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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 http://mozilla.org/MPL/2.0/. */
#include "DynamicsCompressorNode.h"
#include "mozilla/dom/DynamicsCompressorNodeBinding.h"
#include "AudioNodeEngine.h"
#include "AudioNodeTrack.h"
#include "AudioDestinationNode.h"
#include "WebAudioUtils.h"
#include "blink/DynamicsCompressor.h"
using WebCore::DynamicsCompressor;
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_INHERITED(DynamicsCompressorNode, AudioNode,
mThreshold, mKnee, mRatio, mAttack, mRelease)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DynamicsCompressorNode)
NS_INTERFACE_MAP_END_INHERITING(AudioNode)
NS_IMPL_ADDREF_INHERITED(DynamicsCompressorNode, AudioNode)
NS_IMPL_RELEASE_INHERITED(DynamicsCompressorNode, AudioNode)
class DynamicsCompressorNodeEngine final : public AudioNodeEngine {
public:
explicit DynamicsCompressorNodeEngine(AudioNode* aNode,
AudioDestinationNode* aDestination)
: AudioNodeEngine(aNode),
mDestination(aDestination->Track())
// Keep the default value in sync with the default value in
// DynamicsCompressorNode::DynamicsCompressorNode.
,
mThreshold(-24.f),
mKnee(30.f),
mRatio(12.f),
mAttack(0.003f),
mRelease(0.25f),
mCompressor(new DynamicsCompressor(mDestination->mSampleRate, 2)) {}
enum Parameters { THRESHOLD, KNEE, RATIO, ATTACK, RELEASE };
void RecvTimelineEvent(uint32_t aIndex, AudioTimelineEvent& aEvent) override {
MOZ_ASSERT(mDestination);
WebAudioUtils::ConvertAudioTimelineEventToTicks(aEvent, mDestination);
switch (aIndex) {
case THRESHOLD:
mThreshold.InsertEvent<int64_t>(aEvent);
break;
case KNEE:
mKnee.InsertEvent<int64_t>(aEvent);
break;
case RATIO:
mRatio.InsertEvent<int64_t>(aEvent);
break;
case ATTACK:
mAttack.InsertEvent<int64_t>(aEvent);
break;
case RELEASE:
mRelease.InsertEvent<int64_t>(aEvent);
break;
default:
NS_ERROR("Bad DynamicsCompresssorNodeEngine TimelineParameter");
}
}
void ProcessBlock(AudioNodeTrack* aTrack, GraphTime aFrom,
const AudioBlock& aInput, AudioBlock* aOutput,
bool* aFinished) override {
if (aInput.IsNull()) {
// Just output silence
*aOutput = aInput;
return;
}
const uint32_t channelCount = aInput.ChannelCount();
if (mCompressor->numberOfChannels() != channelCount) {
// Create a new compressor object with a new channel count
mCompressor = MakeUnique<WebCore::DynamicsCompressor>(
aTrack->mSampleRate, aInput.ChannelCount());
}
TrackTime pos = mDestination->GraphTimeToTrackTime(aFrom);
mCompressor->setParameterValue(DynamicsCompressor::ParamThreshold,
mThreshold.GetValueAtTime(pos));
mCompressor->setParameterValue(DynamicsCompressor::ParamKnee,
mKnee.GetValueAtTime(pos));
mCompressor->setParameterValue(DynamicsCompressor::ParamRatio,
mRatio.GetValueAtTime(pos));
mCompressor->setParameterValue(DynamicsCompressor::ParamAttack,
mAttack.GetValueAtTime(pos));
mCompressor->setParameterValue(DynamicsCompressor::ParamRelease,
mRelease.GetValueAtTime(pos));
aOutput->AllocateChannels(channelCount);
mCompressor->process(&aInput, aOutput, aInput.GetDuration());
SendReductionParamToMainThread(
aTrack,
mCompressor->parameterValue(DynamicsCompressor::ParamReduction));
}
size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override {
// Not owned:
// - mDestination (probably)
// - Don't count the AudioParamTimelines, their inner refs are owned by the
// AudioNode.
