[MPlayer-users] Re: -ss switch broken in current 3-pass-mode of mencoder

D Richard Felker III dalias at aerifal.cx
Sat Sep 14 00:34:02 CEST 2002


On Fri, Sep 13, 2002 at 06:28:53PM +0200, Arpi wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Hi,
> 
> > > Hmmm. I was under the impression that it was, in fact, the duration, only
> > > misnamed. And I think it's described as such in manpage. Either way, it
> > > seems it doesn't behave consistently, so it should be fixed and I vote for
> > > having two options, mutually exclusive: -endpos and -duration.
> > 
> > Sorry, it was originally misnamed but consistent (always a duration)
> > when I added it a long time ago. Changes since then must have broken
> > it. I agree both forms should be available, and most importantly, they
> > should have names that make sense.
> 
> ok i've found the problem around -ss and 3-pass.
> the _user_ has 2 choices:
> 1. do the first pass for the whole file, and use -ss for 2nd/3rd pases
> 2. do all the 3 passes with the same -ss value
> 
> it was originally written for 2., but was commited a patch later to seek in
> frameno.avi too, it changed behaviour to 1.
> also, -endpost ignores the -ss it seems.

Can we just restore behavior 2? IMO behavior 1 is nonsense, it wastes
tons of time if you just want to encode part of a file since lame is
so slow.

Rich




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