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#rb Aaron.McLeran #jira UE-134456 #preflight 61f01048fd5285142b185e3e #ROBOMERGE-AUTHOR: phil.popp #ROBOMERGE-SOURCE: CL 18722673 in //UE5/Release-5.0/... via CL 18722699 via CL 18722914 #ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v903-18687472) [CL 18722926 by phil popp in ue5-main branch]
70 lines
3.2 KiB
C++
70 lines
3.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Containers/Array.h"
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#include "DSP/BufferVectorOperations.h"
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#include "DSP/Dsp.h"
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namespace Audio
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{
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/** A deinterleaved multichannel buffer */
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using FMultichannelBuffer = TArray<Audio::FAlignedFloatBuffer>;
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/** A deinterleaved multichannel buffer view. The semantics are similar to
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* TArray<> and TArrayView<>. FMultichannelBufferView allows sample values to
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* be read and written, but it cannot be resized.
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*/
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using FMultichannelBufferView = TArray<TArrayView<float>>;
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/** A deinterleaved multichannel circular buffer */
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using FMultichannelCircularBuffer = TArray<Audio::TCircularAudioBuffer<float>>;
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/** Set the number of channels and frames for a multichannel buffer.
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*
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* @param InNumChannels - Number of channels to hold in the buffer.
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* @param InNumFrames - Number of frames to hold in the buffer.
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* @param OutBuffer - Buffer to resize.
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*/
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SIGNALPROCESSING_API void SetMultichannelBufferSize(int32 InNumChannels, int32 InNumFrames, FMultichannelBuffer& OutBuffer);
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/** Set the number of channels and capacity for a multichannel circular buffer.
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*
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* @param InNumChannels - Number of channels to hold in the buffer.
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* @param InNumFrames - Maximum number of frames the buffer can hold.
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* @param OutBuffer - Buffer to resize.
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*/
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SIGNALPROCESSING_API void SetMultichannelCircularBufferCapacity(int32 InNumChannels, int32 InNumFrames, FMultichannelCircularBuffer& OutBuffer);
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/** Set the number of frames for a multichannel buffer.
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*
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* @param InNumFrames - Number of frames to hold in the buffer.
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* @param OutBuffer - Buffer to resize.
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*/
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SIGNALPROCESSING_API void SetMultichannelBufferSize(int32 InNumFrames, FMultichannelBuffer& OutBuffer);
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/** Return the number of frames in the buffer. It is expected that each channel
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* contains the same number of frames. */
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SIGNALPROCESSING_API int32 GetMultichannelBufferNumFrames(const FMultichannelBuffer& InBuffer);
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/** Return the number of frames in the buffer. It is expected that each channel
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* contains the same number of frames. */
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SIGNALPROCESSING_API int32 GetMultichannelBufferNumFrames(const FMultichannelCircularBuffer& InBuffer);
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/** Return the number of frames in the buffer. It is expected that each channel
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* contains the same number of frames. */
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SIGNALPROCESSING_API int32 GetMultichannelBufferNumFrames(const FMultichannelBufferView& InBuffer);
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/** Creates a FMultichannelBufferView from a FMultichannelBuffer. */
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SIGNALPROCESSING_API FMultichannelBufferView MakeMultichannelBufferView(FMultichannelBuffer& InBuffer);
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/** Creates a FMultichannelBufferView from a FMultichannelBuffer. */
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SIGNALPROCESSING_API FMultichannelBufferView MakeMultichannelBufferView(FMultichannelBuffer& InBuffer, int32 InStartFrameIndex, int32 InNumFrames);
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/** Slice a multichannel buffer view to a given frame range. */
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SIGNALPROCESSING_API FMultichannelBufferView SliceMultichannelBufferView(const FMultichannelBufferView& View, int32 InStartFrameIndex, int32 InNumFrames);
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/** Shift the start frame of a multichannel buffer view to a given number of frames. */
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SIGNALPROCESSING_API void ShiftMultichannelBufferView(int32 InNumFrames, FMultichannelBufferView& View);
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}
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