[Matroska-general] Re: Streaming mpeg4 video, ogg container

Antonio M ondass at gmail.com
Tue Jul 12 20:45:44 CEST 2005


You can use ffmpeg2theora wtih theora&vorbis for streaming

On 7/11/05, Atamido <paul at msn.com> wrote:
> Stephen Birch wrote:
> > ChristianHJW(christian at matroska.org)@2005-07-09 20:46:
> >>MPEG4 video in OGG container is nothing but a hack without real specs,
> >>called OGM, and without any support from Xiph. None of the existing OGG
> >
> >
> > I read through the ogg specs and it seems to be a well designed
> > container capable of carrying any audio/visual content.  Its also KISS
> > which I like a great deal.
> 
> Well, sorta.  Ogg was designed specifically to carry Vorbis.  And while
> I prefer the design principles of Matroska more, Ogg has a lower
> overhead for low-bitrate audio, like Vorbis.
> 
> Beyond Vorbis, there are specifications for Ogg to also include the
> audio codecs Speex and Flac, and the video codecs Theora and Tarkin
> (non-existent).  No other audio or video codecs have specs for placement
> in Ogg.
> 
> OGM is an interesting hack to get codecs supported by VFW (Video For
> Windows) into an Ogg stream.  It is more or less just wrapping AVI
> inside of Ogg.  There are a few problems with this, including
> ridiculously high overhead.  But the primary problem is this "method"
> exists nowhere in the official specs, and in fact doesn't really have
> any specs to speak of.
> 
> As far as KISS, there are other solutions that fit this model much
> better than OGM.
> 
> >>streaming servers ( Icecast ) support this. You should definitely use
> >>DARWIN and the MP4 container for that, or at least matroska in native
> >
> >
> > I couldn't find specs for the "MP4 container" either.  I was actually
> > hoping to use theora.  I am sick to death of technology being built on
> > patented software.
> 
> You have to pay money to get a hold of the specs for MP4 from the ISO.
> (Or know what to search for in Google)  If you are using Theora, this a
> codec that is native to Ogg, so you shouldn't have an issue with it.
> 
> > Matroska ... who is behind that one?  I see you are the project admin,
> > but what is it all about?
> 
> Matroska is a project to develop an open container that is free for
> anyone to use.  It was designed specifically to be a general container
> for playback and editing, however it shouldn't have any issues with
> being used for streaming video.
> 
> > Thanks for answering, Christian.  Streaming video isnt rocket science
> > and I am irritated by the high degree of confusion out there.
> 
> There is a lot of confusion, and getting it to work can be a real pain
> in the butt.  But if you are willing to put in the time, you can really
> do a lot.
> 
> 
> Atamido
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