Class BaseObservationTrack<T, TM, S, E>`Abstract`

Abstract base for all observation track implementations.

Type Parameters

T extends Observation
TM extends T & BaseObservation
S extends ObservationTrackState
E extends OmpEventGroup<any, any> = never

Hierarchy (View Summary)

BaseTimedItemsTrack<T, TM, S, E>
- BaseObservationTrack
  - ObservationTrackFile

Accessors

areTimedItemsFetched

get areTimedItemsFetched(): boolean
Returns boolean
Inherited from BaseTimedItemsTrack.areTimedItemsFetched
- Defined in src/media/timed-items-track.ts:504
set areTimedItemsFetched(areTimedItemsFetched: boolean): void
Parameters
- areTimedItemsFetched: boolean
Returns void
Inherited from BaseTimedItemsTrack.areTimedItemsFetched
- Defined in src/media/timed-items-track.ts:508

areTimedItemsLocked

get areTimedItemsLocked(): boolean
Returns boolean
Inherited from BaseTimedItemsTrack.areTimedItemsLocked
- Defined in src/media/timed-items-track.ts:480
set areTimedItemsLocked(value: boolean): void
Parameters
- value: boolean
Returns void
Inherited from BaseTimedItemsTrack.areTimedItemsLocked
- Defined in src/media/timed-items-track.ts:484

id

get id(): string
Unique identifier (UUID).

Returns string
Inherited from BaseTimedItemsTrack.id
- Defined in src/media/media-entity.ts:81

label

get label(): string | undefined
Human-readable label for this track.

Returns string | undefined
Inherited from BaseTimedItemsTrack.label
- Defined in src/media/track.ts:317

loadStage

get loadStage(): OpStage
Current load lifecycle stage (idle → loading → success / failure).

Returns OpStage
Inherited from BaseTimedItemsTrack.loadStage
- Defined in src/media/track.ts:313

mediaType

get mediaType(): MediaEntityType
Discriminator indicating whether this entity is a main media or a track.

Returns MediaEntityType
Inherited from BaseTimedItemsTrack.mediaType
- Defined in src/media/media-entity.ts:85

observationTrackType

get observationTrackType(): OBSERVATION_TRACK_FILE
Returns OBSERVATION_TRACK_FILE
- Defined in src/media/observation-track.ts:148

onEvent$

get onEvent$(): Observable<E | TrackEvent<S>>
Observable stream of track lifecycle events.

Returns Observable<E | TrackEvent<S>>
Inherited from BaseTimedItemsTrack.onEvent$
- Defined in src/media/track.ts:293

relations

get relations(): Relation[]
Directed relations to other MediaEntity instances (e.g. RelationType.PART_OF, RelationType.DERIVED_FROM).

Returns Relation[]
Inherited from BaseTimedItemsTrack.relations
- Defined in src/media/track.ts:309

source

get source(): Source | undefined
The data source backing this track, if any.

Returns Source | undefined
Inherited from BaseTimedItemsTrack.source
- Defined in src/media/track.ts:301

sourceFileFormatType

get sourceFileFormatType(): FileFormatType | undefined
The resolved file format type of the source.

Returns FileFormatType | undefined
Inherited from BaseTimedItemsTrack.sourceFileFormatType
- Defined in src/media/track.ts:305

state

get state(): S
Serializable state snapshot of this entity.

Returns S
Inherited from BaseTimedItemsTrack.state
- Defined in src/media/media-entity.ts:89

timedItems

get timedItems(): T[]
Returns T[]
Inherited from BaseTimedItemsTrack.timedItems
- Defined in src/media/timed-items-track.ts:472

timedItemsSorted

get timedItemsSorted(): T[]
Returns the timed items sorted by their start time.

Returns T[]
Inherited from BaseTimedItemsTrack.timedItemsSorted
- Defined in src/media/timed-items-track.ts:476

trackType

get trackType(): TrackType
The kind of track (VIDEO, AUDIO, TEXT_TRACK, MARKER_TRACK, etc.).

