CCE speed drop

[Mephesto]

Hi

I have used dvd2svcd for about half a year now, and my CCE encoding speed has been around 0.700 all the time. But on the last two encodes, it has been going at 0.400. I have no idea why, only thing I've done is to enable Sharpen (under Frameserver) at 0.10. Is this enough to create such a big drop in speed? And with my specs I also think I should have better speeds than 0.700 too (which I've rarely had).

My specs are:
AMD XP1600 (1460mhz)
512mb DDR-RAM
2x60gb HDDs
WinXP
DVD2SVCD 1.0.9 b2

[Boulder]

Sharpen will definitely cause a serious performance hit. Maybe you should try trbarry's UnFilter. You can download it from doom9's downloads section. I think that UnFilter(20,20) will do the same as Sharpen(0.1) - there was a post about this correlation earlier somewhere in the forum and there also was a script to test it as well.

What comes to the speed you're getting, I think it's too low. I get about 1.25 with Athlon XP 1800+. I can't say what could be the cause there unless you give us some details (settings used etc.)

[Mephesto]

Some of my settings are:

Frameserver:
SimpleResize
Sharpen 0.10
TemporalSm. Strength 2, Radius 1

Encoder:
Multipass 4 (which I'm told is really 5pass)
Image Quality Priority 23
AntiNoise filter 12

Deinterlacing: Telecide on PAL, Blendfields on NTSC

Bitrate max 2530 min 300, Max. avg 2410

I will test a lot this evening turning off sharpen etc

Thanks in advance!

[mfshva]

You use Temporal Smoother und De-Interlacing!!!
TS alone will drop your speed around 20-30%
De-Interlacing costs also 10-30%

When you turn off this 2 Things you should have 1.4-1.7 on your System!!!

[Mephesto]

I will turn off at least temporal smoother. But I feel deinterlacing is necessary, isn't it? The preview still picture looks way better WITH deinterlacing activated...

[UltimateDBZ]

If you want quality, you're going to have to live with increased encoding times.. 'tis a fact of video encoding ;)

[Boulder]

Originally posted by Mephesto
I will turn off at least temporal smoother. But I feel deinterlacing is necessary, isn't it? The preview still picture looks way better WITH deinterlacing activated...

On my encodes I don't use any deinterlacing if I convert DVDs to SVCDs for watching on the standalone player. If I do a TV capture and convert it to SVCD, I'll have to use deinterlace as the quality is a lot better that way (you can see the different fields easily otherwise).

[Mephesto]

My speed certainly raised alot when not using temporal smoother, sharpen and deinterlacing. But of course you have to take your time if you want high quality...

[gerti67]

Hi there,

this discussion reminds on a quote I once heard but don't know the source anymore - it goes like this:

"Good. Cheap. Fast. Pick any two, you can't have all three."

Seems to perfectly match when speaking about video encoding - doesn't it. ;)

Greetz,
Gerti