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alsa-utils/speaker-test/speaker-test.c
Takashi Iwai 7af6e01ace Fix the default buffer size calculation in speaker-test 
Fixed the default buffer size calculation in speaker-test.
The size should be aligned to nperiods.
2006-05-12 18:07:07 +02:00

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/*
* Copyright (C) 2000-2004 James Courtier-Dutton
* Copyright (C) 2005 Nathan Hurst
*
* This file is part of the speaker-test tool.
*
* This small program sends a simple sinusoidal wave to your speakers.
*
* speaker-test is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* speaker-test is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
*
* Main program by James Courtier-Dutton (including some source code fragments from the alsa project.)
* Some cleanup from Daniel Caujolle-Bert <segfault@club-internet.fr>
* Pink noise option added Nathan Hurst,
* based on generator by Phil Burk (pink.c)
*
* Changelog:
* 0.0.8 Added support for pink noise output.
* Changelog:
* 0.0.7 Added support for more than 6 channels.
* Changelog:
* 0.0.6 Added support for different sample formats.
*
* $Id: speaker_test.c,v 1.00 2003/11/26 19:43:38 jcdutton Exp $
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sched.h>
#include <errno.h>
#include <getopt.h>
#include <inttypes.h>
#include <ctype.h>
#ifdef ENABLE_NLS
#include <locale.h>
#endif
#include <byteswap.h>
#define ALSA_PCM_NEW_HW_PARAMS_API
#define ALSA_PCM_NEW_SW_PARAMS_API
#include <alsa/asoundlib.h>
#include <sys/time.h>
#include <math.h>
#include "pink.h"
#include "aconfig.h"
#include "gettext.h"
#include "version.h"
enum {
TEST_PINK_NOISE = 1,
TEST_SINE,
TEST_WAV
};
#define MAX_CHANNELS 16
static char *device = "default"; /* playback device */
static snd_pcm_format_t format = SND_PCM_FORMAT_S16; /* sample format */
static unsigned int rate = 48000; /* stream rate */
static unsigned int channels = 1; /* count of channels */
static unsigned int speaker = 0; /* count of channels */
static unsigned int buffer_time = 0; /* ring buffer length in us */
static unsigned int period_time = 0; /* period time in us */
static unsigned int nperiods = 4; /* number of periods */
static double freq = 440; /* sinusoidal wave frequency in Hz */
static int test_type = TEST_PINK_NOISE; /* Test type. 1 = noise, 2 = sine wave */
static pink_noise_t pink;
static snd_pcm_uframes_t buffer_size;
static snd_pcm_uframes_t period_size;
static const char *given_test_wav_file = NULL;
static char *wav_file_dir = DATADIR;
static const char *channel_name[MAX_CHANNELS] = {
N_("Front Left"),
N_("Front Right"),
N_("Rear Left"),
N_("Rear Right"),
N_("Center"),
N_("LFE"),
N_("Side Left"),
N_("Side Right"),
N_("Channel 9"),
N_("Channel 10"),
N_("Channel 11"),
N_("Channel 12"),
N_("Channel 13"),
N_("Channel 14"),
N_("Channel 15"),
N_("Channel 16")
};
static const int channels4[] = {
0,
1,
3,
2
};
static const int channels6[] = {
0,
4,
1,
3,
2,
5
};
static const int channels8[] = {
0,
4,
1,
7,
3,
2,
6,
5
};
static void generate_sine(uint8_t *frames, int channel, int count, double *_phase) {
double phase = *_phase;
double max_phase = 1.0 / freq;
double step = 1.0 / (double)rate;
double res;
float fres;
int chn;
int32_t ires;
int8_t *samp8 = (int8_t*) frames;
int16_t *samp16 = (int16_t*) frames;
int32_t *samp32 = (int32_t*) frames;
float *samp_f = (float*) frames;
