[vorbis] Ogg spec clarification

Aaron Knauf aknauf at xtra.co.nz
Tue Apr 22 02:01:56 PDT 2003



Thanks - I'll be sure to support it, then.

:-)

ADK

Michael Smith wrote:

>On Tuesday 22 April 2003 18:38, Aaron Knauf wrote:
>  
>
>>Hi,
>>
>>I am considering implementing the Ogg bitstream spec.  Having read the
>>spec, I am left with just one matter requiring clarification (making it
>>a pretty well written spec, in my book):
>>
>>Can a packet begin on the same page as the previous packet ends on?  The
>>spec does not appear to be explicit about this.
>>
>>It would seem that I could indicate that there were (e.g.) 3 segments in
>>my page, with lengths 30, 255, 42.  The first segment, being less than
>>255 bytes, would be the end of the first packet, the next segment would
>>therefore be the first in the next packet, with the remaining segment
>>being the last in the second packet.
>>
>>Obviously, a decoder would have to explicitly support this.  Given that
>>the spec does not explicitly allow (or disallow) this behaviour, can I
>>(or should I) expect implementations to support this?  Is it actually
>>legal?
>>    
>>
>
>This is both legal and common, it's definately a requirement.
>
>Mike
>
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