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docs/spf fundamental concepts (#1396)

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Feedback from @decepulis treated as a fast follow/incremental improvement effort for expediency.
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Christian Pillsbury
2026-04-28 11:16:56 -07:00
committed by GitHub
parent c388dd35a9
commit 69852ddeb0
82 changed files with 2289 additions and 465 deletions
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apps/sandbox/templates/spf-segment-loading/main.ts
+6 -5
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@@ -8,8 +8,9 @@ import '@app/styles.css';
// autoplay=true Start with autoplay enabled
// preload=auto|metadata|none Initial preload mode
import type { PlaybackEngineState } from '@videojs/spf/playback-engine';
import { createPlaybackEngine, effect } from '@videojs/spf/playback-engine';
import { effect } from '@videojs/spf';
import type { HlsPlaybackEngineState } from '@videojs/spf/playback-engine';
import { createHlsPlaybackEngine } from '@videojs/spf/playback-engine';
// ── DOM refs ──────────────────────────────────────────────────────────────────
const video = document.getElementById('video') as HTMLVideoElement;
@@ -57,7 +58,7 @@ function formatBandwidth(bps: number): string {
return `${Math.round(bps / 1000)} Kbps`;
}
function getVideoTracks(state: PlaybackEngineState) {
function getVideoTracks(state: HlsPlaybackEngineState) {
return state.presentation?.selectionSets?.find((s) => s.type === 'video')?.switchingSets[0]?.tracks ?? [];
}
@@ -264,14 +265,14 @@ function inspectState() {
log('=== SPF Segment Loading POC Test ===');
log(`Stream: ${INITIAL_SRC}`);
let engine: ReturnType<typeof createPlaybackEngine>;
let engine: ReturnType<typeof createHlsPlaybackEngine>;
let cleanupEffects: () => void = () => {};
function startEngine(src: string) {
cleanupEffects();
if (engine) engine.destroy();
engine = createPlaybackEngine({ initialBandwidth: 1_000_000 });
engine = createHlsPlaybackEngine({ initialBandwidth: 1_000_000 });
(window as any).engine = engine;
(window as any).state = () => engine.state.get();
(window as any).owners = () => engine.owners.get();