/*
* 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
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*/
#ifndef AudioSourceProvider_h
#define AudioSourceProvider_h
#include "platform/PlatformExport.h"
namespace WebCore {
class AudioBus;
class AudioSourceProviderClient;
// Abstract base-class for a pull-model client.
class PLATFORM_EXPORT AudioSourceProvider {
public:
// provideInput() gets called repeatedly to render time-slices of a continuous audio stream.
virtual void provideInput(AudioBus* bus, size_t framesToProcess) = 0;
// If a client is set, we call it back when the audio format is available or changes.
virtual void setClient(AudioSourceProviderClient*) { };
virtual ~AudioSourceProvider() { }
};
} // WebCore
#endif // AudioSourceProvider_h