Need help with restoring

[lnatan25]

Not sure exactly how to search for this, so my bad for not :search:

I have a video that is 1080p30 made from a source that is 1080i60, which itself is made from a 1080p25 source. :rolleyes:
Unfortunately, I only have the 1080p30. I'd like to restore it in the best way possible to the original 1080p25.

These are the scripts that I have tried:

Load_Stdcall_plugin("C:\Program Files (x86)\AviSynth 2.5\plugins\yadif.dll")
Import("C:\Program Files (x86)\AviSynth 2.5\plugins\Srestore.avsi")
AviSource("video.avi")
yadif(mode=1, order=1).SRestore(frate=25)

and

AviSource("video.avi")
#(with or without this:)
#complementparity
bob
repal

And neither seem to give me a proper result.
Thanks in advance for any input!

[Didée]

That's too little information about exactly how the former conversions have been done. However, if they've been done in the most plausible way (25p -> 60i through fieldblended normconversion, 60i -> 30p by standard deinterlacing), then the simple answer is: all hope is lost, nothing can be done at all. Forget about it, leave it as it is, and put your time into something else.

FWIW, the best bet is SRestore in pure deblending mode (i.e. without prior bobbing): AviSource(..).Srestore(frate=25.0). If that doesnt cut it, then you're out of options.

[lnatan25]

Sadly, I am not entirely sure how that initial 25p -> 60i occurred. :(
FWIW, the best bet is SRestore in pure deblending mode (i.e. without prior bobbing): AviSource(..).Srestore(frate=25.0). If that doesnt cut it, then you're out of options.
Indeed, it seems this does not work either. I have given up for now.

Thanks for your help!