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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 THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_DESTINATION_NODE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_DESTINATION_NODE_H_
#include "media/base/output_device_info.h"
#include "third_party/blink/renderer/modules/webaudio/audio_destination_handler.h"
#include "third_party/blink/renderer/modules/webaudio/audio_node.h"
namespace blink {
class AudioDestinationHandler;
class BaseAudioContext;
// AudioDestinationNode (ADN) is a base class of two different types of nodes:
// 1. DefaultDestinationNode for AudioContext (real time)
// 2. OfflineDestinationNode for OfflineAudioContext (non-real time)
// They have different rendering mechanisms, so the AudioDestinationHandler
// (ADH), which is a counterpart of the destination node, encapsulates a
// different rendering backend.
class MODULES_EXPORT AudioDestinationNode : public AudioNode {
DEFINE_WRAPPERTYPEINFO();
public:
uint32_t maxChannelCount() const;
// Returns its own handler object instead of a generic one from
// AudioNode::Handler().
AudioDestinationHandler& GetAudioDestinationHandler() const;
// InspectorHelperMixin: Note that this node belongs to BaseAudioContext,
// so these methods are invoked by the parent context.
void ReportDidCreate() final;
void ReportWillBeDestroyed() final;
protected:
explicit AudioDestinationNode(BaseAudioContext&);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_DESTINATION_NODE_H_
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