Speed increase with Nero vs. Vdub

[ChrisBensch]

Using Nero Recode (newest) to encode my movie (dvd->mpeg-4 *not avc)using the AVS script as input produces an avg of 47.9fps over two passes while using vdubmod and Divx6 give me about 8fps over two/three passes. The processing settings are as close to the same as I can get them. I understand that they're different codecs but are somewhat similar in their process. That still doesn't explain a 6X increase in encoding speed.

*Quality is almost indistinguishable to me.

[movax]

That's funny...my Recode is currently claiming 18fps (from a lossless already filtered AVI to AVC Maximum Def, Vector Range -511 <-> 512.15 or whatnot. Seems like one of your options is set a bit low maybe...what are you system specs?

[ChrisBensch]

My range for the 48fps encode was -63 - 63 or whatever that level is, also with Half Pel. When I change it to 128 - 128 and Quarter Pel, it drops to 21fps on the exact same source. Either way, it's still a damn bit faster than vdub. My encoder box is a Pentium D 820 (dual core 2.8GHz) with 512MB RAM. The ram is going to get bumped up to at least 1GB soon.

[Edit:] The machine that I'm getting my numbers for above is my other machine, it's an AMD AthlonMP 2000+. It's the same machine as in my sig. I'll try it on my Pentium D box a little later when my other encodes are finished.

[ChrisBensch]

On another note, i just tried the same source in Recode - Cinema AVC using almost maxed out features and I'm getting about 18fps for the first pass, and it's slowly climbing.

[ChrisBensch]

Okay, another update...I've killed off all unneccessary processes from my regular machine and redid my nero recode of chronicles of riddick. Using the Cinema profile as a base, 2560kpbs bitrate, no audio, 2-pass, 128-128, half-pel, mpeg quant, the rest as default...i'm getting a 76.48fps for the first pass! I'll post second pass soon.

[Edit]: I'm using the Cinema profile:
Encoding Method 2-Pass
Quality/Speed Best Quality, MV Range = -128 to 127.5, Psycho = High
Advanced MPEG Quant, Half Pixel, everything else default
Keyframes 5/240

[ChrisBensch]

On my main encoder (Pentium D 820), I'm trying recode to process Matrix Revolutions from HDTV. Here is my script:

LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\DGDecode.dll")
MPEG2Source("Matrix Revolutions-HDTV.d2v")
Crop(0,0,-4,-20)
Lanczos4Resize(1280,720)

I'm using the HDTV Profile:
Encoding Method 2-Pass
Quality/Speed Best Quality, MV Range = -128 to 127.5, Psycho = High
Advanced MPEG Quant, Half Pixel, everything else default
Keyframes 5/240

and I'm getting about 13fps on the first pass (whereas with DivX and vdub i avg about 4fps)