/* * 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, ] interface AnalyserNode : AudioNode { [SetterMayThrowException] 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. [SetterMayThrowException] attribute unrestricted double minDecibels; [SetterMayThrowException] attribute unrestricted double maxDecibels; // A value from 0.0 -> 1.0 where 0.0 represents no time averaging with the last analysis frame. [SetterMayThrowException] attribute unrestricted 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. void getFloatFrequencyData(Float32Array? array); // FIXME: The parameter should not be nullable. void getByteFrequencyData(Uint8Array? array); // FIXME: The parameter should not be nullable. // Real-time waveform data void getByteTimeDomainData(Uint8Array? array); // FIXME: The parameter should not be nullable. };