Re: Re: the PVM situation

Jörn Reder <[email protected]> Thu, 30 Jul 2009 10:53:50 +0200
Newsgroups gmane.comp.video.transcode.devel
Message-ID <[email protected]>
Francesco Romani wrote:

> On Tue, 2009-07-28 at 13:23 +0200, Francesco Romani wrote:
> > So, I'm going to drop the PVM code for 1.2.0
>=20
> Done.
>=20
> I'd like to remark that
> 1) PVM/clustering support will RE-ENTER someday in the future
> 2) I'm more than happy to support in any way I can anyone want to
> develop, introduce or mantain that code.

I never used the PVM stuff and don't know how it works exactly. But I=20
think the way one can do cluster stuff today is sufficient: splitting=20
the stream (logically) into independent chunks and process chunks on=20
different nodes sharing the storage via NFS. Later merge the transcoded
chunks back into one target file.

Unfortunataly this works just for VOB streams (probably with AVI files -
never tested it) with separate navigation index files created with=20
transcode. As well there are A/V sync issues, depending on the material,
in particular with NTSC variable framerate streams.

So I think improving transcodes navigation/splitting and A/V sync=20
capabilities would be more worth than adding PVM stuff again, since it=20
would be useful in single and cluster mode.

Just my 2c ;)

Regards,

J=F6rn

--=20
 .''`.  J=F6rn Reder <[email protected]>
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