C++ (Cpp) snd_ctl_ascii_value_parse Exemples

Exemple #1

Fichier : main.c Projet : Blackrose/mini2440-bsp

static int execute_cset(snd_ctl_t *ctl, const char *cset)
{
	const char *pos;
	int err;
	snd_ctl_elem_id_t *id;
	snd_ctl_elem_value_t *value;
	snd_ctl_elem_info_t *info;

	snd_ctl_elem_id_malloc(&id);
	snd_ctl_elem_value_malloc(&value);
	snd_ctl_elem_info_malloc(&info);

	err = __snd_ctl_ascii_elem_id_parse(id, cset, &pos);
	if (err < 0)
		goto __fail;
	while (*pos && isspace(*pos))
		pos++;
	if (!*pos) {
		uc_error("undefined value for cset >%s<", cset);
		err = -EINVAL;
		goto __fail;
	}
	snd_ctl_elem_value_set_id(value, id);
	snd_ctl_elem_info_set_id(info, id);
	err = snd_ctl_elem_read(ctl, value);
	if (err < 0)
		goto __fail;
	err = snd_ctl_elem_info(ctl, info);
	if (err < 0)
		goto __fail;
	err = snd_ctl_ascii_value_parse(ctl, value, info, pos);
	if (err < 0)
		goto __fail;
	err = snd_ctl_elem_write(ctl, value);
	if (err < 0)
		goto __fail;
	err = 0;
      __fail:
	if (id != NULL)
		free(id);
	if (value != NULL)
		free(value);
	if (info != NULL)
		free(info);

	return err;
}

Exemple #2

Fichier : main.c Projet : eballetbo/alsa-lib

static int execute_cset(snd_ctl_t *ctl, const char *cset, unsigned int type)
{
	const char *pos;
	int err;
	snd_ctl_elem_id_t *id;
	snd_ctl_elem_value_t *value;
	snd_ctl_elem_info_t *info;
	unsigned int *res = NULL;

	snd_ctl_elem_id_malloc(&id);
	snd_ctl_elem_value_malloc(&value);
	snd_ctl_elem_info_malloc(&info);

	err = __snd_ctl_ascii_elem_id_parse(id, cset, &pos);
	if (err < 0)
		goto __fail;
	while (*pos && isspace(*pos))
		pos++;
	if (!*pos) {
		uc_error("undefined value for cset >%s<", cset);
		err = -EINVAL;
		goto __fail;
	}
	snd_ctl_elem_info_set_id(info, id);
	err = snd_ctl_elem_info(ctl, info);
	if (err < 0)
		goto __fail;
	if (type == SEQUENCE_ELEMENT_TYPE_CSET_TLV) {
		if (!snd_ctl_elem_info_is_tlv_writable(info)) {
			err = -EINVAL;
			goto __fail;
		}
		err = read_tlv_file(&res, pos);
		if (err < 0)
			goto __fail;
		err = snd_ctl_elem_tlv_write(ctl, id, res);
		if (err < 0)
			goto __fail;
	} else {
		snd_ctl_elem_value_set_id(value, id);
		err = snd_ctl_elem_read(ctl, value);
		if (err < 0)
			goto __fail;
		if (type == SEQUENCE_ELEMENT_TYPE_CSET_BIN_FILE)
			err = binary_file_parse(value, info, pos);
		else
			err = snd_ctl_ascii_value_parse(ctl, value, info, pos);
		if (err < 0)
			goto __fail;
		err = snd_ctl_elem_write(ctl, value);
		if (err < 0)
			goto __fail;
	}
	err = 0;
      __fail:
	if (id != NULL)
		free(id);
	if (value != NULL)
		free(value);
	if (info != NULL)
		free(info);
	if (res != NULL)
		free(res);

	return err;
}