int sample_size_bits = snd_pcm_format_width(format);
while (count-- > 0) {
//res = sin((phase * 2 * M_PI) / max_phase - M_PI) * 32767;
//res = sin((phase * 2 * M_PI) / max_phase - M_PI) * 32767;
//res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0x03fffffff; /* Don't use MAX volume */
//if (res > 0) res = 10000;
//if (res < 0) res = -10000;
/* printf("%e\n",res); */
//ires = res;
//ires = ((16 - (count & 0xf)) <<24);
//ires = 0;
for(chn=0;chn<channels;chn++) {
if (sample_size_bits == 8) {
if (chn==channel) {
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0x03fffffff; /* Don't use MAX volume */
ires = res;
*samp8++ = ires >> 24;
//*samp8++ = 0x12;
} else {
*samp8++ = 0;
}
} else if (sample_size_bits == 16) {
if (chn==channel) {
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0x03fffffff; /* Don't use MAX volume */
ires = res;
*samp16++ = ires >>16;
//*samp16++ = 0x1234;
} else {
//*samp16++ = (ires >>16)+1;
*samp16++ = 0;
}
} else if ((sample_size_bits == 32) && (format == SND_PCM_FORMAT_FLOAT_LE)) {
if (chn==channel) {
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0.75 ; /* Don't use MAX volume */
fres = res;
*samp_f++ = fres;
//*samp32++ = 0xF2345678;
//printf("res=%lf, ires=%d 0x%x, samp32=0x%x\n",res,ires, ires, samp32[-1]);
} else {
//*samp32++ = ires+0x10000;
//*samp32++ = ires;
*samp_f++ = 0.0;
}
} else if ((sample_size_bits == 32) && (format != SND_PCM_FORMAT_FLOAT_LE)) {
if (chn==channel) {
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0x03fffffff; /* Don't use MAX volume */
ires = res;
*samp32++ = ires;
//*samp32++ = 0xF2345678;
//printf("res=%lf, ires=%d 0x%x, samp32=0x%x\n",res,ires, ires, samp32[-1]);
} else {
//*samp32++ = ires+0x10000;
//*samp32++ = ires;
*samp32++ = 0;
}
}
}
phase += step;
if (phase >= max_phase)
phase -= max_phase;
}
*_phase = phase;
}
/* Pink noise is a better test than sine wave because we can tell
* where pink noise is coming from more easily that a sine wave.
*/
static void generate_pink_noise( uint8_t *frames, int channel, int count) {
double res;
int chn;
int32_t ires;
float fres;
int8_t *samp8 = (int8_t*) frames;
int16_t *samp16 = (int16_t*) frames;
int32_t *samp32 = (int32_t*) frames;
float *samp_f = (float*) frames;
int sample_size_bits = snd_pcm_format_width(format);
while (count-- > 0) {
for(chn=0;chn<channels;chn++) {
if (sample_size_bits == 8) {
if (chn==channel) {
res = generate_pink_noise_sample(&pink) * 0x03fffffff; /* Don't use MAX volume */
ires = res;
*samp8++ = ires >> 24;
} else {
*samp8++ = 0;
}
} else if (sample_size_bits == 16) {
if (chn==channel) {
res = generate_pink_noise_sample(&pink) * 0x03fffffff; /* Don't use MAX volume */
ires = res;
*samp16++ = ires >>16;
} else {
*samp16++ = 0;
}
} else if ((sample_size_bits == 32) && (format == SND_PCM_FORMAT_FLOAT_LE)) {
if (chn==channel) {
res = generate_pink_noise_sample(&pink) * 0.75; /* Don't use MAX volume */
fres = res;
*samp_f++ = fres;
} else {
*samp_f++ = 0.0;
}
} else if ((sample_size_bits == 32) && (format != SND_PCM_FORMAT_FLOAT_LE)) {
if (chn==channel) {
res = generate_pink_noise_sample(&pink) * 0x03fffffff; /* Don't use MAX volume */
ires = res;
*samp32++ = ires;
} else {
*samp32++ = 0;
}
}
}
}
}
static int set_hwparams(snd_pcm_t *handle, snd_pcm_hw_params_t *params, snd_pcm_access_t access) {
unsigned int rrate;
int err;
snd_pcm_uframes_t period_size_min;
