/*
 * 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
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 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 */

// See https://webaudio.github.io/web-audio-api/#the-biquadfilternode-interface
enum BiquadFilterType {
    "lowpass",
    "highpass",
    "bandpass",
    "lowshelf",
    "highshelf",
    "peaking",
    "notch",
    "allpass"
};

[
    Constructor(BaseAudioContext context, optional BiquadFilterOptions options),
    RaisesException=Constructor,
    Measure
]
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

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