[ogg-dev] fishead granule rates

Conrad Parker conrad at metadecks.org
Mon Mar 24 08:05:36 PDT 2008


On 22/03/2008, ogg.k.ogg.k at googlemail.com <ogg.k.ogg.k at googlemail.com> wrote:
> Hi,
>
>  What are the two granule rates in a fishead packet supposed to be for ?
>  Since each of the streams has a corresponding fisbone packet with its own
>  granulerate in it, and they can be all different, wha does the presentationtime
>  num/den means ? Also for hte basetime num/den, since the UTC time which
>  is also present in fishead seems to be a textual representation rather than a
>  linear count ?

These are not granulerates, they are time stamps. They are defined in:

http://www.annodex.net/TR/draft-pfeiffer-annodex-02.html#anchor7

cheers,

Conrad.


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