Video editing glossary

Key terms for proxy workflows, cloud storage, and NLE handoffs, explained without jargon.

Proxy file

A proxy file is a lightweight, lower-resolution copy of the original footage used for smooth editing on any computer, replaced by the original at final export.

WebDAV

WebDAV is an HTTP extension that presents remote files as a local disk, letting applications read and write them transparently.

LRU cache

An LRU cache is a storage pool that automatically evicts the least recently used items when space runs low, keeping frequently accessed data fast to reach.

FFmpeg

FFmpeg is an open-source command-line video and audio encoder that powers most professional and consumer video tools, including Sanbila proxy generation.

ProRes Proxy

ProRes Proxy is the lightest member of the Apple ProRes codec family, designed for offline editing in Final Cut Pro, DaVinci Resolve, and any NLE that supports ProRes.

DNxHR LB

DNxHR LB (Low Bandwidth) is the lightest tier of Avid's DNxHR codec family, designed for offline proxy editing in Avid Media Composer.

Cloudflare R2

Cloudflare R2 is an object storage service compatible with the Amazon S3 API, with zero fees for downloading data out of the storage (zero egress).

Smart Relink

Smart Relink is a Sanbila feature that reads a timeline file from your NLE, identifies the clips actually used in the cut, and switches each one between proxy and original streaming on demand.

A Virtual Folder is a folder of symbolic links (symlinks) that the NLE treats as a regular folder of media, except each link can point to a local proxy or to a cloud-mounted drive containing the original.