[Frameworks] One for the tech wizzards

[Ingo Petzke]

Didn't mean to forget to thank you so:

THANKS!!!

Ingo

- - - - - - - - - - - - - - - - -
Ingo Petzke
Alte Steige 17
97204  Höchberg
Germany
Tel +49 931 4049949
NEW Mob +49 176 53674464
- - - - - - - - - - - - - - - - - -
 

-----Ursprüngliche Nachricht-----
Von: FrameWorks [mailto:frameworks-bounces at jonasmekasfilms.com] Im Auftrag
von Flick Harrison
Gesendet: Freitag, 10. Januar 2014 22:12
An: Experimental Film Discussion List
Betreff: Re: [Frameworks] One for the tech wizzards

I think DVD studio pro could do that, alas no longer in development.  You
will have to find a "used" copy (ha ha).

The other consideration is that the bandwidth for DVD spec (8Mbps or
whatever) cannot be exceeded by all the angles put together - that is,
besides what fits on a disc, you have to consider that the playhead is
reading both angles at once even if it is only showing one.  Therefore, two
streams would be something like half quality, three streams would be 1/3
quality.

The principle is the same as "audio commentary" track - You have the film's
soundtrack, plus maybe another language version, and then the audio
commentaries, all muxed together as an Mpeg-2 stream.  Thus the total of all
these things put together can't exceed the DVD bandwidth spec.  Otherwise
your player will stutter or choke.  Older DVD players choked even on stuff
that was at the high end of the spec until everyone got the bugs worked out.

I mean if you have a 2 minute doc, you'd think you could use all 4.37 Gb on
the disc and thus have two high-quality, less-compressed angles... but no,
the video + audio of all streams together can't exceed 8 Mbps.

When you encode the video to DVD you'd get the choice of bitrate, so you'd
have to pick 4Mbps or even 3.8 maybe.  Might look okay, depending on what
you shoot - lots of moving camera, big crowds, etc, might tax the spec.  If
it's punk enough, who cares?

Maybe you could do this better on BluRay or HD-DVD, giving you more quality
to work from - it would look like low quality BluRay rather than
crappy-quality DVD, which would be an improvement.

- Flick


_______________________________________________
FrameWorks mailing list
FrameWorks at jonasmekasfilms.com
https://mailman-mail5.webfaction.com/listinfo/frameworks