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- Up to CL8320930 from DevOnline and 8311605 Merge Down from Main - skipped some Fortnite content/plugins/code where it tried to reintegrate files that had been moved pending investigation #rb none [CL 8321295 by Josh Markiewicz in Main branch]
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Features/IModularFeature.h"
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namespace Audio
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{
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struct FCaptureDeviceInfo
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{
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FString DeviceName;
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int32 InputChannels;
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int32 PreferredSampleRate;
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bool bSupportsHardwareAEC;
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};
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const int32 DefaultDeviceIndex = INDEX_NONE;
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struct FAudioCaptureDeviceParams
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{
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// set to true to use this device's built-in echo cancellation, if possible.
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bool bUseHardwareAEC;
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// Set this to INDEX_NONE
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int32 DeviceIndex;
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FAudioCaptureDeviceParams()
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: bUseHardwareAEC(false)
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, DeviceIndex(DefaultDeviceIndex)
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{
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}
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};
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typedef TFunction<void(const float* InAudio, int32 NumFrames, int32 NumChannels, double StreamTime, bool bOverFlow)> FOnCaptureFunction;
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class IAudioCaptureStream : public IModularFeature
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{
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public:
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IAudioCaptureStream() {}
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virtual ~IAudioCaptureStream() {}
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// Returns the audio capture device information at the given Id.
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virtual bool GetCaptureDeviceInfo(FCaptureDeviceInfo& OutInfo, int32 DeviceIndex) = 0;
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// Opens the audio capture stream with the given parameters
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virtual bool OpenCaptureStream(const FAudioCaptureDeviceParams& InParams, FOnCaptureFunction InOnCapture, uint32 NumFramesDesired) = 0;
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// Closes the audio capture stream
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virtual bool CloseStream() = 0;
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// Start the audio capture stream
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virtual bool StartStream() = 0;
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// Stop the audio capture stream
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virtual bool StopStream() = 0;
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// Abort the audio capture stream (stop and close)
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virtual bool AbortStream() = 0;
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// Get the stream time of the audio capture stream
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virtual bool GetStreamTime(double& OutStreamTime) = 0;
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// Get the sample rate in use by the stream.
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virtual int32 GetSampleRate() const = 0;
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// Returns if the audio capture stream has been opened.
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virtual bool IsStreamOpen() const = 0;
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// Returns true if the audio capture stream is currently capturing audio.
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virtual bool IsCapturing() const = 0;
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// This is the callback for querying audio from the input device.
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virtual void OnAudioCapture(void* InBuffer, uint32 InBufferFrames, double StreamTime, bool bOverflow) = 0;
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// Returns the total amount of audio devices.
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virtual bool GetInputDevicesAvailable(TArray<FCaptureDeviceInfo>& OutDevices) = 0;
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};
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class IAudioCaptureFactory : public IModularFeature
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{
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public:
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IAudioCaptureFactory() {}
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virtual ~IAudioCaptureFactory() {}
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// IModularFeature name. Use this to register an implementation of IAudioCaptureDevice.
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static FName GetModularFeatureName()
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{
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static FName AudioCaptureFeatureName = FName(TEXT("AudioCaptureStream"));
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return AudioCaptureFeatureName;
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}
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virtual TUniquePtr<IAudioCaptureStream> CreateNewAudioCaptureStream() = 0;
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};
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} // namespace Audio
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