Video Polish

Description

Takes an existing screen recording or demo video and adds professional zoom and pan effects synchronized to the narration. Uses whisper-cpp for transcription, coordinate grid overlays for precise zoom targeting, and Remotion for rendering with smooth cubic ease-in-out transitions.

What this skill does

1. 1Transcribes the source video with whisper-cpp and identifies every moment where the narrator references a specific on-screen element.
2. 2Extracts frames at each key timestamp and draws a coordinate grid overlay to precisely measure zoom target positions.
3. 3Builds a keyframe timeline with zoom level, focus coordinates, and easing for each moment, anticipating narration by 0.5 seconds.
4. 4Verifies every zoom target with still frames before a full render to catch coordinate errors without wasting render time.
5. 5Renders the final video using Remotion with smooth cubic ease-in-out transitions, optionally mixing in a background soundtrack.

When to use

• You recorded a screen demo or Loom walkthrough and want it to look professionally edited with zoom effects.
• Your product demo video talks through a dashboard but the key metrics are too small to read without zooming in.
• You want to reuse an existing recording for a sales asset without re-recording it with a screen recorder plugin.
• You need to add zoom effects to a tutorial video that references multiple UI elements in sequence.

Frequently asked questions