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89 lines
2.4 KiB
C++
89 lines
2.4 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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#ifndef AudioDestinationNode_h_
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#define AudioDestinationNode_h_
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#include "mozilla/dom/AudioChannelBinding.h"
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#include "AudioNode.h"
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#include "nsIDOMEventListener.h"
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#include "nsIAudioChannelAgent.h"
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#include "AudioChannelCommon.h"
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#include "nsWeakReference.h"
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namespace mozilla {
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namespace dom {
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class AudioContext;
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class AudioDestinationNode : public AudioNode
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, public nsIDOMEventListener
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, public nsIAudioChannelAgentCallback
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, public nsSupportsWeakReference
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{
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public:
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// This node type knows what MediaStreamGraph to use based on
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// whether it's in offline mode.
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AudioDestinationNode(AudioContext* aContext,
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bool aIsOffline,
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uint32_t aNumberOfChannels = 0,
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uint32_t aLength = 0,
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float aSampleRate = 0.0f);
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virtual void DestroyMediaStream() MOZ_OVERRIDE;
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioDestinationNode, AudioNode)
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aScope) MOZ_OVERRIDE;
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virtual uint16_t NumberOfOutputs() const MOZ_FINAL MOZ_OVERRIDE
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{
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return 0;
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}
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uint32_t MaxChannelCount() const;
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virtual void SetChannelCount(uint32_t aChannelCount,
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ErrorResult& aRv) MOZ_OVERRIDE;
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void Mute();
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void Unmute();
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void StartRendering();
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void OfflineShutdown();
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// nsIDOMEventListener
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NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent);
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// nsIAudioChannelAgentCallback
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NS_IMETHOD CanPlayChanged(int32_t aCanPlay);
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AudioChannel MozAudioChannelType() const;
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void SetMozAudioChannelType(AudioChannel aValue, ErrorResult& aRv);
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private:
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bool CheckAudioChannelPermissions(AudioChannel aValue);
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void CreateAudioChannelAgent();
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void SetCanPlay(bool aCanPlay);
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SelfReference<AudioDestinationNode> mOfflineRenderingRef;
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uint32_t mFramesToProduce;
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nsCOMPtr<nsIAudioChannelAgent> mAudioChannelAgent;
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// Audio Channel Type.
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AudioChannel mAudioChannel;
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};
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}
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}
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#endif
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