pa_linux_pulseaudio_cb.c File Reference

PulseAudio implementation of support for a host API. More...

#include "pa_util.h"
#include "pa_allocation.h"
#include "pa_hostapi.h"
#include "pa_stream.h"
#include "pa_cpuload.h"
#include "pa_process.h"
#include "pa_unix_util.h"
#include "pa_ringbuffer.h"
#include "pa_linux_pulseaudio_cb_internal.h"
#include <string.h>
#include <unistd.h>

Functions
int	PaPulseAudio_updateTimeInfo (pa_stream *s, PaStreamCallbackTimeInfo *timeInfo, int record)
void	PaPulseAudio_ReleaseOperation (PaPulseAudio_HostApiRepresentation *hostapi, pa_operation **operation)
void	PaPulseAudio_Lock (pa_threaded_mainloop *mainloop)
void	PaPulseAudio_UnLock (pa_threaded_mainloop *mainloop)
void	_PaPulseAudio_WriteRingBuffer (PaUtilRingBuffer *ringbuffer, const void *buffer, size_t length)
void	_PaPulseAudio_Read (PaPulseAudio_Stream *stream, size_t length)
void	PaPulseAudio_StreamRecordCb (pa_stream *s, size_t length, void *userdata)
void	PaPulseAudio_StreamPlaybackCb (pa_stream *s, size_t length, void *userdata)
void	PaPulseAudio_StreamStartedCb (pa_stream *stream, void *userdata)
PaError	PaPulseAudio_CloseStreamCb (PaStream *s)
PaError	_PaPulseAudio_WaitStreamState (pa_threaded_mainloop *mainloop, pa_stream *stream)
PaError	PaPulseAudio_StartStreamCb (PaStream *s)
PaError	PaPulseAudio_StopStreamCb (PaStream *s)
PaError	PaPulseAudio_AbortStreamCb (PaStream *s)

Detailed Description

PulseAudio implementation of support for a host API.

This host API implements PulseAudio support for portaudio it has callback mode and normal write mode support

Function Documentation

void _PaPulseAudio_Read	(	PaPulseAudio_Stream *	stream,
		size_t	length
	)

References _PaPulseAudio_WriteRingBuffer(), PaPulseAudio_Stream::inputRing, PaPulseAudio_Stream::inputStream, and PA_DEBUG.

Referenced by PaPulseAudio_StreamRecordCb().

PaError _PaPulseAudio_WaitStreamState	(	pa_threaded_mainloop *	mainloop,
		pa_stream *	stream
	)

References PA_DEBUG, paNoError, paNotInitialized, PaPulseAudio_Lock(), and PaPulseAudio_UnLock().

Referenced by PaPulseAudio_StartStreamCb().

void _PaPulseAudio_WriteRingBuffer	(	PaUtilRingBuffer *	ringbuffer,
		const void *	buffer,
		size_t	length
	)

References PaUtil_GetRingBufferWriteAvailable(), PaUtil_ReadRingBuffer(), PaUtil_WriteRingBuffer(), and PULSEAUDIO_BUFFER_SIZE.

Referenced by _PaPulseAudio_Read().

PaError PaPulseAudio_AbortStreamCb

(

PaStream *

s

)

Referenced by PaPulseAudio_Initialize(), and PaPulseAudio_StartStreamCb().

PaError PaPulseAudio_CloseStreamCb

(

PaStream *

s

)

References PaPulseAudio_Stream::bufferProcessor, PaPulseAudio_Stream::hostapi, PaPulseAudio_Stream::inputStream, PaPulseAudio_Stream::inputStreamName, PaPulseAudio_Stream::isActive, PaPulseAudio_Stream::isStopped, PaPulseAudio_Stream::mainloop, PaPulseAudio_Stream::outputStream, PaPulseAudio_Stream::outputStreamName, paNoError, PaPulseAudio_Lock(), PaPulseAudio_ReleaseOperation(), PaPulseAudio_UnLock(), PaUtil_FreeMemory(), PaUtil_TerminateBufferProcessor(), PaUtil_TerminateStreamRepresentation(), PaPulseAudio_Stream::pulseaudioIsActive, PaPulseAudio_Stream::pulseaudioIsStopped, and PaPulseAudio_Stream::streamRepresentation.

Referenced by PaPulseAudio_Initialize().

void PaPulseAudio_Lock

(

pa_threaded_mainloop *

mainloop

)

References PA_DEBUG.

Referenced by _PaPulseAudio_WaitStreamState(), GetStreamTime(), OpenStream(), PaPulseAudio_CloseStreamCb(), PaPulseAudio_Initialize(), PaPulseAudio_ReadStreamBlock(), PaPulseAudio_ReleaseOperation(), PaPulseAudio_RenameSink(), PaPulseAudio_RenameSource(), PaPulseAudio_StartStreamCb(), PaPulseAudio_WriteStreamBlock(), and Terminate().

void PaPulseAudio_ReleaseOperation	(	PaPulseAudio_HostApiRepresentation *	hostapi,
		pa_operation **	operation
	)

References PaPulseAudio_HostApiRepresentation::mainloop, PA_DEBUG, PaPulseAudio_Lock(), and PaPulseAudio_UnLock().

Referenced by PaPulseAudio_CloseStreamCb(), PaPulseAudio_Initialize(), PaPulseAudio_RenameSink(), PaPulseAudio_RenameSource(), and PaPulseAudio_StartStreamCb().

PaError PaPulseAudio_StartStreamCb

(

PaStream *

s

)

References _PaPulseAudio_WaitStreamState(), PaPulseAudio_Stream::bufferProcessor, PaHostApiInfo::defaultInputDevice, PaHostApiInfo::defaultOutputDevice, PaPulseAudio_Stream::hostapi, PaUtilHostApiRepresentation::info, PaPulseAudio_HostApiRepresentation::inheritedHostApiRep, PaPulseAudio_Stream::inputBufferAttr, PaPulseAudio_Stream::inputDevice, PaPulseAudio_Stream::inputSampleSpec, PaPulseAudio_Stream::inputStream, PaPulseAudio_Stream::isActive, PaPulseAudio_Stream::isStopped, PaPulseAudio_HostApiRepresentation::mainloop, PaPulseAudio_Stream::missedBytes, PaPulseAudio_Stream::outputBufferAttr, PaPulseAudio_Stream::outputDevice, PaPulseAudio_Stream::outputSampleSpec, PaPulseAudio_Stream::outputStream, PaPulseAudio_Stream::outputUnderflows, PA_DEBUG, paNoDevice, paNoError, paNotInitialized, PaPulseAudio_AbortStreamCb(), PaPulseAudio_Lock(), PaPulseAudio_ReleaseOperation(), PaPulseAudio_StreamPlaybackCb(), PaPulseAudio_StreamRecordCb(), PaPulseAudio_UnLock(), PaUtil_DeviceIndexToHostApiDeviceIndex(), PaUtil_ResetBufferProcessor(), PaPulseAudio_HostApiRepresentation::pulseaudioDeviceNames, PaPulseAudio_Stream::pulseaudioIsActive, PaPulseAudio_Stream::pulseaudioIsStopped, and PaPulseAudio_Stream::suggestedLatencyUSecs.

Referenced by PaPulseAudio_Initialize().

PaError PaPulseAudio_StopStreamCb

(

PaStream *

s

)

Referenced by PaPulseAudio_Initialize().

void PaPulseAudio_StreamPlaybackCb	(	pa_stream *	s,
		size_t	length,
		void *	userdata
	)

References PaPulseAudio_Stream::bufferProcessor, PaPulseAudio_Stream::mainloop, and PaUtilBufferProcessor::streamCallback.

Referenced by PaPulseAudio_StartStreamCb().

void PaPulseAudio_StreamRecordCb	(	pa_stream *	s,
		size_t	length,
		void *	userdata
	)

References _PaPulseAudio_Read(), PaPulseAudio_Stream::bufferProcessor, PaPulseAudio_Stream::mainloop, and PaUtilBufferProcessor::streamCallback.

Referenced by PaPulseAudio_StartStreamCb().

void PaPulseAudio_StreamStartedCb	(	pa_stream *	stream,
		void *	userdata
	)

References PaPulseAudio_Stream::mainloop.

Referenced by OpenStream().

void PaPulseAudio_UnLock

(

pa_threaded_mainloop *

mainloop

)

References PA_DEBUG.

Referenced by _PaPulseAudio_WaitStreamState(), GetStreamTime(), OpenStream(), PaPulseAudio_CloseStreamCb(), PaPulseAudio_Initialize(), PaPulseAudio_ReadStreamBlock(), PaPulseAudio_ReleaseOperation(), PaPulseAudio_RenameSink(), PaPulseAudio_RenameSource(), PaPulseAudio_StartStreamCb(), PaPulseAudio_WriteStreamBlock(), and Terminate().

int PaPulseAudio_updateTimeInfo	(	pa_stream *	s,
		PaStreamCallbackTimeInfo *	timeInfo,
		int	record
	)

References PaStreamCallbackTimeInfo::currentTime, PaStreamCallbackTimeInfo::inputBufferAdcTime, and PaStreamCallbackTimeInfo::outputBufferDacTime.

Referenced by GetStreamTime().