Function rsmpeg::ffi::av_opt_is_set_to_default_by_name

pub unsafe extern "C" fn av_opt_is_set_to_default_by_name(
    obj: *mut c_void, 
    name: *const i8, 
    search_flags: i32
) -> i32

Check if given option is set to its default value.

@param obj AVClass object to check option on @param name option name @param search_flags combination of AV_OPT_SEARCH_* @return >0 when option is set to its default, 0 when option is not set its default, <0 on error