[ogg-dev] Metadata

[Silvia Pfeiffer]

On 23 Jul 2013 15:17, "Martin Leese" <martin.leese at stanfordalumni.org>
wrote:
>
> Brendan Bolles wrote:
>
> > Hey everyone, according to Wikipedia's 4-year-old information, there is
no
> > standard for putting metadata into an Ogg file.
>
> True.
>
> > That metadata must be
> > included in the codec.
>
> More generally, in a stream in the Ogg file.
> Codecs are streams, but so are things like
> Ogg Skeleton.  Information about Metadata
> has been collected together in the Xiph Wiki
> at:
>     https://wiki.xiph.org/Metadata

That page is a bit outdated. It has CMML in it which we don't use any more,
but lacks to talk about Kate.

In the Theora track you can put metadata into skeleton or vorbiscomment. If
you want a full metadata stream you use Kate.

Silvia.

> > For example, what if I want to make a Theora movie and include
information
> > about the color space or embed an ICC profile?  Or can I include general
> > textual information, like copyright?  What about timecode?
>
> I have never used Theora, but according to the
> spec this stream can include VorbisComments.
> Details of these are at:
>     http://xiph.org/vorbis/doc/v-comment.html
>
> and at:
>     https://wiki.xiph.org/VorbisComment
>
> To address your specific questions:
> 1.  There is no standard field name for color
>     space or for an ICC profile; you would
>     have to roll your own.
> 2.  COPYRIGHT is a standard field name.
> 3.  A timecode could go into a DATE field
>     as described at:
>     https://wiki.xiph.org/VorbisComment#Date_and_time
>
> Regards,
> Martin
> --
> Martin J Leese
> E-mail: martin.leese  stanfordalumni.org
> Web: http://members.tripod.com/martin_leese/
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