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added speaker-test utility by James Courtier-Dutton <James@superbug.demon.co.uk>

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imported version: 0.0.4.
This commit is contained in:
Takashi Iwai 2004-05-10 14:28:02 +00:00
parent 4b26b779a1
commit 25dba8a7f2
5 changed files with 476 additions and 2 deletions
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2
Makefile.am
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@ -4,7 +4,7 @@ ALSAMIXER_DIR=alsamixer
else
ALSAMIXER_DIR=
endif
SUBDIRS=include alsactl alsaconf $(ALSAMIXER_DIR) amidi amixer aplay iecset seq utils
SUBDIRS=include alsactl alsaconf $(ALSAMIXER_DIR) amidi amixer aplay iecset seq speaker-test utils
EXTRA_DIST=ChangeLog INSTALL TODO README configure cvscompile depcomp
AUTOMAKE_OPTIONS=foreign

3
configure.in
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@ -84,4 +84,5 @@ AC_OUTPUT(Makefile alsactl/Makefile alsamixer/Makefile amidi/Makefile amixer/Mak
alsaconf/alsaconf alsaconf/Makefile \
aplay/Makefile include/Makefile iecset/Makefile utils/Makefile \
utils/alsa-utils.spec seq/Makefile seq/aconnect/Makefile \
seq/aplaymidi/Makefile seq/aseqnet/Makefile)
seq/aplaymidi/Makefile seq/aseqnet/Makefile \
speaker-test/Makefile)

6
speaker-test/Makefile.am Normal file
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@ -0,0 +1,6 @@
INCLUDES = -I$(top_srcdir)/include
bin_PROGRAMS = speaker-test
speaker_test_SOURCES = speaker-test.c
EXTRA_DIST = readme.txt

12
speaker-test/readme.txt Normal file
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@ -0,0 +1,12 @@
To make or build just type
make
To test: -
1) Just stereo sound from one stereo jack: -
./speaker-test -Dfront -c 2
2) A 4 speaker setup from two stereo jacks: -
./speaker-test -Dsurround40 -c 4
3) A 5.1 speaker setup from three stereo jacks: -
./speaker-test -Dsurround51 -c 6

