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volume: moved code to oss_mixer_find()

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This commit is contained in:
Max Kellermann 2008-11-14 18:05:13 +01:00
parent eb199ca207
commit 19131f1eda
1 changed files with 23 additions and 14 deletions
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37
src/volume.c
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@ -87,6 +87,27 @@ static void closeOssMixer(void)
volume_ossFd = -1;
}
static int
oss_find_mixer(const char *name)
{
const char *labels[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS;
for (unsigned i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
ssize_t len = strlen(labels[i]);
char *duplicated = alloca(len + 1);
/* eliminate spaces at the end */
memcpy(duplicated, labels[i], len + 1);
len -= 2;
while (len >= 0 && duplicated[len] == ' ')
duplicated[len--] = '\0';
if (strcasecmp(duplicated, name) == 0)
return i;
}
return -1;
}
static int prepOssMixer(const char *device)
{
ConfigParam *param;
@ -97,7 +118,6 @@ static int prepOssMixer(const char *device)
}
if ((param = getConfigParam(CONF_MIXER_CONTROL))) {
const char *labels[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS;
int i;
int devmask = 0;
@ -107,20 +127,9 @@ static int prepOssMixer(const char *device)
return -1;
}
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
ssize_t len = strlen(labels[i]);
char *duplicated = alloca(len + 1);
i = oss_find_mixer(param->value);
/* eliminate spaces at the end */
memcpy(duplicated, labels[i], len + 1);
len -= 2;
while (len >= 0 && duplicated[len] == ' ')
duplicated[len--] = '\0';
if (strcasecmp(duplicated, param->value) == 0)
break;
}
if (i >= SOUND_MIXER_NRDEVICES) {
if (i < 0) {
WARNING("mixer control \"%s\" not found at line %i\n",
param->value, param->line);
closeOssMixer();