author James Cheng <>
Fri, 05 Aug 2016 13:23:44 -0400
changeset 308428 8ee6f2eb8b349a351f6f76585eb85e0ec2b5c475
parent 303072 7b95036211d484cf6270b81c7fb18aa583470e7c
child 313035 2e3e036ccb2a7effc29409471e1b9e5101379910
permissions -rw-r--r--
Bug 1291229 - Fix typo for moving Java bindings to mozilla::java namespace. r=jchen MozReview-Commit-ID: KGAS6EhnwAI

/* -*- 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
 * The origin of this IDL file is
 * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
 * liability, trademark and document use rules apply.

interface AudioParam {

    attribute float value;
    readonly attribute float defaultValue;

    // Parameter automation. 
    AudioParam setValueAtTime(float value, double startTime);
    AudioParam linearRampToValueAtTime(float value, double endTime);
    AudioParam exponentialRampToValueAtTime(float value, double endTime);

    // Exponentially approach the target value with a rate having the given time constant. 
    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. 
    AudioParam setValueCurveAtTime(Float32Array values, double startTime, double duration);

    // Cancels all scheduled parameter changes with times greater than or equal to startTime. 
    AudioParam cancelScheduledValues(double startTime);


// Mozilla extension
partial interface AudioParam {
  // The ID of the AudioNode this AudioParam belongs to.
  readonly attribute unsigned long parentNodeId;
  // The name of the AudioParam
  readonly attribute DOMString name;