The main buffer processor data structure. More...

#include <pa_process.h>

Data Fields
unsigned long	framesPerUserBuffer

unsigned long	framesPerHostBuffer

PaUtilHostBufferSizeMode	hostBufferSizeMode

int	useNonAdaptingProcess

int	userOutputSampleFormatIsEqualToHost

int	userInputSampleFormatIsEqualToHost

unsigned long	framesPerTempBuffer

unsigned int	inputChannelCount

unsigned int	bytesPerHostInputSample

unsigned int	bytesPerUserInputSample

int	userInputIsInterleaved

PaUtilConverter *	inputConverter

PaUtilZeroer *	inputZeroer

unsigned int	outputChannelCount

unsigned int	bytesPerHostOutputSample

unsigned int	bytesPerUserOutputSample

int	userOutputIsInterleaved

PaUtilConverter *	outputConverter

PaUtilZeroer *	outputZeroer

unsigned long	initialFramesInTempInputBuffer

unsigned long	initialFramesInTempOutputBuffer

void *	tempInputBuffer

void **	tempInputBufferPtrs

unsigned long	framesInTempInputBuffer

void *	tempOutputBuffer

void **	tempOutputBufferPtrs

unsigned long	framesInTempOutputBuffer

PaStreamCallbackTimeInfo *	timeInfo

PaStreamCallbackFlags	callbackStatusFlags

int	hostInputIsInterleaved

unsigned long	hostInputFrameCount [2]

PaUtilChannelDescriptor *	hostInputChannels [2]

int	hostOutputIsInterleaved

unsigned long	hostOutputFrameCount [2]

PaUtilChannelDescriptor *	hostOutputChannels [2]

PaUtilTriangularDitherGenerator	ditherGenerator

double	samplePeriod

PaStreamCallback *	streamCallback

void *	userData

Detailed Description

The main buffer processor data structure.

Allocate one of these, initialize it with PaUtil_InitializeBufferProcessor and terminate it with PaUtil_TerminateBufferProcessor.

Field Documentation

◆ bytesPerHostInputSample

unsigned int PaUtilBufferProcessor::bytesPerHostInputSample

Referenced by PaUtil_CopyInput(), PaUtil_InitializeBufferProcessor(), PaUtil_Set2ndInterleavedInputChannels(), PaUtil_SetInterleavedInputChannels(), and ProcessingThreadProc().

◆ bytesPerHostOutputSample

unsigned int PaUtilBufferProcessor::bytesPerHostOutputSample

Referenced by PaUtil_CopyOutput(), PaUtil_InitializeBufferProcessor(), PaUtil_Set2ndInterleavedOutputChannels(), PaUtil_SetInterleavedOutputChannels(), PaUtil_ZeroOutput(), and ProcessingThreadProc().

◆ bytesPerUserInputSample

unsigned int PaUtilBufferProcessor::bytesPerUserInputSample

Referenced by PaUtil_CopyInput(), PaUtil_InitializeBufferProcessor(), and PaUtil_ResetBufferProcessor().

◆ bytesPerUserOutputSample

unsigned int PaUtilBufferProcessor::bytesPerUserOutputSample

Referenced by PaUtil_CopyOutput(), PaUtil_InitializeBufferProcessor(), and PaUtil_ResetBufferProcessor().

◆ callbackStatusFlags

PaStreamCallbackFlags PaUtilBufferProcessor::callbackStatusFlags

Referenced by PaUtil_BeginBufferProcessing().

◆ ditherGenerator

PaUtilTriangularDitherGenerator PaUtilBufferProcessor::ditherGenerator

Referenced by PaUtil_CopyInput(), PaUtil_CopyOutput(), and PaUtil_InitializeBufferProcessor().

◆ framesInTempInputBuffer

unsigned long PaUtilBufferProcessor::framesInTempInputBuffer

frames remaining in input buffer from previous adaption iteration

Referenced by PaUtil_BeginBufferProcessing(), PaUtil_InitializeBufferProcessor(), and PaUtil_ResetBufferProcessor().

◆ framesInTempOutputBuffer

unsigned long PaUtilBufferProcessor::framesInTempOutputBuffer

frames remaining in input buffer from previous adaption iteration

Referenced by PaUtil_BeginBufferProcessing(), PaUtil_InitializeBufferProcessor(), PaUtil_IsBufferProcessorOutputEmpty(), and PaUtil_ResetBufferProcessor().

◆ framesPerHostBuffer

unsigned long PaUtilBufferProcessor::framesPerHostBuffer

Referenced by PaUtil_InitializeBufferProcessor(), PaUtil_SetInputFrameCount(), PaUtil_SetOutputFrameCount(), and ProcessingThreadProc().

◆ framesPerTempBuffer

unsigned long PaUtilBufferProcessor::framesPerTempBuffer

Referenced by PaUtil_InitializeBufferProcessor(), and PaUtil_ResetBufferProcessor().

◆ framesPerUserBuffer

unsigned long PaUtilBufferProcessor::framesPerUserBuffer

Referenced by PaUtil_InitializeBufferProcessor().

◆ hostBufferSizeMode

PaUtilHostBufferSizeMode PaUtilBufferProcessor::hostBufferSizeMode

Referenced by PaUtil_EndBufferProcessing(), and PaUtil_InitializeBufferProcessor().

◆ hostInputChannels

PaUtilChannelDescriptor* PaUtilBufferProcessor::hostInputChannels[2]

pointers to arrays of channel descriptors. pointers are NULL for half-duplex output processing. hostInputChannels[i].data is NULL when the caller calls PaUtil_SetNoInput()

Referenced by PaUtil_CopyInput(), PaUtil_EndBufferProcessing(), PaUtil_InitializeBufferProcessor(), PaUtil_Set2ndInputChannel(), PaUtil_Set2ndInterleavedInputChannels(), PaUtil_Set2ndNonInterleavedInputChannel(), PaUtil_SetInputChannel(), PaUtil_SetInterleavedInputChannels(), PaUtil_SetNoInput(), PaUtil_SetNonInterleavedInputChannel(), and PaUtil_TerminateBufferProcessor().

◆ hostInputFrameCount

unsigned long PaUtilBufferProcessor::hostInputFrameCount[2]

Referenced by PaUtil_BeginBufferProcessing(), PaUtil_CopyInput(), PaUtil_EndBufferProcessing(), PaUtil_Set2ndInputFrameCount(), and PaUtil_SetInputFrameCount().

◆ hostInputIsInterleaved

int PaUtilBufferProcessor::hostInputIsInterleaved

Referenced by PaUtil_InitializeBufferProcessor(), PaUtil_Set2ndInterleavedInputChannels(), PaUtil_Set2ndNonInterleavedInputChannel(), PaUtil_SetInterleavedInputChannels(), and PaUtil_SetNonInterleavedInputChannel().

◆ hostOutputChannels

PaUtilChannelDescriptor* PaUtilBufferProcessor::hostOutputChannels[2]

pointers to arrays of channel descriptors. pointers are NULL for half-duplex input processing. hostOutputChannels[i].data is NULL when the caller calls PaUtil_SetNoOutput()

Referenced by PaUtil_CopyOutput(), PaUtil_EndBufferProcessing(), PaUtil_InitializeBufferProcessor(), PaUtil_Set2ndOutputChannel(), PaUtil_SetNoOutput(), PaUtil_SetOutputChannel(), PaUtil_TerminateBufferProcessor(), and PaUtil_ZeroOutput().