1/*
2 * Copyright (C) 2012, 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#include "config.h"
26#include "MediaStreamAudioDestinationNode.h"
27
28#if ENABLE(WEB_AUDIO) && ENABLE(MEDIA_STREAM)
29
30#include "AudioContext.h"
31#include "AudioNodeInput.h"
32#include "Document.h"
33#include "MediaStream.h"
34#include "MediaStreamAudioSource.h"
35#include <wtf/IsoMallocInlines.h>
36#include <wtf/Locker.h>
37
38namespace WebCore {
39
40WTF_MAKE_ISO_ALLOCATED_IMPL(MediaStreamAudioDestinationNode);
41
42Ref<MediaStreamAudioDestinationNode> MediaStreamAudioDestinationNode::create(AudioContext& context, size_t numberOfChannels)
43{
44 return adoptRef(*new MediaStreamAudioDestinationNode(context, numberOfChannels));
45}
46
47MediaStreamAudioDestinationNode::MediaStreamAudioDestinationNode(AudioContext& context, size_t numberOfChannels)
48 : AudioBasicInspectorNode(context, context.sampleRate(), numberOfChannels)
49 , m_source(MediaStreamAudioSource::create(context.sampleRate()))
50 , m_stream(MediaStream::create(*context.document(), MediaStreamPrivate::create(m_source.copyRef())))
51{
52 setNodeType(NodeTypeMediaStreamAudioDestination);
53 initialize();
54}
55
56MediaStreamAudioDestinationNode::~MediaStreamAudioDestinationNode()
57{
58 uninitialize();
59}
60
61void MediaStreamAudioDestinationNode::process(size_t numberOfFrames)
62{
63 m_source->consumeAudio(*input(0)->bus(), numberOfFrames);
64}
65
66void MediaStreamAudioDestinationNode::reset()
67{
68}
69
70} // namespace WebCore
71
72#endif // ENABLE(WEB_AUDIO) && ENABLE(MEDIA_STREAM)
73