ARDOUR::AlsaAudioSlave Class Reference

#include <alsa_slave.h>

Inheritance diagram for ARDOUR::AlsaAudioSlave:

Public Member Functions
	AlsaAudioSlave (const char *play_name, const char *capt_name, unsigned int master_rate, unsigned int master_samples_per_period, unsigned int slave_rate, unsigned int slave_samples_per_period, unsigned int periods_per_cycle)
virtual	~AlsaAudioSlave ()
bool	start ()
void	stop ()
void	cycle_start (double, double, bool)
void	cycle_end ()
uint32_t	capt_chan (uint32_t chn, float *dst, uint32_t n_samples)
uint32_t	play_chan (uint32_t chn, float *src, uint32_t n_samples)
bool	running () const
void	freewheel (bool)
int	state (void) const
uint32_t	nplay (void) const
uint32_t	ncapt (void) const

Public Attributes
PBD::Signal< void()>	Halted

Protected Member Functions
virtual void	update_latencies (uint32_t, uint32_t)=0

Private Member Functions
void *	process_thread ()

Static Private Member Functions
static void *	_process_thread (void *)
static void	reset_resampler (ArdourZita::VResampler &)

Private Attributes
Alsa_pcmi	_pcmi
pthread_t	_thread
bool	_run
bool	_active
double	_t0
double	_t1
uint64_t	_samples_since_dll_reset
double	_ratio
uint32_t	_capt_latency
double	_play_latency
volatile double	_slave_speed
std::atomic< int >	_draining
PBD::RingBuffer< float >	_rb_capture
PBD::RingBuffer< float >	_rb_playback
size_t	_samples_per_period
float *	_capt_buff
float *	_play_buff
float *	_src_buff
ArdourZita::VResampler	_src_capt
ArdourZita::VResampler	_src_play

Detailed Description

Definition at line 34 of file alsa_slave.h.

Constructor & Destructor Documentation

AlsaAudioSlave()

ARDOUR::AlsaAudioSlave::AlsaAudioSlave	(	const char *	play_name,
		const char *	capt_name,
		unsigned int	master_rate,
		unsigned int	master_samples_per_period,
		unsigned int	slave_rate,
		unsigned int	slave_samples_per_period,
		unsigned int	periods_per_cycle
	)

~AlsaAudioSlave()

virtual ARDOUR::AlsaAudioSlave::~AlsaAudioSlave ( )

virtual

Member Function Documentation

_process_thread()

static void* ARDOUR::AlsaAudioSlave::_process_thread ( void *  )

staticprivate

capt_chan()

uint32_t ARDOUR::AlsaAudioSlave::capt_chan	(	uint32_t	chn,
		float *	dst,
		uint32_t	n_samples
	)

cycle_end()

void ARDOUR::AlsaAudioSlave::cycle_end

(

)

cycle_start()

void ARDOUR::AlsaAudioSlave::cycle_start	(	double	,
		double	,
		bool
	)

freewheel()

void ARDOUR::AlsaAudioSlave::freewheel

(

bool

)

ncapt()

uint32_t ARDOUR::AlsaAudioSlave::ncapt ( void  ) const

inline

Definition at line 62 of file alsa_slave.h.

nplay()

uint32_t ARDOUR::AlsaAudioSlave::nplay ( void  ) const

inline

Definition at line 61 of file alsa_slave.h.

play_chan()

uint32_t ARDOUR::AlsaAudioSlave::play_chan	(	uint32_t	chn,
		float *	src,
		uint32_t	n_samples
	)

process_thread()

void* ARDOUR::AlsaAudioSlave::process_thread ( )

private

reset_resampler()

static void ARDOUR::AlsaAudioSlave::reset_resampler ( ArdourZita::VResampler &  )

staticprivate

running()

bool ARDOUR::AlsaAudioSlave::running ( ) const

inline

Definition at line 57 of file alsa_slave.h.

start()

bool ARDOUR::AlsaAudioSlave::start

(

)

state()

int ARDOUR::AlsaAudioSlave::state ( void  ) const

inline

Definition at line 60 of file alsa_slave.h.

stop()

void ARDOUR::AlsaAudioSlave::stop

(

)

update_latencies()

virtual void ARDOUR::AlsaAudioSlave::update_latencies ( uint32_t  , uint32_t    )

protectedpure virtual

Implemented in ARDOUR::AlsaAudioBackend::AudioSlave.

Member Data Documentation

_active

bool ARDOUR::AlsaAudioSlave::_active

private

Definition at line 77 of file alsa_slave.h.

_capt_buff

float* ARDOUR::AlsaAudioSlave::_capt_buff

private

Definition at line 96 of file alsa_slave.h.

_capt_latency

uint32_t ARDOUR::AlsaAudioSlave::_capt_latency

private

Definition at line 84 of file alsa_slave.h.

_draining

std::atomic<int> ARDOUR::AlsaAudioSlave::_draining

private

Definition at line 89 of file alsa_slave.h.

_pcmi

Alsa_pcmi ARDOUR::AlsaAudioSlave::_pcmi

private

Definition at line 70 of file alsa_slave.h.

_play_buff

float* ARDOUR::AlsaAudioSlave::_play_buff

private

Definition at line 97 of file alsa_slave.h.

_play_latency

double ARDOUR::AlsaAudioSlave::_play_latency

private

Definition at line 85 of file alsa_slave.h.

_ratio

double ARDOUR::AlsaAudioSlave::_ratio

private

Definition at line 83 of file alsa_slave.h.

_rb_capture

PBD::RingBuffer<float> ARDOUR::AlsaAudioSlave::_rb_capture

private

Definition at line 91 of file alsa_slave.h.

_rb_playback

PBD::RingBuffer<float> ARDOUR::AlsaAudioSlave::_rb_playback

private

Definition at line 92 of file alsa_slave.h.

_run

bool ARDOUR::AlsaAudioSlave::_run

private

Definition at line 76 of file alsa_slave.h.

_samples_per_period

size_t ARDOUR::AlsaAudioSlave::_samples_per_period

private

Definition at line 94 of file alsa_slave.h.

_samples_since_dll_reset

uint64_t ARDOUR::AlsaAudioSlave::_samples_since_dll_reset

private

Definition at line 81 of file alsa_slave.h.

_slave_speed

volatile double ARDOUR::AlsaAudioSlave::_slave_speed

private

Definition at line 87 of file alsa_slave.h.

_src_buff

float* ARDOUR::AlsaAudioSlave::_src_buff

private

Definition at line 98 of file alsa_slave.h.

_src_capt

ArdourZita::VResampler ARDOUR::AlsaAudioSlave::_src_capt

private

Definition at line 100 of file alsa_slave.h.

_src_play

ArdourZita::VResampler ARDOUR::AlsaAudioSlave::_src_play

private

Definition at line 101 of file alsa_slave.h.

_t0

double ARDOUR::AlsaAudioSlave::_t0

private

Definition at line 80 of file alsa_slave.h.

_t1

double ARDOUR::AlsaAudioSlave::_t1

private

Definition at line 80 of file alsa_slave.h.

_thread

pthread_t ARDOUR::AlsaAudioSlave::_thread

private

Definition at line 74 of file alsa_slave.h.

Halted

PBD::Signal<void()> ARDOUR::AlsaAudioSlave::Halted

Definition at line 64 of file alsa_slave.h.

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The documentation for this class was generated from the following file:

• alsa_slave.h