def _get_data(self,
data: Data,
frame: int = None,
time: float = None,
index: int = None,
**kwargs) -> None:
# pylint: disable=arguments-differ
if frame is not None and not data:
data.datasource_argument = 'frame'
data.datasource_value = frame
index = frame
elif time is not None and not data:
data.datasource_argument = 'time'
data.datasource_value = time
index = self._backend.frame_at(time)
super()._get_data(data, index=index, **kwargs)
def _get_meta(self, data: Data, filename: str = None, **kwargs) -> None:
# pylint: disable=arguments-differ
if filename is not None and not data.datasource_argument:
data.datasource_argument = 'filename'
data.datasource_value = filename
data.add_attribute('filename', batch=True)
if self._filenames is not None:
data.add_attribute('index', batch=True)
if self._loader_kind != 'array':
data.add_attribute(self._loader_kind, batch=True)
super()._get_meta(data, **kwargs)