{ C(refresh), &type_integer, validate_positive },
{ C2(restrict, restrictions), &type_restrict, validate_any },
{ C(sample_format), &type_sample_format, validate_sample_format },
{ C(refresh), &type_integer, validate_positive },
{ C2(restrict, restrictions), &type_restrict, validate_any },
{ C(sample_format), &type_sample_format, validate_sample_format },