The iQ-Analyzer uses system wide codecs for different video formats. The following sources for Windows DirectShow filter and codecs* could be used:
FFDShow Tryout
https://sourceforge.net/projects/ffdshow-tryout
Video Codec Pack (FFDShow included)
https://www.heise.de/download/product/k-lite-codec-pack-42860/download
Please restart the iQ-Analyzer after you have installed new codecs.
*Image Engineering does not take responsibility for external web page contents or third party programs/codecs