[ogg-dev] chaining support

Silvia Pfeiffer silvia at silvia-pfeiffer.de
Sat Jun 20 06:39:27 PDT 2009

I agree, this has been a huge problem - and in fact is a problem with
html5 <video> more generally than ogg.

How do you think that a chain identifier in skeleton will make it
possible to have e.g. a single seek bar over a stream? Would it be n
timelines or one?


On Sat, Jun 20, 2009 at 10:52 AM, Conrad Parker<conrad at metadecks.org> wrote:
> Hi,
> An issue that's been cropping up recently is chaining support. We
> discussed this a bit at FOMS 2008, and there are some open issues.
> There was talk of making some skeleton-like metadata that spans chain
> boundaries (or perhaps putting into skeleton a "chain identifier").
> Other things that need to be specced out:
>  * edits vs. playlists: how to distinguish between chains that have
> come about by removing part of an existing file, vs. a sequence of
> completely separate files
>  * how to present a seek bar to the user for each kind of chain, ie.
> one timeline for the entire sequence?
> Perhaps all we need is a field in skeleton (could be a text
> message-header field) for "sequence identifier", which identifies
> chain sections which are part of the same edit.
> Chain sections which are just a concatenation of files to play (eg.
> output from icecast) would be distinguished by not having the same
> sequence id, either by explicitly having different sequence ids or by
> not having a sequence id at all (the current case).
> Conrad.
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