[vorbis-dev] Re: Header structure for "video" stream ?

Dan Miller dan at on2.com
Fri Sep 6 08:11:57 PDT 2002

you may also want to check out the www.theora.org site (another xiph project), where we are defining a video /audio ogg bitstream based (initially at least) on the VP3 codec.  This work should map cleanly to other codecs, and hopefully will become the canonical specification for including video in OGG.

        -----Original Message----- 
        From: ChristianHJW [mailto:christianhjw at users.sourceforge.net] 
        Sent: Fri 9/6/2002 9:13 AM 
        To: vorbis-dev at xiph.org 
        Subject: [vorbis-dev] Re: Header structure for "video" stream ?

        "Philippe DUBY" <p.duby at asi.fr> schrieb im Newsbeitrag
        news: at mail.asi.fr...
	> I am writing a tool that gives information on movie files
        (http://avicodec.duby.info/) and I want to add ogg support.
	> I have found full of information on ogg file format, vorbis file format,
        but nothing on the "video" bitstreams that I can found in some ogg files
        (with XVID movies mixed with vorbis audio for example).
	> I can see that the "video" structe looks like this, but I'm searching
        information on what I call Dummy fields :
	> struct OGG_Video
        the Ogg streams you found are not official Ogg streams, but a 'hack' created
        by Tobias Waldvogel ( closed source ) and use a basic Directshow
        implementation mainly targeted for Windows.
        However, Moritz Bunkus has created suitable tools for Linux recently to be
        found here :  http://www.bunkus.org/videotools/ogmtools/index.html
        He is a very nice and clever guy and obviously managed to reverse engineer
        Tobias implementation ( maybe with Tobias' help ?? ), as the files created
        on Linux are about 95% compatible with Tobias' Dshow filters for Windows (
        some minor probs with order of audio streams ). He might be able to help you
        i guess ....
        Sites : http://mcf.sourceforge.net
        MCF mailing lists : news://news.gmane.org
        Soon : www.corecodec.com
        --- >8 ----
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