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3rd June 2003, 20:27 | #1 | Link |
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Weird blocks when vhq enabled
I have tried enabling vhq mode 1 and mode 4, and this feature always causes blocks very similar to the shit blocks that were in divx3.11a
I KNOW that I have read something about this back when vhq was first released, but I've searched, and nothing comes up. Also since everyone is saying vhq shouldnt negatively effect quality anymore, im not quite sure whats wrong. I'm using koepi's 14052003 build. |
4th June 2003, 00:15 | #6 | Link |
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@ all
this is a Trellis Quantization problem if you don't want it don't use it i got exactly the same problems a week ago and reported it in the channel http://www.mufflastig.com/CruNcher/X...ellisquantbug/
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4th June 2003, 17:28 | #8 | Link |
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@ Defiler
jep exactly but only for this encode and only for this special scene wich is a Strobo light effect Scene where Lights go off and on very quickly if i read now that also this problems can occour with VHQ i belive it could have something todo with the R-D cause VHQ also uses R-D now maybe there is some problems with Motion Estimation in such scenes i can't say that for sure but for this encode rurning off trellis helped and VHQ was still on Wide Search so its hard to tell if people now say it can also happen with only VHQ on what the problem is i would tip then in a logical manner on the R-D part both useing it but maybe Syskin can bring light into that
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4th June 2003, 17:42 | #9 | Link |
Asker of Questions
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Location: Florida
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I experienced the same thing. Turning off Trellis, but leaving VHQ=4 solved my problem.
Has anyone seen them with Trellis enabled, VHQ off?
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"The real trick to optimizing color space conversions is of course to not do them." --trbarry, April 2002 |
4th June 2003, 23:51 | #11 | Link |
The frumious Bandersnatch
Join Date: Sep 2002
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Spirited Away
another me too post.
Noticed some ugly blocking in some of the dark solid areas, like peoples hair. Turned off Trellis and kept VHQ 4 and beauty once more. That's why it's in the debug section though. Dave |
19th June 2003, 10:36 | #16 | Link |
Angel
Join Date: Jul 2002
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VHQ4 goes about 3x slower on my PC than VHQ1 so a movie that takes 2 hour to encode would take me 6 with VHQ4, is it worth the time?
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Windows 2000 Pro AthlonXP 1700+, ASUS/VIA KT266A, Seagate 80GB, Radeon 7000 VE, Creative Audigy, plexwriter 24/10/24A, Pioneer16 DVD. Last edited by BiaTch 5.0; 19th June 2003 at 10:39. |
19th June 2003, 12:33 | #18 | Link | |
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Quote:
edit: I saw a note by a XviD developer that stated comp tests aren't the full truth
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https://github.com/stax76/software-list https://www.youtube.com/@stax76/playlists Last edited by stax76; 19th June 2003 at 14:15. |
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19th June 2003, 17:15 | #19 | Link |
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@Dolemite
Vhq in the latest available koepi build is b0rked it has been fixed in the newest internal build and also in the cvs. Its in testing stage @ the moment, because it also contains syskins new ipb decission code which is not in cvs and needs to be tested first.
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19th June 2003, 17:29 | #20 | Link |
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@CruNcher
thanks, I'm a XviD n00b using it since two weeks, currently reading all the guides and topics, quite a lot things to read
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https://github.com/stax76/software-list https://www.youtube.com/@stax76/playlists Last edited by stax76; 19th June 2003 at 17:31. |
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