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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 
     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_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 
    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