similar to: Re: Ogg Internet Drafts - create application/ogg-vorbis, application/ogg-tarkin, etc.

just for the record -- I think you mean video/theora when you mention vorbis+VP3. Vp3 is becoming Theora. Tarkin is another video codec project at Xiph. As for this whole MIME type issue, can someone enlighten me as to how this problem is addressed with Quicktime, Microsoft, and RealNetworks plug-ins today? Also, does an MPEG4 tag specify which audio codec is used? thanks - dan

> From: David Wheeler [mailto:dwheeler@ida.org] ... > > The #1 use of a MIME type is to launch an application to process > the data. If the MIME type doesn't include information on the > container format, then the application won't know what to do with > the result. You might as well ask, how does an application know what to do when it's launched from your

Thanks, Dan, for understanding what I meant with that sentence and clarifying it. I was indeed thinking of "video/theora" as MIME type to signify a theora & vorbis a/v-stream. If "Theora" is not the right name for this integrated stream, please come up with another one that is readable - I strongly dislike "oggvth". Silvia. -----Original Message----- From: Dan

On Thu, 2003-01-02 at 10:48, David Wheeler wrote: > > > Unfortunately, an Ogg file can (and will) contain different codecs in > > the same file. Imagine a file that contains two chained groups of > > multiplexed bitstreams. The first group contains vorbis, vp3, speex, and > > subtitle streams. The second group contains FLAC, MNG, and MIDI streams. > > [The fact

On Thu, 2003-01-02 at 10:48, David Wheeler wrote: > > > Unfortunately, an Ogg file can (and will) contain different codecs in > > the same file. Imagine a file that contains two chained groups of > > multiplexed bitstreams. The first group contains vorbis, vp3, speex, and > > subtitle streams. The second group contains FLAC, MNG, and MIDI streams. > > [The fact

Fredag, 3 januar 2003, skrev du: >Ogg has always appeared to me to correspond only to the _track media_ >and _sample_ layers of a QuickTime movie. So you still need to know >what all the CODECs are and how to use them individually to >manipulate what should be general data in the file. Please, somebody >correct me if I'm wrong. I have asked the same questions here on the

Dear David, I hope it's ok to forward your email to the developer lists. I have not seen a comprehensive scheme for MIME type naming and file extensions for ogg files yet - please anybody put me in the picture if there is. However, I have seen application/x-ogg used for ogg-vorbis files, which is according to MIME type registration rules an unregistered and experimental MIME type (see

Dear David, I hope it's ok to forward your email to the developer lists. I have not seen a comprehensive scheme for MIME type naming and file extensions for ogg files yet - please anybody put me in the picture if there is. However, I have seen application/x-ogg used for ogg-vorbis files, which is according to MIME type registration rules an unregistered and experimental MIME type (see

Dear David, I hope it's ok to forward your email to the developer lists. I have not seen a comprehensive scheme for MIME type naming and file extensions for ogg files yet - please anybody put me in the picture if there is. However, I have seen application/x-ogg used for ogg-vorbis files, which is according to MIME type registration rules an unregistered and experimental MIME type (see

>>> Ideally? You seem to be stuck in a world of operating systems that need >>> a specific filename extension to identify a file type. >> >> Sounds like you're a Mac user. > > <snip> > > ...determining a file type is not a task for the OS... For the past few years, users of the QuickTime container have faced a similar dilemma to what we have

[pardon me if this retreads some ground, but I'm just getting up to speed on this issue] so am I to understand -- application/ogg is for downloading, and will invoke an app that supposedly can parse *any* ogg file -- audio/vorbis is for streaming -- but this is narrowly defined as vorbis audio only. Presumably the thinking is that a streaming application is likely to be less

And this is what the application/ogg MIME descriptor is supposed to look like. Same request for comments here... Linus Walleij --------- MIME media type name: application MIME subtype name: ogg Required parameters: none Optional parameters: none Encoding Considerations: The OggSQUISH data is binary data, and must be encoded for non-binary transport; the Base64

The transport type application/ogg may now be used in applications. The IANA has assigned it in their namespace, so start adding it at will. See mail below. Linus ---------- Forwarded message ---------- Date: Mon, 10 Feb 2003 12:23:47 -0800 From: IANA <iana@iana.org> To: triad@df.lth.se Cc: Allison Mankin <mankin@psg.com>, Scott Bradner <sob@harvard.edu> Subject: RFC-to-be:

Forwarding a conversation with a company that provides a management tool for transcoding Vorbis files to MP3 when communicating with the Nomad Jukeboxes from Creative. Good initiative, and probably sounds OK too, but would be even better with FLAC, so I'll ask about it. Linus ---------------------------- Original Message ---------------------------- Subject: Re: Vorbis question From:

This is the first draft of the audio/vorbis media registration form to be handled to the IANA. PLEASE comment extensively, even minor spelling mistakes etc are to be stamped out of this I hope. A media type for application/ogg (or should it be application/oggsquish?) will be created separately. I would be very happy if someone could supply the 4-letter filetype code used by MacIntosh .ogg files.

This is my previous conversation with Colin Perkins at IETF regarding audio/vorbis. For interested parties. Last two paragraphs are the most interesting ones. Linus -----Vidarebefordrat meddelande----- From: Colin Perkins <csp@isi.edu> To: Linus Walleij <triad@df.lth.se> Subject: Re: Regarding non-streaming Ogg Date: 20 Jun 2001 16:17:34 -0400 --> Linus Walleij writes:

Good day, FYI, I've just sent the attached email to IETF to progress our I-Ds. There are also links to updated documents in this email. Cheers, Silvia. -------- Original Message -------- Subject: New I-Ds for Ogg technologies (Vorbis over RTP, Ogg file format, Mimetypes) Date: Sun, 12 Jan 2003 01:36:31 +1100 From: Silvia Pfeiffer <Silvia.Pfeiffer@csiro.au> Organization: CSIRO To: AVT

Good day, FYI, I've just sent the attached email to IETF to progress our I-Ds. There are also links to updated documents in this email. Cheers, Silvia. -------- Original Message -------- Subject: New I-Ds for Ogg technologies (Vorbis over RTP, Ogg file format, Mimetypes) Date: Sun, 12 Jan 2003 01:36:31 +1100 From: Silvia Pfeiffer <Silvia.Pfeiffer@csiro.au> Organization: CSIRO To: AVT

After much bureucracy in the IETF hierarchies and sort of chaos-like organization, it seems I have got the matter so far that a four-week last call will be issued so that application/ogg finally becomes a standard. Don't jump of joy just yet, but I have feelings that it actually may happen now. :-) The "last call" is not yet issued! (They started discussing adding this MIME-type in

The IETF passed the application/ogg MIME type some days ago. I couldn't bring you the news earlier because of the MS SQL worm that has been wreaking havoc all over my local networks. The IETF wants some clarifications in Silivias draft for the Ogg stream format, but apart from that I think it will also be passed soon. The RFC and IANA registration of this mimetype will probably be published