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+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * The origin of this IDL file is
+ * https://webaudio.github.io/web-audio-api/
+ *
+ * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
+ * liability, trademark and document use rules apply.
+ */
+
+[Pref="dom.webaudio.enabled"]
+interface AudioParam {
+
+ attribute float value;
+ readonly attribute float defaultValue;
+
+ // Parameter automation.
+ [Throws]
+ AudioParam setValueAtTime(float value, double startTime);
+ [Throws]
+ AudioParam linearRampToValueAtTime(float value, double endTime);
+ [Throws]
+ AudioParam exponentialRampToValueAtTime(float value, double endTime);
+
+ // Exponentially approach the target value with a rate having the given time constant.
+ [Throws]
+ AudioParam setTargetAtTime(float target, double startTime, double timeConstant);
+
+ // Sets an array of arbitrary parameter values starting at time for the given duration.
+ // The number of values will be scaled to fit into the desired duration.
+ [Throws]
+ AudioParam setValueCurveAtTime(Float32Array values, double startTime, double duration);
+
+ // Cancels all scheduled parameter changes with times greater than or equal to startTime.
+ [Throws]
+ AudioParam cancelScheduledValues(double startTime);
+
+};
+
+// Mozilla extension
+partial interface AudioParam {
+ // The ID of the AudioNode this AudioParam belongs to.
+ [ChromeOnly]
+ readonly attribute unsigned long parentNodeId;
+ // The name of the AudioParam
+ [ChromeOnly]
+ readonly attribute DOMString name;
+};