455
speaker-test/speaker-test.c Normal file
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@ -0,0 +1,455 @@
/*
* Copyright (C) 2000-2004 James Courtier-Dutton
*
* 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.
*
* xine 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>
*
* $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 "aconfig.h"
#include <alsa/asoundlib.h>
#include <sys/time.h>
#include <math.h>
static char *device = "plughw:0,0"; /* playback device */
static snd_pcm_format_t format = SND_PCM_FORMAT_S16; /* sample format */
static unsigned int rate = 44100; /* stream rate */
static unsigned int channels = 1; /* count of channels */
static unsigned int buffer_time = 500000; /* ring buffer length in us */
static unsigned int period_time = 100000; /* period time in us */
static double freq = 440; /* sinusoidal wave frequency in Hz */
static snd_output_t *output = NULL;
static snd_pcm_uframes_t buffer_size;
static snd_pcm_uframes_t period_size;
static const char *channel_name[] = {
"Front Left" ,
"Front Right" ,
"Rear Left" ,
"Rear Right" ,
"Center" ,
"LFE"
};
static void generate_sine(signed short *samples, int channel, int count, double *_phase) {
double phase = *_phase;
double max_phase = 1.0 / freq;
double step = 1.0 / (double)rate;
double res;
int chn, ires;
while (count-- > 0) {
res = sin((phase * 2 * M_PI) / max_phase - M_PI) * 32767;
/* printf("%e\n",res); */
ires = res;
for(chn=0;chn<channels;chn++) {
if (chn==channel)
*samples++ = ires;
else
*samples++ = 0;
}
phase += step;
if (phase >= max_phase)
phase -= max_phase;
}
*_phase = phase;
}
/* FIXME: Implement, because it is a better test than sine wave
* because we can tell where pink noise is coming from more easily that a sine wave
*/
#if 0
static void generate_pink_noise( snd_pcm_uframes_t offset, int count, double *_phase) {
}
#endif
static int set_hwparams(snd_pcm_t *handle, snd_pcm_hw_params_t *params, snd_pcm_access_t access) {
unsigned int rrate;
int err, dir;
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;
snd_pcm_uframes_t buffer_time_to_size;
/* 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 */
buffer_time_to_size = ( (snd_pcm_uframes_t)buffer_time * rate) / 1000000;
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);
dir=0;
err = snd_pcm_hw_params_get_period_size_min(params, &period_size_min,&dir);
dir=0;
err = snd_pcm_hw_params_get_period_size_max(params, &period_size_max,&dir);
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);
printf("Buffer time size %lu\n",buffer_time_to_size);
buffer_size = buffer_time_to_size;
if (buffer_size_max < buffer_size) buffer_size = buffer_size_max;
if (buffer_size_min > buffer_size) buffer_size = buffer_size_min;
period_size=buffer_size/8;
buffer_size = period_size*8;
printf("To choose buffer_size = %lu\n",buffer_size);
printf("To choose period_size = %lu\n",period_size);
dir=0;
err = snd_pcm_hw_params_set_period_size_near(handle, params, &period_size, &dir);
if (err < 0) {
printf("Unable to set period size %lu for playback: %s\n", period_size, snd_strerror(err));
return err;
}
dir=0;
err = snd_pcm_hw_params_get_period_size(params, &period_size, &dir);
if (err < 0) printf("Unable to get period size for playback: %s\n", snd_strerror(err));
dir=0;
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;
}
err = snd_pcm_hw_params_get_buffer_size(params, &buffer_size);
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 period is full */
err = snd_pcm_sw_params_set_start_threshold(handle, swparams, period_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 samples 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;
}
/*
* Transfer method - write only
*/
static int write_loop(snd_pcm_t *handle, int channel, int periods, signed short *samples) {
double phase = 0;
signed short *ptr;
int err, cptr, n;
for(n = 0; n < periods; n++) {
generate_sine(samples, channel, period_size, &phase);
ptr = samples;
cptr = period_size;
while (cptr > 0) {
err = snd_pcm_writei(handle, ptr, cptr);
if (err == -EAGAIN)
continue;
if (err < 0) {
if (xrun_recovery(handle, err) < 0) {
printf("Write error: %s\n", snd_strerror(err));
return -1;
}
break; /* skip one period */
}
ptr += (err * channels);
cptr -= err;
}
}
return 0;
}
static void help(void) {
int k;
printf(
"Usage: latency [OPTION]... [FILE]...\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"
"-b,--buffer ring buffer size in us\n"
"-p,--period period size in us\n"
"\n");
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");
}
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;
signed short *samples;
int chn;
struct option long_option[] = {
{"help", 0, NULL, 'h'},
{"device", 1, NULL, 'D'},
{"rate", 1, NULL, 'r'},
{"channels", 1, NULL, 'c'},
{"frequency", 1, NULL, 'f'},
{"buffer", 1, NULL, 'b'},
{"period", 1, NULL, 'p'},
{NULL, 0, NULL, 0 },
};
snd_pcm_hw_params_alloca(&hwparams);
snd_pcm_sw_params_alloca(&swparams);
morehelp = 0;
printf("\nspeaker-test %s\n\n",VERSION);
while (1) {
int c;
if ((c = getopt_long(argc, argv, "hD:r:c:f:b:p:m:", long_option, NULL)) < 0)
break;
switch (c) {
case 'h':
morehelp++;
break;
case 'D':
device = strdup(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 < 1000 ? 1000 : buffer_time;
buffer_time = buffer_time > 1000000 ? 1000000 : buffer_time;
break;
case 'p':
period_time = atoi(optarg);
period_time = period_time < 1000 ? 1000 : period_time;
period_time = period_time > 1000000 ? 1000000 : period_time;
break;
default:
printf("Unknown option '%c'\n", c);
exit(EXIT_FAILURE);
break;
}
}
if (morehelp) {
help();
exit(EXIT_SUCCESS);
}
err = snd_output_stdio_attach(&output, stdout, 0);
if (err < 0) {
printf("Output failed: %s\n", snd_strerror(err));
exit(EXIT_FAILURE);
}
printf("Playback device is %s\n", device);
printf("Stream parameters are %iHz, %s, %i channels\n", rate, snd_pcm_format_name(format), channels);
printf("Sine wave rate is %.4fHz\n", freq);
if ((err = snd_pcm_open(&handle, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
printf("Playback open error: %s\n", snd_strerror(err));
exit(EXIT_FAILURE);
}
if ((err = set_hwparams(handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
printf("Setting of hwparams failed: %s\n", snd_strerror(err));
exit(EXIT_FAILURE);
}
if ((err = set_swparams(handle, swparams)) < 0) {
printf("Setting of swparams failed: %s\n", snd_strerror(err));
exit(EXIT_FAILURE);
}
samples = malloc((period_size * channels * snd_pcm_format_width(format)) / 8);
if (samples == NULL) {
printf("No enough memory\n");
exit(EXIT_FAILURE);
}
while (1) {
for(chn = 0; chn < channels; chn++) {
printf(" - %s\n", channel_name[chn]);
err = write_loop(handle, chn, ((rate*5)/period_size), samples);
if (err < 0) {
printf("Transfer failed: %s\n", snd_strerror(err));
exit(EXIT_FAILURE);
}
}
}
free(samples);
snd_pcm_close(handle);
exit(EXIT_SUCCESS);
}