Direction

app.domain.video.direction

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Direction enumeration for frame navigation and copying.

See Also

• PlaybackState — stores the current playback position
• TrackingLayerService — uses direction when propagating annotations

Layer: Domain. Context: Defines application concepts independently of UI and infrastructure implementations.

Direction

Bases: Enum

Direction of movement for frame navigation and detection copying.

Note

PREV moves backward in time with value -1 and NEXT moves forward with value 1. The enum values intentionally match frame index deltas so callers can use them directly for navigation, copying boxes to adjacent frames, or deleting data in a direction.

Example

current_idx = 100 direction = Direction.NEXT target_idx = current_idx + direction.value # 101

Layer: Domain. Context: Represents application concepts without UI or infrastructure dependencies.

NEXT = 1 class-attribute instance-attribute

PREV = -1 class-attribute instance-attribute