AudioWorkletNode.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 https://mozilla.org/MPL/2.0/. */

#ifndef AudioWorkletNode_h_

#define AudioWorkletNode_h_

#include "AudioNode.h"

namespace mozilla::dom {

class AudioParamMap;

struct AudioWorkletNodeOptions;

class MessagePort;

struct NamedAudioParamTimeline;

struct ProcessorErrorDetails;

template <typename KeyType, typename ValueType>

class Record;

class AudioWorkletNode : public AudioNode {

 public:

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioWorkletNode, AudioNode)

  IMPL_EVENT_HANDLER(processorerror)

  static already_AddRefed<AudioWorkletNode> Constructor(

      const GlobalObject& aGlobal, AudioContext& aAudioContext,

      const nsAString& aName, const AudioWorkletNodeOptions& aOptions,

      ErrorResult& aRv);

  AudioParamMap* GetParameters(ErrorResult& aRv);

  MessagePort* Port() const { return mPort; };

  JSObject* WrapObject(JSContext* aCx,

                       JS::Handle<JSObject*> aGivenProto) override;

  // AudioNode methods

  uint16_t NumberOfInputs() const override { return mInputCount; }

  uint16_t NumberOfOutputs() const override { return mOutputCount; }

  const char* NodeType() const override { return "AudioWorkletNode"; }

  void DispatchProcessorErrorEvent(const ProcessorErrorDetails& aDetails);

  size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;

  size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;

 private:

  AudioWorkletNode(AudioContext* aAudioContext, const nsAString& aName,

                   const AudioWorkletNodeOptions& aOptions);

  ~AudioWorkletNode() = default;

  void InitializeParameters(nsTArray<NamedAudioParamTimeline>* aParamTimelines,

                            ErrorResult& aRv);

  void SendParameterData(

      const Optional<Record<nsString, double>>& aParameterData);

  nsString mNodeName;

  RefPtr<MessagePort> mPort;

  RefPtr<AudioParamMap> mParameters;

  uint16_t mInputCount;

  uint16_t mOutputCount;

};

}  // namespace mozilla::dom

#endif  // AudioWorkletNode_h_