alsa.c File Reference

#include <stdlib.h>
#include <lists/string_list.h>
#include <string/stdstring.h>
#include <alsa/asoundlib.h>
#include "../audio_driver.h"
#include "../../verbosity.h"

Include dependency graph for alsa.c:

Classes
struct	alsa

Macros
#define	BYTES_TO_FRAMES(bytes, frame_bits)   ((bytes) * 8 / frame_bits)
#define	FRAMES_TO_BYTES(frames, frame_bits)   ((frames) * frame_bits / 8)

Typedefs
typedef struct alsa	alsa_t

Functions
static bool	alsa_use_float (void *data)
static bool	find_float_format (snd_pcm_t *pcm, void *data)
static void *	alsa_init (const char *device, unsigned rate, unsigned latency, unsigned block_frames, unsigned *new_rate)
static ssize_t	alsa_write (void *data, const void *buf_, size_t size_)
static bool	alsa_alive (void *data)
static bool	alsa_stop (void *data)
static void	alsa_set_nonblock_state (void *data, bool state)
static bool	alsa_start (void *data, bool is_shutdown)
static void	alsa_free (void *data)
static size_t	alsa_write_avail (void *data)
static size_t	alsa_buffer_size (void *data)
static void *	alsa_device_list_new (void *data)
static void	alsa_device_list_free (void *data, void *array_list_data)

Variables
audio_driver_t	audio_alsa

Macro Definition Documentation

BYTES_TO_FRAMES

#define BYTES_TO_FRAMES	(		bytes,
			frame_bits
	)		((bytes) * 8 / frame_bits)

FRAMES_TO_BYTES

#define FRAMES_TO_BYTES	(		frames,
			frame_bits
	)		((frames) * frame_bits / 8)

Typedef Documentation

alsa_t

typedef struct alsa alsa_t

Function Documentation

alsa_alive()

static bool alsa_alive ( void *  data )

static

alsa_buffer_size()

static size_t alsa_buffer_size ( void *  data )

static

alsa_device_list_free()

static void alsa_device_list_free ( void *  data, void *  array_list_data  )

static

Here is the call graph for this function:

alsa_device_list_new()

static void* alsa_device_list_new ( void *  data )

static

Here is the call graph for this function:

alsa_free()

static void alsa_free ( void *  data )

static

Here is the call graph for this function:

alsa_init()

static void* alsa_init ( const char *  device, unsigned  rate, unsigned  latency, unsigned  block_frames, unsigned *  new_rate  )

static

Here is the call graph for this function:

alsa_set_nonblock_state()

static void alsa_set_nonblock_state ( void *  data, bool  state  )

static

alsa_start()

static bool alsa_start ( void *  data, bool  is_shutdown  )

static

Here is the call graph for this function:

alsa_stop()

static bool alsa_stop ( void *  data )

static

alsa_use_float()

static bool alsa_use_float ( void *  data )

static

alsa_write()

static ssize_t alsa_write ( void *  data, const void *  buf_, size_t  size_  )

static

alsa_write_avail()

static size_t alsa_write_avail ( void *  data )

static

find_float_format()

static bool find_float_format ( snd_pcm_t *  pcm, void *  data  )

static

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

audio_alsa

audio_driver_t audio_alsa

Initial value:

= {
   alsa_init,
   alsa_write,
   alsa_stop,
   alsa_start,
   alsa_alive,
   alsa_set_nonblock_state,
   alsa_free,
   alsa_use_float,
   "alsa",
   alsa_device_list_new,
   alsa_device_list_free,
   alsa_write_avail,
   alsa_buffer_size,
}