15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2010 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#if ENABLE(WEB_AUDIO) 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "modules/webaudio/AudioParam.h" 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 321e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles)#include "platform/audio/AudioUtilities.h" 3353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "modules/webaudio/AudioNode.h" 3453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "modules/webaudio/AudioNodeOutput.h" 351e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles)#include "platform/FloatConversion.h" 3653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "wtf/MathExtras.h" 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 38c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)const double AudioParam::DefaultSmoothingConstant = 0.05; 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)const double AudioParam::SnapThreshold = 0.001; 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)float AudioParam::value() 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Update value for timeline. 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (context() && context()->isAudioThread()) { 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool hasValue; 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float timelineValue = m_timeline.valueForContextTime(context(), narrowPrecisionToFloat(m_value), hasValue); 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (hasValue) 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_value = timelineValue; 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return narrowPrecisionToFloat(m_value); 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void AudioParam::setValue(float value) 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Check against JavaScript giving us bogus floating-point values. 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Don't ASSERT, since this can happen if somebody writes bad JS. 61926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) if (!std::isnan(value) && !std::isinf(value)) 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_value = value; 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)float AudioParam::smoothedValue() 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return narrowPrecisionToFloat(m_smoothedValue); 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool AudioParam::smooth() 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // If values have been explicitly scheduled on the timeline, then use the exact value. 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Smoothing effectively is performed by the timeline. 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool useTimelineValue = false; 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (context()) 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_value = m_timeline.valueForContextTime(context(), narrowPrecisionToFloat(m_value), useTimelineValue); 7702772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_smoothedValue == m_value) { 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Smoothed value has already approached and snapped to value. 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return true; 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 8202772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (useTimelineValue) 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_smoothedValue = m_value; 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else { 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Dezipper - exponential approach. 8709380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) m_smoothedValue += (m_value - m_smoothedValue) * DefaultSmoothingConstant; 885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // If we get close enough then snap to actual value. 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (fabs(m_smoothedValue - m_value) < SnapThreshold) // FIXME: the threshold needs to be adjustable depending on range - but this is OK general purpose value. 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_smoothedValue = m_value; 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return false; 955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)float AudioParam::finalValue() 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 99197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch float value = m_value; 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) calculateFinalValues(&value, 1, false); 1015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return value; 1025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void AudioParam::calculateSampleAccurateValues(float* values, unsigned numberOfValues) 1055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool isSafe = context() && context()->isAudioThread() && values && numberOfValues; 1075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(isSafe); 1085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!isSafe) 1095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) calculateFinalValues(values, numberOfValues, true); 1125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void AudioParam::calculateFinalValues(float* values, unsigned numberOfValues, bool sampleAccurate) 1155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool isGood = context() && context()->isAudioThread() && values && numberOfValues; 1175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(isGood); 1185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!isGood) 1195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 1205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // The calculated result will be the "intrinsic" value summed with all audio-rate connections. 1225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (sampleAccurate) { 1245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Calculate sample-accurate (a-rate) intrinsic values. 1255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) calculateTimelineValues(values, numberOfValues); 1265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } else { 1275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Calculate control-rate (k-rate) intrinsic value. 1285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool hasValue; 1295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float timelineValue = m_timeline.valueForContextTime(context(), narrowPrecisionToFloat(m_value), hasValue); 1305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (hasValue) 1325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_value = timelineValue; 1335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) values[0] = narrowPrecisionToFloat(m_value); 1355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Now sum all of the audio-rate connections together (unity-gain summing junction). 1385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Note that connections would normally be mono, but we mix down to mono if necessary. 13981a5157921f1d2a7ff6aae115bfe3c139b38a5c8Torne (Richard Coles) RefPtr<AudioBus> summingBus = AudioBus::create(1, numberOfValues, false); 14081a5157921f1d2a7ff6aae115bfe3c139b38a5c8Torne (Richard Coles) summingBus->setChannelMemory(0, values, numberOfValues); 1415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (unsigned i = 0; i < numberOfRenderingConnections(); ++i) { 1435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) AudioNodeOutput* output = renderingOutput(i); 1445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(output); 1455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Render audio from this output. 1475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) AudioBus* connectionBus = output->pull(0, AudioNode::ProcessingSizeInFrames); 1485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Sum, with unity-gain. 15081a5157921f1d2a7ff6aae115bfe3c139b38a5c8Torne (Richard Coles) summingBus->sumFrom(*connectionBus); 1515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void AudioParam::calculateTimelineValues(float* values, unsigned numberOfValues) 1555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Calculate values for this render quantum. 1575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Normally numberOfValues will equal AudioNode::ProcessingSizeInFrames (the render quantum size). 1585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) double sampleRate = context()->sampleRate(); 1595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) double startTime = context()->currentTime(); 1605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) double endTime = startTime + numberOfValues / sampleRate; 1615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Note we're running control rate at the sample-rate. 1635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Pass in the current value as default value. 1645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_value = m_timeline.valuesForTimeRange(startTime, endTime, narrowPrecisionToFloat(m_value), values, numberOfValues, sampleRate, sampleRate); 1655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 167197021e6b966cfb06891637935ef33fff06433d1Ben Murdochvoid AudioParam::connect(AudioNodeOutput& output) 1685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(context()->isGraphOwner()); 1705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 171197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch if (m_outputs.contains(&output)) 1725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 1735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 174197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch output.addParam(*this); 175197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch m_outputs.add(&output); 1765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) changedOutputs(); 1775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 179197021e6b966cfb06891637935ef33fff06433d1Ben Murdochvoid AudioParam::disconnect(AudioNodeOutput& output) 1805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(context()->isGraphOwner()); 1825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 183197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch if (m_outputs.contains(&output)) { 184197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch m_outputs.remove(&output); 1855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) changedOutputs(); 186197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch output.removeParam(*this); 1875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 190c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 1915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif // ENABLE(WEB_AUDIO) 193