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Old 19 Apr 2002, 08:42 PM   #1
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Question another one of those file size probs....=(

Hi!

I have a problem encoding from DVD to DivX5 Pro. I use Gordian Knot and Vdub (2-pass encoding). And the problem is that the filesize is too small.
Example: The finished avi is 780MB, but I want it to be 1100MB, so I raised the videobitrate from 1350 to 1550 and changed the max.quant from 12 to 8. But the finished filesize is again 780MB. Anybody knows whatīs going on?
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Old 20 Apr 2002, 11:35 PM   #2
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The video is saturated with frames using the minimum quantizer, raise the resolution, or turnoff b-frames.
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Old 21 Apr 2002, 03:26 AM   #3
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you should be happy that the file size is low!





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Old 21 Apr 2002, 10:16 AM   #4
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That's really too low from your expected filesize. In that case, why don't you try to make it into a 1 CD rip? You don't have to reduce the filesize by much.
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Old 21 Apr 2002, 11:09 AM   #5
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One more thing....iīm using deinterlacing, but that shouldnīt be the problem.

khp>>iīll try raising the resolution then, what do you mean turning off b-frames? where?

techno>>nah, I want the movie to fit on 2 cdīs without waste of space......=)

Enchanter>>sorry, i meant that the filesize is 780MB without audio, itīs 1110MB with audio, so 1 cd is out of the question.....=)...I only rip with ac3-sound, so the ideal total filesize would be 1400MB for 2 cdīs
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Old 21 Apr 2002, 11:51 AM   #6
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Quote:
Originally posted by Balrog

khp>>iīll try raising the resolution then, what do you mean turning off b-frames? where?
If you are already at 704*X res, you should not raise it (you would need a 1 GHz plus machine for playback)

Assuming that you had B-frames turned on (see attachment), turning if off will yield a 20% filesize increase at max quality.

There are some very interresting quality issues regarding B-frames, one might argue that you will get better quality without B-frames, if you are very close to maximum quality.

I have attatched a screenshot of divx5.01 with the B-frame check box clearly marked, but this is the standard version so it's grayed out.
Attached Thumbnails
another one of those file size probs....=(-divx5.gif  
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Old 21 Apr 2002, 10:28 PM   #7
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Ok, thanx.

I had both: - Use GMC
and: - Use Bidirectional Encoding
turned on. (as in Doom9īs guide)

But Iīll try turning Bidirectional Encoding off.
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