snd_pcm_uframes_t period_size_max;
snd_pcm_uframes_t buffer_size_min;
snd_pcm_uframes_t buffer_size_max;
/* choose all parameters */
err = snd_pcm_hw_params_any(handle, params);
if (err < 0) {
printf(_("Broken configuration for playback: no configurations available: %s\n"), snd_strerror(err));
return err;
}
/* set the interleaved read/write format */
err = snd_pcm_hw_params_set_access(handle, params, access);
if (err < 0) {
printf(_("Access type not available for playback: %s\n"), snd_strerror(err));
return err;
}
/* set the sample format */
err = snd_pcm_hw_params_set_format(handle, params, format);
if (err < 0) {
printf(_("Sample format not available for playback: %s\n"), snd_strerror(err));
return err;
}
/* set the count of channels */
err = snd_pcm_hw_params_set_channels(handle, params, channels);
if (err < 0) {
printf(_("Channels count (%i) not available for playbacks: %s\n"), channels, snd_strerror(err));
return err;
}
/* set the stream rate */
rrate = rate;
err = snd_pcm_hw_params_set_rate(handle, params, rate, 0);
if (err < 0) {
printf(_("Rate %iHz not available for playback: %s\n"), rate, snd_strerror(err));
return err;
}
if (rrate != rate) {
printf(_("Rate doesn't match (requested %iHz, get %iHz, err %d)\n"), rate, rrate, err);
return -EINVAL;
}
printf(_("Rate set to %iHz (requested %iHz)\n"), rrate, rate);
/* set the buffer time */
err = snd_pcm_hw_params_get_buffer_size_min(params, &buffer_size_min);
err = snd_pcm_hw_params_get_buffer_size_max(params, &buffer_size_max);
err = snd_pcm_hw_params_get_period_size_min(params, &period_size_min, NULL);
err = snd_pcm_hw_params_get_period_size_max(params, &period_size_max, NULL);
printf(_("Buffer size range from %lu to %lu\n"),buffer_size_min, buffer_size_max);
printf(_("Period size range from %lu to %lu\n"),period_size_min, period_size_max);
if (period_time > 0) {
printf(_("Requested period time %u us\n"), period_time);
err = snd_pcm_hw_params_set_period_time_near(handle, params, &period_time, NULL);
if (err < 0) {
printf(_("Unable to set period time %u us for playback: %s\n"),
period_time, snd_strerror(err));
return err;
}
}
if (buffer_time > 0) {
printf(_("Requested buffer time %u us\n"), buffer_time);
err = snd_pcm_hw_params_set_buffer_time_near(handle, params, &buffer_time, NULL);
if (err < 0) {
printf(_("Unable to set buffer time %u us for playback: %s\n"),
buffer_time, snd_strerror(err));
return err;
}
}
if (! buffer_time && ! period_time) {
buffer_size = buffer_size_max;
if (! period_time)
buffer_size = (buffer_size / nperiods) * nperiods;
printf(_("Using max buffer size %lu\n"), buffer_size);
err = snd_pcm_hw_params_set_buffer_size_near(handle, params, &buffer_size);
if (err < 0) {
printf(_("Unable to set buffer size %lu for playback: %s\n"),
buffer_size, snd_strerror(err));
return err;
}
}
if (! buffer_time || ! period_time) {
printf(_("Periods = %u\n"), nperiods);
err = snd_pcm_hw_params_set_periods_near(handle, params, &nperiods, NULL);
if (err < 0) {
printf(_("Unable to set nperiods %u for playback: %s\n"),
nperiods, snd_strerror(err));
return err;
}
}
snd_pcm_hw_params_get_buffer_size(params, &buffer_size);
snd_pcm_hw_params_get_period_size(params, &period_size, NULL);
printf(_("was set period_size = %lu\n"),period_size);
printf(_("was set buffer_size = %lu\n"),buffer_size);
if (2*period_size > buffer_size) {
printf(_("buffer to small, could not use\n"));
