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/* -*- 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 */
#ifndef DynamicsCompressorNode_h_
#define DynamicsCompressorNode_h_
#include "AudioNode.h"
#include "AudioParam.h"
namespace mozilla::dom {
class AudioContext;
struct DynamicsCompressorOptions;
class DynamicsCompressorNode final : public AudioNode {
static already_AddRefed<DynamicsCompressorNode> Create(
AudioContext& aAudioContext, const DynamicsCompressorOptions& aOptions,
ErrorResult& aRv);
static already_AddRefed<DynamicsCompressorNode> Constructor(
const GlobalObject& aGlobal, AudioContext& aAudioContext,
const DynamicsCompressorOptions& aOptions, ErrorResult& aRv) {
return Create(aAudioContext, aOptions, aRv);
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
AudioParam* Threshold() const { return mThreshold; }
AudioParam* Knee() const { return mKnee; }
AudioParam* Ratio() const { return mRatio; }
AudioParam* Attack() const { return mAttack; }
// Called GetRelease to prevent clashing with the nsISupports::Release name
AudioParam* GetRelease() const { return mRelease; }
float Reduction() const { return mReduction; }
const char* NodeType() const override { return "DynamicsCompressorNode"; }
size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
void SetReduction(float aReduction) {
mReduction = aReduction;
void SetChannelCountModeValue(ChannelCountMode aMode,
ErrorResult& aRv) override {
if (aMode == ChannelCountMode::Max) {
aRv.ThrowNotSupportedError("Cannot set channel count mode to \"max\"");
AudioNode::SetChannelCountModeValue(aMode, aRv);
void SetChannelCount(uint32_t aChannelCount, ErrorResult& aRv) override {
if (aChannelCount > 2) {
nsPrintfCString("%u is greater than 2", aChannelCount));
AudioNode::SetChannelCount(aChannelCount, aRv);
explicit DynamicsCompressorNode(AudioContext* aContext);
~DynamicsCompressorNode() = default;
RefPtr<AudioParam> mThreshold;
RefPtr<AudioParam> mKnee;
RefPtr<AudioParam> mRatio;
float mReduction;
RefPtr<AudioParam> mAttack;
RefPtr<AudioParam> mRelease;
} // namespace mozilla::dom