Returns TrackType
Inherited from BaseTimedItemsTrack.trackType
- Defined in src/media/track.ts:297

Methods

addRelation

addRelation(relation: Relation): void
Add an inter-track relation. Duplicates are silently ignored.
Parameters
- relation: Relation
Returns void
Inherited from BaseTimedItemsTrack.addRelation
- Defined in src/media/track.ts:281

addTimedItems

addTimedItems(timedItems: TM | TM[]): void
Parameters
- timedItems: TM | TM[]
Returns void
Inherited from BaseTimedItemsTrack.addTimedItems
- Defined in src/media/timed-items-track.ts:522

deleteTimedItems

deleteTimedItems(ids: T["id"] | T["id"][]): void
Parameters
- ids: T["id"] | T["id"][]
Returns void
Inherited from BaseTimedItemsTrack.deleteTimedItems
- Defined in src/media/timed-items-track.ts:568

destroy

destroy(): void
Returns void
Inherited from BaseTimedItemsTrack.destroy
- Defined in src/media/track.ts:321

findFirstTimedItemAtTime

findFirstTimedItemAtTime(time: number): T | undefined
Parameters
- time: number
Returns T | undefined
Inherited from BaseTimedItemsTrack.findFirstTimedItemAtTime
- Defined in src/media/timed-items-track.ts:468

findNearestTimedItem

findNearestTimedItem(time: number): T | undefined
Parameters
- time: number
Returns T | undefined
Inherited from BaseTimedItemsTrack.findNearestTimedItem
- Defined in src/media/timed-items-track.ts:420

findTimedItemsAtTime

findTimedItemsAtTime(time: number): T[]
Parameters
- time: number
Returns T[]
Inherited from BaseTimedItemsTrack.findTimedItemsAtTime
- Defined in src/media/timed-items-track.ts:464

findTimedItemsInRange

findTimedItemsInRange(start: number, end: number): T[]
Parameters
- start: number
- end: number
Returns T[]
Inherited from BaseTimedItemsTrack.findTimedItemsInRange
- Defined in src/media/timed-items-track.ts:374

getTimedItem

getTimedItem(id: T["id"]): T | undefined
Parameters
- id: T["id"]
Returns T | undefined
Inherited from BaseTimedItemsTrack.getTimedItem
- Defined in src/media/timed-items-track.ts:512

hasRelation

hasRelation(relation: Relation): boolean
Check whether this track already has the given relation.
Parameters
- relation: Relation
Returns boolean
Inherited from BaseTimedItemsTrack.hasRelation
- Defined in src/media/track.ts:289

loadError

loadError(error: string | undefined): void
Transition the load stage to "failure" and emit a TrackEventType.TRACK_LOAD_ERROR event.
Parameters
- error: string | undefined
Returns void
Inherited from BaseTimedItemsTrack.loadError
- Defined in src/media/track.ts:270

loadStart

loadStart(): void
Transition the load stage to "loading" and emit a TrackEventType.TRACK_LOADING event.

Returns void
Inherited from BaseTimedItemsTrack.loadStart
- Defined in src/media/track.ts:250

loadSuccess

loadSuccess(): void
Transition the load stage to "success" and emit a TrackEventType.TRACK_LOADED event.

Returns void
Inherited from BaseTimedItemsTrack.loadSuccess
- Defined in src/media/track.ts:260

updateAttrs

updateAttrs(attrs: ObservationTrackUpdateableAttrs): void
Partially update mutable track attributes and emit a TrackEventType.TRACK_UPDATED event.
Parameters
- attrs: ObservationTrackUpdateableAttrs
Returns void
Overrides BaseTimedItemsTrack.updateAttrs
- Defined in src/media/observation-track.ts:152

updateTimedItem

updateTimedItem(id: T["id"], attrs: InferUpdateAttrs<TM>): void
Parameters
- id: T["id"]
- attrs: InferUpdateAttrs<TM>
Returns void
Inherited from BaseTimedItemsTrack.updateTimedItem
- Defined in src/media/timed-items-track.ts:343