зеркало из https://github.com/mozilla/gecko-dev.git
116 строки
3.4 KiB
C++
116 строки
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#ifndef MediaStreamTrackAudioSourceNode_h_
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#define MediaStreamTrackAudioSourceNode_h_
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#include "AudioNode.h"
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#include "AudioNodeEngine.h"
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#include "mozilla/WeakPtr.h"
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namespace mozilla {
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namespace dom {
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class AudioContext;
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struct MediaStreamTrackAudioSourceOptions;
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class MediaStreamTrackAudioSourceNodeEngine final : public AudioNodeEngine {
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public:
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explicit MediaStreamTrackAudioSourceNodeEngine(AudioNode* aNode)
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: AudioNodeEngine(aNode), mEnabled(false) {}
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bool IsEnabled() const { return mEnabled; }
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enum Parameters { ENABLE };
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void SetInt32Parameter(uint32_t aIndex, int32_t aValue) override {
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switch (aIndex) {
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case ENABLE:
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mEnabled = !!aValue;
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break;
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default:
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NS_ERROR("MediaStreamTrackAudioSourceNodeEngine bad parameter index");
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}
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}
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private:
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bool mEnabled;
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};
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class MediaStreamTrackAudioSourceNode
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: public AudioNode,
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public PrincipalChangeObserver<MediaStreamTrack>,
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public SupportsWeakPtr<MediaStreamTrackAudioSourceNode> {
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public:
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static already_AddRefed<MediaStreamTrackAudioSourceNode> Create(
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AudioContext& aContext,
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const MediaStreamTrackAudioSourceOptions& aOptions, ErrorResult& aRv);
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NS_DECL_ISUPPORTS_INHERITED
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MOZ_DECLARE_WEAKREFERENCE_TYPENAME(MediaStreamTrackAudioSourceNode)
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MediaStreamTrackAudioSourceNode,
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AudioNode)
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static already_AddRefed<MediaStreamTrackAudioSourceNode> Constructor(
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const GlobalObject& aGlobal, AudioContext& aAudioContext,
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const MediaStreamTrackAudioSourceOptions& aOptions, ErrorResult& aRv) {
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return Create(aAudioContext, aOptions, aRv);
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}
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JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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void DestroyMediaTrack() override;
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uint16_t NumberOfInputs() const override { return 0; }
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const char* NodeType() const override {
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return "MediaStreamTrackAudioSourceNode";
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}
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virtual const char* CrossOriginErrorString() const {
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return "MediaStreamTrackAudioSourceNodeCrossOrigin";
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}
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size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
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size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
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// From PrincipalChangeObserver<MediaStreamTrack>.
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void PrincipalChanged(MediaStreamTrack* aMediaStreamTrack) override;
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protected:
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explicit MediaStreamTrackAudioSourceNode(AudioContext* aContext);
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void Init(MediaStreamTrack* aMediaStreamTrack, ErrorResult& aRv);
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void Destroy();
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virtual ~MediaStreamTrackAudioSourceNode();
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class TrackListener : public MediaStreamTrackConsumer {
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public:
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explicit TrackListener(MediaStreamTrackAudioSourceNode* aNode)
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: mNode(aNode) {}
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void NotifyEnded(MediaStreamTrack* aTrack) override {
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if (mNode) {
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mNode->MarkInactive();
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mNode->DestroyMediaTrack();
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mNode = nullptr;
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}
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}
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private:
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WeakPtr<MediaStreamTrackAudioSourceNode> mNode;
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};
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private:
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RefPtr<MediaInputPort> mInputPort;
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RefPtr<MediaStreamTrack> mInputTrack;
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TrackListener mTrackListener;
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};
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} // namespace dom
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} // namespace mozilla
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#endif
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