[MEncoder-users] calculating SCALE

[Guillaume POIRIER]

Hi,

On 8/24/05, Oded Shimon <ods15 at ods15.dyndns.org> wrote:
> On Wed, Aug 24, 2005 at 01:17:20PM +0200, Guillaume POIRIER wrote:
> > Hi,
> >
> > On 8/24/05, Tom?? Ba?ant <tomas.bazant at rozhlas.cz> wrote:
> > > thank you for this method, and then: how does mencoder calculate it
> > > then? i need the equation genrally...
> >
> > man mplayer or read the source.
> > You may also read:
> > http://mplayerhq.hu/~diego/DOCS/HTML/en/menc-feat-dvd-mpeg4.html#menc-feat-dvd-mpeg4-resolution-bitrate-compute
> 
> Guillaume, I think one of the things that deserves some documenting is the
> whole "prescaled" aspect/original aspect stuff, I'm hoping maybe you can
> make a patch for XML docs for that.. Do you understand the mess yourself?
> If not I'm willing to help explain it, just not document it. :)
> If such a thing is ever made, it should be linked to from man page in
> vf_scale and vf_dsize ...
> 
> (Note the issue is quite complicated, both prescaled aspect and "original"
> aspect can change between filters...)

I don't know it because I don't use it. If you can explain it in a way
that will make your explanation easily (+/- cut and pasted) integrated
to the docs, sure, go ahead.

Guillaume
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