TrackPayload

A track’s frames plus the metadata to send alongside them. Use it in place of a bare array when frames should carry a tag.

Definition

@dataclass
class TrackPayload:
    data: npt.NDArray[Any]
    metadata: Metadata | list[Metadata] | None = None

NDArray

The frames, in the same shape the track would take on its own.

Metadata | list[Metadata] | None

One value applied to every frame, or a list with one value per frame.

tag = {"chunk": result.index}
video = TrackPayload(result.frames, metadata=[tag] * len(result.frames))
return MyOutput(main_video=video)