/* * Copyright (C) 2011, 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. */ #include "config.h" #if ENABLE(WEB_AUDIO) #include "DynamicsCompressorNode.h" #include "AudioContext.h" #include "AudioNodeInput.h" #include "AudioNodeOutput.h" #include "DynamicsCompressor.h" namespace WebCore { DynamicsCompressorNode::DynamicsCompressorNode(AudioContext* context, double sampleRate) : AudioNode(context, sampleRate) { addInput(adoptPtr(new AudioNodeInput(this))); addOutput(adoptPtr(new AudioNodeOutput(this, 2))); setType(NodeTypeDynamicsCompressor); initialize(); } DynamicsCompressorNode::~DynamicsCompressorNode() { uninitialize(); } void DynamicsCompressorNode::process(size_t framesToProcess) { AudioBus* outputBus = output(0)->bus(); ASSERT(outputBus); m_dynamicsCompressor->process(input(0)->bus(), outputBus, framesToProcess); } void DynamicsCompressorNode::reset() { m_dynamicsCompressor->reset(); } void DynamicsCompressorNode::initialize() { if (isInitialized()) return; AudioNode::initialize(); m_dynamicsCompressor = adoptPtr(new DynamicsCompressor(true, sampleRate())); } void DynamicsCompressorNode::uninitialize() { if (!isInitialized()) return; m_dynamicsCompressor.clear(); AudioNode::uninitialize(); } } // namespace WebCore #endif // ENABLE(WEB_AUDIO)