mirror of
https://github.com/classilla/tenfourfox.git
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90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MediaStreamAudioDestinationNode.h"
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#include "nsIDocument.h"
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#include "mozilla/dom/MediaStreamAudioDestinationNodeBinding.h"
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#include "AudioNodeEngine.h"
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#include "AudioNodeStream.h"
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#include "DOMMediaStream.h"
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#include "TrackUnionStream.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_INHERITED(MediaStreamAudioDestinationNode, AudioNode, mDOMStream)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(MediaStreamAudioDestinationNode)
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NS_INTERFACE_MAP_END_INHERITING(AudioNode)
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NS_IMPL_ADDREF_INHERITED(MediaStreamAudioDestinationNode, AudioNode)
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NS_IMPL_RELEASE_INHERITED(MediaStreamAudioDestinationNode, AudioNode)
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MediaStreamAudioDestinationNode::MediaStreamAudioDestinationNode(AudioContext* aContext)
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: AudioNode(aContext,
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2,
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ChannelCountMode::Explicit,
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ChannelInterpretation::Speakers)
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, mDOMStream(
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DOMAudioNodeMediaStream::CreateTrackUnionStream(GetOwner(),
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this,
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aContext->Graph()))
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{
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// Ensure an audio track with the correct ID is exposed to JS
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mDOMStream->CreateOwnDOMTrack(AudioNodeStream::AUDIO_TRACK, MediaSegment::AUDIO);
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ProcessedMediaStream* outputStream = mDOMStream->GetInputStream()->AsProcessedStream();
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MOZ_ASSERT(!!outputStream);
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AudioNodeEngine* engine = new AudioNodeEngine(this);
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mStream = AudioNodeStream::Create(aContext, engine,
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AudioNodeStream::EXTERNAL_OUTPUT);
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mPort = outputStream->AllocateInputPort(mStream, AudioNodeStream::AUDIO_TRACK);
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nsIDocument* doc = aContext->GetParentObject()->GetExtantDoc();
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if (doc) {
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mDOMStream->CombineWithPrincipal(doc->NodePrincipal());
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}
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}
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MediaStreamAudioDestinationNode::~MediaStreamAudioDestinationNode()
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{
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}
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size_t
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MediaStreamAudioDestinationNode::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const
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{
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// Future:
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// - mDOMStream
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size_t amount = AudioNode::SizeOfExcludingThis(aMallocSizeOf);
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amount += mPort->SizeOfIncludingThis(aMallocSizeOf);
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return amount;
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}
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size_t
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MediaStreamAudioDestinationNode::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
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{
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return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
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}
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void
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MediaStreamAudioDestinationNode::DestroyMediaStream()
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{
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AudioNode::DestroyMediaStream();
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if (mPort) {
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mPort->Destroy();
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mPort = nullptr;
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}
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}
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JSObject*
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MediaStreamAudioDestinationNode::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return MediaStreamAudioDestinationNodeBinding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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