If you are previewing proxy versions of video from Viz One using Viz Engine (with Viz Engine installed on your control client machine) you must install video codecs. These are not part of Vizrt’s standard installation.
Please check the section Supported Codecs in the Viz Artist User Guide for details.
IMPORTANT! Due to licensing requirements, Vizrt does not provide the codecs required for local preview. Users must obtain and install their own codecs.