Example usage for javax.sound.sampled Clip open

Introduction

In this page you can find the example usage for javax.sound.sampled Clip open.

Prototype

void open(AudioFormat format, byte[] data, int offset, int bufferSize) throws LineUnavailableException;

Source Link

Document

Opens the clip, meaning that it should acquire any required system resources and become operational.

Usage

From source file:fr.ritaly.dungeonmaster.audio.SoundSystem.java

private void play(final double angle, final double distance, final AudioClip clip) {

    if (clip == null) {
        throw new IllegalArgumentException("The given audio clip is null");
    }/*from   ww  w. j  av a2  s.  c  om*/
    if (!isInitialized()) {
        // On ne lve pas d'erreur pour les tests unitaires
        return;
    }

    if (log.isDebugEnabled()) {
        log.debug("Submitting new task ...");
    }

    executorService.execute(new Runnable() {
        @Override
        public void run() {
            final Sound sound = sounds.get(clip.getSound());

            if (sound == null) {
                throw new IllegalArgumentException("Unsupported sound <" + clip + ">");
            }

            try {
                final Clip clip2 = (Clip) AudioSystem
                        .getLine(new DataLine.Info(Clip.class, sound.getAudioFormat()));

                clip2.addLineListener(new LineListener() {
                    @Override
                    public void update(LineEvent event) {
                        if (event.getType().equals(LineEvent.Type.STOP)) {
                            clip2.close();
                        }
                    }
                });
                clip2.open(sound.getAudioFormat(), sound.getData(), 0, sound.getData().length);

                final DecimalFormat decimalFormat = new DecimalFormat("###.#");

                // Pan dans [-1, +1]
                final FloatControl pan = (FloatControl) clip2.getControl(FloatControl.Type.PAN);

                if (!Double.isNaN(angle)) {

                    final float p = (float) Math.sin(angle);

                    if ((0 <= angle) && (angle <= Math.PI)) {
                        // Son sur la gauche, pan positif
                        pan.setValue(p);
                    } else {
                        // Son sur la droite, pan ngatif
                        pan.setValue(p);
                    }

                    if (log.isDebugEnabled()) {
                        log.debug("Angle = " + decimalFormat.format((angle / Math.PI) * 180) + " / Pan = "
                                + decimalFormat.format(p * 100));
                    }
                } else {
                    pan.setValue(0);
                }

                final double attenuation = Utils.attenuation(distance);

                if (log.isDebugEnabled()) {
                    log.debug("Distance = " + distance + " / Attenuation = "
                            + decimalFormat.format((attenuation * 100)) + "%");
                }

                if (distance != 0) {
                    // Gain dans [-30, 0]
                    final FloatControl gain = (FloatControl) clip2.getControl(FloatControl.Type.MASTER_GAIN);

                    gain.setValue((float) attenuation * -30);
                }

                clip2.loop(0);
            } catch (LineUnavailableException e) {
                throw new RuntimeException(e);
            }
        }
    });

    if (log.isDebugEnabled()) {
        log.debug("Task submitted");
    }
}

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