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speed-up

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UpdatedJune 26, 2026 at 02:28

Globally retime a finished short by SPEED (default 1.25x) — the LAST step of the per-span edit chain. Video setpts + pitch-corrected audio atempo, so every relative beat (captions, zoom punches, b-roll windows, CTA, end-card) compresses uniformly and stays in sync. Deterministic, non-fatal. SPEED=1 or SPEED_UP=0 passes through.

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jperrello

jperrello/C0BALT_CUT

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name	speed-up
description	Globally retime a finished short by SPEED (default 1.25x) — the LAST step of the per-span edit chain. Video setpts + pitch-corrected audio atempo, so every relative beat (captions, zoom punches, b-roll windows, CTA, end-card) compresses uniformly and stays in sync. Deterministic, non-fatal. SPEED=1 or SPEED_UP=0 passes through.

speed-up

Final retime of a finished short. Runs AFTER end-card and BEFORE qc-clip so the QC gate and visual-cadence measure (and save-local saves) the actual delivered, sped-up clip.

speed-up.sh <in.mp4> <out.mp4> [speed=1.25]

speed — playback multiplier; 1.25 ships ~20% faster. Read from arg 3 or the SPEED env (default 1.25).
Video is retimed with setpts=PTS/SPEED; audio with atempo (chained into 0.5–2.0 stages for out-of-range speeds) so pitch is preserved.
Because it is a single uniform retime applied last, ALL upstream relative timing is preserved — nothing else in the pipeline needs to know about it. Note the cold-open title hold (TITLE_SWAP) is set pre-speed, so its on-screen time is TITLE_SWAP / SPEED.
Deterministic (no Claude), idempotent (.spmeta mtime+param signature), non-fatal (probe/ffmpeg failure → passthrough copy).
SPEED=1 or SPEED_UP=0 → passthrough.

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jperrello/C0BALT_CUT

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Pick N clip-worthy spans from a transcript. Claude reads the full transcript plus a per-second RMS energy summary and returns the most engaging time ranges for shorts. The atomic unit of a short is ONE IDEA, not one topic — each span carries `cuts` (1-3 non-contiguous source ranges assembled into one flowing story) plus `idea` (the one-sentence throughline all cuts share). A multi-cut span may pull cuts from DIFFERENT topics when they develop the same single idea; a single-cut span must stay within one topic and is just `cuts:[[t0,t1]]`. A 1-second SPOKEN hook is mandatory (no title card rescues a slow open — picks under PICK_HOOK_FLOOR are dropped). Replaces the old keyword/hook-word heuristic ranker.

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jperrello/C0BALT_CUT

Deterministic source-video discovery — the clip-channel "outlier" method, keyless. Searches seed niche queries via yt-dlp ytsearch, prefilters to long-form candidates, fetches full metadata, and ranks by outlier score (views/day velocity, views-per-subscriber ratio, comment engagement, replay-heatmap peakiness). Emits a ranked candidates.json to pick the next pipeline source from. No Claude call, no API key.

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name	speed-up
description	Globally retime a finished short by SPEED (default 1.25x) — the LAST step of the per-span edit chain. Video setpts + pitch-corrected audio atempo, so every relative beat (captions, zoom punches, b-roll windows, CTA, end-card) compresses uniformly and stays in sync. Deterministic, non-fatal. SPEED=1 or SPEED_UP=0 passes through.

speed-up

Final retime of a finished short. Runs AFTER end-card and BEFORE qc-clip so the QC gate and visual-cadence measure (and save-local saves) the actual delivered, sped-up clip.

speed-up.sh <in.mp4> <out.mp4> [speed=1.25]

speed — playback multiplier; 1.25 ships ~20% faster. Read from arg 3 or the SPEED env (default 1.25).
Video is retimed with setpts=PTS/SPEED; audio with atempo (chained into 0.5–2.0 stages for out-of-range speeds) so pitch is preserved.
Because it is a single uniform retime applied last, ALL upstream relative timing is preserved — nothing else in the pipeline needs to know about it. Note the cold-open title hold (TITLE_SWAP) is set pre-speed, so its on-screen time is TITLE_SWAP / SPEED.
Deterministic (no Claude), idempotent (.spmeta mtime+param signature), non-fatal (probe/ffmpeg failure → passthrough copy).
SPEED=1 or SPEED_UP=0 → passthrough.