root/Source/platform/mediastream/MediaStreamCenter.cpp

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DEFINITIONS

This source file includes following definitions.
  1. instance
  2. getMediaStreamTrackSources
  3. didSetMediaStreamTrackEnabled
  4. didAddMediaStreamTrack
  5. didRemoveMediaStreamTrack
  6. didStopLocalMediaStream
  7. didStopMediaStreamTrack
  8. didCreateMediaStreamAndTracks
  9. didCreateMediaStream
  10. didCreateMediaStreamTrack
  11. createWebAudioSourceFromMediaStreamTrack
  12. stopLocalMediaStream

/*
 * Copyright (C) 2011 Ericsson AB. All rights reserved.
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer
 *    in the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name of Ericsson nor the names of its contributors
 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"

#include "platform/mediastream/MediaStreamCenter.h"

#include "platform/mediastream/MediaStreamDescriptor.h"
#include "platform/mediastream/MediaStreamTrackSourcesRequest.h"
#include "platform/mediastream/MediaStreamWebAudioSource.h"
#include "public/platform/Platform.h"
#include "public/platform/WebAudioSourceProvider.h"
#include "public/platform/WebMediaStream.h"
#include "public/platform/WebMediaStreamCenter.h"
#include "public/platform/WebMediaStreamTrack.h"
#include "public/platform/WebMediaStreamTrackSourcesRequest.h"
#include "wtf/Assertions.h"
#include "wtf/MainThread.h"
#include "wtf/PassOwnPtr.h"

namespace WebCore {

MediaStreamCenter& MediaStreamCenter::instance()
{
    ASSERT(isMainThread());
    DEFINE_STATIC_LOCAL(MediaStreamCenter, center, ());
    return center;
}

MediaStreamCenter::MediaStreamCenter()
    : m_private(adoptPtr(blink::Platform::current()->createMediaStreamCenter(this)))
{
}

MediaStreamCenter::~MediaStreamCenter()
{
}

bool MediaStreamCenter::getMediaStreamTrackSources(PassRefPtr<MediaStreamTrackSourcesRequest> request)
{
    return m_private && m_private->getMediaStreamTrackSources(request);
}

void MediaStreamCenter::didSetMediaStreamTrackEnabled(MediaStreamComponent* component)
{
    if (m_private) {
        if (component->enabled()) {
            m_private->didEnableMediaStreamTrack(component);
        } else {
            m_private->didDisableMediaStreamTrack(component);
        }
    }
}

bool MediaStreamCenter::didAddMediaStreamTrack(MediaStreamDescriptor* stream, MediaStreamComponent* component)
{
    return m_private && m_private->didAddMediaStreamTrack(stream, component);
}

bool MediaStreamCenter::didRemoveMediaStreamTrack(MediaStreamDescriptor* stream, MediaStreamComponent* component)
{
    return m_private && m_private->didRemoveMediaStreamTrack(stream, component);
}

void MediaStreamCenter::didStopLocalMediaStream(MediaStreamDescriptor* stream)
{
    if (m_private)
        m_private->didStopLocalMediaStream(stream);
}

bool MediaStreamCenter::didStopMediaStreamTrack(MediaStreamComponent* track)
{
    return m_private && m_private->didStopMediaStreamTrack(track);
}

void MediaStreamCenter::didCreateMediaStreamAndTracks(MediaStreamDescriptor* stream)
{
    if (!m_private)
        return;

    for (size_t i = 0; i < stream->numberOfAudioComponents(); ++i)
        didCreateMediaStreamTrack(stream->audioComponent(i));

    for (size_t i = 0; i < stream->numberOfVideoComponents(); ++i)
        didCreateMediaStreamTrack(stream->videoComponent(i));

    blink::WebMediaStream webStream(stream);
    m_private->didCreateMediaStream(webStream);
}

void MediaStreamCenter::didCreateMediaStream(MediaStreamDescriptor* stream)
{
    if (m_private) {
        blink::WebMediaStream WebMediaStream(stream);
        m_private->didCreateMediaStream(WebMediaStream);
    }
}

void MediaStreamCenter::didCreateMediaStreamTrack(MediaStreamComponent* track)
{
    if (m_private)
        m_private->didCreateMediaStreamTrack(track);
}

PassOwnPtr<AudioSourceProvider> MediaStreamCenter::createWebAudioSourceFromMediaStreamTrack(MediaStreamComponent* track)
{
    ASSERT_UNUSED(track, track);
#if ENABLE(WEB_AUDIO)
    if (m_private)
        return MediaStreamWebAudioSource::create(adoptPtr(m_private->createWebAudioSourceFromMediaStreamTrack(track)));
#endif

    return nullptr;
}

void MediaStreamCenter::stopLocalMediaStream(const blink::WebMediaStream& webStream)
{
    MediaStreamDescriptor* stream = webStream;
    MediaStreamDescriptorClient* client = stream->client();
    if (client)
        client->streamEnded();
    else
        stream->setEnded();
}

} // namespace WebCore

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