vtest.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <alsa/asoundlib.h>

Go to the source code of this file.

Functions
void	busywait (double secs)
double	get_time (void)
int	main (int argc, char **argv)
static void	set_hwparams (snd_pcm_t *handle)
static void	set_swparams (snd_pcm_t *handle)
void	sound_init (void)
void	sound_play (unsigned char *buf, int size)
int	sound_step (void)
void	usage (void)
Variables
static int	buffer_size
int	dsp_fd
snd_pcm_t *	pcm
static int	period_size
unsigned char *	soundbuf
int	soundbuf_off
int	soundbuf_playing
int	soundbuf_size
int	soundbuf_used
int	xrun_count

---

Function Documentation

void busywait

(

double

secs

)

Definition at line 189 of file vtest.c.

References get_time().

double get_time

(

void

)

Definition at line 181 of file vtest.c.

int main	(	int	argc,
		char **	argv
	)

Definition at line 205 of file vtest.c.

References c, TM::offset, TM::size, sound_init(), sound_play(), sound_step(), usage(), and xrun_count.

static void set_hwparams

(

snd_pcm_t *

handle

)

[static]

Definition at line 20 of file vtest.c.

References buffer_size, and period_size.

Referenced by sound_init().

static void set_swparams

(

snd_pcm_t *

handle

)

[static]

Definition at line 56 of file vtest.c.

References buffer_size, and period_size.

Referenced by sound_init().

void sound_init

(

void

)

Definition at line 80 of file vtest.c.

References pcm, set_hwparams(), and set_swparams().

void sound_play	(	unsigned char *	buf,
		int	size
	)

Definition at line 149 of file vtest.c.

References buffer_size, pcm, sound_step(), soundbuf, soundbuf_off, soundbuf_playing, soundbuf_size, and soundbuf_used.

Referenced by main().

int sound_step

(

void

)

Definition at line 105 of file vtest.c.

References pcm, period_size, soundbuf, soundbuf_off, soundbuf_playing, soundbuf_used, and xrun_count.

Referenced by main(), and sound_play().

void usage

(

void

)

Definition at line 198 of file vtest.c.

---

Variable Documentation

int buffer_size [static]

Definition at line 16 of file vtest.c.

Referenced by set_hwparams(), set_swparams(), and sound_play().

int dsp_fd

Definition at line 14 of file vtest.c.

snd_pcm_t* pcm

Definition at line 77 of file vtest.c.

Referenced by mm_decode_audio(), sound_init(), sound_play(), and sound_step().

int period_size [static]

Definition at line 17 of file vtest.c.

Referenced by set_hwparams(), set_swparams(), and sound_step().

unsigned char* soundbuf

Definition at line 98 of file vtest.c.

int soundbuf_off

Definition at line 100 of file vtest.c.

Referenced by sound_play(), and sound_step().

int soundbuf_playing

Definition at line 101 of file vtest.c.

Referenced by sound_play(), and sound_step().

int soundbuf_size

Definition at line 97 of file vtest.c.

int soundbuf_used

Definition at line 99 of file vtest.c.

int xrun_count

Definition at line 12 of file vtest.c.

Referenced by main(), and sound_step().

---