mpeg2enc Dual CPU threading

[mwest]

Odd situation/question for all you ffmpegX gurus out there:

I just noticed the "Dual CPU" threading option in the mpeg2enc options pane. I enabled it, and it actually was slower at encoding my file than the "Normal" setting. Does that make sense? Anyone else have experience with it?

Here's my setup:
Dual 2.0 GHz G5 / 2GB RAM / OS 10.4.4 / ffmpegX 0.0.9v
XViD AVI -> mpeg2enc DVD, subtitles

Shed some on this issue if you can...

Thanks,

Matthew

[mwest]

Quick update. The conversion took about twice as long with the "Dual CPU" setting than it did with the "Normal" setting.

Matthew

[rumplestiltskin]

Great question. I'll await major's clarification.

[major]

I'm going to update mpeg2enc for 0.0.9w, perhaps this will help for Dual too.

[rumplestiltskin]

Major,

Just wondering if H264 (for iPod) benefits from dual-processors already or if some kind of alteration of the code is necessary, as well.

Thanks

(Take your time in answering, no rush.)

[major]

It does benefit from dual processor, especially in the x264 version which shall be included in 0.0.9w.

[mwest]

Major,

Thanks for all your work. It was just something I ran into, so no rush!!! I am so glad I supported this product. ffmpegX is the shizzy!

Matthew