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1 /*
2  * Copyright (C) 2011 Ericsson AB. All rights reserved.
3  * Copyright (C) 2013 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 are
7  * met:
8  *
9  *     * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *     * Redistributions in binary form must reproduce the above
12  * copyright notice, this list of conditions and the following disclaimer
13  * in the documentation and/or other materials provided with the
14  * distribution.
15  *     * Neither the name of Google Inc. nor the names of its
16  * contributors may be used to endorse or promote products derived from
17  * this 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/MediaStreamDescriptor.h"
35 
36 #include "platform/UUID.h"
37 
38 namespace blink {
39 
create(const MediaStreamSourceVector & audioSources,const MediaStreamSourceVector & videoSources)40 PassRefPtr<MediaStreamDescriptor> MediaStreamDescriptor::create(const MediaStreamSourceVector& audioSources, const MediaStreamSourceVector& videoSources)
41 {
42     return adoptRef(new MediaStreamDescriptor(createCanonicalUUIDString(), audioSources, videoSources));
43 }
44 
create(const MediaStreamComponentVector & audioComponents,const MediaStreamComponentVector & videoComponents)45 PassRefPtr<MediaStreamDescriptor> MediaStreamDescriptor::create(const MediaStreamComponentVector& audioComponents, const MediaStreamComponentVector& videoComponents)
46 {
47     return adoptRef(new MediaStreamDescriptor(createCanonicalUUIDString(), audioComponents, videoComponents));
48 }
49 
create(const String & id,const MediaStreamComponentVector & audioComponents,const MediaStreamComponentVector & videoComponents)50 PassRefPtr<MediaStreamDescriptor> MediaStreamDescriptor::create(const String& id, const MediaStreamComponentVector& audioComponents, const MediaStreamComponentVector& videoComponents)
51 {
52     return adoptRef(new MediaStreamDescriptor(id, audioComponents, videoComponents));
53 }
54 
addComponent(PassRefPtr<MediaStreamComponent> component)55 void MediaStreamDescriptor::addComponent(PassRefPtr<MediaStreamComponent> component)
56 {
57     switch (component->source()->type()) {
58     case MediaStreamSource::TypeAudio:
59         if (m_audioComponents.find(component) == kNotFound)
60             m_audioComponents.append(component);
61         break;
62     case MediaStreamSource::TypeVideo:
63         if (m_videoComponents.find(component) == kNotFound)
64             m_videoComponents.append(component);
65         break;
66     }
67 }
68 
removeComponent(PassRefPtr<MediaStreamComponent> component)69 void MediaStreamDescriptor::removeComponent(PassRefPtr<MediaStreamComponent> component)
70 {
71     size_t pos = kNotFound;
72     switch (component->source()->type()) {
73     case MediaStreamSource::TypeAudio:
74         pos = m_audioComponents.find(component);
75         if (pos != kNotFound)
76             m_audioComponents.remove(pos);
77         break;
78     case MediaStreamSource::TypeVideo:
79         pos = m_videoComponents.find(component);
80         if (pos != kNotFound)
81             m_videoComponents.remove(pos);
82         break;
83     }
84 }
85 
addRemoteTrack(MediaStreamComponent * component)86 void MediaStreamDescriptor::addRemoteTrack(MediaStreamComponent* component)
87 {
88     if (m_client)
89         m_client->addRemoteTrack(component);
90     else
91         addComponent(component);
92 }
93 
removeRemoteTrack(MediaStreamComponent * component)94 void MediaStreamDescriptor::removeRemoteTrack(MediaStreamComponent* component)
95 {
96     if (m_client)
97         m_client->removeRemoteTrack(component);
98     else
99         removeComponent(component);
100 }
101 
MediaStreamDescriptor(const String & id,const MediaStreamSourceVector & audioSources,const MediaStreamSourceVector & videoSources)102 MediaStreamDescriptor::MediaStreamDescriptor(const String& id, const MediaStreamSourceVector& audioSources, const MediaStreamSourceVector& videoSources)
103     : m_client(0)
104     , m_id(id)
105     , m_ended(false)
106 {
107     ASSERT(m_id.length());
108     for (size_t i = 0; i < audioSources.size(); i++)
109         m_audioComponents.append(MediaStreamComponent::create(audioSources[i]));
110 
111     for (size_t i = 0; i < videoSources.size(); i++)
112         m_videoComponents.append(MediaStreamComponent::create(videoSources[i]));
113 }
114 
MediaStreamDescriptor(const String & id,const MediaStreamComponentVector & audioComponents,const MediaStreamComponentVector & videoComponents)115 MediaStreamDescriptor::MediaStreamDescriptor(const String& id, const MediaStreamComponentVector& audioComponents, const MediaStreamComponentVector& videoComponents)
116     : m_client(0)
117     , m_id(id)
118     , m_ended(false)
119 {
120     ASSERT(m_id.length());
121     for (MediaStreamComponentVector::const_iterator iter = audioComponents.begin(); iter != audioComponents.end(); ++iter)
122         m_audioComponents.append((*iter));
123     for (MediaStreamComponentVector::const_iterator iter = videoComponents.begin(); iter != videoComponents.end(); ++iter)
124         m_videoComponents.append((*iter));
125 }
126 
127 } // namespace blink
128 
129