[vorbis-dev] Updated Vorbis-RTP Internet Draft

[philkerr at elec.gla.ac.uk]

Hi Linus,

Thanks for pointing this out.  

Option 1, using the MIME type audio/vorbis and checking the transport stream,
RTP/HTTP, was suggested by the IETF folks.

I'll add the text you've written, below, to the IANA Considerations section. Thanks.

 This transport type signifies that the content is to be interpreted
 according to this document if the contents are transmitted over RTP. Should
 this transport type appear over a lossless streaming protocol such as
 TCP, the content encapsulation should be interpreted as an Ogg Stream in
 accordance with RFC 3534, with the exception that the content of the Ogg
 Stream may be assumed to be Vorbis audio and Vorbis audio only.

<p>Regards

Phil

Quoting Linus Walleij <triad at df.lth.se>:

> Sorry for very late answer. Just one issue I wanted to clear regarding
> that name of the MIME transport type (we've had this discussion quite
> some number of times now...):
> 
> Wasn't it so, that the fine folks at IETF recommended two approaches over
> time:
> 
> 1: audio/vorbis doubly defined for BOTH stream (TCP), i.e in ogg-wrapper
>    and RTP transport without wrapper
> 
> 2. audio/vorbis for the stream, ogg-wrapper, vorbis audio data only over
>    for example TCP and
>    audio/rtpvorbis for the vorbis-over-RTP stuff
> 
> Which approach was chosen eventually? Right now it looks like audio/vorbis
> is for RTP and RTP only, this is not good in my opinion, cause even if the
> RFC obviously says: "use this MIME type for RTP transport only", it will
> take about 2 seconds before the eager web site administrator find "Oh! A
> MIME type for Ogg Vorbis! Then I'll serve all my HTTP Ogg files using that
> instead of that application/ogg type they came up with a while back!"
> 
> These people don't read RFCs sadly, they just go by intuition. And
> assigning a MIME type named audio/vorbis will intuitively be used for
> everything, including TCP streams, and this is not good. audio/rtpvorbis
> stands a much lesser chance of being abused.
> 
> Just my way of seing it...
> 
> Linus
> 
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