[MPlayer-users] speed difference

James MS Anderson replys2me at yahoo.co.uk
Sat Nov 22 14:25:56 CET 2003


There's an easy way to find out if it's the disk/bitrate ... 

Try encoding the first at the same bitrate as you are encoding the
second with the same amount of disk space free.  Clearly if it's
encoding at the same speed as it was earlier, it'll be the action in the
second that's slowing you down.

On Sat, 2003-11-22 at 06:58, anton wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Could it really be the HD? Even fragmented (i.e., to a near full disk) I 
> have never ripped a dvd to HD that took more than about 20mins, and that 
> was for 7 or 8 gig. And there it is almost certainly the dvd that is the 
> limiting factor... 1-1757/1794 = 0.0206 ish (2.06%) - could that give a 
> 20% hit in performance? The second disk does have the battle scene 
> though..., and generally far more rapid motion (or so it seems). Just 
> thoughts.
> Cheers
> Anton
> 
> > The bitrates you posted are different: 1794 on disk1, 1757 on disk2.
> > I don't know why that would make so much of a difference, but that will
> > alter framerates at least some.
> >
> > Also, it might very well be that the second disk has more rapid
> > motion/changes, which are more difficult to encode quickly.
> >
> > Besides that, are "tower" and "tower2" on the same hard drive? Hard
> > disk performance is known to decline as data is written farther from
> > the edge. Also, since DVD dumps are very large files, the second one
> > might be more fragmented because there was less continuous free space
> > to jam it into.
> >
> > ...that's all I can come up with off the top of my head...
> >
> > -Corey
> >
> > _______________________________________________
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> >
> >
> 
> 
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