Get the frame at the given indices, squeezing out the slider dims.
- Parameters:
indices (dict[str, Any]) – Reference-space value for each slider dim, ex: {"time": 46.397}. Must provide a value for every
slider dim.
- Returns:
The frame, or a tuple of the (Y, U, V) planes if the underlying data returns YUV planes.
- Return type:
np.ndarray | tuple[np.ndarray, …]