Re: [VCDImager Bugs/Devel] Real time recording of VCDs

[Arnd Bergmann]

On Tue, 5 Jun 2001, Herbert Valerio Riedel wrote:

> mmmh... the actual architecture would allow for realtime on the fly
> recording to VCD quite easily, by writing linearly (that is writing the
> isotrack first)
> 
> 1) implementing a vcd_image_sink which writes directly to CDR
> 1) implementing a custom vcd_mpeg_stream_source, which supplies some
> good guesses for playtimelength and alike...

Sounds good, but I am not really sure what theses guesses should be like.
Ideally, I want to be able to start and end tracks at any time, even on
different machines. That would mean I can never tell the track start sectors
in advance.
One idea I had for a workaround is to write an iso track containing references
to 74 (or 98) 1-minute tracks. Then I would simply start every new track
on a given sector number and the other entries simply point in the middle of 
a track.
What does the standard say about the mapping between tracks and VCD titles,
i.e does it have to be one-one or will one-many also work?
Will I get syncronization problems if I start a new track in the middle of
an MPEG stream in track-at-once mode?

> and well, yes I'd like to incorporate your additons, if they don't break
> things, and if they do I'd distribute them as contrib patch...  :-)
Good. I'll try not to break things then ;-)

> (ps2, you can write me in german in private emails if needed to clarify
> concepts)
Thanks, but I'll rather stick to english. I'm writing my thesis in
english anyway, because I am currently in Finland in an exchange program.

Arnd <><