[matroska-devel] Re: Important decision about codec ID handling until UCI will be here

Steve Lhomme steve.lhomme at free.fr
Tue Feb 11 21:23:30 CET 2003

ChristianHJW wrote:
> "Steve Lhomme" <steve.lhomme at free.fr> schrieb im Newsbeitrag
> news:3E480FFE.60908 at free.fr...
>>For the codec IDs/private data, we should progress step by step.
>>First we'll need ACM/VCM compatibility and we can have MPEG Audio
>>compatibility in no time.
>>For MPEG Audio we have :
>>- MPEG AUDIO LAYER 1, no private data
>>- MPEG AUDIO LAYER 2, no private data
>>- MPEG AUDIO LAYER 3, no private data
> Steve, i somehow feel we should differentiate between VBR/ABR and CBR for
> MPEG1/2 layer 2 and 3, as some apps/decoders may be able to handle both, and
> some only CBR ?

You expect this ancient stuff to support matroska file reading ?
Also there is no way for such players to know when a real MP3 is CBR or 
not, the situation won't change much with an additional container.


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