No Time to Wait - S07E25 - Video Fidelity Analyzer - Peter B.
Channel: MediaArea
Date: 21/12/2023

Do you know what your ADC or capture setup does when video frame/field timings are "slightly off" or tampered with? How do you test/compare this?

In order to hunt down and debug a strange artefact introduced by a video-ADC, we needed a way to test our signal chains for any timing alterations
(dropped/inserted/swapped/etc fields).

Video test patterns are well known but cannot be used for this kind of
detection, so a method for automatically spotting anomalies in the order of
video fields was invented: "DVA Fidelity".

Consisting of a specially designed test-video and a custom patch for FFmpeg, the Video Fidelity Analyzer can be used to validate or debug any video signal chain, including the capture/encoding software.

It's not new, but still useful - and about time to be released as FOSS:
http://www.av-rd.com/products/dva-fidelity/detectable_issues.html