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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/media/media_stream.h"
#include "base/logging.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h"
namespace content {
// static
MediaStream* MediaStream::GetMediaStream(
const blink::WebMediaStream& stream) {
return static_cast<MediaStream*>(stream.extraData());
}
// static
webrtc::MediaStreamInterface* MediaStream::GetAdapter(
const blink::WebMediaStream& stream) {
MediaStream* native_stream = GetMediaStream(stream);
DCHECK(native_stream);
return native_stream->GetWebRtcAdapter(stream);
}
MediaStream::MediaStream(const blink::WebMediaStream& stream)
: is_local_(true),
webrtc_media_stream_(NULL) {
}
MediaStream::MediaStream(webrtc::MediaStreamInterface* webrtc_stream)
: is_local_(false),
webrtc_media_stream_(webrtc_stream) {
}
MediaStream::~MediaStream() {
DCHECK(observers_.empty());
}
webrtc::MediaStreamInterface* MediaStream::GetWebRtcAdapter(
const blink::WebMediaStream& stream) {
DCHECK(webrtc_media_stream_);
DCHECK(thread_checker_.CalledOnValidThread());
return webrtc_media_stream_.get();
}
void MediaStream::AddObserver(MediaStreamObserver* observer) {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK(std::find(observers_.begin(), observers_.end(), observer) ==
observers_.end());
observers_.push_back(observer);
}
void MediaStream::RemoveObserver(MediaStreamObserver* observer) {
DCHECK(thread_checker_.CalledOnValidThread());
std::vector<MediaStreamObserver*>::iterator it =
std::find(observers_.begin(), observers_.end(), observer);
DCHECK(it != observers_.end());
observers_.erase(it);
}
bool MediaStream::AddTrack(const blink::WebMediaStreamTrack& track) {
DCHECK(thread_checker_.CalledOnValidThread());
for (std::vector<MediaStreamObserver*>::iterator it = observers_.begin();
it != observers_.end(); ++it) {
(*it)->TrackAdded(track);
}
return true;
}
bool MediaStream::RemoveTrack(const blink::WebMediaStreamTrack& track) {
DCHECK(thread_checker_.CalledOnValidThread());
for (std::vector<MediaStreamObserver*>::iterator it = observers_.begin();
it != observers_.end(); ++it) {
(*it)->TrackRemoved(track);
}
return true;
}
} // namespace content
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