51 lines
2.4 KiB
Plaintext
51 lines
2.4 KiB
Plaintext
/*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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.
|
|
*/
|
|
|
|
[
|
|
Conditional=WEB_AUDIO,
|
|
JSGenerateToJSObject,
|
|
Exposed=Window
|
|
] interface AnalyserNode : AudioNode {
|
|
[EnabledBySetting=WebAudio] constructor (BaseAudioContext context, optional AnalyserOptions options);
|
|
|
|
attribute unsigned long fftSize;
|
|
readonly attribute unsigned long frequencyBinCount;
|
|
|
|
// minDecibels / maxDecibels represent the range to scale the FFT analysis data for conversion to unsigned byte values.
|
|
attribute double minDecibels;
|
|
attribute double maxDecibels;
|
|
|
|
// A value from 0.0 -> 1.0 where 0.0 represents no time averaging with the last analysis frame.
|
|
attribute double smoothingTimeConstant;
|
|
|
|
// Copies the current frequency data into the passed array.
|
|
// If the array has fewer elements than the frequencyBinCount, the excess elements will be dropped.
|
|
undefined getFloatFrequencyData(Float32Array array);
|
|
undefined getByteFrequencyData(Uint8Array array);
|
|
|
|
// Real-time waveform data
|
|
undefined getFloatTimeDomainData(Float32Array array);
|
|
undefined getByteTimeDomainData(Uint8Array array);
|
|
};
|