Total understandable you can’t share, that’s fine.
What I would ask you to do, could you load those two supposably identical files into Avinaptic2 tool?
- Original Video(s)
- TVAI processed video(s) of the same original of course (2 readings per video - Before/After - total of 4 readings)
That tool is a robust tool that provides you the info of the file with all the PAR/DAR,FAR, etc. (much more Info then MediaInfo) and tell me what are the readings?
That way we can determine rather it is TVAI faulty readings or the files are actually different, even though the resolution is identical.
That way we can better understand if TVAI is the cause or rather the victim.
Example: (Before - Original Video)
Example: (After - TVAI upscaled video)
As you can see in my example, TVAI did not alter the Pixel Aspect Ratio (PAR) after upscaling, PAR remained the same. It played around with the DAR to try and compensate the video proportain due to totally out of band resolution conversion (4:3 native resolution → 16:9 native resolution) .
BTW - if you use Crop to fill instead of letterbox/PillarBox, what do you get after upscaling? does it render it in the correct proportions? leave aside for a moment if it crops a bit the image from the bottom/top/side.
