View Full Version : @len0x: auto-IVTC methods for AutoGK
therealjoeblow
22nd March 2004, 22:25
Excuse my ignorance - when you say 'put ".ivtc" file in input directory', do you mean that I just need to create a dummy file named the same as the 1st .vob file, but with the extension .ivtc instead? And is the file just empty, or does it need something in it,
Thanks. I'll test it tonight and send you the test files too as discussed.
len0x
23rd March 2004, 11:09
it should be just ".ivtc" file (i.e. just extension without a name). contents doesn't matter.
therealjoeblow
23rd March 2004, 19:16
Ok - I figured out how to create the ".ivtc" file - bloody Windows won't let you create a file with extension only (ie, no filename infront of the .)
Have to do this from a DOS command line using something like:
ECHO >.IVTC {F6}{CR}
therealjoeblow
24th March 2004, 06:53
Well, the forced IVTC worked perfectly - the entire encode plays back with no jerkyness or blurry frames now. I still get the odd frame with a little of the grey and red shadowing at edges (eg. around faces) here and there, but not a big deal - I'm going to try a divx encode, maybe that's an issue with the xvid codec, I'll let you know.
Thanks for the IVTC fix len0x - I'm still trying to send you the test files along with some of the interlace and encode logs for you to continue research into this if you want them.
Carraway
2nd April 2004, 23:19
Originally posted by therealjoeblow
Well, the forced IVTC worked perfectly - the entire encode plays back with no jerkyness or blurry frames now. I still get the odd frame with a little of the grey and red shadowing at edges (eg. around faces) here and there, but not a big deal - I'm going to try a divx encode, maybe that's an issue with the xvid codec, I'll let you know.
Very briefly, I'm certain it's not just an xvid bug for two reasons -- first, the grey/red shadows are present in the AVS script before it ever gets encoded, ane second, changing the autocrop multiple to 8 in the AVS script fixes the problem. I don't know whether the bug is in the autocrop filter or in decomb, but I don't think the problem specifically involves the code of AutoGK (or Xvid/Divx).
therealjoeblow
3rd April 2004, 06:47
Originally posted by Carraway
Very briefly, I'm certain it's not just an xvid bug for two reasons -- first, the grey/red shadows are present in the AVS script before it ever gets encoded, ane second, changing the autocrop multiple to 8 in the AVS script fixes the problem. I don't know whether the bug is in the autocrop filter or in decomb, but I don't think the problem specifically involves the code of AutoGK (or Xvid/Divx).
Sorry - I forgot to report back, but of course, you're absoultely correct - DivX5 doesn't make any difference. Neither does using XviD alpha.
@len0x - any chance of changing the autocrop values as Carraway suggests?
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