[vdr] AW: Re: vdr cuts recordings with ugly artifacts at cutting-points

["justin case" <justin_case@gmx.net>]

> > > But I also see block artefacts at cutting points. I can get
> rid of them
> > > with PVAStrumento, but this creates mpegfiles, not VDR recordings...
> >
> > but i assume that means throwing away some gops, right?
>
> Well - if it is just the cuts then PVAS will only throw away some
> (B-)frames.

ah, i could live with that..

> [...]
>
> > > What PVAStrumento does at cut-points is that it simply throws away
> > pictures
> > > referring to a "previous" GOP (which can be determined because the GOP
> is
> > > then flagged as "not-closed").
> >
> > ?!? i thought the stations send non-closed gops in general, so all the
> gops
> > should be marked as not-closed. i must be getting something wrong here..
>
> No, you're right. But it appears that there may be some stations sending
> closed GOPs. And although PVAS was invented to convert
> DVB-streams nowadays
> ppl. use it to correct a lot of different streams. So a check for
> closed-GOP
> makes sense.

ok.

> >
> > > As I'm almost through with adding marks.vdr processing to PVAS
> >
> > do i get it right? pvas would then be able to do the cutting? no more
> > artifacts? that would be a good step into the desired direction..
>
> You should get rid of the artefacts just by running PVAS over the cut
> recording. Using the marks.vdr gets rid of the cutting process in vdr, so
> cutting and converting on the fly.

the latter is very admireable. how far are you from releasing that tool?

> >
> > > I will consider adding vdr-output to PVAS - which should not be too
> > > different from mpeg2-PS output.
> >
> > but these wouldn't just open up in any authoring-software, or?
>
> Don't think so.

too bad :(

> >
> > also i wonder if anyone knows a way to make a program stream out of the
> > vdr-format under linux directly?
> >
>
> Currently I am in touch with someone who seems to be working on this.

pls keep me informed on that one. i guess i will find info in this list when
the time has come.

thx,
/jc



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