Gets a string array property from the given format info. \a values contains the values and \a n_values contains
* the number of elements. The caller must free \a values using \ref pa_format_info_free_string_array. Returns 0 on success and
* a negative integer on failure. \since 2.0
Gets a string array property from the given format info. \a values contains the values and \a n_values contains * the number of elements. The caller must free \a values using \ref pa_format_info_free_string_array. Returns 0 on success and * a negative integer on failure. \since 2.0