[vorbis-dev] Xiph Magic

Tor-Einar Jarnbjo Tor-Einar_Jarnbjo at grosch-link.de
Thu Jul 17 01:57:53 PDT 2003



>I just wonder what is "Native Vorbis" and "Native Speex"?
>It seems that you are detecting standalone Vorbis/Speex packets with
>no wrapper whatsoever.  The problem is that such a thing is
>undecodable - you need some way to mark the packet boundaries.  So no
>such beasts exist.  Flac does exist outside of Ogg but it uses its own
>framing then.

That is not correct. A "raw/native" FLAC file has no additional framing 
information. Simply removing the Ogg page headers from an Ogg/FLAC 
file would certainly produce a decodeable FLAC file. I'm not sure 
about Speex, but at least for Vorbis, it would certainly be possible 
to decode such a file. Seeking would be a little bit difficult, but 
still very much possible.

Tor

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