third_party/WebKit/Source/platform/mediastream/MediaStreamDescriptor.cpp

   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
  40 PassRefPtr<MediaStreamDescriptor> MediaStreamDescriptor::create(const MediaStreamSourceVector& audioSources, const MediaStreamSourceVector& videoSources)
  41 {
  42     return adoptRef(new MediaStreamDescriptor(createCanonicalUUIDString(), audioSources, videoSources));
  43 }
  44
  45 PassRefPtr<MediaStreamDescriptor> MediaStreamDescriptor::create(const MediaStreamComponentVector& audioComponents, const MediaStreamComponentVector& videoComponents)
  46 {
  47     return adoptRef(new MediaStreamDescriptor(createCanonicalUUIDString(), audioComponents, videoComponents));
  48 }
  49
  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
  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
  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
  86 void MediaStreamDescriptor::addRemoteTrack(MediaStreamComponent* component)
  87 {
  88     if (m_client)
  89         m_client->addRemoteTrack(component);
  90     else
  91         addComponent(component);
  92 }
  93
  94 void MediaStreamDescriptor::removeRemoteTrack(MediaStreamComponent* component)
  95 {
  96     if (m_client)
  97         m_client->removeRemoteTrack(component);
  98     else
  99         removeComponent(component);
 100 }
 101
 102 MediaStreamDescriptor::MediaStreamDescriptor(const String& id, const MediaStreamSourceVector& audioSources, const MediaStreamSourceVector& videoSources)
 103     : m_client(0)
 104     , m_id(id)
 105     , m_active(true)
 106     , m_ended(false)
 107 {
 108     ASSERT(m_id.length());
 109     for (size_t i = 0; i < audioSources.size(); i++)
 110         m_audioComponents.append(MediaStreamComponent::create(audioSources[i]));
 111
 112     for (size_t i = 0; i < videoSources.size(); i++)
 113         m_videoComponents.append(MediaStreamComponent::create(videoSources[i]));
 114 }
 115
 116 MediaStreamDescriptor::MediaStreamDescriptor(const String& id, const MediaStreamComponentVector& audioComponents, const MediaStreamComponentVector& videoComponents)
 117     : m_client(0)
 118     , m_id(id)
 119     , m_active(true)
 120     , m_ended(false)
 121 {
 122     ASSERT(m_id.length());
 123     for (MediaStreamComponentVector::const_iterator iter = audioComponents.begin(); iter != audioComponents.end(); ++iter)
 124         m_audioComponents.append((*iter));
 125     for (MediaStreamComponentVector::const_iterator iter = videoComponents.begin(); iter != videoComponents.end(); ++iter)
 126         m_videoComponents.append((*iter));
 127 }
 128
 129 } // namespace blink
 130