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// Copyright (c) 2012 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/peer_connection_handler_base.h"
#include "base/logging.h"
#include "base/utf_string_conversions.h"
#include "content/renderer/media/media_stream_dependency_factory.h"
#include "content/renderer/media/media_stream_extra_data.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStream.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStreamSource.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStreamTrack.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebString.h"
namespace content {
// TODO(hta): Unify implementations of these functions from MediaStreamCenter
static webrtc::MediaStreamInterface* GetNativeMediaStream(
const WebKit::WebMediaStream& stream) {
MediaStreamExtraData* extra_data =
static_cast<MediaStreamExtraData*>(stream.extraData());
if (extra_data)
return extra_data->stream();
return NULL;
}
PeerConnectionHandlerBase::PeerConnectionHandlerBase(
MediaStreamDependencyFactory* dependency_factory)
: dependency_factory_(dependency_factory),
message_loop_proxy_(base::MessageLoopProxy::current()) {
}
PeerConnectionHandlerBase::~PeerConnectionHandlerBase() {
}
bool PeerConnectionHandlerBase::AddStream(
const WebKit::WebMediaStream& stream,
const webrtc::MediaConstraintsInterface* constraints) {
webrtc::MediaStreamInterface* native_stream = GetNativeMediaStream(stream);
if (!native_stream)
return false;
return native_peer_connection_->AddStream(native_stream, constraints);
}
void PeerConnectionHandlerBase::RemoveStream(
const WebKit::WebMediaStream& stream) {
webrtc::MediaStreamInterface* native_stream = GetNativeMediaStream(stream);
if (native_stream)
native_peer_connection_->RemoveStream(native_stream);
DCHECK(native_stream);
}
webrtc::MediaStreamTrackInterface*
PeerConnectionHandlerBase::GetNativeMediaStreamTrack(
const WebKit::WebMediaStream& stream,
const WebKit::WebMediaStreamTrack& track) {
std::string track_id = UTF16ToUTF8(track.id());
webrtc::MediaStreamInterface* native_stream = GetNativeMediaStream(stream);
if (!native_stream) {
return NULL;
}
if (track.source().type() == WebKit::WebMediaStreamSource::TypeAudio) {
return native_stream->FindAudioTrack(track_id);
}
if (track.source().type() == WebKit::WebMediaStreamSource::TypeVideo) {
return native_stream->FindVideoTrack(track_id);
}
NOTIMPLEMENTED(); // We have an unknown type of media stream track.
return NULL;
}
} // namespace content
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