root/public/platform/WebAudioDevice.h

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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
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 *
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 *     notice, this list of conditions and the following disclaimer.
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 *     from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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#ifndef WebAudioDevice_h
#define WebAudioDevice_h

#include "WebCommon.h"
#include "WebVector.h"

namespace blink {

// Abstract interface to the Chromium audio system.

class WebAudioDevice {
public:
    class BLINK_PLATFORM_EXPORT RenderCallback {
    public:
        virtual void render(const WebVector<float*>& sourceData, const WebVector<float*>& destinationData, size_t numberOfFrames);

    protected:
        virtual ~RenderCallback();
    };

    virtual ~WebAudioDevice() { }

    virtual void start() = 0;
    virtual void stop() = 0;
    virtual double sampleRate() = 0;
};

} // namespace blink

#endif // WebAudioDevice_h

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