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20742757be
- Implement/encapsulate binding for analyzer output/sender logic - Move to using FAnyDataReferences where possible over collections for analyzers - Misc clean-up #jira UE-147027 #rb phil.popp #preflight 627d3884332e182a583f19b3 [CL 20167469 by Rob Gay in ue5-main branch]
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Analysis/MetasoundFrontendVertexAnalyzerTriggerDensity.h"
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#include "MetasoundDataReference.h"
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#include "MetasoundPrimitives.h"
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#include "MetasoundRouter.h"
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#include "MetasoundTrigger.h"
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namespace Metasound
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{
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namespace Frontend
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{
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const FAnalyzerOutput& FVertexAnalyzerTriggerDensity::FOutputs::GetValue()
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{
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static const FAnalyzerOutput Value = { "TriggerDensity", GetMetasoundDataTypeName<float>() };
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return Value;
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}
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const FName& FVertexAnalyzerTriggerDensity::GetAnalyzerName()
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{
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static const FName AnalyzerName = "UE.Trigger.Density";
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return AnalyzerName;
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}
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const FName& FVertexAnalyzerTriggerDensity::GetDataType()
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{
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return GetMetasoundDataTypeName<FTrigger>();
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}
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FVertexAnalyzerTriggerDensity::FVertexAnalyzerTriggerDensity(const FCreateAnalyzerParams& InParams)
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: FVertexAnalyzerBase(InParams.AnalyzerAddress, InParams.VertexDataReference)
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, EnvelopeValue(TDataWriteReference<float>::CreateNew())
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, NumFramesPerBlock(InParams.OperatorSettings.GetNumFramesPerBlock())
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{
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Audio::FEnvelopeFollowerInitParams Params;
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Params.Mode = Audio::EPeakMode::Peak;
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Params.SampleRate = InParams.OperatorSettings.GetSampleRate();
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Params.NumChannels = 1;
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Params.AttackTimeMsec = 0;
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Params.ReleaseTimeMsec = 120;
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EnvelopeFollower.Init(Params);
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FVertexAnalyzerBase::BindOutputData<float>(FOutputs::GetValue().Name, InParams.OperatorSettings, TDataReadReference<float>(EnvelopeValue));
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}
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void FVertexAnalyzerTriggerDensity::Execute()
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{
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const FTrigger& Trigger = GetVertexData<FTrigger>();
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ScratchBuffer.Reset();
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ScratchBuffer.AddZeroed(NumFramesPerBlock);
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for (int32 i = 0; i < Trigger.Num(); ++i)
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{
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const int32 TriggerIndex = Trigger[i];
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// Can trigger in the future so ignore those beyond the current block
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if (TriggerIndex < ScratchBuffer.Num())
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{
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ScratchBuffer[TriggerIndex] = 1.0f;
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}
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}
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EnvelopeFollower.ProcessAudio(ScratchBuffer.GetData(), ScratchBuffer.Num());
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check(EnvelopeFollower.GetEnvelopeValues().Num() == 1);
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*EnvelopeValue = EnvelopeFollower.GetEnvelopeValues().Last();
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MarkOutputDirty();
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}
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} // namespace Frontend
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} // namespace Metasound
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