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package tsukuba_bunko.peko.canvas.stage.audio; |
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import java.io.IOException; |
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import java.net.URL; |
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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.AudioSystem; |
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import javax.sound.sampled.DataLine; |
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import javax.sound.sampled.FloatControl; |
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import javax.sound.sampled.LineUnavailableException; |
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import javax.sound.sampled.SourceDataLine; |
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import javax.sound.sampled.UnsupportedAudioFileException; |
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import tsukuba_bunko.peko.Logger; |
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import tsukuba_bunko.peko.canvas.stage.AudioClip; |
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import tsukuba_bunko.peko.canvas.stage.AudioPlayer; |
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public class SampledAudioClip extends AudioClip { |
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private AudioFormat _outputFormat = null; |
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private AudioInputStream _inputStream = null; |
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private AudioInputStream _baseInputStream = null; |
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private SourceDataLine _line = null; |
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private FloatControl _masterGainControl = null; |
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private Thread _workThread = null; |
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private boolean _running = false; |
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public SampledAudioClip( String id, URL clipURL ) |
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{ |
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super( id, clipURL ); |
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} |
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public void play() |
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{ |
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if( _inputStream != null ) { |
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return; |
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} |
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try { |
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setSoundFile( getClipURL() ); |
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} |
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catch( UnsupportedAudioFileException uafe ) { |
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Logger.warn( "unsupported sound format.", uafe ); |
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} |
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catch( LineUnavailableException lue ) { |
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Logger.warn( "source dataLine is not available.", lue ); |
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} |
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catch( IOException ioe ) { |
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Logger.warn( "fail to load sound file.", ioe ); |
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} |
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_workThread = new Thread() { |
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public void run() |
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{ |
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try { |
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AudioInputStream is = _inputStream; |
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SourceDataLine line = _line; |
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byte[] buffer = new byte[ 8192 ]; |
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line.start(); |
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int readSize = 0; |
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while( _running ) { |
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readSize = is.read( buffer, 0, buffer.length ); |
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if( _running ) { |
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if( readSize != -1 ) { |
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line.write( buffer, 0, readSize ); |
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} |
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else if( isLoop() ) { |
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closeInput(); |
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prepareInput(); |
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is = _inputStream; |
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} |
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else { |
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line.drain(); |
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if( _running ) { |
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synchronized( SampledAudioClip.this ) { |
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if( _running ) { |
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playingFinished(); |
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} |
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} |
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} |
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break; |
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} |
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} |
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} |
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} |
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catch( UnsupportedAudioFileException uafe ) { |
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Logger.warn( "unsupported sound format.", uafe ); |
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} |
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catch( IOException ioe ) { |
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Logger.warn( "fail to load sound file.", ioe ); |
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} |
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finally { |
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closeInput(); |
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} |
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synchronized( SampledAudioClip.this ) { |
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_workThread = null; |
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SampledAudioClip.this.notify(); |
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} |
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} |
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}; |
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_running = true; |
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_workThread.start(); |
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} |
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public void stop( int mode ) |
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{ |
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if( _workThread != null ) { |
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synchronized( this ) { |
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if( _workThread != null ) { |
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playingFinished(); |
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if( mode == AudioPlayer.STOP_WITH_ASYNC_FADEOUT ) { |
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new Thread() { |
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public void run() { |
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fadeout(); |
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_running = false; |
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} |
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}.start(); |
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} |
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else { |
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if( mode == AudioPlayer.STOP_WITH_SYNC_FADEOUT ) { |
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fadeout(); |
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} |
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try { |
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_running = false; |
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SampledAudioClip.this.wait(); |
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} |
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catch( InterruptedException e ) { |
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} |
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} |
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} |
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_workThread = null; |
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} |
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} |
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} |
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public void dispose() |
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{ |
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stop( AudioPlayer.STOP_IMMEDIATELY ); |
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if( _line != null ) { |
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_line.stop(); |
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_line.close(); |
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} |
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_line = null; |
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_masterGainControl = null; |
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} |
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public void setVolume( float level ) |
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{ |
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if( _masterGainControl != null ) { |
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float decibel; |
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if( level < 0.02f ) { |
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decibel = _masterGainControl.getMinimum(); |
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} |
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else { |
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decibel = (float)Math.log( (double)level ) * 20.0f; |
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} |
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_masterGainControl.setValue( decibel ); |
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} |
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} |
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public float getVolume() |
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{ |
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if( _masterGainControl == null ) { |
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return -1f; |
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} |
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else { |
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float decibel = _masterGainControl.getValue(); |
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return (float)Math.pow( 10, (decibel / 20.0f) ); |
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} |
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} |
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private void setSoundFile( URL clipURL ) |
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throws UnsupportedAudioFileException, LineUnavailableException, IOException |
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{ |
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prepareInput(); |
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DataLine.Info info = new DataLine.Info( SourceDataLine.class, _outputFormat ); |
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SourceDataLine line = (SourceDataLine)AudioSystem.getLine( info ); |
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line.open( _outputFormat ); |
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_line = line; |
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try { |
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_masterGainControl = (FloatControl)line.getControl( FloatControl.Type.MASTER_GAIN ); |
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} |
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catch( IllegalArgumentException iae ) { |
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Logger.warn( "Master Gain Control is not supported.", iae ); |
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} |
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} |
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private void prepareInput() |
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throws UnsupportedAudioFileException, IOException |
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{ |
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AudioInputStream baseInputStream = AudioSystem.getAudioInputStream( getClipURL() ); |
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AudioFormat baseFormat = baseInputStream.getFormat(); |
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AudioFormat.Encoding baseEncoding = baseFormat.getEncoding(); |
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Logger.debug( "file=" + getClipURL() + " fomart=" + baseFormat + " encoding=" + baseEncoding + "[" + baseEncoding.getClass() + "]" ); |
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if( AudioFormat.Encoding.class.equals(baseEncoding.getClass()) ) { |
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_outputFormat = baseFormat; |
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_inputStream = baseInputStream; |
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_baseInputStream = null; |
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} |
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else { |
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_outputFormat = new AudioFormat( AudioFormat.Encoding.PCM_SIGNED, baseFormat.getSampleRate(), 16, baseFormat.getChannels(), |
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baseFormat.getChannels() * 2, baseFormat.getSampleRate(), false ); |
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Logger.debug( "decoded: " + _outputFormat ); |
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_inputStream = AudioSystem.getAudioInputStream( _outputFormat, baseInputStream ); |
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_baseInputStream = baseInputStream; |
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} |
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} |
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private void closeInput() |
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{ |
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if( _inputStream != null ) { |
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try { |
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_inputStream.close(); |
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} |
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catch( IOException ioe ) { |
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} |
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} |
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if( _baseInputStream != null ) { |
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try { |
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_baseInputStream.close(); |
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} |
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catch( IOException ioe ) { |
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} |
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} |
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_inputStream = null; |
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_baseInputStream = null; |
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_outputFormat = null; |
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} |
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private void fadeout() |
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{ |
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synchronized( SampledAudioClip.this ) { |
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if( _masterGainControl != null ) { |
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float level = getVolume(); |
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for( ; level > 0.03f; level = level * 0.97f ) { |
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try { |
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SampledAudioClip.this.wait( 2L ); |
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} |
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catch( InterruptedException ie ) { |
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} |
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setVolume( level ); |
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} |
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_masterGainControl.setValue( _masterGainControl.getMinimum() ); |
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} |
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} |
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} |
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} |