[vorbis-dev] Re: [theora-dev] Re: Ogg Internet Drafts - create application/ogg-vorbis, application/ogg-tarkin, etc.
Silvia.Pfeiffer at csiro.au
Silvia.Pfeiffer at csiro.au
Fri Jan 3 05:24:19 PST 2003
Thanks, Kevin, for the correction. Sorry, I should have refrained from
going down that track. I guess what I meant was that the encoders are
not free. But that has no effect on this discussion anyway.
Kevin Marks wrote:
> On Friday, January 3, 2003, at 04:49 AM, Silvia.Pfeiffer at csiro.au wrote:
> > 1) "application/ogg":
> > On the one hand, we should have the generic MIME type "application/ogg"
> > and the generic file extension ".ogg" for anything that uses the Ogg
> > container format. I guess for the moment there is no generic
> > application
> > that can handle all existing defined ogg media mappings (such as
> > ogg-speex, ogg-vorbis, ogg-theora). But that can of course be built and
> > then we are on a line with Quicktime, Microsoft media player and
> > RealPlayer.
> > Those three by the way can understand several MIME types, e.g.
> > Quicktime
> > understands "video/quicktime" but also things like "audio/aiff",
> > "audio/wav", "audio/midi", "video/avi", "audio/mpeg", and "video/mpeg".
> > One word of caution here, though: while those three each try to
> > dominate
> > the market with their application and do not want others to use their
> > container format, Ogg is open and many people have started picking up
> > the Ogg container format for their encoding format by only having to
> > define a media mapping. Therefore, it will be difficult to maintain a
> > generic application that will be able to interprete any random Ogg
> > file,
> > because the Ogg container by itself does not know what kind of data it
> > carries.
> Silvia, this is wildly wrong. QT really wants lots of people to use
> it's container format. That's why it is open and freely licensable.
> Even MS are allowing licensing of asf now.
> The reason QT accepts those MIME type is that it can import the
> respective file formats and create a QT Movie that references the
> source files.
> Far from trying to dominate the market with our application, Apple
> gives away a full SDK with sample code for you build your own playback
> and editing applications with QT.
> Being able to parse the container format, and having codecs available
> to play back the contents are separate problems, and spawning MIME
> types for every codec variation is going to be very messy.
> You should define your MIME types by application domain, not by
> encoding format
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