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51 lines
1.8 KiB
Plaintext
51 lines
1.8 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* The origin of this IDL file is
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* https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html
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*
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* Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
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* liability, trademark and document use rules apply.
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*/
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interface AudioParam {
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attribute float value;
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readonly attribute float defaultValue;
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// Parameter automation.
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[Throws]
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void setValueAtTime(float value, double startTime);
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[Throws]
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void linearRampToValueAtTime(float value, double endTime);
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[Throws]
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void exponentialRampToValueAtTime(float value, double endTime);
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// Exponentially approach the target value with a rate having the given time constant.
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[Throws]
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void setTargetAtTime(float target, double startTime, double timeConstant);
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// Sets an array of arbitrary parameter values starting at time for the given duration.
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// The number of values will be scaled to fit into the desired duration.
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[Throws]
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void setValueCurveAtTime(Float32Array values, double startTime, double duration);
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// Cancels all scheduled parameter changes with times greater than or equal to startTime.
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[Throws]
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void cancelScheduledValues(double startTime);
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};
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/*
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* The origin of this IDL file is
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* https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#AlternateNames
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*/
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partial interface AudioParam {
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// Same as setTargetAtTime()
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[Throws,Pref="media.webaudio.legacy.AudioParam"]
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void setTargetValueAtTime(float target, double startTime, double timeConstant);
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};
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