1/*
2 * Copyright (C) 2013 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
27#include "public/platform/WebMediaStream.h"
28
29#include "platform/UUID.h"
30#include "platform/mediastream/MediaStreamComponent.h"
31#include "platform/mediastream/MediaStreamDescriptor.h"
32#include "platform/mediastream/MediaStreamSource.h"
33#include "public/platform/WebMediaStreamSource.h"
34#include "public/platform/WebMediaStreamTrack.h"
35#include "public/platform/WebString.h"
36#include "wtf/OwnPtr.h"
37#include "wtf/PassOwnPtr.h"
38#include "wtf/Vector.h"
39
40namespace blink {
41
42namespace {
43
44class ExtraDataContainer : public MediaStreamDescriptor::ExtraData {
45public:
46    ExtraDataContainer(PassOwnPtr<WebMediaStream::ExtraData> extraData) : m_extraData(extraData) { }
47
48    WebMediaStream::ExtraData* extraData() { return m_extraData.get(); }
49
50private:
51    OwnPtr<WebMediaStream::ExtraData> m_extraData;
52};
53
54} // namespace
55
56WebMediaStream::WebMediaStream(const PassRefPtr<MediaStreamDescriptor>& mediaStreamDescriptor)
57    : m_private(mediaStreamDescriptor)
58{
59}
60
61WebMediaStream::WebMediaStream(MediaStreamDescriptor* mediaStreamDescriptor)
62    : m_private(mediaStreamDescriptor)
63{
64}
65
66void WebMediaStream::reset()
67{
68    m_private.reset();
69}
70
71WebString WebMediaStream::id() const
72{
73    return m_private->id();
74}
75
76WebMediaStream::ExtraData* WebMediaStream::extraData() const
77{
78    MediaStreamDescriptor::ExtraData* data = m_private->extraData();
79    if (!data)
80        return 0;
81    return static_cast<ExtraDataContainer*>(data)->extraData();
82}
83
84void WebMediaStream::setExtraData(ExtraData* extraData)
85{
86    m_private->setExtraData(adoptPtr(new ExtraDataContainer(adoptPtr(extraData))));
87}
88
89void WebMediaStream::audioTracks(WebVector<WebMediaStreamTrack>& webTracks) const
90{
91    size_t numberOfTracks = m_private->numberOfAudioComponents();
92    WebVector<WebMediaStreamTrack> result(numberOfTracks);
93    for (size_t i = 0; i < numberOfTracks; ++i)
94        result[i] = m_private->audioComponent(i);
95    webTracks.swap(result);
96}
97
98void WebMediaStream::videoTracks(WebVector<WebMediaStreamTrack>& webTracks) const
99{
100    size_t numberOfTracks = m_private->numberOfVideoComponents();
101    WebVector<WebMediaStreamTrack> result(numberOfTracks);
102    for (size_t i = 0; i < numberOfTracks; ++i)
103        result[i] = m_private->videoComponent(i);
104    webTracks.swap(result);
105}
106
107void WebMediaStream::addTrack(const WebMediaStreamTrack& track)
108{
109    ASSERT(!isNull());
110    m_private->addRemoteTrack(track);
111}
112
113void WebMediaStream::removeTrack(const WebMediaStreamTrack& track)
114{
115    ASSERT(!isNull());
116    m_private->removeRemoteTrack(track);
117}
118
119WebMediaStream& WebMediaStream::operator=(const PassRefPtr<MediaStreamDescriptor>& mediaStreamDescriptor)
120{
121    m_private = mediaStreamDescriptor;
122    return *this;
123}
124
125WebMediaStream::operator PassRefPtr<MediaStreamDescriptor>() const
126{
127    return m_private.get();
128}
129
130WebMediaStream::operator MediaStreamDescriptor*() const
131{
132    return m_private.get();
133}
134
135void WebMediaStream::initialize(const WebVector<WebMediaStreamTrack>& audioTracks, const WebVector<WebMediaStreamTrack>& videoTracks)
136{
137    initialize(createCanonicalUUIDString(), audioTracks, videoTracks);
138}
139
140void WebMediaStream::initialize(const WebString& label, const WebVector<WebMediaStreamTrack>& audioTracks, const WebVector<WebMediaStreamTrack>& videoTracks)
141{
142    MediaStreamComponentVector audio, video;
143    for (size_t i = 0; i < audioTracks.size(); ++i) {
144        MediaStreamComponent* component = audioTracks[i];
145        audio.append(component);
146    }
147    for (size_t i = 0; i < videoTracks.size(); ++i) {
148        MediaStreamComponent* component = videoTracks[i];
149        video.append(component);
150    }
151    m_private = MediaStreamDescriptor::create(label, audio, video);
152}
153
154void WebMediaStream::assign(const WebMediaStream& other)
155{
156    m_private = other.m_private;
157}
158
159} // namespace blink
160