1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/webidl/AudioParam.webidl Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,39 @@
1.4 +/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.7 + * You can obtain one at http://mozilla.org/MPL/2.0/.
1.8 + *
1.9 + * The origin of this IDL file is
1.10 + * https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html
1.11 + *
1.12 + * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
1.13 + * liability, trademark and document use rules apply.
1.14 + */
1.15 +
1.16 +interface AudioParam {
1.17 +
1.18 + attribute float value;
1.19 + readonly attribute float defaultValue;
1.20 +
1.21 + // Parameter automation.
1.22 + [Throws]
1.23 + void setValueAtTime(float value, double startTime);
1.24 + [Throws]
1.25 + void linearRampToValueAtTime(float value, double endTime);
1.26 + [Throws]
1.27 + void exponentialRampToValueAtTime(float value, double endTime);
1.28 +
1.29 + // Exponentially approach the target value with a rate having the given time constant.
1.30 + [Throws]
1.31 + void setTargetAtTime(float target, double startTime, double timeConstant);
1.32 +
1.33 + // Sets an array of arbitrary parameter values starting at time for the given duration.
1.34 + // The number of values will be scaled to fit into the desired duration.
1.35 + [Throws]
1.36 + void setValueCurveAtTime(Float32Array values, double startTime, double duration);
1.37 +
1.38 + // Cancels all scheduled parameter changes with times greater than or equal to startTime.
1.39 + [Throws]
1.40 + void cancelScheduledValues(double startTime);
1.41 +
1.42 +};
