/*
* 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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
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*/
#ifndef ChannelMergerNode_h
#define ChannelMergerNode_h
#include "modules/webaudio/AudioNode.h"
#include "wtf/PassRefPtr.h"
namespace WebCore {
class AudioContext;
class ChannelMergerNode FINAL : public AudioNode {
public:
static PassRefPtr<ChannelMergerNode> create(AudioContext*, float sampleRate, unsigned numberOfInputs);
// AudioNode
virtual void process(size_t framesToProcess) OVERRIDE;
// Called in the audio thread (pre-rendering task) when the number of channels for an input may have changed.
virtual void checkNumberOfChannelsForInput(AudioNodeInput*) OVERRIDE;
private:
unsigned m_desiredNumberOfOutputChannels;
virtual double tailTime() const OVERRIDE { return 0; }
virtual double latencyTime() const OVERRIDE { return 0; }
ChannelMergerNode(AudioContext*, float sampleRate, unsigned numberOfInputs);
};
} // namespace WebCore
#endif // ChannelMergerNode_h