Conversion of avf files to mp4 file format

Everything points to the fact that some older surveillance cameras did indeed made video recording in some long forgotten AVF format. Unfortunately, there doesn't seem to exist a reliable way how to convert it to MP4 and you will have to contact the original vendor for support, or use program bundled with the device. None of the popular video converters supports avf to mp4 conversion whatsoever.

Open AVF file    Open MP4 file