View Full Version : Can a bad interlacing conversion be repared with AviSynth?
enaNNo
2nd July 2008, 18:12
I capturated a video broadcasted (PAL emition) as PAL 25fps interlaced and then I converted to NTSC 29.97 fps interlaced but with incorrect PAL-field-order. I had deleted the originally capturated one when I realized it plays incorrectly.
Could the original smoothness (PAL or NTSC, doesn't matter for me) be restored or it has no solution at all?
A piece of the video: [link removed by user request]
Thank you.
Guest
2nd July 2008, 20:48
How did you convert it to 29.97?
It has horrible macroblocking. If it's like that the whole way through, why bother?
enaNNo
2nd July 2008, 23:35
How did you convert it to 29.97?
well, I did something like this:
SeparateFields()
Weave()
SmoothDeinterlace(doublerate=true,lacethresh=1,staticthresh=20)
LanczosResize(720,480)
ChangeFPS(59.94)
SeparateFields()
SelectEvery(4,1,2)
Weave()
the problem is that the field order was bad in the PAL capture, I think. For example, the original pal showed: ABABAB... but it should be BABABA... but I didn't notice that in my pc (I should have checked it out in my standalone dvd first). So, the bad ABABAB.. was converted with that script to ABABAB... NTSC.
It has horrible macroblocking. If it's like that the whole way through, why bother?
I know. Poor quality. It is from a 1990 VHS tape from mine, I couldn't do a better capture, I did it once, and then drop the tape. That video is much aprecciated for me.
I don't mind the macroblocking, I only need a soft playing, only that. It's my goal. I hope anybody can help me.
Thank you very much.
Guest
3rd July 2008, 01:06
There are random field order inversions associated with the corruptions.
How did you end up with a corrupted MPEG2 stream from a VHS capture? How did you capture it?
enaNNo
3rd July 2008, 01:53
How did you end up with a corrupted MPEG2 stream from a VHS capture? How did you capture it?
I don't know. Normally when I do a capture, I don't pick default options. I usually change one parameter here and there. Surely I changed something I shouldn't have. I first wanted to capture the tape as NTSC, but not supported by my device.
I really don't know why do I did bad.
Tell me it can not be undone and at least I'll be able to died calmy, because I am very ilusionated believing in the problem has a real solution.
Guest
3rd July 2008, 02:33
I don't know. You don't know how you captured it! And this is an obvious follow-up to your previous thread closed for rule 6. Thread closed.
http://forum.doom9.org/showthread.php?p=1154873#post1154873
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