[vorbis] Video codec

Sean Wieland windwalker at peacefire.org
Fri Sep 8 13:31:55 PDT 2000



Ralph Giles wrote:
> 
> It's definitely possible. The Ogg bitstream format provides framing and
> sync in addition to what's embedded in the packets themselves. You might
> want to check the list archives; all this has be discussed before.
> 
> The general picture I've been pushing is: Vorbis for audio, and possibly
> Squish or uncompressed as an option as well. MNG and tarkin (the lossy
> video codec-to-be) as video formats, and mng for annotative overlays like
> DVD-style subtitles. XML substreams for closed captioning, real subtitles,
> metadata, etc. And of course we can have alternate tracks for commentary
> or translations.
> 
> My aim is to properly reimplement all the features of DVD, except
> for the non-linear and interactive bits. I've not seen a clear way to
> implemen this last within a multimedia framework, and so leave it to the
> next layer up.
> 
> Hope that helps,
>  -ralph

While I think this is an excellent and noble goal.  (I know I'd love to
have an on-demand archive of any movie I'd ever want to see, rather than
having to actually find the DVD and deal with all of the hoops of CSS
and macrovision; the same way I love having all of my CDs as a huge
on-demand Vorbis archive.)  What are your thoughts on streaming video? 
MPEG-1 doesn't cut it except for broadband users, and the
Real/QuickTime/ASF battle is rediculous.

Also, where is the MNG/tarkin source code?  Where exactly is the
development status?

-Sean


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