gecko/content/media/DOMMediaStream.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "DOMMediaStream.h"
#include "nsDOMClassInfoID.h"
#include "nsContentUtils.h"
#include "mozilla/dom/MediaStreamBinding.h"
#include "mozilla/dom/LocalMediaStreamBinding.h"
#include "MediaStreamGraph.h"
using namespace mozilla;
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMMediaStream)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_ENTRY(nsIDOMMediaStream)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMMediaStream)
NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMMediaStream)
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(DOMMediaStream, mWindow)
NS_IMPL_ISUPPORTS_INHERITED1(DOMLocalMediaStream, DOMMediaStream,
nsIDOMLocalMediaStream)
DOMMediaStream::~DOMMediaStream()
{
if (mStream) {
mStream->Destroy();
}
}
JSObject*
DOMMediaStream::WrapObject(JSContext* aCx, JSObject* aScope)
{
return dom::MediaStreamBinding::Wrap(aCx, aScope, this);
}
double
DOMMediaStream::CurrentTime()
{
return mStream ? MediaTimeToSeconds(mStream->GetCurrentTime()) : 0.0;
}
bool
DOMMediaStream::IsFinished()
{
return !mStream || mStream->IsFinished();
}
void
DOMMediaStream::InitSourceStream(nsIDOMWindow* aWindow, uint32_t aHintContents)
{
mWindow = aWindow;
SetHintContents(aHintContents);
MediaStreamGraph* gm = MediaStreamGraph::GetInstance();
mStream = gm->CreateSourceStream(this);
}
void
DOMMediaStream::InitTrackUnionStream(nsIDOMWindow* aWindow, uint32_t aHintContents)
{
mWindow = aWindow;
SetHintContents(aHintContents);
MediaStreamGraph* gm = MediaStreamGraph::GetInstance();
mStream = gm->CreateTrackUnionStream(this);
}
already_AddRefed<DOMMediaStream>
DOMMediaStream::CreateSourceStream(nsIDOMWindow* aWindow, uint32_t aHintContents)
{
nsRefPtr<DOMMediaStream> stream = new DOMMediaStream();
stream->InitSourceStream(aWindow, aHintContents);
return stream.forget();
}
already_AddRefed<DOMMediaStream>
DOMMediaStream::CreateTrackUnionStream(nsIDOMWindow* aWindow, uint32_t aHintContents)
{
nsRefPtr<DOMMediaStream> stream = new DOMMediaStream();
stream->InitTrackUnionStream(aWindow, aHintContents);
return stream.forget();
}
bool
DOMMediaStream::CombineWithPrincipal(nsIPrincipal* aPrincipal)
{
return nsContentUtils::CombineResourcePrincipals(&mPrincipal, aPrincipal);
}
DOMLocalMediaStream::~DOMLocalMediaStream()
{
if (mStream) {
// Make sure Listeners of this stream know it's going away
Stop();
}
}
JSObject*
DOMLocalMediaStream::WrapObject(JSContext* aCx, JSObject* aScope)
{
return dom::LocalMediaStreamBinding::Wrap(aCx, aScope, this);
}
void
DOMLocalMediaStream::Stop()
{
if (mStream && mStream->AsSourceStream()) {
mStream->AsSourceStream()->EndAllTrackAndFinish();
}
}
already_AddRefed<DOMLocalMediaStream>
DOMLocalMediaStream::CreateSourceStream(nsIDOMWindow* aWindow, uint32_t aHintContents)
{
nsRefPtr<DOMLocalMediaStream> stream = new DOMLocalMediaStream();
stream->InitSourceStream(aWindow, aHintContents);
return stream.forget();
}
already_AddRefed<DOMLocalMediaStream>
DOMLocalMediaStream::CreateTrackUnionStream(nsIDOMWindow* aWindow, uint32_t aHintContents)
{
nsRefPtr<DOMLocalMediaStream> stream = new DOMLocalMediaStream();
stream->InitTrackUnionStream(aWindow, aHintContents);
return stream.forget();
}