Reframe Vertical

Use When

• The source is not already composed for portrait.
• A long-form clip needs smart 9:16 crop behavior.
• The agent must choose between face tracking, speaker tracking, cursor tracking, or a general crop.

Core Approach

1. Classify the source first: talking-head, podcast, screen-recording, demo, general.
2. Track the thing the viewer is actually following: face, active speaker, cursor, or a stable center region.
3. Prefer smooth crop motion over twitchy "always correct" movement.
4. If tracking confidence is weak, fall back to a safe general crop or blurred-fill composition instead of fake precision.
5. Validate on the actual clip, not just one sampled frame.