[MPlayer-users] Conversion from avi to mpeg2 summary

[Rich Felker]

On Mon, Jun 27, 2005 at 05:23:31PM +0200, Guillaume POIRIER wrote:
> Hej,
> 
> On 6/27/05, Giacomo Comes <comes at naic.edu> wrote:
> > On Mon, Jun 27, 2005 at 03:09:12PM +0200, Nico Sabbi wrote:
> > > Guillaume POIRIER wrote:
> [...]
> > > format=xsvcd.
> > > In order to make the gop structure svcd compliant the keyint should be
> > > 15 for pal and 18 for ntsc, although very often much longer gops play
> > > correctly
> > > (I always used 25 without problems).
> > > Please, mention also that the resulting file
> > > - is an extended svcd (that's why it's called xsvcd), mainly because it
> > > doesn't
> > > contain scan offsets
> > > - it should be passed to vcdimager to generate the svcd image
> > >
> > 
> > There should be a mention that PAL requires -ofps 25 and NTSC -ofps 30000/1001.
> 
> Fixed
> 
> 
> > It it also necessary very often -vf harddup.
> 
> Is it safe to add it all the time?

Yes, and it should ALWAYS be used.

> > Question. Is -af lavcresample=44100 necessary? My experience shows that just -srate 44100
> > is enough (althouth I always use it with -af-adv force=1).
> 
> I don't know, I've never tested it. What's the advantage of your
> command line (with -af-adv force =1 on)? Better quality?

Isn't force=1 the default?? IMO -srate 44100 should be enough.
If it's not default, can we change it?

Rich