||||||
|
To apply these terms, attach the following notices to the library. It is
|
||||||
|
safest to attach them to the start of each source file to most effectively
|
||||||
|
convey the exclusion of warranty; and each file should have at least the
|
||||||
|
"copyright" line and a pointer to where the full notice is found.
|
||||||
|
|
||||||
|
<one line to give the library's name and a brief idea of what it does.>
|
||||||
|
Copyright (C) <year> <name of author>
|
||||||
|
|
||||||
|
This library is free software; you can redistribute it and/or
|
||||||
|
modify it under the terms of the GNU Lesser General Public
|
||||||
|
License as published by the Free Software Foundation; either
|
||||||
|
version 2.1 of the License, or (at your option) any later version.
|
||||||
|
|
||||||
|
This library 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
|
||||||
|
Lesser General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU Lesser General Public
|
||||||
|
License along with this library; if not, write to the Free Software
|
||||||
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||||
|
|
||||||
|
Also add information on how to contact you by electronic and paper mail.
|
||||||
|
|
||||||
|
You should also get your employer (if you work as a programmer) or your
|
||||||
|
school, if any, to sign a "copyright disclaimer" for the library, if
|
||||||
|
necessary. Here is a sample; alter the names:
|
||||||
|
|
||||||
|
Yoyodyne, Inc., hereby disclaims all copyright interest in the
|
||||||
|
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
|
||||||
|
|
||||||
|
<signature of Ty Coon>, 1 April 1990
|
||||||
|
Ty Coon, President of Vice
|
||||||
|
|
||||||
|
That's all there is to it!
|
|
@ -0,0 +1,60 @@
|
||||||
|
/*
|
||||||
|
* =================================================
|
||||||
|
* Copyright 2011 tagtraum industries incorporated
|
||||||
|
* All rights reserved.
|
||||||
|
* =================================================
|
||||||
|
*/
|
||||||
|
|
||||||
|
// FROM: https://github.com/hendriks73/jipes/blob/master/src/main/java/com/tagtraum/jipes/math/Transform.java
|
||||||
|
// LICENSE: https://github.com/hendriks73/jipes/blob/master/LICENSE.txt
|
||||||
|
// GNU LESSER GENERAL PUBLIC LICENSE Version 2.1, February 1999
|
||||||
|
|
||||||
|
package sh.ball.audio.fft;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Transform that can be obtained for example through a {@link FFTFactory}.
|
||||||
|
* <p/>
|
||||||
|
* The forward transform is typically from the time domain to the frequency domain,
|
||||||
|
* the inverse the other way around. Note that not all methods of this interface are necessarily implemented
|
||||||
|
* by its implementing classes. Unsupported methods throw {@link UnsupportedOperationException}s.
|
||||||
|
* <p/>
|
||||||
|
* Date: 1/15/11
|
||||||
|
* Time: 8:03 PM
|
||||||
|
*
|
||||||
|
* @author <a href="mailto:hs@tagtraum.com">Hendrik Schreiber</a>
|
||||||
|
*/
|
||||||
|
public interface Transform {
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Performs transform on real values.
|
||||||
|
*
|
||||||
|
* @param real input array of real numbers
|
||||||
|
* @return array with the real and the imaginary part of the transform, the third float array contains
|
||||||
|
* the normalized frequencies, i.e. 1.0 is equal to the sample rate of the input
|
||||||
|
* @throws UnsupportedOperationException should the implementation not support this operation
|
||||||
|
*/
|
||||||
|
public float[][] transform(float[] real) throws UnsupportedOperationException;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Performs a complex transform.
|
||||||
|
*
|
||||||
|
* @param real input array of floats
|
||||||
|
* @param imaginary input array of floats
|
||||||
|
* @return array with the real and the imaginary part of the transform, the third float array contains
|
||||||
|
* the normalized frequencies, i.e. 1.0 is equal to the sample rate of the input
|
||||||
|
* @throws UnsupportedOperationException should the implementation not support this operation
|
||||||
|
*/
|
||||||
|
public float[][] transform(float[] real, float[] imaginary) throws UnsupportedOperationException;
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Performs an inverse transform.
|
||||||
|
*
|
||||||
|
* @param real input array of floats
|
||||||
|
* @param imaginary input array of floats
|
||||||
|
* @return array with the real and the imaginary part of the transform
|
||||||
|
* @throws UnsupportedOperationException should the implementation not support this operation
|
||||||
|
*/
|
||||||
|
public float[][] inverseTransform(float[] real, float[] imaginary) throws UnsupportedOperationException;
|
||||||
|
|
||||||
|
}
|
|
@ -1,6 +1,8 @@
|
||||||
package sh.ball.gui;
|
package sh.ball.gui;
|
||||||
|
|
||||||
import javafx.scene.control.*;
|
import javafx.scene.control.*;
|
||||||
|
import sh.ball.audio.FrequencyAnalyser;
|
||||||
|
import sh.ball.audio.FrequencyListener;
|
||||||
import sh.ball.audio.Renderer;
|
import sh.ball.audio.Renderer;
|
||||||
import sh.ball.audio.effect.Effect;
|
import sh.ball.audio.effect.Effect;
|
||||||
import sh.ball.audio.effect.EffectType;
|
import sh.ball.audio.effect.EffectType;
|
||||||
|
@ -42,7 +44,7 @@ import sh.ball.parser.ParserFactory;
|
||||||
import sh.ball.shapes.Shape;
|
import sh.ball.shapes.Shape;
|
||||||
import sh.ball.shapes.Vector2;
|
import sh.ball.shapes.Vector2;
|
||||||
|
|
||||||
public class Controller implements Initializable {
|
public class Controller implements Initializable, FrequencyListener {
|
||||||
|
|
||||||
private static final int SAMPLE_RATE = 192000;
|
private static final int SAMPLE_RATE = 192000;
|
||||||
private static final InputStream DEFAULT_OBJ = Controller.class.getResourceAsStream("/models/cube.obj");
|
private static final InputStream DEFAULT_OBJ = Controller.class.getResourceAsStream("/models/cube.obj");
|
||||||
|
@ -220,6 +222,7 @@ public class Controller implements Initializable {
|
||||||
|
|
||||||
executor.submit(producer);
|
executor.submit(producer);
|
||||||
new Thread(renderer).start();
|
new Thread(renderer).start();
|
||||||
|
new Thread(new FrequencyAnalyser<>(renderer, 2, SAMPLE_RATE)).start();
|
||||||
}
|
}
|
||||||
|
|
||||||
private void toggleRecord() {
|
private void toggleRecord() {
|
||||||
|
@ -338,4 +341,9 @@ public class Controller implements Initializable {
|
||||||
protected void setObjRotate(Vector3 vector) {
|
protected void setObjRotate(Vector3 vector) {
|
||||||
producer.setFrameSettings(ObjSettingsFactory.rotation(vector));
|
producer.setFrameSettings(ObjSettingsFactory.rotation(vector));
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void updateFrequency(double frequency) {
|
||||||
|
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
Ładowanie…
Reference in New Issue