Log in

View Full Version : virtualdub speed


elcabesa
15th November 2002, 21:21
a little question how is your frame/second using virtualdub and xvid?

i'm doing som,e test using my athlon900 and i cant' go over 9-10 frames..
the same thisng happen using otherp programs

poopity poop
15th November 2002, 22:23
well it all depends directly on your resolution.

at 640x480 with no filters(not even resize) encoding from an .avi I can get around 37fps with dual AMD 1900+ MP

elcabesa
16th November 2002, 11:28
640*480 is the final size or the starting size??

anyone know which will be a right sped for a athlon 900-1000

REIGN_
26th November 2002, 12:15
My PIII 700Mhz can encode at 12fps average with anisynth YV12 and resize at 464*256

lancer
28th December 2002, 19:49
I have a piii 733 with 512mb SDRAM and resizing to 720 x 640 and then cropping back to 480 to get a pseudo anamorphic file, I get 5-7 fps. wow, look at that sucker stutter!

:D

Didée
29th December 2002, 19:27
Athlon Classic 700Mhz

VOB transcoding
(AVI transcoding is somewhat faster, of course!)

[YV12]
640*480: ~12fps
640*256: ~18fps

A little optimistic, though:
XviD with ME=5, h.263, no 'features' at all.
When using "everything", i.e. ME=6, mpeg quant, ChromaME, Qpel, and B-frames, then we have

[YV12]
640*480: ~4.9fps
640*256: ~7.7fps


Luckily, I must encode no more on this machine ... but even my XP1800+ is getting slow these days.
Waiting for the HAMMER.

darksider
30th December 2002, 16:47
Originally posted by elcabesa
a little question how is your frame/second using virtualdub and xvid?

i'm doing som,e test using my athlon900 and i cant' go over 9-10 frames..
the same thisng happen using otherp programs

I have Intel Celeron 1,2 256K
384 MB RAM
Vdub + Xvid with:
Enable lumi masking
Use croma motion
Quarterpel
Global Motion Compensation

Give me in first pass 10-12fps
In second pass I have 17-24fps:cool:

Didée
30th December 2002, 22:43
darksider,

you should learn to give INFORMATION. Throwing some numbers is of no help at all.

Okay, I throw some numbers:

Quite now, my

Athlon 700 is encoding at ~55fps with ALL XviD features enabled!
(It does that indeed!)

You see, without further information, these numbers are crap. When talking about encoding speed, exact picture size is very important, as well as data rate, source format, color space ... everything. It's a long, long way from 720*576 fullscreen targetting @ 3 CDs, to 512*208 widescreen, going for 1 CD. Transcoding AVI may reach double the speed of transcoding VOBs.

Originally performed by Queen

Information, that's what I need some, Information ...

Regards

Didée

BoNz1
31st December 2002, 07:00
I can get about 9-10fps on my p4 1.6ghz w/ 512MB DDR using, motion search precision 6, mpeg quant, quaterpixel, b-frames 2 150 100, chroma motion, encoding at a resolution of 704 by 304 using lanczos resize, avisynth 2.5a, mpeg2dec3, and virtualdubmod set to fast recompress. Currently, I to am looking for ways to speed it up too without disabling too many of the advanced features. For p4 users, I find that if you put idct=5 after your mpeg2source like this mpeg2source("c:\filename.d2v" idct=5) it can save a little time but not much. I encoded LOTR FOTR a couple weeks ago it took 8hrs each pass but using idct=5 shaved off about 20min off each pass, not much but it helps. I know this because I had to redo it because I was not satisfied with it the first encode. I recently, did How The Grinch Stole Christmas as well resized to 524 x 288 if I remember correctly using motion search precison 6, modulated quant, quaterpixel, b-frames 3 150 100, and chroma motion everything else was the same as before and still I only got like 9-10fps which was somewhat interesting since my resolution was much smaller. I guess this is because it is not only encoding that slows it down, in fact encoding might only take up like 25% of cpu usage.
EDIT: I think I used luma masking in the Grinch encode, this may explain why the fps stayed about the same.

darksider
31st December 2002, 09:25
Originally posted by Didée
darksider,

you should learn to give INFORMATION. Throwing some numbers is of no help at all.
Didée

Sorry.
I forget to say, I use 16:9 picture, and Lanczos3resize to 608*256 PAL

If I use GKnot and divx 5.02 with same configuration seting I have 10-12fps.

Mike456
31st December 2002, 16:25
I have an AMD Thunderbird with 1,1 GHz 100MHz FSB, 256 MB SDRam @ 100 MHz Timings 2-2-2 and I get ~5 fps.

Input: Xvid YUY2 768*288

Cropping: 760*284
motion blur (noise reduction)
rezize to 768*576 with precise bicubic (A=1.0)

Encoding to Xvid:
Motion search:6
Quaterpel enabled
GMC enabled
Chroma Motion Enabled
Data Rate ~700 Kbit/s

Audio has not been encodet in VirtualDub!

-=O.P.G-RAMIN=-
2nd January 2003, 14:16
hhmmm i wonder wot frames you get with a Athlon MP 2200+ with 1GB memory, damn i heard divx5 can reach up to 60 or 70 frames right ?

Acaila
2nd January 2003, 20:06
Under the right conditions, yeah. Especially with all the 'YV12-utilities' lately.

REIGN_
5th January 2003, 15:53
what about you Acaila? I see you have the strongest machine of all. What about fps in your PC?

Acaila
6th January 2003, 19:28
I see you have the strongest machine of allNo way, there's a few people with dual 3GHz Pentiums lately I believe :)

What about fps in your PC?With no filters except resizing to 640x272 and no QPel/B-frames in XviD I get about 55-60fps (YUY2 Avisynth) to 60-65fps (YV12 Avisynth). But that's not really realistic encoding, since most encodes use other filters and/or QPel/B-frames. In reality that comes down to about 30fps for my average encode.

Evil Andy
8th January 2003, 16:04
On my humble P2-400 working from a 16:9 PAL DVD source to 1 CD at 512x288 using nothing but bicubic resize I manage 3 to 4 fps for a first pass divx 5.02 using only the GMC pro feature.

VJWitness
10th January 2003, 15:21
Hi elcabesa,

you can´t say THAT is the right speed for the ATHLON 900, because it depends on so many factors. Filters may take up a plenty of time, but if you were not using any filters, your rate is quite low. My DURON 700 makes between six and nine frames in the first pass using deinterlacer, logoaway and resize to fullsize. The second pass makes (same settings of course) between nine and eleven fps. And it seems to depend on the program you use. VirtualDub Mod 1.4.13 is much quicker: It makes between eleven and thirteen frames during the first pass (2.35:1 letterboxed image inclusive deinterlace and logoaway). So you see, there´s no RIGHT speed.

Bye,
VJWitness