Burn Graphics

Compose one or more graphic overlays into a video in a single ffmpeg pass. Inputs can be images (PNG with alpha, JPEG), text titles (rendered via drawtext), or pre-built lower-third image cards.

This skill superseds commands/add-watermark.md (legacy single-image watermark only).

Procedure

1. Input model

The skill takes a list of overlay specs. The user can supply them inline, or via a JSON file: