1/*
2 * Copyright (C) 2011 Ericsson AB. All rights reserved.
3 * Copyright (C) 2012 Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer
13 *    in the documentation and/or other materials provided with the
14 *    distribution.
15 * 3. Neither the name of Ericsson nor the names of its contributors
16 *    may be used to endorse or promote products derived from this
17 *    software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "config.h"
33
34#include "platform/mediastream/MediaStreamCenter.h"
35
36#include "platform/mediastream/MediaStreamDescriptor.h"
37#include "platform/mediastream/MediaStreamTrackSourcesRequest.h"
38#include "platform/mediastream/MediaStreamWebAudioSource.h"
39#include "public/platform/Platform.h"
40#include "public/platform/WebAudioSourceProvider.h"
41#include "public/platform/WebMediaStream.h"
42#include "public/platform/WebMediaStreamCenter.h"
43#include "public/platform/WebMediaStreamTrack.h"
44#include "public/platform/WebMediaStreamTrackSourcesRequest.h"
45#include "wtf/Assertions.h"
46#include "wtf/MainThread.h"
47#include "wtf/PassOwnPtr.h"
48
49namespace WebCore {
50
51MediaStreamCenter& MediaStreamCenter::instance()
52{
53    ASSERT(isMainThread());
54    DEFINE_STATIC_LOCAL(MediaStreamCenter, center, ());
55    return center;
56}
57
58MediaStreamCenter::MediaStreamCenter()
59    : m_private(adoptPtr(blink::Platform::current()->createMediaStreamCenter(this)))
60{
61}
62
63MediaStreamCenter::~MediaStreamCenter()
64{
65}
66
67bool MediaStreamCenter::getMediaStreamTrackSources(PassRefPtrWillBeRawPtr<MediaStreamTrackSourcesRequest> request)
68{
69    return m_private && m_private->getMediaStreamTrackSources(request);
70}
71
72void MediaStreamCenter::didSetMediaStreamTrackEnabled(MediaStreamComponent* component)
73{
74    if (m_private) {
75        if (component->enabled()) {
76            m_private->didEnableMediaStreamTrack(component);
77        } else {
78            m_private->didDisableMediaStreamTrack(component);
79        }
80    }
81}
82
83bool MediaStreamCenter::didAddMediaStreamTrack(MediaStreamDescriptor* stream, MediaStreamComponent* component)
84{
85    return m_private && m_private->didAddMediaStreamTrack(stream, component);
86}
87
88bool MediaStreamCenter::didRemoveMediaStreamTrack(MediaStreamDescriptor* stream, MediaStreamComponent* component)
89{
90    return m_private && m_private->didRemoveMediaStreamTrack(stream, component);
91}
92
93void MediaStreamCenter::didStopLocalMediaStream(MediaStreamDescriptor* stream)
94{
95    if (m_private)
96        m_private->didStopLocalMediaStream(stream);
97}
98
99bool MediaStreamCenter::didStopMediaStreamTrack(MediaStreamComponent* track)
100{
101    return m_private && m_private->didStopMediaStreamTrack(track);
102}
103
104void MediaStreamCenter::didCreateMediaStreamAndTracks(MediaStreamDescriptor* stream)
105{
106    if (!m_private)
107        return;
108
109    for (size_t i = 0; i < stream->numberOfAudioComponents(); ++i)
110        didCreateMediaStreamTrack(stream->audioComponent(i));
111
112    for (size_t i = 0; i < stream->numberOfVideoComponents(); ++i)
113        didCreateMediaStreamTrack(stream->videoComponent(i));
114
115    blink::WebMediaStream webStream(stream);
116    m_private->didCreateMediaStream(webStream);
117}
118
119void MediaStreamCenter::didCreateMediaStream(MediaStreamDescriptor* stream)
120{
121    if (m_private) {
122        blink::WebMediaStream WebMediaStream(stream);
123        m_private->didCreateMediaStream(WebMediaStream);
124    }
125}
126
127void MediaStreamCenter::didCreateMediaStreamTrack(MediaStreamComponent* track)
128{
129    if (m_private)
130        m_private->didCreateMediaStreamTrack(track);
131}
132
133PassOwnPtr<AudioSourceProvider> MediaStreamCenter::createWebAudioSourceFromMediaStreamTrack(MediaStreamComponent* track)
134{
135    ASSERT_UNUSED(track, track);
136#if ENABLE(WEB_AUDIO)
137    if (m_private)
138        return MediaStreamWebAudioSource::create(adoptPtr(m_private->createWebAudioSourceFromMediaStreamTrack(track)));
139#endif
140
141    return nullptr;
142}
143
144void MediaStreamCenter::stopLocalMediaStream(const blink::WebMediaStream& webStream)
145{
146    MediaStreamDescriptor* stream = webStream;
147    MediaStreamDescriptorClient* client = stream->client();
148    if (client)
149        client->streamEnded();
150    else
151        stream->setEnded();
152}
153
154} // namespace WebCore
155