ExtendedClip.java 文件源码

final public float getVolume(int intPvolumePercentage) throws Throwable {

        if (this.objGclip != null && this.objGclip.isControlSupported(FloatControl.Type.MASTER_GAIN)) {
            final FloatControl objLvolumeFloatControl = (FloatControl) this.objGclip.getControl(FloatControl.Type.MASTER_GAIN);
            final float fltLrange = (objLvolumeFloatControl.getMaximum() - objLvolumeFloatControl.getMinimum()) * 1.2F;
            return Math.min(fltLrange * Math.max(0, intPvolumePercentage) / 100.0F + objLvolumeFloatControl.getMinimum(),
                            objLvolumeFloatControl.getMaximum());
        }
        throw new Throwable();
    }