[vorbis-dev] Ogg VEO Codec, video in an Ogg stream

[Jelle Foks]

Hi Jack,

Jack Moffitt wrote:
> 
> the basic algorith was based on Debauchies wavelets in 3 dimensions.

That does sound like a really promising method.

> X * Y * frame
> 
> we encoded a 512x256x32 block (limitation of the algorithm of 2^x) and
> then discarded the low order vectors. (95% discarded is about the quality
> of jpegs..)
> 
> to get the image back, just to the iDWT on the sparse matrix you get from
> encode.
> 
> the real tricks monty helped us figure out where in compressing vector
> information and such.  the wavelet ideas were hatamoto's, with some help
> from numerical recipes.
> 
> We have code for a limited encoder, and a limited decoder, but not using
> the optimizations for vector storage.  It's not really usable, but it does
> demonstrate the technique.  I can put it up if you guys are really
> interested :)

Yes I am. Maybe put up a home at sourceforge.net?

Cya,
Jelle.

> jack.
> 
> On Mon, 28 Aug 2000, David A. Bartold wrote:
> 
> > On Mon, 28 Aug 2000, Jelle Foks wrote:
> >
> > > chad wrote:
> > > >
> > > > We did make some progress on an opensource video codec named Tarkin.. We do intend it to go into the
> > > > Ogg system, but we have been busy working on vorbis.  We've gotten 1:30 compression, and with the
> > > > ideas we have now (no chance to implement them) we're looking at least 1:50/60 with more dev
> > > > time.. The goal is to have it about 1:100.
> > > >
> > > > We're still looking to add someone with video experience to the team, so that we can move along with
> > > > this project (:
> > >
> > > Does the project have a home page, where is the source, do you have a
> > > document that explains the methods you are using? I'd like to take a
> > > look at it to see if I could be of help.
> >
> > I did a websearch and couldn't find the project.  If you could give us a
> > pointer to its source, I'd be interested in at least switching it over
> > to Ogg.  I have experience in doing that.  It'd probably make
> > more sense to put each frame in its own packet, unlike Veo ATM.
> >
> > - David
> >
> >
> > --- >8 ----
> > List archives:  http://www.xiph.org/archives/
> > Ogg project homepage: http://www.xiph.org/ogg/
> >
> 
> --- >8 ----
> List archives:  http://www.xiph.org/archives/
> Ogg project homepage: http://www.xiph.org/ogg/
> To unsubscribe from this list, send a message to 'vorbis-dev-request at xiph.org'
> containing only the word 'unsubscribe' in the body.  No subject is needed.
> Unsubscribe messages sent to the list will be ignored/filtered.

--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to 'vorbis-dev-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.