return err;
}
/* write the parameters to device */
err = snd_pcm_hw_params(handle, params);
if (err < 0) {
printf(_("Unable to set hw params for playback: %s\n"), snd_strerror(err));
return err;
}
return 0;
}
static int set_swparams(snd_pcm_t *handle, snd_pcm_sw_params_t *swparams) {
int err;
/* get the current swparams */
err = snd_pcm_sw_params_current(handle, swparams);
if (err < 0) {
printf(_("Unable to determine current swparams for playback: %s\n"), snd_strerror(err));
return err;
}
/* start the transfer when a buffer is full */
err = snd_pcm_sw_params_set_start_threshold(handle, swparams, buffer_size);
if (err < 0) {
printf(_("Unable to set start threshold mode for playback: %s\n"), snd_strerror(err));
return err;
}
/* allow the transfer when at least period_size frames can be processed */
err = snd_pcm_sw_params_set_avail_min(handle, swparams, period_size);
if (err < 0) {
printf(_("Unable to set avail min for playback: %s\n"), snd_strerror(err));
return err;
}
/* align all transfers to 1 sample */
err = snd_pcm_sw_params_set_xfer_align(handle, swparams, 1);
if (err < 0) {
printf(_("Unable to set transfer align for playback: %s\n"), snd_strerror(err));
return err;
}
/* write the parameters to the playback device */
err = snd_pcm_sw_params(handle, swparams);
if (err < 0) {
printf(_("Unable to set sw params for playback: %s\n"), snd_strerror(err));
return err;
}
return 0;
}
/*
* Underrun and suspend recovery
*/
static int xrun_recovery(snd_pcm_t *handle, int err) {
if (err == -EPIPE) { /* under-run */
err = snd_pcm_prepare(handle);
if (err < 0)
printf(_("Can't recovery from underrun, prepare failed: %s\n"), snd_strerror(err));
return 0;
}
else if (err == -ESTRPIPE) {
while ((err = snd_pcm_resume(handle)) == -EAGAIN)
sleep(1); /* wait until the suspend flag is released */
if (err < 0) {
err = snd_pcm_prepare(handle);
if (err < 0)
printf(_("Can't recovery from suspend, prepare failed: %s\n"), snd_strerror(err));
}
return 0;
}
return err;
}
/*
* Handle WAV files
*/
static const char *wav_file[MAX_CHANNELS];
static int wav_file_size[MAX_CHANNELS];
struct wave_header {
struct {
uint32_t magic;
uint32_t length;
uint32_t type;
} hdr;
struct {
uint32_t type;
uint32_t length;
} chunk1;
struct {
uint16_t format;
uint16_t channels;
uint32_t rate;
uint32_t bytes_per_sec;
uint16_t sample_size;
uint16_t sample_bits;
} body;
struct {
uint32_t type;
uint32_t length;
} chunk;
};
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define COMPOSE_ID(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
#define LE_SHORT(v) (v)
#define LE_INT(v) (v)
#else
#define COMPOSE_ID(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
#define LE_SHORT(v) bswap_16(v)
#define LE_INT(v) bswap_32(v)
#endif
#define WAV_RIFF COMPOSE_ID('R','I','F','F')
#define WAV_WAVE COMPOSE_ID('W','A','V','E')
#define WAV_FMT COMPOSE_ID('f','m','t',' ')
#define WAV_DATA COMPOSE_ID('d','a','t','a')
#define WAV_PCM_CODE 1
static const char *search_for_file(const char *name)
{
char *file;
if (*name == '/')
return strdup(name);
file = malloc(strlen(wav_file_dir) + strlen(name) + 2);
if (file)
sprintf(file, "%s/%s", wav_file_dir, name);
return file;
}
static int check_wav_file(int channel, const char *name)
{
struct wave_header header;
int fd;
wav_file[channel] = search_for_file(name);
if (! wav_file[channel]) {
