pub unsafe extern "C" fn avio_read_dir(
s: *mut AVIODirContext,
next: *mut *mut AVIODirEntry,
) -> c_int展开描述
Get next directory entry.
Returned entry must be freed with avio_free_directory_entry(). In particular it may outlive AVIODirContext.
@param s directory read context. @param[out] next next entry or NULL when no more entries. @return >=0 on success or negative on error. End of list is not considered an error.