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Christian PillsburyandClaude Opus 4.8
a82d9d85c9
Live test streams are ephemeral; let the harness target any m3u8 via a query param (default kept) so it can be pointed at a fresh stream without editing code. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
69 lines
2.5 KiB
TypeScript
69 lines
2.5 KiB
TypeScript
/**
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* Bare harness for the experimental SPF live HLS engine — wires
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* `createLiveHlsEngine` to a raw <video> (no player/skin) and logs playback
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* state, to validate live CMAF/LL-HLS playback end-to-end.
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*/
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import { createLiveHlsEngine, type LiveHlsEngineSignals } from '@videojs/spf/live-hls';
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// Override per run with `?src=<m3u8 url>` (live test streams are ephemeral).
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const SRC =
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new URLSearchParams(location.search).get('src') ??
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'https://stream.mux.com/1DRguGQyA2K2TIelbV7rU7uePlZXHyYWR1LEMC8iTC4.m3u8';
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const video = document.getElementById('video') as HTMLVideoElement;
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const logEl = document.getElementById('log')!;
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const stateEl = document.getElementById('state')!;
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const log = (msg: string, cls = '') => {
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const line = document.createElement('div');
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if (cls) line.className = cls;
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line.textContent = `${new Date().toISOString().slice(11, 23)} ${msg}`;
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logEl.prepend(line);
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};
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const buffered = () =>
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video.buffered.length
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? `${video.buffered.start(0).toFixed(2)}–${video.buffered.end(video.buffered.length - 1).toFixed(2)}`
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: 'none';
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function renderState() {
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const rows: [string, string][] = [
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['paused', String(video.paused)],
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['currentTime', video.currentTime.toFixed(2)],
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['readyState', String(video.readyState)],
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['buffered', buffered()],
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['duration', String(video.duration)],
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['error', video.error ? `${video.error.code}` : 'none'],
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];
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stateEl.innerHTML = rows.map(([k, v]) => `<div class="state-key">${k}</div><div class="val">${v}</div>`).join('');
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}
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setInterval(renderState, 500);
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for (const ev of ['loadedmetadata', 'durationchange', 'canplay', 'playing', 'waiting', 'stalled', 'seeked', 'ended']) {
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video.addEventListener(ev, () =>
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log(`${ev} t=${video.currentTime.toFixed(2)} buffered=${buffered()} ready=${video.readyState}`)
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);
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}
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video.addEventListener('error', () => log(`video error: ${video.error?.code}`, 'err'));
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let signals: LiveHlsEngineSignals | undefined;
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const engine = createLiveHlsEngine({
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onSignalsReady: (refs) => {
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signals = refs;
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},
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});
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if (!signals) throw new Error('live engine signals not ready');
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video.preload = 'auto';
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signals.context.mediaElement.set(video);
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signals.state.presentation.set({ url: SRC });
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log(`engine wired; presentation = ${SRC}`);
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video.play().then(
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() => log('play() resolved'),
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(e) => log(`play() rejected: ${e}`, 'err')
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);
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// Expose for ad-hoc debugging from the console / Playwright.
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Object.assign(window as unknown as Record<string, unknown>, { __live: { engine, signals, video } });
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