fprintf(stderr, _("No enough memory\n"));
return -ENOMEM;
}
if ((fd = open(wav_file[channel], O_RDONLY)) < 0) {
fprintf(stderr, _("Cannot open WAV file %s\n"), wav_file[channel]);
return -EINVAL;
}
if (read(fd, &header, sizeof(header)) < (int)sizeof(header)) {
fprintf(stderr, _("Invalid WAV file %s\n"), wav_file[channel]);
goto error;
}
if (header.hdr.magic != WAV_RIFF || header.hdr.type != WAV_WAVE) {
fprintf(stderr, _("Not a WAV file: %s\n"), wav_file[channel]);
goto error;
}
if (header.body.format != LE_SHORT(WAV_PCM_CODE)) {
fprintf(stderr, _("Unsupported WAV format %d for %s\n"),
LE_SHORT(header.body.format), wav_file[channel]);
goto error;
}
if (header.body.channels != LE_SHORT(1)) {
fprintf(stderr, _("%s is not a mono stream (%d channels)\n"),
wav_file[channel], LE_SHORT(header.body.channels));
goto error;
}
if (header.body.rate != LE_INT(rate)) {
fprintf(stderr, _("Sample rate doesn't match (%d) for %s\n"),
LE_INT(header.body.rate), wav_file[channel]);
goto error;
}
if (header.body.sample_bits != LE_SHORT(16)) {
fprintf(stderr, _("Unsupported sample format bits %d for %s\n"),
LE_SHORT(header.body.sample_bits), wav_file[channel]);
goto error;
}
if (header.chunk.type != WAV_DATA) {
fprintf(stderr, _("Invalid WAV file %s\n"), wav_file[channel]);
goto error;
}
wav_file_size[channel] = LE_INT(header.chunk.length);
close(fd);
return 0;
error:
close(fd);
return -EINVAL;
}
static int setup_wav_file(int chn)
{
static const char *wavs[MAX_CHANNELS] = {
"Front_Left.wav",
"Front_Right.wav",
"Rear_Left.wav",
"Rear_Right.wav",
"Front_Center.wav",
"Rear_Center.wav", /* FIXME: should be "Bass" or so */
"Side_Left.wav",
"Side_Right.wav",
"Channel_9.wav",
"Channel_10.wav",
"Channel_11.wav",
"Channel_12.wav",
"Channel_13.wav",
"Channel_14.wav",
"Channel_15.wav",
"Channel_16.wav"
};
if (given_test_wav_file)
return check_wav_file(chn, given_test_wav_file);
else
return check_wav_file(chn, wavs[chn]);
}
static int read_wav(uint16_t *buf, int channel, int offset, int bufsize)
{
static FILE *wavfp = NULL;
int size;
if (! wav_file[channel]) {
fprintf(stderr, _("Undefined channel %d\n"), channel);
return -EINVAL;
}
if (offset >= wav_file_size[channel])
return 0; /* finished */
if (! offset) {
if (wavfp)
fclose(wavfp);
wavfp = fopen(wav_file[channel], "r");
if (! wavfp)
return -errno;
if (fseek(wavfp, sizeof(struct wave_header), SEEK_SET) < 0)
return -errno;
}
if (offset + bufsize > wav_file_size[channel])
bufsize = wav_file_size[channel] - offset;
bufsize /= channels;
for (size = 0; size < bufsize; size += 2) {
int chn;
for (chn = 0; chn < channels; chn++) {
if (chn == channel) {
if (fread(buf, 2, 1, wavfp) != 1)
return size;
}
else
*buf = 0;
buf++;
}
}
return size;
}
/*
* Transfer method - write only
*/
static int write_buffer(snd_pcm_t *handle, uint8_t *ptr, int cptr)
{
int err;
while (cptr > 0) {
err = snd_pcm_writei(handle, ptr, cptr);
if (err == -EAGAIN)
continue;
if (err < 0) {
printf(_("Write error: %d,%s\n"), err, snd_strerror(err));
if (xrun_recovery(handle, err) < 0) {
printf(_("xrun_recovery failed: %d,%s\n"), err, snd_strerror(err));
return -1;
}
break; /* skip one period */
}
ptr += snd_pcm_frames_to_bytes(handle, err);
cptr -= err;
}
return 0;
}
static int write_loop(snd_pcm_t *handle, int channel, int periods, uint8_t *frames)
{
double phase = 0;
int err, n;
if (test_type == TEST_WAV) {
int bufsize = snd_pcm_frames_to_bytes(handle, period_size);
