1/* 2 * Copyright (C) 2010, Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25#ifndef DelayProcessor_h 26#define DelayProcessor_h 27 28#include "AudioDSPKernelProcessor.h" 29#include "AudioParam.h" 30#include <memory> 31#include <wtf/RefPtr.h> 32 33namespace WebCore { 34 35class AudioDSPKernel; 36 37class DelayProcessor : public AudioDSPKernelProcessor { 38public: 39 DelayProcessor(AudioContext*, float sampleRate, unsigned numberOfChannels, double maxDelayTime); 40 virtual ~DelayProcessor(); 41 42 virtual std::unique_ptr<AudioDSPKernel> createKernel() override; 43 44 AudioParam* delayTime() const { return m_delayTime.get(); } 45 46 double maxDelayTime() { return m_maxDelayTime; } 47private: 48 49 RefPtr<AudioParam> m_delayTime; 50 double m_maxDelayTime; 51}; 52 53} // namespace WebCore 54 55#endif // DelayProcessor_h 56