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/*
* 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.
*/
#ifndef AudioBasicProcessorHandler_h
#define AudioBasicProcessorHandler_h
#include "modules/ModulesExport.h"
#include "modules/webaudio/AudioNode.h"
#include "wtf/Forward.h"
#if ENABLE(WEB_AUDIO)
namespace blink {
class AudioNodeInput;
class AudioProcessor;
// AudioBasicProcessorHandler is an AudioHandler with one input and one output
// where the input and output have the same number of channels.
class MODULES_EXPORT AudioBasicProcessorHandler : public AudioHandler {
public:
static PassRefPtr<AudioBasicProcessorHandler> create(NodeType, AudioNode&, float sampleRate, PassOwnPtr<AudioProcessor>);
~AudioBasicProcessorHandler() override;
// AudioHandler
void process(size_t framesToProcess) final;
void pullInputs(size_t framesToProcess) final;
void initialize() final;
void uninitialize() final;
// Called in the main thread when the number of channels for the input may have changed.
void checkNumberOfChannelsForInput(AudioNodeInput*) final;
// Returns the number of channels for both the input and the output.
unsigned numberOfChannels();
AudioProcessor* processor() { return m_processor.get(); }
private:
AudioBasicProcessorHandler(NodeType, AudioNode&, float sampleRate, PassOwnPtr<AudioProcessor>);
double tailTime() const final;
double latencyTime() const final;
OwnPtr<AudioProcessor> m_processor;
};
} // namespace blink
#endif // ENABLE(WEB_AUDIO)
#endif // AudioBasicProcessorHandler_h
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