Vorbis - Sep 2001 - a few questions

>http://www.m4if.org/resources.html
>
See also 
http://www.mpeg4ip.net/
which has a lot of open source and available MPEG-4
code available.

The licensing issue is still a mess, although they
hope to make it at least coherent "real soon now". Use
at your own risk.

BTW, there is no MP4. The equivalent audio codec is the 
Dolby AAC.

Regards
Marshall Eubanks
>appears it's not "legal" to just hand out the standard, you
can order it via
>the above link...but reference
>software is available on the web...as far as I know though...it is in
>parts...
>Video at Microsoft, Audio at University of Hannover and Systems...I
don't
>know.
>I know of nowhere where an integrated VM (verification model) of MPEG-4
>has ever existed.
>
>Directshow SDK I believe has tutorials on how to create plugins...last I
>heard,
>called filtergraphs, to add an algorithm.
>
> MuseMagic
> 1.240.209.7765 voicemail/fax
>  thalia@musemagic.com
>  www.musemagic.com
>
>
>
>-----Original Message-----
>From: owner-vorbis@xiph.org [mailto:owner-vorbis@xiph.org]On Behalf Of
>Andrew Voznytsa
>Sent: Friday, September 14, 2001 3:22 AM
>To: vorbis@xiph.org
>Subject: [vorbis] a few questions
>
>
>Hi all,
>
>i'm new here and i've next questions:
>
>  1. does anyone work on ingeration with mp4 file format ? if yes, where can
>i find specs ? i need DecoderSpecificInfo description, value of
>DecoderConfigDescriptor::ObjectTypeIndication, etc.
>  2. second, is somewhere specs/descriptions of "standardized"
media
>types/sub types/format types for ogg/vorbis in DirectShow ?
>
>AV
>
>
>
>
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Marshall Eubanks

tme@21rst-century.com

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Andrew Voznytsa (avoznytsa@yahoo.com) wrote :
>       i've implemented some directshow-based mp4 mux/demux, etc and i
want add
>       support for multiplexing/demultiplexing vorbis audio streams
into/from mp4
>       file. so, my questions is: does anyone working on something like this
? if
>       yes, i'd like to know some specific things to be compatible with
existing
>       implementation. 
> 
>       the same things with directshow, i can write directshow based vorbis
decoder
>       in some short time, but i'd like be compatible with current
implementations
>       if any. 
>       and i'm interesting: is somewhere defined "standard"
format types for
>       directshow-based vorbis decoder ? 
There is a package with OGG demultiplexer and Vorbis (de)coder for DirectX at :
http://sourceforge.net/projects/mediaxw


-- 
David Balazic
--------------
"Be excellent to each other." - Bill S. Preston, Esq., &
"Ted" Theodore Logan
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