/* -*- 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/. */ #ifndef AudioDestinationNode_h_ #define AudioDestinationNode_h_ #include "mozilla/dom/AudioChannelBinding.h" #include "AudioNode.h" #include "nsIAudioChannelAgent.h" namespace mozilla { namespace dom { class AudioContext; class AudioDestinationNode final : public AudioNode , public nsIAudioChannelAgentCallback , public MainThreadMediaStreamListener { public: // This node type knows what MediaStreamGraph to use based on // whether it's in offline mode. AudioDestinationNode(AudioContext* aContext, bool aIsOffline, AudioChannel aChannel = AudioChannel::Normal, uint32_t aNumberOfChannels = 0, uint32_t aLength = 0, float aSampleRate = 0.0f); void DestroyMediaStream() override; NS_DECL_ISUPPORTS_INHERITED NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioDestinationNode, AudioNode) NS_DECL_NSIAUDIOCHANNELAGENTCALLBACK JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override; uint16_t NumberOfOutputs() const final override { return 0; } uint32_t MaxChannelCount() const; void SetChannelCount(uint32_t aChannelCount, ErrorResult& aRv) override; // Returns the stream or null after unlink. AudioNodeStream* Stream() { return mStream; } void Mute(); void Unmute(); void Suspend(); void Resume(); void StartRendering(Promise* aPromise); void OfflineShutdown(); AudioChannel MozAudioChannelType() const; void NotifyMainThreadStreamFinished() override; void FireOfflineCompletionEvent(); nsresult CreateAudioChannelAgent(); void DestroyAudioChannelAgent(); const char* NodeType() const override { return "AudioDestinationNode"; } size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override; size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override; void InputMuted(bool aInputMuted); void ResolvePromise(AudioBuffer* aRenderedBuffer); unsigned long Length() { MOZ_ASSERT(mIsOffline); return mFramesToProduce; } protected: virtual ~AudioDestinationNode(); private: void SetMozAudioChannelType(AudioChannel aValue, ErrorResult& aRv); bool CheckAudioChannelPermissions(AudioChannel aValue); SelfReference<AudioDestinationNode> mOfflineRenderingRef; uint32_t mFramesToProduce; nsCOMPtr<nsIAudioChannelAgent> mAudioChannelAgent; RefPtr<MediaInputPort> mCaptureStreamPort; RefPtr<Promise> mOfflineRenderingPromise; // Audio Channel Type. AudioChannel mAudioChannel; bool mIsOffline; bool mAudioChannelSuspended; bool mCaptured; }; } // namespace dom } // namespace mozilla #endif