Returned entry must be freed with avio_free_directory_entry(). In particular
it may outlive AVIODirContext.
@param s directory read context.
@paramout 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.
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. @paramout 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.