/*
 * Copyright (C) 2011, Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1.  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

module audio {
    interface [
        Conditional=WEB_AUDIO,
        JSGenerateToJSObject
    ] BiquadFilterNode : AudioNode {
        // Filter type.
        const unsigned short LOWPASS = 0;
        const unsigned short HIGHPASS = 1;
        const unsigned short BANDPASS = 2;
        const unsigned short LOWSHELF = 3;
        const unsigned short HIGHSHELF = 4;
        const unsigned short PEAKING = 5;
        const unsigned short NOTCH = 6;
        const unsigned short ALLPASS = 7;

        attribute unsigned short type
            setter raises(DOMException);
        
        readonly attribute AudioParam frequency; // in Hertz
        readonly attribute AudioParam Q; // Quality factor
        readonly attribute AudioParam gain; // in Decibels

        void getFrequencyResponse(in Float32Array frequencyHz,
                                  in Float32Array magResponse,
                                  in Float32Array phaseResponse);
    };
}