pa_mac_core_utilities.c File Reference

#include "pa_mac_core_utilities.h"
#include "pa_mac_core_internal.h"
#include <libkern/OSAtomic.h>
#include <strings.h>
#include <pthread.h>
#include <sys/time.h>

Data Structures
struct	PaMacXRunListNode_s

Typedefs
typedef struct PaMacXRunListNode_s	PaMacXRunListNode

Functions
OSStatus	PaMacCore_AudioHardwareGetProperty (AudioHardwarePropertyID inPropertyID, UInt32 *ioPropertyDataSize, void *outPropertyData)
OSStatus	PaMacCore_AudioHardwareGetPropertySize (AudioHardwarePropertyID inPropertyID, UInt32 *outSize)
OSStatus	PaMacCore_AudioDeviceGetProperty (AudioDeviceID inDevice, UInt32 inChannel, Boolean isInput, AudioDevicePropertyID inPropertyID, UInt32 *ioPropertyDataSize, void *outPropertyData)
OSStatus	PaMacCore_AudioDeviceSetProperty (AudioDeviceID inDevice, const AudioTimeStamp *inWhen, UInt32 inChannel, Boolean isInput, AudioDevicePropertyID inPropertyID, UInt32 inPropertyDataSize, const void *inPropertyData)
OSStatus	PaMacCore_AudioDeviceGetPropertySize (AudioDeviceID inDevice, UInt32 inChannel, Boolean isInput, AudioDevicePropertyID inPropertyID, UInt32 *outSize)
OSStatus	PaMacCore_AudioDeviceAddPropertyListener (AudioDeviceID inDevice, UInt32 inChannel, Boolean isInput, AudioDevicePropertyID inPropertyID, AudioObjectPropertyListenerProc inProc, void *inClientData)
OSStatus	PaMacCore_AudioDeviceRemovePropertyListener (AudioDeviceID inDevice, UInt32 inChannel, Boolean isInput, AudioDevicePropertyID inPropertyID, AudioObjectPropertyListenerProc inProc, void *inClientData)
OSStatus	PaMacCore_AudioStreamGetProperty (AudioStreamID inStream, UInt32 inChannel, AudioDevicePropertyID inPropertyID, UInt32 *ioPropertyDataSize, void *outPropertyData)
PaError	PaMacCore_SetUnixError (int err, int line)
PaError	PaMacCore_SetError (OSStatus error, int line, int isError)
long	computeRingBufferSize (const PaStreamParameters *inputParameters, const PaStreamParameters *outputParameters, long inputFramesPerBuffer, long outputFramesPerBuffer, double sampleRate)
OSStatus	propertyProc (AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses, void *inClientData)
PaError	AudioDeviceSetPropertyNowAndWaitForChange (AudioDeviceID inDevice, UInt32 inChannel, Boolean isInput, AudioDevicePropertyID inPropertyID, UInt32 inPropertyDataSize, const void *inPropertyData, void *outPropertyData)
PaError	setBestSampleRateForDevice (const AudioDeviceID device, const bool isOutput, const bool requireExact, const Float64 desiredSrate)
PaError	setBestFramesPerBuffer (const AudioDeviceID device, const bool isOutput, UInt32 requestedFramesPerBuffer, UInt32 *actualFramesPerBuffer)
OSStatus	xrunCallback (AudioObjectID inDevice, UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses, void *inClientData)
int	initializeXRunListenerList (void)
int	destroyXRunListenerList (void)
void *	addToXRunListenerList (void *stream)
int	removeFromXRunListenerList (void *stream)

Typedef Documentation

PaMacXRunListNode

typedef struct PaMacXRunListNode_s PaMacXRunListNode

Function Documentation

addToXRunListenerList()

void * addToXRunListenerList

(

void *

stream

)

Returns the list, so that it can be passed to CorAudio.

References PaMacXRunListNode_s::next, and PaMacXRunListNode_s::stream.

AudioDeviceSetPropertyNowAndWaitForChange()

PaError AudioDeviceSetPropertyNowAndWaitForChange	(	AudioDeviceID	inDevice,
		UInt32	inChannel,
		Boolean	isInput,
		AudioDevicePropertyID	inPropertyID,
		UInt32	inPropertyDataSize,
		const void *	inPropertyData,
		void *	outPropertyData )

References DBUG, ERR, Pa_Sleep(), paInternalError, PaMacCore_AudioDeviceAddPropertyListener(), PaMacCore_AudioDeviceGetProperty(), PaMacCore_AudioDeviceRemovePropertyListener(), PaMacCore_AudioDeviceSetProperty(), paNoError, and propertyProc().

Referenced by setBestSampleRateForDevice().

computeRingBufferSize()

long computeRingBufferSize	(	const PaStreamParameters *	inputParameters,
		const PaStreamParameters *	outputParameters,
		long	inputFramesPerBuffer,
		long	outputFramesPerBuffer,
		double	sampleRate )

References MAX, PaStreamParameters::suggestedLatency, VDBUG, and VVDBUG.

destroyXRunListenerList()

int destroyXRunListenerList

(

void

)

returns zero on success or a unix style error code.

References PaMacXRunListNode_s::next.

initializeXRunListenerList()

int initializeXRunListenerList

(

void

)

returns zero on success or a unix style error code.

Referenced by PaMacCore_Initialize().

