mirror of
https://github.com/alsa-project/alsa-utils
synced 2024-11-08 22:05:41 +01:00
speaker-test: Add option to specify signal scale
Allow generated signals (sine and noise) to have a specified signal scale instead of using hardcoded limits of 80%. This can be handy for debugging, ie when analysing clipping issues with audio drivers. Signed-off-by: Julian Scheel <julian@jusst.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
parent
13c8269414
commit
791ae1c180
1 changed files with 18 additions and 12 deletions
|
@ -100,6 +100,7 @@ static unsigned int period_time = 0; /* period time in us */
|
|||
static unsigned int nperiods = 4; /* number of periods */
|
||||
static double freq = 440.0; /* sinusoidal wave frequency in Hz */
|
||||
static int test_type = TEST_PINK_NOISE; /* Test type. 1 = noise, 2 = sine wave */
|
||||
static float generator_scale = 0.8; /* Scale to use for sine volume */
|
||||
static pink_noise_t pink;
|
||||
static snd_pcm_uframes_t buffer_size;
|
||||
static snd_pcm_uframes_t period_size;
|
||||
|
@ -306,7 +307,7 @@ static void generate_sine(uint8_t *frames, int channel, int count, double *_phas
|
|||
switch (format) {
|
||||
case SND_PCM_FORMAT_S8:
|
||||
if (chn==channel) {
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * generator_scale * 0x7fffffff;
|
||||
ires = res;
|
||||
*samp8++ = ires >> 24;
|
||||
} else {
|
||||
|
@ -315,7 +316,7 @@ static void generate_sine(uint8_t *frames, int channel, int count, double *_phas
|
|||
break;
|
||||
case SND_PCM_FORMAT_S16_LE:
|
||||
if (chn==channel) {
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * generator_scale * 0x7fffffff;
|
||||
ires = res;
|
||||
*samp16++ = LE_SHORT(ires >> 16);
|
||||
} else {
|
||||
|
@ -324,7 +325,7 @@ static void generate_sine(uint8_t *frames, int channel, int count, double *_phas
|
|||
break;
|
||||
case SND_PCM_FORMAT_S16_BE:
|
||||
if (chn==channel) {
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * generator_scale * 0x7fffffff;
|
||||
ires = res;
|
||||
*samp16++ = BE_SHORT(ires >> 16);
|
||||
} else {
|
||||
|
@ -333,7 +334,7 @@ static void generate_sine(uint8_t *frames, int channel, int count, double *_phas
|
|||
break;
|
||||
case 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 */
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * generator_scale;
|
||||
fres = res;
|
||||
*samp_f++ = fres;
|
||||
} else {
|
||||
|
@ -342,7 +343,7 @@ static void generate_sine(uint8_t *frames, int channel, int count, double *_phas
|
|||
break;
|
||||
case SND_PCM_FORMAT_S32_LE:
|
||||
if (chn==channel) {
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * generator_scale * 0x7fffffff;
|
||||
ires = res;
|
||||
*samp32++ = LE_INT(ires);
|
||||
} else {
|
||||
|
@ -351,7 +352,7 @@ static void generate_sine(uint8_t *frames, int channel, int count, double *_phas
|
|||
break;
|
||||
case SND_PCM_FORMAT_S32_BE:
|
||||
if (chn==channel) {
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = (sin((phase * 2 * M_PI) / max_phase - M_PI)) * generator_scale * 0x7fffffff;
|
||||
ires = res;
|
||||
*samp32++ = BE_INT(ires);
|
||||
} else {
|
||||
|
@ -389,7 +390,7 @@ static void generate_pink_noise( uint8_t *frames, int channel, int count) {
|
|||
switch (format) {
|
||||
case SND_PCM_FORMAT_S8:
|
||||
if (chn==channel) {
|
