143 lines
4.5 KiB
C++
143 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:set ts=2 sw=2 sts=2 et cindent: */
|
|
/* 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 "MediaStreamAudioDestinationNode.h"
|
|
#include "nsIDocument.h"
|
|
#include "mozilla/dom/MediaStreamAudioDestinationNodeBinding.h"
|
|
#include "AudioNodeEngine.h"
|
|
#include "AudioNodeStream.h"
|
|
#include "DOMMediaStream.h"
|
|
#include "MediaStreamTrack.h"
|
|
#include "TrackUnionStream.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
class AudioDestinationTrackSource :
|
|
public MediaStreamTrackSource
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioDestinationTrackSource,
|
|
MediaStreamTrackSource)
|
|
|
|
AudioDestinationTrackSource(MediaStreamAudioDestinationNode* aNode,
|
|
nsIPrincipal* aPrincipal)
|
|
: MediaStreamTrackSource(aPrincipal, nsString())
|
|
, mNode(aNode)
|
|
{
|
|
}
|
|
|
|
void Destroy() override
|
|
{
|
|
if (mNode) {
|
|
mNode->DestroyMediaStream();
|
|
mNode = nullptr;
|
|
}
|
|
}
|
|
|
|
MediaSourceEnum GetMediaSource() const override
|
|
{
|
|
return MediaSourceEnum::AudioCapture;
|
|
}
|
|
|
|
void Stop() override
|
|
{
|
|
Destroy();
|
|
}
|
|
|
|
private:
|
|
virtual ~AudioDestinationTrackSource() {}
|
|
|
|
RefPtr<MediaStreamAudioDestinationNode> mNode;
|
|
};
|
|
|
|
NS_IMPL_ADDREF_INHERITED(AudioDestinationTrackSource,
|
|
MediaStreamTrackSource)
|
|
NS_IMPL_RELEASE_INHERITED(AudioDestinationTrackSource,
|
|
MediaStreamTrackSource)
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(AudioDestinationTrackSource)
|
|
NS_INTERFACE_MAP_END_INHERITING(MediaStreamTrackSource)
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(AudioDestinationTrackSource,
|
|
MediaStreamTrackSource,
|
|
mNode)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(MediaStreamAudioDestinationNode, AudioNode, mDOMStream)
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(MediaStreamAudioDestinationNode)
|
|
NS_INTERFACE_MAP_END_INHERITING(AudioNode)
|
|
|
|
NS_IMPL_ADDREF_INHERITED(MediaStreamAudioDestinationNode, AudioNode)
|
|
NS_IMPL_RELEASE_INHERITED(MediaStreamAudioDestinationNode, AudioNode)
|
|
|
|
MediaStreamAudioDestinationNode::MediaStreamAudioDestinationNode(AudioContext* aContext)
|
|
: AudioNode(aContext,
|
|
2,
|
|
ChannelCountMode::Explicit,
|
|
ChannelInterpretation::Speakers)
|
|
, mDOMStream(
|
|
DOMAudioNodeMediaStream::CreateTrackUnionStreamAsInput(GetOwner(),
|
|
this,
|
|
aContext->Graph()))
|
|
{
|
|
// Ensure an audio track with the correct ID is exposed to JS
|
|
nsIDocument* doc = aContext->GetParentObject()->GetExtantDoc();
|
|
RefPtr<MediaStreamTrackSource> source =
|
|
new AudioDestinationTrackSource(this, doc->NodePrincipal());
|
|
RefPtr<MediaStreamTrack> track =
|
|
mDOMStream->CreateDOMTrack(AudioNodeStream::AUDIO_TRACK,
|
|
MediaSegment::AUDIO, source,
|
|
MediaTrackConstraints());
|
|
mDOMStream->AddTrackInternal(track);
|
|
|
|
ProcessedMediaStream* outputStream = mDOMStream->GetInputStream()->AsProcessedStream();
|
|
MOZ_ASSERT(!!outputStream);
|
|
AudioNodeEngine* engine = new AudioNodeEngine(this);
|
|
mStream = AudioNodeStream::Create(aContext, engine,
|
|
AudioNodeStream::EXTERNAL_OUTPUT,
|
|
aContext->Graph());
|
|
mPort = outputStream->AllocateInputPort(mStream, AudioNodeStream::AUDIO_TRACK);
|
|
}
|
|
|
|
MediaStreamAudioDestinationNode::~MediaStreamAudioDestinationNode()
|
|
{
|
|
}
|
|
|
|
size_t
|
|
MediaStreamAudioDestinationNode::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
// Future:
|
|
// - mDOMStream
|
|
size_t amount = AudioNode::SizeOfExcludingThis(aMallocSizeOf);
|
|
amount += mPort->SizeOfIncludingThis(aMallocSizeOf);
|
|
return amount;
|
|
}
|
|
|
|
size_t
|
|
MediaStreamAudioDestinationNode::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
|
|
}
|
|
|
|
void
|
|
MediaStreamAudioDestinationNode::DestroyMediaStream()
|
|
{
|
|
AudioNode::DestroyMediaStream();
|
|
if (mPort) {
|
|
mPort->Destroy();
|
|
mPort = nullptr;
|
|
}
|
|
}
|
|
|
|
JSObject*
|
|
MediaStreamAudioDestinationNode::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
|
|
{
|
|
return MediaStreamAudioDestinationNodeBinding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|