n = 0;
while ((err = read_wav((uint16_t *)frames, channel, n, bufsize)) > 0) {
n += err;
if ((err = write_buffer(handle, frames,
snd_pcm_bytes_to_frames(handle, err * channels))) < 0)
break;
}
if (buffer_size > n) {
snd_pcm_drain(handle);
snd_pcm_prepare(handle);
}
return err;
}
for(n = 0; n < periods; n++) {
if (test_type == TEST_PINK_NOISE)
generate_pink_noise(frames, channel, period_size);
else
generate_sine(frames, channel, period_size, &phase);
if ((err = write_buffer(handle, frames, period_size)) < 0)
return err;
}
if (buffer_size > n * period_size) {
snd_pcm_drain(handle);
snd_pcm_prepare(handle);
}
return 0;
}
static void help(void)
{
int k;
printf(
_("Usage: speaker-test [OPTION]... \n"
"-h,--help help\n"
"-D,--device playback device\n"
"-r,--rate stream rate in Hz\n"
"-c,--channels count of channels in stream\n"
"-f,--frequency sine wave frequency in Hz\n"
"-F,--format sample format\n"
"-b,--buffer ring buffer size in us\n"
"-p,--period period size in us\n"
"-P,--nperiods number of periods\n"
"-t,--test pink=use pink noise, sine=use sine wave, wav=WAV file\n"
"-l,--nloops specify number of loops to test, 0 = infinite\n"
"-s,--speaker single speaker test. Values 1=Left, 2=right, etc\n"
"-w,--wavfile Use the given WAV file as a test sound\n"
"-W,--wavdir Specify the directory containing WAV files\n"
"\n"));
#if 1
printf(_("Recognized sample formats are:"));
for (k = 0; k < SND_PCM_FORMAT_LAST; ++k) {
const char *s = snd_pcm_format_name(k);
if (s)
printf(" %s", s);
}
printf("\n\n");
#endif
}
int main(int argc, char *argv[]) {
snd_pcm_t *handle;
int err, morehelp;
snd_pcm_hw_params_t *hwparams;
snd_pcm_sw_params_t *swparams;
uint8_t *frames;
int chn;
double time1,time2,time3;
unsigned int n, nloops;
struct timeval tv1,tv2;
struct option long_option[] = {
{"help", 0, NULL, 'h'},
{"device", 1, NULL, 'D'},
{"rate", 1, NULL, 'r'},
{"channels", 1, NULL, 'c'},
{"frequency", 1, NULL, 'f'},
{"format", 1, NULL, 'F'},
{"buffer", 1, NULL, 'b'},
{"period", 1, NULL, 'p'},
{"nperiods", 1, NULL, 'P'},
{"test", 1, NULL, 't'},
{"nloops", 1, NULL, 'l'},
{"speaker", 1, NULL, 's'},
{"wavfile", 1, NULL, 'w'},
{"wavdir", 1, NULL, 'W'},
{NULL, 0, NULL, 0 },
};
#ifdef ENABLE_NLS
setlocale(LC_ALL, "");
textdomain(PACKAGE);
#endif
snd_pcm_hw_params_alloca(&hwparams);
snd_pcm_sw_params_alloca(&swparams);
nloops = 0;
morehelp = 0;
printf("\nspeaker-test %s\n\n", SND_UTIL_VERSION_STR);
while (1) {
int c;
if ((c = getopt_long(argc, argv, "hD:r:c:f:F:b:p:P:t:l:s:w:W:", long_option, NULL)) < 0)
break;
switch (c) {
case 'h':
morehelp++;
break;
case 'D':
device = strdup(optarg);
break;
case 'F':
format = snd_pcm_format_value(optarg);
break;
case 'r':
rate = atoi(optarg);
rate = rate < 4000 ? 4000 : rate;
rate = rate > 196000 ? 196000 : rate;
break;
case 'c':
channels = atoi(optarg);
channels = channels < 1 ? 1 : channels;
channels = channels > 1024 ? 1024 : channels;
break;
case 'f':
freq = atoi(optarg);
freq = freq < 50 ? 50 : freq;
freq = freq > 5000 ? 5000 : freq;
break;
case 'b':
buffer_time = atoi(optarg);
buffer_time = buffer_time > 1000000 ? 1000000 : buffer_time;
break;
case 'p':
period_time = atoi(optarg);
period_time = period_time > 1000000 ? 1000000 : period_time;
break;
case 'P':
nperiods = atoi(optarg);
if (nperiods < 2 || nperiods > 1024) {
fprintf(stderr, _("Invalid number of periods %d\n"), nperiods);
