[MPlayer-users] Dropping Last Few Minutes of DivX AVI (NODAEMON)
D Richard Felker III
dalias at aerifal.cx
Thu Apr 24 09:41:01 CEST 2003
On Thu, Apr 24, 2003 at 12:54:41AM -0300, Martin Pavon wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> On Wed, Apr 23, 2003 at 02:14:09PM -0700, Ben Jansen wrote:
>
>
> > I did, and I did again for good measure after receiving your email.
> > Sadly, the same phenomenon occurs as when using time values (described
> > in my original email).
> >
> > Thanks,
> > Ben Jansen
> >
>
> Yeah. You're right and I don't understand what is goings on. I do a test
> myself and get the following:
>
> mencoder -ovc copy -oac copy -o test.avi -endpos 695mb lucia.avi
>
> -rw-r--r-- 1 m users 733890560 Apr 4 05:03 lucia.avi
> -rw-r--r-- 1 m users 733882304 Apr 23 23:22 test.avi
>
>
> mencoder -ovc copy -oac copy -o test.avi -endpos 600mb lucia.avi
>
> -rw-r--r-- 1 m users 733890560 Apr 4 05:03 lucia.avi
> -rw-r--r-- 1 m users 636121910 Apr 23 23:33 test.avi
>
> Fro the second test, endpos works, no very good since 636121910 approx.
> 607mb, but works. Instead, if I try to cut off only 5mb endpos fails as
> show the first test.
>
> Now, in both case the ratio is 0.99 aprox. so to get a 700mb file, try with
> 700*0.99, i.e -endpos 693mb is crazy but who knows ...
>
> Does anybody know what happend here?
Yep. -endpos tells where *in the movie* to stop encoding. The last
5-15 megs of the avi file are not part of the movie, just the index,
so telling mencoder to stop at a point beyond the end of the actual
movie won't do anything...
BTW, your example is rather silly, since 733890560 bytes will easily
fit on a cd with about 5 megs to spare!
Rich
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