[vlc] Re: Theora

[Jason Luka]

Which OS are you trying to run it with?

ChristianHJW wrote:

> arthurreeder wrote:
>
>> I've downloaded the newest version of the theora codec, but It 
>> doesn't display video in vlc.  It says theora is supported on your 
>> site, maybe I'm doing it wrong?
>> I encoded it with VirtualDubMod, and muxed it in a ogm file, with 
>> vorbis audio.  Am I missing anything?
>>
> Yes. What you were producing is everything, but not a valid Theora 
> file. The VCM version of Theora is in fact still ON2 VP3 in its old 
> form, and the OGM container as being used from VirtualdubMod is not 
> coming from Xiph, and was never approved by them either, but is a 
> Windows centric container implementation *based* on Ogg, made by a guy 
> called Tobias Waldvogel.
>
> The file may play fine on Windows via DirectShow, if you change the 
> FourCC of the video stream to the one ON2 VP3 was using ( dont know 
> it, sorry ), and get an old version of the necessary DirectShow 
> filter. Tobias' OggDS filter should be able to connect to the ON2 
> DShow filter just fine, like it was coming from an AVI ( OGM is mainly 
> using DShow and AVI structures to identify codecs ).
>
> VLC may also be able to play this file after some changes, like using 
> its built-in OGM parser code to find out the FourCC and then decode it 
> using the Theora lib, but again, this file of yours has nothing to do 
> with a valid Ogg Theora file ....
>
> ChristianHJW
>
>

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