exit(1);
}
break;
case 't':
if (*optarg == 'p')
test_type = TEST_PINK_NOISE;
else if (*optarg == 's')
test_type = TEST_SINE;
else if (*optarg == 'w')
test_type = TEST_WAV;
else if (isdigit(*optarg)) {
test_type = atoi(optarg);
if (test_type < TEST_PINK_NOISE || test_type > TEST_WAV) {
fprintf(stderr, _("Invalid test type %s\n"), optarg);
exit(1);
}
} else {
fprintf(stderr, _("Invalid test type %s\n"), optarg);
exit(1);
}
break;
case 'l':
nloops = atoi(optarg);
break;
case 's':
speaker = atoi(optarg);
speaker = speaker < 1 ? 0 : speaker;
speaker = speaker > channels ? 0 : speaker;
if (speaker==0) {
printf(_("Invalid parameter for -s option.\n"));
exit(EXIT_FAILURE);
}
break;
case 'w':
given_test_wav_file = optarg;
break;
case 'W':
wav_file_dir = optarg;
break;
default:
printf(_("Unknown option '%c'\n"), c);
exit(EXIT_FAILURE);
break;
}
}
if (morehelp) {
help();
exit(EXIT_SUCCESS);
}
if (test_type == TEST_WAV)
format = SND_PCM_FORMAT_S16_LE; /* fixed format */
printf(_("Playback device is %s\n"), device);
printf(_("Stream parameters are %iHz, %s, %i channels\n"), rate, snd_pcm_format_name(format), channels);
switch (test_type) {
case TEST_PINK_NOISE:
printf(_("Using 16 octaves of pink noise\n"));
break;
case TEST_SINE:
printf(_("Sine wave rate is %.4fHz\n"), freq);
break;
case TEST_WAV:
printf(_("WAV file(s)\n"));
break;
}
while ((err = snd_pcm_open(&handle, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
printf(_("Playback open error: %d,%s\n"), err,snd_strerror(err));
sleep(1);
}
if ((err = set_hwparams(handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
printf(_("Setting of hwparams failed: %s\n"), snd_strerror(err));
snd_pcm_close(handle);
exit(EXIT_FAILURE);
}
if ((err = set_swparams(handle, swparams)) < 0) {
printf(_("Setting of swparams failed: %s\n"), snd_strerror(err));
snd_pcm_close(handle);
exit(EXIT_FAILURE);
}
frames = malloc(snd_pcm_frames_to_bytes(handle, period_size));
if (test_type == TEST_PINK_NOISE)
initialize_pink_noise(&pink, 16);
if (frames == NULL) {
printf(_("No enough memory\n"));
exit(EXIT_FAILURE);
}
if (speaker==0) {
if (test_type == TEST_WAV) {
for (chn = 0; chn < channels; chn++) {
if (setup_wav_file(chn) < 0)
exit(EXIT_FAILURE);
}
}
for (n = 0; ! nloops || n < nloops; n++) {
gettimeofday(&tv1, NULL);
for(chn = 0; chn < channels; chn++) {
int channel=chn;
if (channels == 4) {
channel=channels4[chn];
}
if (channels == 6) {
channel=channels6[chn];
}
if (channels == 8) {
channel=channels8[chn];
}
printf(" %d - %s\n", channel, gettext(channel_name[channel]));
err = write_loop(handle, channel, ((rate*3)/period_size), frames);
if (err < 0) {
printf(_("Transfer failed: %s\n"), snd_strerror(err));
free(frames);
snd_pcm_close(handle);
exit(EXIT_SUCCESS);
}
}
gettimeofday(&tv2, NULL);
time1 = (double)tv1.tv_sec + ((double)tv1.tv_usec / 1000000.0);
time2 = (double)tv2.tv_sec + ((double)tv2.tv_usec / 1000000.0);
time3 = time2 - time1;
printf(_("Time per period = %lf\n"), time3 );
}
} else {
if (test_type == TEST_WAV) {
if (setup_wav_file(speaker - 1) < 0)
exit(EXIT_FAILURE);
}
printf(" - %s\n", gettext(channel_name[speaker-1]));
err = write_loop(handle, speaker-1, ((rate*5)/period_size), frames);
if (err < 0) {
printf(_("Transfer failed: %s\n"), snd_strerror(err));
}
}
free(frames);
snd_pcm_close(handle);
exit(EXIT_SUCCESS);
}
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