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Old 1st May 2002, 09:52   #10  |  Link
JimmyBarnes
the Interrogator
 
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Join Date: Oct 2001
Location: DownUnder
Posts: 664
Quote:
Originally posted by Acaila

Not if any of the MPEG4 features use a colorspace conversion to achieve their goal. The point in using fast recompress over normal processing is to avoid the colorspace conversion YUY2->RGB->YV12 and only do YUY2->YV12. Normally this will save time, unless any of the filters/settings you use only work in RGB and thus force a YUY2->RGB->YUY2 conversion internally.

I don't know if the MPEG4 feature do such a thing, but the best thing to test the speed-up with fast recompress is to do it without these features.
I get your point.

However I am strictly following Doom9's DivX 5 guide at present and he recommends using GMC, Bidirectional processing and Fast Reprocess, so I presime there is a point in using the latter.

I timed a 10000 frame test using Full Processing Mode or Fast Reprocess as the only difference (typical settings for a DivX5 rip as per Doom9). Results were:

FPM 17 min 14 s FR 16 min 12 s

The FR time was 94 % of the FPM time.

JB
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