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#jira UE-91858 #rb Ethan.Geller #ROBOMERGE-SOURCE: CL 12926579 in //UE4/Release-4.25/... via CL 12926596 via CL 12926657 #ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v682-12900288) [CL 12926695 by maxwell hayes in Main branch]
50 lines
2.1 KiB
C++
50 lines
2.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "AudioCaptureCore.h"
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#include "AudioCaptureCoreLog.h"
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#include "Features/IModularFeatures.h"
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namespace Audio
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{
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// Null implementation for compiler
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class FNullAudioCaptureDevice : public IAudioCaptureStream
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{
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public:
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FNullAudioCaptureDevice() {}
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// Begin IAudioCaptureStream
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virtual bool GetCaptureDeviceInfo(FCaptureDeviceInfo& OutInfo, int32 DeviceIndex) override { return false; }
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virtual bool OpenCaptureStream(const FAudioCaptureDeviceParams& InParams, FOnCaptureFunction OnCapture, uint32 NumFramesDesired) override { return false; }
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virtual bool CloseStream() override { return false; }
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virtual bool StartStream() override { return false; }
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virtual bool StopStream() override { return false; }
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virtual bool AbortStream() override { return false; }
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virtual bool GetStreamTime(double& OutStreamTime) override { return false; }
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virtual int32 GetSampleRate() const override { return 0; }
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virtual bool IsStreamOpen() const override { return false; }
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virtual bool IsCapturing() const override { return false; }
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virtual void OnAudioCapture(void* InBuffer, uint32 InBufferFrames, double StreamTime, bool bOverflow) override {}
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virtual bool GetInputDevicesAvailable(TArray<FCaptureDeviceInfo>& OutDevices) override { return false; }
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// ~End IAudioCaptureStream
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};
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FORCEINLINE TUniquePtr<IAudioCaptureStream> FAudioCapture::CreateImpl()
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{
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TArray<IAudioCaptureFactory*> AudioCaptureStreamFactories = IModularFeatures::Get().GetModularFeatureImplementations<IAudioCaptureFactory>(IAudioCaptureFactory::GetModularFeatureName());
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// For now, just return the first audio capture stream implemented. We can make this configurable at a later point.
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if (AudioCaptureStreamFactories.Num() > 0 && AudioCaptureStreamFactories[0] != nullptr)
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{
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return AudioCaptureStreamFactories[0]->CreateNewAudioCaptureStream();
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}
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else
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{
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UE_LOG(LogAudioCaptureCore, Display, TEXT("No Audio Capture implementations found. Audio input will be silent."));
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return TUniquePtr<IAudioCaptureStream>(new FNullAudioCaptureDevice());
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}
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}
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} // namespace audio
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