[MPlayer-dev-eng] [RFC] change lacv's MPEG-4 encoding options defaults

[Dominik 'Rathann' Mierzejewski]

On Thursday, 29 December 2005 at 16:23, Rich Felker wrote:
> On Thu, Dec 29, 2005 at 06:24:27PM +0100, Dominik 'Rathann' Mierzejewski
> wrote:
[...]
> > Agreed. For example, I use at least mbd=2:mv0:v4mv:trell:cbp for every
> > encoding job and these seem to be "always win"-type options. Rich said
> > v4mv is not good for snow, but couldn't these defaults be used on
> > per-codec basis? I mean different for mpeg4, different for snow, etc.?
> 
> Not that it's bad, just that it's very questionable whether you want
> it. Also it's stupid option overloading. v4mv does not mean "4 motion
> vectors per macroblock" in snow. IMO this is a bug.

IMHO too, it should be fixed.

> > I'm definitely in favour of changing the defaults to be more
> > quality-focused and adding no-options if someone wants to turn them off.
> 
> I'm in favor of instead having a simple profile-like option that
> enables many 'always win' options all at once, and still leaving them
> off in the default. There's always the possibility that they're not
> good (or maybe not even supported, and thus fatal error!) for strange
> codecs.

So something like -lavcopts vcodec=mpeg4:profile=default ?

Why not, I'd be quite happy with that.

Regards,
R.

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