size_t amount = AudioNodeEngine::SizeOfExcludingThis(aMallocSizeOf);
amount += mCompressor->sizeOfIncludingThis(aMallocSizeOf);
return amount;
}
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override {
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
}
private:
void SendReductionParamToMainThread(AudioNodeTrack* aTrack,
float aReduction) {
MOZ_ASSERT(!NS_IsMainThread());
class Command final : public Runnable {
public:
Command(AudioNodeTrack* aTrack, float aReduction)
: mozilla::Runnable("Command"),
mTrack(aTrack),
mReduction(aReduction) {}
NS_IMETHOD Run() override {
RefPtr<DynamicsCompressorNode> node =
static_cast<DynamicsCompressorNode*>(
mTrack->Engine()->NodeMainThread());
if (node) {
node->SetReduction(mReduction);
}
return NS_OK;
}
private:
RefPtr<AudioNodeTrack> mTrack;
float mReduction;
};
mAbstractMainThread->Dispatch(do_AddRef(new Command(aTrack, aReduction)));
}
private:
RefPtr<AudioNodeTrack> mDestination;
AudioParamTimeline mThreshold;
AudioParamTimeline mKnee;
AudioParamTimeline mRatio;
AudioParamTimeline mAttack;
AudioParamTimeline mRelease;
UniquePtr<DynamicsCompressor> mCompressor;
};
DynamicsCompressorNode::DynamicsCompressorNode(AudioContext* aContext)
: AudioNode(aContext, 2, ChannelCountMode::Clamped_max,
ChannelInterpretation::Speakers),
mReduction(0) {
mThreshold = CreateAudioParam(DynamicsCompressorNodeEngine::THRESHOLD,
u"threshold"_ns, -24.f, -100.f, 0.f);
mKnee = CreateAudioParam(DynamicsCompressorNodeEngine::KNEE, u"knee"_ns, 30.f,
0.f, 40.f);
mRatio = CreateAudioParam(DynamicsCompressorNodeEngine::RATIO, u"ratio"_ns,
12.f, 1.f, 20.f);
mAttack = CreateAudioParam(DynamicsCompressorNodeEngine::ATTACK, u"attack"_ns,
0.003f, 0.f, 1.f);
mRelease = CreateAudioParam(DynamicsCompressorNodeEngine::RELEASE,
u"release"_ns, 0.25f, 0.f, 1.f);
DynamicsCompressorNodeEngine* engine =
new DynamicsCompressorNodeEngine(this, aContext->Destination());
mTrack = AudioNodeTrack::Create(
aContext, engine, AudioNodeTrack::NO_TRACK_FLAGS, aContext->Graph());
}
/* static */
already_AddRefed<DynamicsCompressorNode> DynamicsCompressorNode::Create(
AudioContext& aAudioContext, const DynamicsCompressorOptions& aOptions,
ErrorResult& aRv) {
RefPtr<DynamicsCompressorNode> audioNode =
new DynamicsCompressorNode(&aAudioContext);
audioNode->Initialize(aOptions, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
audioNode->Attack()->SetValue(aOptions.mAttack);
audioNode->Knee()->SetValue(aOptions.mKnee);
audioNode->Ratio()->SetValue(aOptions.mRatio);
audioNode->GetRelease()->SetValue(aOptions.mRelease);
audioNode->Threshold()->SetValue(aOptions.mThreshold);
return audioNode.forget();
}
size_t DynamicsCompressorNode::SizeOfExcludingThis(
MallocSizeOf aMallocSizeOf) const {
size_t amount = AudioNode::SizeOfExcludingThis(aMallocSizeOf);
amount += mThreshold->SizeOfIncludingThis(aMallocSizeOf);
amount += mKnee->SizeOfIncludingThis(aMallocSizeOf);
amount += mRatio->SizeOfIncludingThis(aMallocSizeOf);
amount += mAttack->SizeOfIncludingThis(aMallocSizeOf);
amount += mRelease->SizeOfIncludingThis(aMallocSizeOf);
return amount;
}
size_t DynamicsCompressorNode::SizeOfIncludingThis(
MallocSizeOf aMallocSizeOf) const {
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
}
JSObject* DynamicsCompressorNode::WrapObject(
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
return DynamicsCompressorNode_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla