PulseAudio driver. More...

#include <PulseAudioDriver.h>

Inheritance diagram for PulseAudioDriver:

Public Member Functions
	PulseAudioDriver (audioProcessCallback processCallback)

	~PulseAudioDriver ()

virtual int	connect () override

virtual void	disconnect () override

virtual unsigned	getBufferSize () override

virtual float *	getOut_L () override

virtual float *	getOut_R () override

virtual unsigned	getSampleRate () override

virtual int	init (unsigned nBufferSize) override

Public Member Functions inherited from Object< PulseAudioDriver >
	Object ()

	Object (const Object< PulseAudioDriver > &other)

Public Member Functions inherited from Base
	Base ()

	Base (const Base &other)

virtual const char *	class_name () const

void	logBacktrace () const
	Print the current stack at point into the debug log.

void	Print (bool bShort=true) const
	Prints content of toQString() via DEBUGLOG.

virtual QString	toQString (const QString &sPrefix="", bool bShort=true) const
	Formatted string version for debugging purposes.

Public Member Functions inherited from AudioOutput
	AudioOutput ()=default

virtual	~AudioOutput ()

virtual int	getLatency ()
	Approximate audio latency (in frames) A reasonable approximation is the buffer time on most audio systems.

virtual int	getXRuns () const
	Get the number of XRuns that occurred since the audio driver has started.

Public Member Functions inherited from Object< AudioOutput >
	Object ()

	Object (const Object< AudioOutput > &other)

Private Member Functions
int	thread_body ()

Static Private Member Functions
static void	ctx_state_callback (pa_context ctx, void udata)

static void	pipe_callback (pa_mainloop_api , pa_io_event , int fd, pa_io_event_flags_t events, void *udata)

static void *	s_thread_body (void *)

static void	stream_state_callback (pa_stream stream, void udata)

static void	stream_write_callback (pa_stream stream, size_t bytes, void udata)

Private Attributes
unsigned	m_buffer_size

audioProcessCallback	m_callback

pthread_cond_t	m_cond

bool	m_connected

pa_context *	m_ctx

pa_mainloop *	m_main_loop

pthread_mutex_t	m_mutex

float *	m_outL

float *	m_outR

int	m_pipe [2]
	File descriptors used to write data to (m_pipe[1]) and read data from (m_pipe[0]) the pipe.

int	m_ready

unsigned	m_sample_rate

pa_stream *	m_stream

pthread_t	m_thread

Additional Inherited Members
Static Public Member Functions inherited from Base
static const char *	_class_name ()
	return the class name

static QString	base_clock (const QString &sMsg)
	Measures the current time and stores it in __last_clock.

static QString	base_clock_in (const QString &sMsg)

static int	bootstrap (Logger *logger, bool count=false)
	must be called before any Object instantiation !

static bool	count_active ()

static int	getAliveObjectCount ()

static object_map_t	getObjectMap ()

static Logger *	logger ()
	return the logger instance

static int	objects_count ()

static void	printObjectMapDiff (object_map_t map)
	Creates the difference between a snapshot of the object map and its current state and prints it to std::cout.

static void	set_count (bool flag)
	enable/disable class instances counting

static void	write_objects_map_to (std::ostream &out, object_map_t *map=nullptr)
	output the full objects map to a given ostream

static void	write_objects_map_to_cerr ()
	output objects map to stderr

Static Public Member Functions inherited from AudioOutput
static QStringList	getDevices ()

Static Public Attributes inherited from Base
static QString	sPrintIndention = " "
	String used to format the debugging string output of some core classes.

Protected Member Functions inherited from Object< PulseAudioDriver >
	~Object ()

Protected Member Functions inherited from Base
	~Base ()

Protected Member Functions inherited from Object< AudioOutput >
	~Object ()

Static Protected Member Functions inherited from Base
static void	registerClass (const char name, const atomic_obj_cpt_t counters)

Static Protected Attributes inherited from Base
static bool	__count = false
	should we count class instances

static timeval	__last_clock = { 0, 0 }

static Logger *	__logger = nullptr

static bool	bLogColors = true

Detailed Description

PulseAudio driver.

Definition at line 42 of file PulseAudioDriver.h.

Constructor & Destructor Documentation

◆ PulseAudioDriver()

PulseAudioDriver ( audioProcessCallback processCallback )

Definition at line 34 of file PulseAudioDriver.cpp.

◆ ~PulseAudioDriver()

~PulseAudioDriver ( )

Definition at line 49 of file PulseAudioDriver.cpp.

Member Function Documentation

◆ connect()

int connect ( )

overridevirtual

Implements AudioOutput.

Definition at line 70 of file PulseAudioDriver.cpp.

◆ ctx_state_callback()

void ctx_state_callback	(	pa_context *	ctx,
		void *	udata )

staticprivate

Definition at line 196 of file PulseAudioDriver.cpp.

◆ disconnect()

void disconnect ( )

overridevirtual

Implements AudioOutput.

Definition at line 113 of file PulseAudioDriver.cpp.

◆ getBufferSize()

unsigned getBufferSize ( )

overridevirtual

Implements AudioOutput.

Definition at line 128 of file PulseAudioDriver.cpp.

◆ getOut_L()

float * getOut_L ( )

overridevirtual

Implements AudioOutput.

Definition at line 140 of file PulseAudioDriver.cpp.

◆ getOut_R()

float * getOut_R ( )

overridevirtual

Implements AudioOutput.

Definition at line 146 of file PulseAudioDriver.cpp.

◆ getSampleRate()

unsigned getSampleRate ( )

overridevirtual

Implements AudioOutput.

Definition at line 134 of file PulseAudioDriver.cpp.

◆ init()

int init ( unsigned nBufferSize )

overridevirtual

Implements AudioOutput.

Definition at line 58 of file PulseAudioDriver.cpp.

◆ pipe_callback()

void pipe_callback	(	pa_mainloop_api *	,
		pa_io_event *	,
		int	fd,
		pa_io_event_flags_t	events,
		void *	udata )

staticprivate

Definition at line 269 of file PulseAudioDriver.cpp.

◆ s_thread_body()

void * s_thread_body ( void * arg )

staticprivate

Definition at line 151 of file PulseAudioDriver.cpp.

◆ stream_state_callback()

void stream_state_callback	(	pa_stream *	stream,
		void *	udata )

staticprivate

Definition at line 223 of file PulseAudioDriver.cpp.

◆ stream_write_callback()

void stream_write_callback	(	pa_stream *	stream,
		size_t	bytes,
		void *	udata )

staticprivate

Definition at line 240 of file PulseAudioDriver.cpp.

◆ thread_body()

int thread_body ( )

private

Definition at line 167 of file PulseAudioDriver.cpp.

Field Documentation

◆ m_buffer_size

unsigned m_buffer_size

private

Definition at line 71 of file PulseAudioDriver.h.

◆ m_callback

audioProcessCallback m_callback

private

Definition at line 64 of file PulseAudioDriver.h.

◆ m_cond

pthread_cond_t m_cond

private

Definition at line 60 of file PulseAudioDriver.h.

◆ m_connected

bool m_connected

private

Definition at line 68 of file PulseAudioDriver.h.

◆ m_ctx

pa_context* m_ctx

private

Definition at line 66 of file PulseAudioDriver.h.

◆ m_main_loop

pa_mainloop* m_main_loop

private

Definition at line 65 of file PulseAudioDriver.h.

◆ m_mutex

pthread_mutex_t m_mutex

private

Definition at line 59 of file PulseAudioDriver.h.

◆ m_outL

float* m_outL

private

Definition at line 72 of file PulseAudioDriver.h.

◆ m_outR

float* m_outR

private

Definition at line 73 of file PulseAudioDriver.h.

◆ m_pipe

int m_pipe[2]

private

File descriptors used to write data to (m_pipe[1]) and read data from (m_pipe[0]) the pipe.

Definition at line 63 of file PulseAudioDriver.h.

◆ m_ready

int m_ready

private

Definition at line 69 of file PulseAudioDriver.h.

◆ m_sample_rate

unsigned m_sample_rate

private

Definition at line 70 of file PulseAudioDriver.h.

◆ m_stream

pa_stream* m_stream

private

Definition at line 67 of file PulseAudioDriver.h.

◆ m_thread

pthread_t m_thread

private

Definition at line 58 of file PulseAudioDriver.h.

Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ PulseAudioDriver()

◆ ~PulseAudioDriver()

Member Function Documentation

◆ connect()

◆ ctx_state_callback()

◆ disconnect()

◆ getBufferSize()

◆ getOut_L()

◆ getOut_R()

◆ getSampleRate()

◆ init()

◆ pipe_callback()

◆ s_thread_body()

◆ stream_state_callback()

◆ stream_write_callback()

◆ thread_body()

Field Documentation

◆ m_buffer_size

◆ m_callback

◆ m_cond

◆ m_connected

◆ m_ctx

◆ m_main_loop

◆ m_mutex

◆ m_outL

◆ m_outR

◆ m_pipe

◆ m_ready

◆ m_sample_rate

◆ m_stream

◆ m_thread