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View Full Version : encoding speed - or my first avs (2.5) script encode without gknot


killingspree
6th February 2003, 18:01
well first here's my script... i've done the encode and it worked out fine, though not perfect... i used avisynth 2.5, vdubmod 1.4.13 to encode in connection with divx 5.03!


LoadPlugin("C:\PROGRAmme\avisynth 2.5\plugins\mpeg2dec3.dll")
LoadPlugin("C:\Programme\avisynth 2.5\plugins\Convolution3dyv12.dll")
loadplugin("C:\Programme\avisynth 2.5\plugins\bicublinresize.dll")

mpeg2source("C:\spiderman\video_ts\spiderman.d2v")

crop(0,12,718,552)

fastbilinearresize(512,272)

Convolution3d (preset="movieHQ")


ok, no i've checked with the info() command if the source is YV12 before and after each step - positiv

BUT my problem is that this way to encode the movie is not even close to being faster than the normale gknot + divx 2.05, also the quality doesn't seem any better. now my source is spiderman and i did both encodes at a relatively low bitrate of 710 kbps.

so could somebody please point me to the line/mistake (or just misconfiguration) that results in the lower speed and also in the equal (to worse) quality?
any help / suggestion / construcive ciritc is greatly appreciated

thanks
steVe

PS: oh i've done a lot of searching in the forums, but somehow everything around filter etc is still kind of confusing to me :-P

Suzahara
6th February 2003, 19:04
BUT my problem is that this way to encode the movie is not even close to being faster than the normale gknot + divx 2.05

2.05? Someone's a little dyslexic :D

Maybe if you post the gknot script we can compare the two. Just seeing one script doesn't tell us anything. Although convolution3d is probably the culprit here. Smoothing will slow anything down, although those aren't really aggressive settings.

GKnot or not, shouldn't be a difference in speed if the scripts are close. GKnot is just a frontend to get everything together.

So, post the GKnot script you have been using...Would also help to know what settings you used in 5.03 as well.

I'm also wondering why you have no ivtc in there :confused:

Is spiderman a progressive dvd that can just be force filmed?

killingspree
6th February 2003, 20:14
ok here's my gknot .avs log:


#
# Created with Gordian Knot
#
# http://gknot.doom9.org
#
# PLUGINS
LoadPlugin("C:\PROGRA~1\GORDIA~1\mpeg2dec.dll")

# SOURCE
mpeg2source("C:\audio\spiderman.d2v")
#
# CROPPING
crop(0,12,718,552)
#
# RESIZING
BilinearResize(512,272)


i've cut out the parts i didn't use (deinterlace, trim, etc...)
oh and just if this is of any importance:
i'm encoding a PAL region 2 DVD

2.05? Someone's a little dyslexic
well... comeon i guess you know what i meant... (:

oh and yes, i know that gknot or not doesn't make any difference, but i supposed it would point somehow at the settings i was using

settings in divx 5.03 no profile, 710 kbps, multipass (used 2nd pass for comaprison, made 4 though) quarter pixel and GMC enabled

ok not there's my system specs (don't think it matters though ?!?)
PIV 2.0 GHz
512 DDR ram
7200 rpm hard drive (80 Gig)
Win XP Home (know it sucks) SP1

it took over 2 hours 30 for a 115 min (approx) movie...

regards
and thanks for your help
steVe

hakko504
6th February 2003, 20:27
Convolution3D is ssssssssslllllllllllllooooooooooooowwwwwwwwwwwww. It accounts for the whole difference. Remove it and I'll guarantee you'll see what I mean.

angelyote
6th February 2003, 20:31
Convolution3D is ssssssssslllllllllllllooooooooooooowwwwwwwwwwwww.

Try deen. It's one of MarcFD's filters. I find it did a good job without adding a lot of overhead to my encoding time.

Dave

killingspree
6th February 2003, 22:05
Originally posted by hakko504
Convolution3D is ssssssssslllllllllllllooooooooooooowwwwwwwwwwwww. It accounts for the whole difference.

well then... gonna try an encode without convolution right now (:
thanks for your help!

regards
steVe

EDIT:
well i've done the encode, and yes speed was better, but it still didn't beat gknot .27 / avisynth 2.07 /vdub 1.4.13/ divx 5.02

any ideas why it's still slower, i suppose it can't be divx itself? would it make a big difference that vdubmod is not PIV optimized, whereas vdub is?

thanks for your help!
steVe