||||
res = generate_pink_noise_sample(&pink) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = generate_pink_noise_sample(&pink) * generator_scale * 0x07fffffff;
|
||||
ires = res;
|
||||
*samp8++ = ires >> 24;
|
||||
} else {
|
||||
|
@ -398,7 +399,7 @@ static void generate_pink_noise( uint8_t *frames, int channel, int count) {
|
|||
break;
|
||||
case SND_PCM_FORMAT_S16_LE:
|
||||
if (chn==channel) {
|
||||
res = generate_pink_noise_sample(&pink) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = generate_pink_noise_sample(&pink) * generator_scale * 0x07fffffff;
|
||||
ires = res;
|
||||
*samp16++ = LE_SHORT(ires >> 16);
|
||||
} else {
|
||||
|
@ -407,7 +408,7 @@ static void generate_pink_noise( uint8_t *frames, int channel, int count) {
|
|||
break;
|
||||
case SND_PCM_FORMAT_S16_BE:
|
||||
if (chn==channel) {
|
||||
res = generate_pink_noise_sample(&pink) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = generate_pink_noise_sample(&pink) * generator_scale * 0x07fffffff;
|
||||
ires = res;
|
||||
*samp16++ = BE_SHORT(ires >> 16);
|
||||
} else {
|
||||
|
@ -416,7 +417,7 @@ static void generate_pink_noise( uint8_t *frames, int channel, int count) {
|
|||
break;
|
||||
case SND_PCM_FORMAT_S32_LE:
|
||||
if (chn==channel) {
|
||||
res = generate_pink_noise_sample(&pink) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = generate_pink_noise_sample(&pink) * generator_scale * 0x07fffffff;
|
||||
ires = res;
|
||||
*samp32++ = LE_INT(ires);
|
||||
} else {
|
||||
|
@ -425,7 +426,7 @@ static void generate_pink_noise( uint8_t *frames, int channel, int count) {
|
|||
break;
|
||||
case SND_PCM_FORMAT_S32_BE:
|
||||
if (chn==channel) {
|
||||
res = generate_pink_noise_sample(&pink) * 0x03fffffff; /* Don't use MAX volume */
|
||||
res = generate_pink_noise_sample(&pink) * generator_scale * 0x07fffffff;
|
||||
ires = res;
|
||||
*samp32++ = BE_INT(ires);
|
||||
} else {
|
||||
|
@ -1017,6 +1018,7 @@ static void help(void)
|
|||
"-W,--wavdir Specify the directory containing WAV files\n"
|
||||
"-m,--chmap Specify the channel map to override\n"
|
||||
"-X,--force-frequency force frequencies outside the 30-8000hz range\n"
|
||||
"-S,--scale Scale of generated test tones in percent (default=80)\n"
|
||||
"\n"));
|
||||
printf(_("Recognized sample formats are:"));
|
||||
for (fmt = supported_formats; *fmt >= 0; fmt++) {
|
||||
|
@ -1060,6 +1062,7 @@ int main(int argc, char *argv[]) {
|
|||
{"wavdir", 1, NULL, 'W'},
|
||||
{"debug", 0, NULL, 'd'},
|
||||
{"force-frequency", 0, NULL, 'X'},
|
||||
{"scale", 1, NULL, 'S'},
|
||||
#ifdef CONFIG_SUPPORT_CHMAP
|
||||
{"chmap", 1, NULL, 'm'},
|
||||
#endif
|
||||
|
@ -1081,7 +1084,7 @@ int main(int argc, char *argv[]) {
|
|||
while (1) {
|
||||
int c;
|
||||
|
||||
if ((c = getopt_long(argc, argv, "hD:r:c:f:F:b:p:P:t:l:s:w:W:d:X"
|
||||
if ((c = getopt_long(argc, argv, "hD:r:c:f:F:b:p:P:t:l:s:w:W:d:XS:"
|
||||
#ifdef CONFIG_SUPPORT_CHMAP
|
||||
"m:"
|
||||
#endif
|
||||
|
@ -1182,6 +1185,9 @@ int main(int argc, char *argv[]) {
|
|||
chmap = optarg;
|
||||
break;
|
||||
#endif
|
||||
case 'S':
|
||||
generator_scale = atoi(optarg) / 100.0;
|
||||
break;
|
||||
default:
|
||||
fprintf(stderr, _("Unknown option '%c'\n"), c);
|
||||
exit(EXIT_FAILURE);
|
||||
|
|
Loading…
Reference in a new issue