diff options
author | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2008-03-22 02:15:12 +0000 |
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committer | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2008-03-22 02:15:12 +0000 |
commit | a764e59e1d3a8e330f0d484fdb26b35ca3f0b2e4 (patch) | |
tree | c4ecadccdecf2809b99c0da0545f255a6ad25bb5 /src/java/com/cycling74/msp/AudioFileBuffer.java |
bringing pdj-0.8.3 into the main branchsvn2git-root
svn path=/trunk/externals/loaders/pdj/; revision=9621
Diffstat (limited to 'src/java/com/cycling74/msp/AudioFileBuffer.java')
-rw-r--r-- | src/java/com/cycling74/msp/AudioFileBuffer.java | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/java/com/cycling74/msp/AudioFileBuffer.java b/src/java/com/cycling74/msp/AudioFileBuffer.java new file mode 100644 index 0000000..b2e76f3 --- /dev/null +++ b/src/java/com/cycling74/msp/AudioFileBuffer.java @@ -0,0 +1,116 @@ +package com.cycling74.msp; + +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.IOException; + +import javax.sound.sampled.AudioFormat; +import javax.sound.sampled.AudioInputStream; +import javax.sound.sampled.AudioSystem; +import javax.sound.sampled.UnsupportedAudioFileException; + +import com.cycling74.max.MessageReceiver; + +/** + * Work in progress, target: 0.8.4 + */ +class AudioFileBuffer { + + /** file buffer value */ + public float buf[][]; + + /** Value of the message that will be sended to MessageReceiver when the file will be loaded */ + public static final int FINISHED_READING = 1; + + private MessageReceiver callback = null; + private String file; + private AudioFormat audioFormat; + private AudioFormat targetAudioFormat; + + // getters values + private float sampleRate; + private int sampleBitFormat; + private boolean sampleBigEndian; + private int sampleChannels; + private long sampleFrames; + + public AudioFileBuffer(String filename) throws FileNotFoundException, IOException, UnsupportedAudioFileException { + open(filename); + } + + public AudioFileBuffer(String filename, MessageReceiver callback) throws FileNotFoundException, IOException, UnsupportedAudioFileException { + this.callback = callback; + open(filename); + } + + public void open(String filename) throws FileNotFoundException, IOException, UnsupportedAudioFileException { + // file format + sampleRate = 0; + sampleBitFormat = 0; + sampleChannels = 0; + sampleFrames = 0; + + AudioInputStream sourceAudioInputStream = AudioSystem.getAudioInputStream( new FileInputStream(file) ); + AudioFormat sourceAudioFormat = sourceAudioInputStream.getFormat(); + targetAudioFormat = new AudioFormat( + AudioFormat.Encoding.PCM_UNSIGNED, // Encoding + getSystemSampleRate(), // Sample rate + 16, // bit + sourceAudioFormat.getChannels(), // channel + sourceAudioFormat.getFrameSize(), // frame size + sourceAudioFormat.getFrameRate(), // frame rate + false ); // big Endian + AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(audioFormat, sourceAudioInputStream ); + + FileLoader thread = new FileLoader(audioInputStream); + new Thread(thread).start(); + } + + class FileLoader implements Runnable { + AudioInputStream ais; + + FileLoader(AudioInputStream input) { + ais = input; + } + + public void run() { + try { + buf = new float[audioFormat.getChannels()][]; + + for (int i=0;ais.available() != 0;i++) { + //doc.content[i] = audioInputStream.read() / 65535; + } + + if ( callback != null ) + callback.messageReceived(this, FINISHED_READING, null); + } catch ( IOException e ) { + } + } + } + + public float getSampleRate() { + return sampleRate; + } + + public int getSampleSizeInBits() { + return sampleBitFormat; + } + + public boolean isBigEndian() { + return sampleBigEndian; + } + + public long getFrameLength() { + return sampleFrames; + } + + public int getChannels() { + return sampleChannels; + } + + public float getLengthMs() { + return buf[0].length / (sampleRate / 1000); + } + + private native int getSystemSampleRate(); +}
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