You've already forked UnrealEngineUWP
mirror of
https://github.com/izzy2lost/UnrealEngineUWP.git
synced 2026-03-26 18:15:20 -07:00
bd158319e3
- Migrate/Create base WaveTable functionality & editor bits from Modulation plugin so it can be leveraged for other assets & tools - Add WaveTableImporter/Sampler classes for use by WaveTable editor and MetaSound nodes (and potentially other systems) #rb helen.yang #rb phil.popp #jira UE-156632 #rnx #preflight 62aa5076634e82e5d1000229 [CL 20677783 by Rob Gay in ue5-main branch]
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
|
|
#include "WaveTableFileUtilities.h"
|
|
|
|
#include "Factories/SoundFactory.h"
|
|
#include "HAL/Platform.h"
|
|
#include "Sound/SoundWave.h"
|
|
#include "UObject/SoftObjectPath.h"
|
|
#include "UObject/Object.h"
|
|
#include "UObject/ObjectMacros.h"
|
|
#include "UObject/Package.h"
|
|
#include "Utils.h"
|
|
#include "WaveTableSampler.h"
|
|
|
|
|
|
namespace WaveTable
|
|
{
|
|
namespace Editor
|
|
{
|
|
namespace FileUtilities
|
|
{
|
|
void LoadPCMChannel(const FString& InFilePath, int32 InChannelIndex, TArray<float>& OutPCMData)
|
|
{
|
|
OutPCMData.Empty();
|
|
|
|
if (!InFilePath.IsEmpty())
|
|
{
|
|
if (USoundFactory* SoundWaveFactory = NewObject<USoundFactory>())
|
|
{
|
|
// Setup sane defaults for importing localized sound waves
|
|
SoundWaveFactory->bAutoCreateCue = false;
|
|
SoundWaveFactory->SuppressImportDialogs();
|
|
|
|
UPackage* TempPackage = CreatePackage(TEXT("/Temp/WaveTable"));
|
|
if (USoundWave* SoundWave = ImportObject<USoundWave>(TempPackage, "ImportedWaveTable", RF_Public | RF_Standalone, *InFilePath, nullptr, SoundWaveFactory))
|
|
{
|
|
TArray<uint8> RawPCMData;
|
|
uint32 SampleRate = 0;
|
|
uint16 NumChannels = 0;
|
|
SoundWave->GetImportedSoundWaveData(RawPCMData, SampleRate, NumChannels);
|
|
|
|
if (NumChannels > 0)
|
|
{
|
|
const int32 NumFrames = RawPCMData.Num() / NumChannels / sizeof(int16);
|
|
OutPCMData.Empty();
|
|
OutPCMData.AddZeroed(NumFrames);
|
|
const int16* RawDataPtr = (const int16*)(RawPCMData.GetData());
|
|
const int32 ChannelOffset = (InChannelIndex % NumChannels) * sizeof(int16);
|
|
constexpr float Max16BitAsFloat = static_cast<float>(TNumericLimits<int16>::Max());
|
|
for (int32 i = 0; i < OutPCMData.Num(); ++i)
|
|
{
|
|
OutPCMData[i] = (RawDataPtr[(i * NumChannels) + ChannelOffset]) / Max16BitAsFloat;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} // namespace FileUtilities
|
|
} // namespace Editor
|
|
} // namespace WaveTable
|