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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 "nsAutoPtr.h"
#include "AudioNodeEngine.h"
#include "AudioNodeStream.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_INHERITED(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->Stream())
// 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->SampleRate(), 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(AudioNodeStream* aStream,
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 = new WebCore::DynamicsCompressor(aStream->SampleRate(),
aInput.ChannelCount());
}
StreamTime pos = mDestination->GraphTimeToStreamTime(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(aStream,
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(AudioNodeStream* aStream, float aReduction)
{
MOZ_ASSERT(!NS_IsMainThread());
class Command final : public Runnable
{
public:
Command(AudioNodeStream* aStream, float aReduction)
: mStream(aStream)
, mReduction(aReduction)
{
}
NS_IMETHOD Run() override
{
RefPtr<DynamicsCompressorNode> node =
static_cast<DynamicsCompressorNode*>
(mStream->Engine()->NodeMainThread());
if (node) {
node->SetReduction(mReduction);
}
return NS_OK;
}
private:
RefPtr<AudioNodeStream> mStream;
float mReduction;
};
NS_DispatchToMainThread(new Command(aStream, aReduction));
}
private:
AudioNodeStream* mDestination;
AudioParamTimeline mThreshold;
AudioParamTimeline mKnee;
AudioParamTimeline mRatio;
AudioParamTimeline mAttack;
AudioParamTimeline mRelease;
nsAutoPtr<DynamicsCompressor> mCompressor;
};
DynamicsCompressorNode::DynamicsCompressorNode(AudioContext* aContext)
: AudioNode(aContext,
2,
ChannelCountMode::Explicit,
ChannelInterpretation::Speakers)
, mThreshold(new AudioParam(this, DynamicsCompressorNodeEngine::THRESHOLD,
-24.f, "threshold"))
, mKnee(new AudioParam(this, DynamicsCompressorNodeEngine::KNEE,
30.f, "knee"))
, mRatio(new AudioParam(this, DynamicsCompressorNodeEngine::RATIO,
12.f, "ratio"))
, mReduction(0)
, mAttack(new AudioParam(this, DynamicsCompressorNodeEngine::ATTACK,
0.003f, "attack"))
, mRelease(new AudioParam(this, DynamicsCompressorNodeEngine::RELEASE,
0.25f, "release"))
{
DynamicsCompressorNodeEngine* engine = new DynamicsCompressorNodeEngine(this, aContext->Destination());
mStream = AudioNodeStream::Create(aContext, engine,
AudioNodeStream::NO_STREAM_FLAGS,
aContext->Graph());
}
DynamicsCompressorNode::~DynamicsCompressorNode()
{
}
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 DynamicsCompressorNodeBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla
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