1/*
2 * Copyright (C) 2011, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1.  Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2.  Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#ifndef DefaultAudioDestinationNode_h
26#define DefaultAudioDestinationNode_h
27
28#include "platform/audio/AudioDestination.h"
29#include "modules/webaudio/AudioDestinationNode.h"
30#include "wtf/OwnPtr.h"
31
32namespace blink {
33
34class AudioContext;
35class ExceptionState;
36
37class DefaultAudioDestinationNode FINAL : public AudioDestinationNode {
38public:
39    static DefaultAudioDestinationNode* create(AudioContext* context)
40    {
41        return adoptRefCountedGarbageCollectedWillBeNoop(new DefaultAudioDestinationNode(context));
42    }
43
44    virtual ~DefaultAudioDestinationNode();
45
46    // AudioNode
47    virtual void dispose() OVERRIDE;
48    virtual void initialize() OVERRIDE;
49    virtual void uninitialize() OVERRIDE;
50    virtual void setChannelCount(unsigned long, ExceptionState&) OVERRIDE;
51
52    // AudioDestinationNode
53    virtual void startRendering() OVERRIDE;
54    virtual unsigned long maxChannelCount() const OVERRIDE;
55
56private:
57    explicit DefaultAudioDestinationNode(AudioContext*);
58    void createDestination();
59
60    OwnPtr<AudioDestination> m_destination;
61    String m_inputDeviceId;
62    unsigned m_numberOfInputChannels;
63};
64
65} // namespace blink
66
67#endif // DefaultAudioDestinationNode_h
68