pa_mac_core_blocking.h File Reference

#include "pa_ringbuffer.h"
#include "portaudio.h"
#include "pa_mac_core_utilities.h"

Go to the source code of this file.

Data Structures
struct	PaMacBlio

Macros
#define	PA_MAC_BLIO_BUSY_WAIT_SLEEP_INTERVAL   (5)
#define	PA_MAC_BLIO_BUSY_WAIT

Functions
PaError	initializeBlioRingBuffers (PaMacBlio *blio, PaSampleFormat inputSampleFormat, PaSampleFormat outputSampleFormat, long ringBufferSizeInFrames, int inChan, int outChan)
PaError	destroyBlioRingBuffers (PaMacBlio *blio)
PaError	resetBlioRingBuffers (PaMacBlio *blio)
int	BlioCallback (const void *input, void *output, unsigned long frameCount, const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags, void *userData)
PaError	waitUntilBlioWriteBufferIsEmpty (PaMacBlio *blio, double sampleRate, size_t framesPerBuffer)

Macro Definition Documentation

PA_MAC_BLIO_BUSY_WAIT

#define PA_MAC_BLIO_BUSY_WAIT

PA_MAC_BLIO_BUSY_WAIT_SLEEP_INTERVAL

#define PA_MAC_BLIO_BUSY_WAIT_SLEEP_INTERVAL   (5)

Referenced by ReadStream(), and WriteStream().

Function Documentation

BlioCallback()

int BlioCallback	(	const void *	input,
		void *	output,
		unsigned long	frameCount,
		const PaStreamCallbackTimeInfo *	timeInfo,
		PaStreamCallbackFlags	statusFlags,
		void *	userData )

References PaMacBlio::inChan, PaMacBlio::inputRingBuffer, PaMacBlio::outChan, PaMacBlio::outputRingBuffer, PaMacBlio::outputSampleSizeActual, paContinue, paInputOverflow, paOutputUnderflow, PaUtil_GetRingBufferReadAvailable(), PaUtil_GetRingBufferWriteAvailable(), PaUtil_ReadRingBuffer(), PaUtil_WriteRingBuffer(), and PaMacBlio::statusFlags.

destroyBlioRingBuffers()

PaError destroyBlioRingBuffers

(

PaMacBlio *

blio

)

References PaUtilRingBuffer::buffer, PaMacBlio::inputRingBuffer, PaMacBlio::outputRingBuffer, paNoError, and UNIX_ERR.

Referenced by initializeBlioRingBuffers().

initializeBlioRingBuffers()

PaError initializeBlioRingBuffers	(	PaMacBlio *	blio,
		PaSampleFormat	inputSampleFormat,
		PaSampleFormat	outputSampleFormat,
		long	ringBufferSizeInFrames,
		int	inChan,
		int	outChan )

This should be called with the relevant info when initializing a stream for callback.

Parameters

ringBufferSizeInFrames

must be a power of 2

References PaUtilRingBuffer::buffer, destroyBlioRingBuffers(), PaMacBlio::errors, PaMacBlio::inChan, PaMacBlio::inputRingBuffer, PaMacBlio::inputSampleFormat, PaMacBlio::inputSampleSizeActual, PaMacBlio::inputSampleSizePow2, PaMacBlio::outChan, PaMacBlio::outputRingBuffer, PaMacBlio::outputSampleFormat, PaMacBlio::outputSampleSizeActual, PaMacBlio::outputSampleSizePow2, paInsufficientMemory, PaMacCore_SetUnixError(), paNoError, PaUtil_InitializeRingBuffer(), resetBlioRingBuffers(), PaMacBlio::ringBufferFrames, PaMacBlio::statusFlags, and UNIX_ERR.

resetBlioRingBuffers()

PaError resetBlioRingBuffers

(

PaMacBlio *

blio

)

References PaUtilRingBuffer::buffer, PaUtilRingBuffer::bufferSize, PaUtilRingBuffer::elementSizeBytes, PaMacBlio::inputRingBuffer, PaMacBlio::outputRingBuffer, paNoError, PaUtil_AdvanceRingBufferWriteIndex(), PaUtil_FlushRingBuffer(), PaMacBlio::ringBufferFrames, and PaMacBlio::statusFlags.

Referenced by initializeBlioRingBuffers().

waitUntilBlioWriteBufferIsEmpty()

PaError waitUntilBlioWriteBufferIsEmpty	(	PaMacBlio *	blio,
		double	sampleRate,
		size_t	framesPerBuffer )

References PaUtilRingBuffer::buffer, PaMacBlio::outputRingBuffer, Pa_Sleep(), paNoError, paTimedOut, PaUtil_GetRingBufferReadAvailable(), PaUtil_GetTime(), and VDBUG.