How-to guides

Task-oriented recipes. Each one assumes you already know the basics from the tutorials and gets straight to the goal.

Editing

• Build a vertical social clip — landscape source to a 9:16 clip with a fade and a music bed.
• Process hour-long videos — constant-memory rendering, frame iteration, and the memory-efficient dubbing path.

AI

• Assemble a video from AI-generated media — text to image to video, with narration and crossfades.
• Dub a video into another language — translate, clone the voice, and re-time it onto the source.

Subtitling is covered end to end in Tutorial 2.

Putting an LLM in the loop

There are three ways, and they differ in who owns the model:

You want…	Use
videopython to edit for you, fully local	Let a local LLM edit for you
your own agent/harness to drive the tools	Drive editing from an MCP agent
to author and validate plans from your own LLM integration	Author edit plans with your own LLM

The design behind all three is described in LLM-first design.