/*
 * Copyright (C) 2011, Google Inc. All rights reserved.
 * Copyright (C) 2016, Apple 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.
 */

[
    Conditional=WEB_AUDIO,
    ImplementedAs=BiquadFilterType
] enum BiquadFilterType {
    "lowpass",
    "highpass",
    "bandpass",
    "lowshelf",
    "highshelf",
    "peaking",
    "notch",
    "allpass"
};

[
    Conditional=WEB_AUDIO,
    JSGenerateToJSObject,
] interface BiquadFilterNode : AudioNode {
    attribute BiquadFilterType type;
    
    readonly attribute AudioParam frequency; // in Hertz
    readonly attribute AudioParam detune; // in Cents
    readonly attribute AudioParam Q; // Quality factor
    readonly attribute AudioParam gain; // in Decibels

    // FIXME: the parameters should not be nullable.
    void getFrequencyResponse(Float32Array? frequencyHz, Float32Array? magResponse, Float32Array? phaseResponse);
};