PaMacCore_AudioDeviceAddPropertyListener()

OSStatus PaMacCore_AudioDeviceAddPropertyListener	(	AudioDeviceID	inDevice,
		UInt32	inChannel,
		Boolean	isInput,
		AudioDevicePropertyID	inPropertyID,
		AudioObjectPropertyListenerProc	inProc,
		void *	inClientData )

Referenced by AudioDeviceSetPropertyNowAndWaitForChange().

PaMacCore_AudioDeviceGetProperty()

OSStatus PaMacCore_AudioDeviceGetProperty	(	AudioDeviceID	inDevice,
		UInt32	inChannel,
		Boolean	isInput,
		AudioDevicePropertyID	inPropertyID,
		UInt32 *	ioPropertyDataSize,
		void *	outPropertyData )

Referenced by AudioDeviceSetPropertyNowAndWaitForChange(), PaMacCore_GetBufferSizeRange(), PaMacCore_GetChannelName(), setBestFramesPerBuffer(), and setBestSampleRateForDevice().

PaMacCore_AudioDeviceGetPropertySize()

OSStatus PaMacCore_AudioDeviceGetPropertySize	(	AudioDeviceID	inDevice,
		UInt32	inChannel,
		Boolean	isInput,
		AudioDevicePropertyID	inPropertyID,
		UInt32 *	outSize )

Referenced by PaMacCore_GetChannelName(), and setBestSampleRateForDevice().

PaMacCore_AudioDeviceRemovePropertyListener()

OSStatus PaMacCore_AudioDeviceRemovePropertyListener	(	AudioDeviceID	inDevice,
		UInt32	inChannel,
		Boolean	isInput,
		AudioDevicePropertyID	inPropertyID,
		AudioObjectPropertyListenerProc	inProc,
		void *	inClientData )

Referenced by AudioDeviceSetPropertyNowAndWaitForChange().

PaMacCore_AudioDeviceSetProperty()

OSStatus PaMacCore_AudioDeviceSetProperty	(	AudioDeviceID	inDevice,
		const AudioTimeStamp *	inWhen,
		UInt32	inChannel,
		Boolean	isInput,
		AudioDevicePropertyID	inPropertyID,
		UInt32	inPropertyDataSize,
		const void *	inPropertyData )

Referenced by AudioDeviceSetPropertyNowAndWaitForChange(), and setBestFramesPerBuffer().

PaMacCore_AudioHardwareGetProperty()

OSStatus PaMacCore_AudioHardwareGetProperty	(	AudioHardwarePropertyID	inPropertyID,
		UInt32 *	ioPropertyDataSize,
		void *	outPropertyData )

PaMacCore_AudioHardwareGetPropertySize()

OSStatus PaMacCore_AudioHardwareGetPropertySize	(	AudioHardwarePropertyID	inPropertyID,
		UInt32 *	outSize )

PaMacCore_AudioStreamGetProperty()

OSStatus PaMacCore_AudioStreamGetProperty	(	AudioStreamID	inStream,
		UInt32	inChannel,
		AudioDevicePropertyID	inPropertyID,
		UInt32 *	ioPropertyDataSize,
		void *	outPropertyData )

PaMacCore_SetError()

PaError PaMacCore_SetError	(	OSStatus	error,
		int	line,
		int	isError )

References DBUG, paCoreAudio, paDeviceUnavailable, paInvalidDevice, paNoError, paSampleFormatNotSupported, paUnanticipatedHostError, and PaUtil_SetLastHostErrorInfo().

PaMacCore_SetUnixError()

PaError PaMacCore_SetUnixError	(	int	err,
		int	line )

Map Unix error to PaError. Pretty much the only one that maps is ENOMEM.

References DBUG, paCoreAudio, paInsufficientMemory, paInternalError, paNoError, and PaUtil_SetLastHostErrorInfo().

Referenced by initializeBlioRingBuffers().

propertyProc()

OSStatus propertyProc	(	AudioObjectID	inObjectID,
		UInt32	inNumberAddresses,
		const AudioObjectPropertyAddress *	inAddresses,
		void *	inClientData )

Referenced by AudioDeviceSetPropertyNowAndWaitForChange().

removeFromXRunListenerList()

int removeFromXRunListenerList

(

void *

stream

)

Returns the number of Listeners in the list remaining.

References PaMacXRunListNode_s::next, and PaMacXRunListNode_s::stream.

setBestFramesPerBuffer()

PaError setBestFramesPerBuffer	(	const AudioDeviceID	device,
		const bool	isOutput,
		UInt32	requestedFramesPerBuffer,
		UInt32 *	actualFramesPerBuffer )

References ERR, PaMacCore_AudioDeviceGetProperty(), PaMacCore_AudioDeviceSetProperty(), and paNoError.

setBestSampleRateForDevice()

PaError setBestSampleRateForDevice	(	const AudioDeviceID	device,
		const bool	isOutput,
		const bool	requireExact,
		const Float64	desiredSrate )

References AudioDeviceSetPropertyNowAndWaitForChange(), ERR, paInsufficientMemory, paInternalError, paInvalidSampleRate, PaMacCore_AudioDeviceGetProperty(), PaMacCore_AudioDeviceGetPropertySize(), paNoError, and VDBUG.

xrunCallback()

OSStatus xrunCallback	(	AudioObjectID	inDevice,
		UInt32	inNumberAddresses,
		const AudioObjectPropertyAddress *	inAddresses,
		void *	inClientData )

References PaMacCoreStream::inputDevice, PaMacXRunListNode_s::next, PaMacCoreStream::outputDevice, paInputOverflow, paOutputUnderflow, PaMacCoreStream::state, PaMacXRunListNode_s::stream, and PaMacCoreStream::xrunFlags.