splitting into PSound/PSound2

processing/core/PSound2.java

@@ -0,0 +1,185 @@
+/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+
+/*
+  PSound2 - java 1.3 audio loader and player
+  Part of the Processing project - http://processing.org
+
+  Copyright (c) 2004 Ben Fry and Casey Reas
+
+  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., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+*/
+
+package processing.core;
+
+import java.io.*;
+import javax.sound.sampled.*;
+
+// add check for reflection in host applet for sound completion
+
+// also needs to register for stop events with applet
+
+// http://javaalmanac.com/egs/javax.sound.sampled/pkg.html
+
+
+
+public class PSound2 extends PSound {
+  PApplet applet;
+  Clip clip;
+
+
+  public PSound2(PApplet applet, InputStream input) {
+    this.applet = applet;
+
+    try {
+      AudioInputStream stream =
+        AudioSystem.getAudioInputStream(input);
+
+      // At present, ALAW and ULAW encodings must be converted
+      // to PCM_SIGNED before it can be played
+      AudioFormat format = stream.getFormat();
+      if (format.getEncoding() != AudioFormat.Encoding.PCM_SIGNED) {
+        format = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED,
+                                 format.getSampleRate(),
+                                 format.getSampleSizeInBits()*2,
+                                 format.getChannels(),
+                                 format.getFrameSize()*2,
+                                 format.getFrameRate(),
+                                 true);  // big endian
+        stream = AudioSystem.getAudioInputStream(format, stream);
+      }
+
+      int frameLength = (int) stream.getFrameLength();
+      int frameSize = format.getFrameSize();
+      DataLine.Info info =
+        new DataLine.Info(Clip.class, stream.getFormat(),
+                          frameLength * frameSize);
+
+      Clip clip = (Clip) AudioSystem.getLine(info);
+
+      // This method does not return until completely loaded
+      clip.open(stream);
+
+      // determining when a sample is done
+      // Add a listener for line events
+      /*
+        clip.addLineListener(new LineListener() {
+        public void update(LineEvent evt) {
+        if (evt.getType() == LineEvent.Type.STOP) {
+        }
+        }
+        });
+      */
+
+    } catch (Exception e) {
+      error("<init>", e);
+    }
+  }
+
+
+  public void play() {
+    clip.start();
+  }
+
+
+  /**
+   * either sets repeat flag, or begins playing (and sets)
+   */
+  public void loop() {
+    clip.loop(Clip.LOOP_CONTINUOUSLY);
+  }
+
+
+  /**
+   * ala java 1.3 loop docs:
+   * "any current looping should cease and playback should
+   * continue to the end of the clip."
+   */
+  public void noLoop() {
+    clip.loop(0);
+  }
+
+
+  // Play and repeat for a certain number of times
+  //int numberOfPlays = 3;
+  //clip.loop(numberOfPlays-1);
+
+
+  public void pause() {
+    clip.stop();
+  }
+
+
+  /**
+   * Stops the audio and rewinds to the beginning.
+   */
+  public void stop() {
+    clip.stop();
+    clip.setFramePosition(0);
+  }
+
+
+  /**
+   * current position inside the clip (in seconds, just like video)
+   */
+  public float time() {
+    return (float) (clip.getMicrosecondPosition()/1000000.0d);
+  }
+
+
+  /**
+   * duration of the clip in seconds
+   */
+  public float duration() {
+    return (float) (clip.getBufferSize() /
+                    (clip.getFormat().getFrameSize() *
+                     clip.getFormat().getFrameRate()));
+  }
+
+
+  public void volume(float v) {  // ranges 0..1
+    FloatControl gainControl =
+      (FloatControl)clip.getControl(FloatControl.Type.MASTER_GAIN);
+    double gain = .5D;    // number between 0 and 1 (loudest)
+    float dB = (float)(Math.log(gain)/Math.log(10.0)*20.0);
+    gainControl.setValue(dB);
+  }
+
+  /** mute */
+  /*
+  public void noVolume() {
+    BooleanControl muteControl =
+      (BooleanControl)clip.getControl(BooleanControl.Type.MUTE);
+    muteControl.setValue(true);
+  }
+  */
+
+  /** disable mute */
+  /*
+  public void volume() {
+    muteControl.setValue(false);
+  }
+  */
+
+
+  /**
+   * General error reporting, all corraled here just in case
+   * I think of something slightly more intelligent to do.
+   */
+  protected void error(String where, Exception e) {
+    applet.die("Error inside PSound2." + where + "()", e);
+    //e.printStackTrace();
+  }
+}