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ucm: add snd_use_case_parse_ctl_elem_id()

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2019-11-05 20:04:54 +01:00
parent 530e8ea4c6
commit cd4b07ffbd
2 changed files with 34 additions and 0 deletions
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11
include/use-case.h
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@ -439,6 +439,17 @@ static __inline__ int snd_use_case_verb_list(snd_use_case_mgr_t *uc_mgr,
return snd_use_case_get_list(uc_mgr, "_verbs", list); return snd_use_case_get_list(uc_mgr, "_verbs", list);
} }
/**
* \brief Parse control element identifier
* \param elem_id Element identifier
* \param ucm_id Use case identifier
* \param value String value to be parsed
* \return Zero if success, otherwise a negative error code
*/
int snd_use_case_parse_ctl_elem_id(snd_ctl_elem_id_t *dst,
const char *ucm_id, char *value);
/** /**
* \} * \}
*/ */

23
src/ucm/main.c
View file

@ -1920,3 +1920,26 @@ int snd_use_case_set(snd_use_case_mgr_t *uc_mgr,
pthread_mutex_unlock(&uc_mgr->mutex); pthread_mutex_unlock(&uc_mgr->mutex);
return err; return err;
} }
/**
* \brief Parse control element identifier
* \param elem_id Element identifier
* \param ucm_id Use case identifier
* \param value String value to be parsed
* \return Zero if success, otherwise a negative error code
*/
int snd_use_case_parse_ctl_elem_id(snd_ctl_elem_id_t *dst,
const char *ucm_id, char *value)
{
snd_ctl_elem_iface_t iface;
snd_ctl_elem_id_clear(dst);
if (strcasestr(ucm_id, "name="))
return __snd_ctl_ascii_elem_id_parse(dst, value, NULL);
iface = SND_CTL_ELEM_IFACE_MIXER;
if (strcasecmp(ucm_id, "JackControl") == 0)
iface = SND_CTL_ELEM_IFACE_CARD;
snd_ctl_elem_id_set_interface(dst, iface);
snd_ctl_elem_id_set_name(dst, value);
return 0;
}