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Pad the narration to the length of the picture - #292

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ralyodio merged 1 commit into
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pad-narration
Sep 24, 2026
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ralyodio merged 1 commit into
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pad-narration

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Every narrated render failed validation:

audio duration expected 5000ms ±21.333ms (one AAC frame), got 2346.000ms (drift 2654.000ms)

The voiceover for a five-second ad is about two and a half seconds of speech, so the audio stream ended early and the duration check — which requires picture and sound to agree within one AAC frame — rejected all of them.

apad extends the audio with silence indefinitely and -shortest then trims the result back to the video's five seconds, so the track is exactly as long as the picture.

Worth doing beyond satisfying the check: a player handed a track that ends early is entitled to stop there.

Narration itself is confirmed working in production — 87 KB of audio, script "Crypto Payments, No Custody. Get started free at coinpayportal.com." — and the three animated banners rendered in the same job. This was the last thing between that and a finished revision.

2581 passed / 1 failed (pre-existing tracker-geo). Typechecks clean.

Every narrated render failed validation. The voiceover for a five-second ad is
about two and a half seconds of speech, so the audio stream ended early and the
duration check — which requires picture and sound to agree within one AAC frame
— rejected all of them:

  audio duration expected 5000ms, got 2346.000ms (drift 2654.000ms)

apad extends the audio with silence indefinitely and -shortest then trims the
result back to the video's five seconds, so the track is exactly as long as the
picture. This is worth doing beyond the check: a player handed a track that
ends early is entitled to stop there.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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ThreatCrush Security Scan

48 finding(s)

HIGH/CRITICAL: 2 | MEDIUM: 31 | LOW: 15

Severity Rule Location
HIGH tls-verification-disabled lib/onion.ts:48
HIGH secret-generic-credential lib/sp/platforms/facebook.ts:32
MEDIUM js-unescaped-html-sink app/(app)/dashboard/admin/email-broadcast/EmailBroadcastForm.tsx:125
MEDIUM js-unescaped-html-sink app/(app)/dashboard/projects/[id]/autoblog/articles/[articleId]/page.tsx:214
MEDIUM js-unescaped-html-sink app/(marketing)/blog/[slug]/page.tsx:67
MEDIUM js-unescaped-html-sink app/(marketing)/blog/[slug]/page.tsx:97
MEDIUM js-unescaped-html-sink app/(marketing)/blog/[slug]/page.tsx:104
MEDIUM js-unescaped-html-sink app/(marketing)/blog/[slug]/page.tsx:110
MEDIUM js-unescaped-html-sink app/(marketing)/recent/page.tsx:186
MEDIUM js-unescaped-html-sink app/(marketing)/recent/page.tsx:190
MEDIUM js-unescaped-html-sink app/c/[project]/[slug]/page.tsx:77
MEDIUM js-unescaped-html-sink app/c/[project]/page.tsx:57
MEDIUM js-unescaped-html-sink app/careers.js/route.ts:228
MEDIUM js-unescaped-html-sink app/careers.js/route.ts:285
MEDIUM js-unescaped-html-sink app/layout.tsx:129
MEDIUM js-open-redirect app/login/form.tsx:39
MEDIUM js-unescaped-html-sink app/r/[token]/page.tsx:176
MEDIUM js-open-redirect app/signup/form.tsx:43
MEDIUM js-open-redirect components/billing/buy-credits-modal.tsx:98
MEDIUM js-unescaped-html-sink components/json-ld.tsx:8
MEDIUM js-unescaped-html-sink components/report/markdown-view.tsx:15
MEDIUM js-unescaped-html-sink lib/careers/page-templates.ts:198
MEDIUM js-dynamic-code-execution lib/crawl-limits.ts:67
MEDIUM redos-nested-quantifier lib/emailMarkdown.ts:41
MEDIUM redos-nested-quantifier lib/emailMarkdown.ts:324
MEDIUM redos-nested-quantifier lib/lx/articleGen.ts:99
MEDIUM redos-nested-quantifier lib/tracker/agent-gate.ts:61
MEDIUM sh-remote-script-execution prober/deploy/provision.sh:30
MEDIUM sql-template-interpolation scripts/detect-slot-themes.ts:31
MEDIUM sql-template-interpolation scripts/purge-constructed-keywords.ts:163
MEDIUM sql-template-interpolation scripts/purge-offniche-keywords.ts:124
MEDIUM js-dynamic-code-execution scripts/test-crawl-limits.mjs:14
MEDIUM js-dynamic-code-execution scripts/test-crawl-limits.mjs:24
LOW secret-generic-credential app/(marketing)/docs/autoblog-webhook/page.tsx:145
LOW secret-generic-credential lib/sp/platforms/linkedin.ts:25
LOW js-dynamic-code-execution tests/careers-page-templates.test.ts:21
LOW js-dynamic-code-execution tests/careers-widget-script.test.ts:19
LOW js-dynamic-code-execution tests/careers-widget-script.test.ts:69
LOW js-dynamic-code-execution tests/contract/ad-visitor-id.test.ts:51
LOW js-dynamic-code-execution tests/contract/ad-visitor-id.test.ts:52
LOW js-dynamic-code-execution tests/contract/ads-click-cooldown-redis.test.ts:20
LOW js-dynamic-code-execution tests/contract/ads-click-cooldown-redis.test.ts:24
LOW js-dynamic-code-execution tests/contract/ads-click-cooldown-redis.test.ts:25
LOW js-dynamic-code-execution tests/contract/ads-click-cooldown-redis.test.ts:26
LOW js-dynamic-code-execution tests/contract/ads-click-cooldown-redis.test.ts:31
LOW js-dynamic-code-execution tests/contract/ads-click-cooldown-redis.test.ts:35
LOW secret-generic-credential tests/contract/posthog-integration.test.ts:13
LOW secret-generic-credential tests/lead-campaign.test.ts:16

Snippets are redacted; ThreatCrush never prints matched credential material.

@ralyodio
ralyodio merged commit 0d7fa77 into master Sep 24, 2026
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