Module mock 

Deterministic mock video sources.

These implement crate::VideoStream without any external decoder dependency, so we can:

• exercise the player loop end-to-end in tests,
• drive wisp examples that prove the GPU path,
• keep cargo check / just gate clean on machines without a system FFmpeg / AVFoundation toolchain.

Structs

MockVideoStream

A scrolling-gradient mock: each frame phase-shifts a smooth RGB gradient across the surface. Visually obvious motion; mathematically deterministic.

Functions

synthesize 🔒