[Vorbis-dev] Feedback about Vorbis Comment Chapter Extension

[Silvia Pfeiffer]

I don't remember why we gave chapters start and end time, but I have
no problem with dropping the end time if that makes it implementable.

Cheers,
Silvia.

On Wed, Sep 19, 2012 at 1:20 AM, Georg Holzmann <grh at mur.at> wrote:
> Hallo again!
>
> Some month ago we discussed about the Vorbis Comment Chapter Extension:
> http://wiki.xiph.org/Chapter_Extension
>
> I got some critics about this specification, especially from the VLC
> developers:
> see https://trac.videolan.org/vlc/ticket/6895
>
> Some parts of it:
> <cite>
> This specification allows holes between chapters and allows overlapping
> chapters... And does not explain what to do in those cases.
>
> This specification allows hierarchical chapters without defining correct
> titles (DVD/BD) or editions (MKV).
> </cite>
>
> Also in the VLC forum
> (http://forum.videolan.org/viewtopic.php?f=7&t=103971):
> <cite>
> This specification is too stupid for us to implement.
> For example, it allows overlapping chapters... Or parts without chapters.
> It allows infinite tree of chapters, etc...
> </cite>
>
>
> I have to say that I can understand the critics, the specification is
> much too complex. And it's sad that this should be the reason, why
> nobody wants to implement it ...
> Especially because the new Opus format could use the Chapter Extension
> too, which would be really great for podcasts etc.!
>
> Maybe it's possible to adapt the specification (so far no player
> supports it)?
> At the beginning, I proposed the same format as in matroska:
> http://savvyadmin.com/adding-chapters-to-videos-using-mkv-containers/
> This would be much simpler, easier to implement and consistent.
>
> At least we should discuss with VLC and other developers, otherwise this
> specification is useless ...
>
> Thanks for the attention!
> LG
> Georg
>
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