DivX 503 and virtualdub

[Alwayscamp]

Hi .. hoping someone could help

DivX 503
Virtualdub 1.4.13 (build 14328/release) by Avery Lee
Just installed DivX 5.0.3 and I am trying to compress a .mpg file - No audio.
I went o video- compression, selected divX Pro 5.0.3 Codec
Imultipass, nth pass
encoding bitrate = 768
bitrate modulation = constant quality
update log file
read MV file

max keyframe interval = 150
scene change threshold = 50%
performance = slowest
bi directional encoding

quick config CLI
-bvn1 768 -psy 1 -key 150 -log "c:\divx.log" -w -mv "c:\mvinfo.bin" -p -b -sc 50 -pq 5 -profile 2

all worked fine and well my problem started when i tried to do the nth pass

settings are pretty much the same
multipass, nth pass
encoding bitrate = 768
bitrate modulation = constant quality
update log file
read MV file

max keyframe interval = 150
scene change threshold = 50%
performance = slowest
bi directional encoding

quick config CLI
-bvnn 768 -psy 1 -key 150 -log "c:\divx.log" -w -mv "c:\mvinfo.bin" -p -b -pq 5 -vbv 768000,1048576,786432 -profile 2

Wheni clicked on save avi i got this dialog box that says
Planning Strategy
Q = 5.oooooo
Q = 4.oooooo
Q = 3.oooooo
Q = 2.oooooo
and it is still going (probably for about close to an hour)
can someone please tell me if divX 503 always does this ... is there something i did wrong ... can it be a compatibility

issue with virtualdab ....
please help

thanks for any help / insight in advance


windows xp home - sp 1
pentium 4 2.53GHz
512 MB Ram

[binky the stunt cat]

you have to select Multipass, 1st pass first.
Once that finishes, you can go back and change it to Nth pass.

[Alwayscamp]

sorry for not being clear ... but i did the first pass and that worked very well i had my problem in the 2nd pass .... by the way .. it just finnished ... saomething like 6 hours while the first pass took a grand tottal of 25 min.

[DJ Bobo]

you better use original 2-pass

[Alwayscamp]

you say better use original 2nd pass ... well i have no problem with that but let me ask you ... i switched to divx 502 and gordianknot so that i would be able to take advantage of the nth pass like three times or so .. wanted to see the results ... is there something wrong with my configuration , a problem with my install (was a fresh install ... uninstalled 502 first) or is there something else that can be going wrong
thanks fro all the help so far :)

[Evil Andy]

That's weird. Whenever I do an encode that dialog box with 'Planning Strategy' is only up for a split second. And whilst the first pass does take less time than the second 25 mins to 6 hours does seem an awful lot.

[unmei]

i could imagine the problem lies here
-vbv 768000,1057486,786432

with my encodes it more looks like
-vbv 16000000,1835008,1376256

note that in mine (1)=max bitrate >>> (2)=dunno > (3)=target bitrate

where in yours (1) < (2) > (3)
and (3) > (1)
-> target > max bitrate might be a bit diffucult to achieve

well im not deep into the matter and it might well be i'm wrong, but i just noted i have never seen the 1st number that small

[Alwayscamp]

thanks for your response .. at least i know know what those # meen ...
wiell i was trying to encode it to one cd 720 MB which i guess would equall something like 738280 and none of those numbers add up

i really dont know any more
i guess the best thing to do would be to try again
i'll do that and see hwat happens

[Alwayscamp]

well i tried doing it agai with the same video and it still gave me that "Planning Strategy" thing so i played around with the compresser and got it to work the way it always had ... this is what i did just incase any body else has this problem maybe this can help

i unchecked choose my profile but left everythng else at the same and it worked great ... thanks for the suggestions though ...