Two recordings, 32 videos: dev scripts FFmpeg overlays via Copilot
DanWahlin · x · 2026-11-05
Cassidy Williams shares a time-saving workflow for producing sponsor video ads. Borumi generated 16 format combinations (horizontal/vertical, with/without captions, long/short) from just two recordings via simple toggles. When the sponsor then asked for her name in the corner of every video, GUI editing wasn't practical—so she scripted it.
She created 4 overlay images (horizontal and vertical variants, corner placement adjusted for captioned versions), then fed GitHub Copilot (Fusion model) a prompt describing the filename conventions and overlay mapping, letting it generate FFmpeg commands to batch-apply the overlays. Result: 32 finished videos from two source recordings with almost no manual editing.
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