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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
[
WillBeGarbageCollected,
Conditional=WEB_AUDIO
] interface AudioParam {
attribute float value;
readonly attribute float minValue;
readonly attribute float maxValue;
readonly attribute float defaultValue;
readonly attribute DOMString name;
// FIXME: Could define units constants here (seconds, decibels, cents, etc.)...
readonly attribute unsigned short units;
// Parameter automation.
void setValueAtTime(float value, double time);
void linearRampToValueAtTime(float value, double time);
[RaisesException] void exponentialRampToValueAtTime(float value, double time);
// Exponentially approach the target with a rate having the given time constant.
void setTargetAtTime(float target, double time, 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.
void setValueCurveAtTime(Float32Array values, double time, double duration);
// Cancels all scheduled parameter changes with times greater than or equal to startTime.
void cancelScheduledValues(double startTime);
};
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