build(spf): build26 from 45504a2b

dist/dev/playback/engines/hls/engine.js

@@ -0,0 +1,132 @@
+import { createComposition } from "../../../core/composition/create-composition.js";
+import { makeShareSignals } from "../../../core/composition/share-signals.js";
+import { resolveVttSegment } from "../../../media/dom/text/resolve-vtt-segment.js";
+import { loadAudioSegments, loadTextTrackSegments, loadVideoSegments } from "../../behaviors/dom/load-segments.js";
+import { setupTextTrackActors } from "../../behaviors/dom/setup-text-track-actors.js";
+import { trackCurrentTime } from "../../behaviors/dom/track-current-time.js";
+import { trackLoadTriggers } from "../../behaviors/dom/track-load-triggers.js";
+import { deriveSharedMinStartMediaTime, establishStartMediaTime } from "../../behaviors/establish-start-media-time.js";
+import { attachMediaSourceAsSourceElement } from "../../../media/dom/mse/mediasource-setup.js";
+import { canPlayTrack } from "../../../media/dom/capabilities.js";
+import { addSubtitlesTracksToMedia, getShowingSubtitlesTrackFromMedia, removeAllSubtitlesTracksFromMedia } from "../../../media/dom/text/text-track-slots.js";
+import { parseMultivariantPlaylist } from "../../../media/hls/parse-multivariant.js";
+import { getResolvedSelectedTrackDuration } from "../../../media/utils/track-selection.js";
+import { calculatePresentationDuration } from "../../behaviors/calculate-presentation-duration.js";
+import { deriveCdnPriority } from "../../behaviors/derive-cdn-priority.js";
+import { setupAirPlay } from "../../behaviors/dom/airplay.js";
+import { applyStartPosition } from "../../behaviors/dom/apply-start-position.js";
+import { endOfStream } from "../../behaviors/dom/end-of-stream.js";
+import { recoverEndStall } from "../../behaviors/dom/recover-end-stall.js";
+import { setupAudioBufferActors, setupVideoBufferActors } from "../../behaviors/dom/setup-buffer-actors.js";
+import { setupMediaSource } from "../../behaviors/dom/setup-mediasource.js";
+import { syncTextTracks } from "../../behaviors/dom/sync-text-tracks.js";
+import { updateMediaSourceDuration } from "../../behaviors/dom/update-mediasource-duration.js";
+import { resolvePresentation } from "../../behaviors/resolve-presentation.js";
+import { resolveAudioTrack, resolveTextTrack, resolveVideoTrack } from "../../behaviors/resolve-track.js";
+import { setupFailoverMonitor } from "../../behaviors/setup-failover-monitor.js";
+import { syncPreload } from "../../behaviors/sync-preload.js";
+import { switchAudioTrack, switchTextTrack, switchVideoTrack } from "../../behaviors/track-switching.js";
+import { relocatingTextPipelines, relocationPipelinesFor } from "../../primitives/relocation-pipelines.js";
+//#region src/playback/engines/hls/engine.ts
+/**
+* Generic `shareSignals` instantiated against the HLS engine's full state
+* and context — captures composition signal refs into the consumer's
+* `onSignalsReady` callback at setup time, and materializes input slots that no
+* composed behavior produces: `user*TrackSelection` (track-switching only reads
+* them). `failedCdns` is owned by `setupFailoverMonitor`, so it's already
+* materialized and reachable on the `onSignalsReady` refs without being listed
+* here.
+*/
+const shareSignals = makeShareSignals([
+	"userVideoTrackSelection",
+	"userAudioTrackSelection",
+	"userTextTrackSelection",
+	"disableRemotePlayback"
+]);
+/**
+* Create an HLS playback engine.
+*
+* Composes SPF behaviors into a reactive pipeline for HLS playback over MSE:
+* manifest resolution, track selection, ABR, segment loading, and
+* end-of-stream coordination.
+*
+* @example
+* ```ts
+* let signals: SimpleHlsEngineSignals;
+* const engine = createSimpleHlsEngine({
+*   initialBandwidth: 2_000_000,
+*   preferredAudioLanguage: 'en',
+*   onSignalsReady: (refs) => {
+*     signals = refs;
+*   },
+* });
+*
+* signals.context.mediaElement.set(videoEl);
+* signals.state.presentation.set({ url: 'https://example.com/stream.m3u8' });
+*
+* videoEl.play();
+*
+* await engine.destroy();
+* ```
+*/
+function createSimpleHlsEngine(config = {}) {
+	const deriveStartMediaTime = config.deriveStartMediaTime ?? deriveSharedMinStartMediaTime;
+	const finalConfig = {
+		...config,
+		deriveStartMediaTime,
+		attachMediaSource: attachMediaSourceAsSourceElement,
+		canPlayTrack: config.canPlayTrack ?? canPlayTrack,
+		resolveTextTrackSegment: config.resolveTextTrackSegment ?? resolveVttSegment,
+		textMessagePipelines: relocatingTextPipelines,
+		resolveDuration: config.resolveDuration ?? getResolvedSelectedTrackDuration,
+		parsePresentation: config.parsePresentation ?? parseMultivariantPlaylist,
+		addSubtitlesTracksToMedia: config.addSubtitlesTracksToMedia ?? addSubtitlesTracksToMedia,
+		getShowingSubtitlesTrackFromMedia: config.getShowingSubtitlesTrackFromMedia ?? getShowingSubtitlesTrackFromMedia,
+		removeAllSubtitlesTracksFromMedia: config.removeAllSubtitlesTracksFromMedia ?? removeAllSubtitlesTracksFromMedia,
+		videoMessagePipelines: relocationPipelinesFor("video", deriveStartMediaTime),
+		audioMessagePipelines: relocationPipelinesFor("audio", deriveStartMediaTime)
+	};
+	return createComposition([
+		syncPreload,
+		trackLoadTriggers,
+		resolvePresentation,
+		deriveCdnPriority,
+		setupFailoverMonitor,
+		resolveVideoTrack,
+		resolveAudioTrack,
+		resolveTextTrack,
+		calculatePresentationDuration,
+		setupMediaSource,
+		updateMediaSourceDuration,
+		establishStartMediaTime,
+		setupVideoBufferActors,
+		setupAudioBufferActors,
+		setupAirPlay,
+		trackCurrentTime,
+		applyStartPosition,
+		switchVideoTrack,
+		switchAudioTrack,
+		switchTextTrack,
+		loadVideoSegments,
+		loadAudioSegments,
+		endOfStream,
+		recoverEndStall,
+		syncTextTracks,
+		setupTextTrackActors,
+		loadTextTrackSegments,
+		shareSignals
+	], {
+		config: finalConfig,
+		initialState: { bandwidthState: {
+			fastEstimate: 0,
+			fastTotalWeight: 0,
+			slowEstimate: 0,
+			slowTotalWeight: 0,
+			bytesSampled: 0
+		} }
+	});
+}
+//#endregion
+export { createSimpleHlsEngine };
+
+//# sourceMappingURL=engine.js.map