1/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2/* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
4 * You can obtain one at http://mozilla.org/MPL/2.0/.
5 *
6 * The origin of this IDL file is
7 * https://webaudio.github.io/web-audio-api/
8 *
9 * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
10 * liability, trademark and document use rules apply.
11 */
12
13dictionary AnalyserOptions : AudioNodeOptions {
14             unsigned long fftSize = 2048;
15             double        maxDecibels = -30;
16             double        minDecibels = -100;
17             double        smoothingTimeConstant = 0.8;
18};
19
20[Pref="dom.webaudio.enabled",
21 Constructor(BaseAudioContext context, optional AnalyserOptions options)]
22interface AnalyserNode : AudioNode {
23
24    // Real-time frequency-domain data
25    void getFloatFrequencyData(Float32Array array);
26    void getByteFrequencyData(Uint8Array array);
27
28    // Real-time waveform data
29    void getFloatTimeDomainData(Float32Array array);
30    void getByteTimeDomainData(Uint8Array array);
31
32    [SetterThrows, Pure]
33    attribute unsigned long fftSize;
34    [Pure]
35    readonly attribute unsigned long frequencyBinCount;
36
37    [SetterThrows, Pure]
38    attribute double minDecibels;
39    [SetterThrows, Pure]
40    attribute double maxDecibels;
41
42    [SetterThrows, Pure]
43    attribute double smoothingTimeConstant;
44
45};
46