[M4IF Technotes] question about bab_type
Herbert Thoma
tma iis.fhg.de
Wed Mar 26 10:56:13 EST 2003
tetsuo kosuge schrieb:
>
> Hello MPEG-4 Experts:
> I have a question about bab_type.
> I don't understand how to use of Tbl.B-27;
> The horizontal row is Shape Mode, isn't it ?
> And '1'-'001' is VLC-Code.
> What mean of the vertical row (indicates 1-80) ?
That's the 'context'. See section 7.5.2.1.1 of ISO/IEC 14496-2:2001.
Example: If you have acontext of 4 (computed from the surrounding BABs)
and get a VLC of 1 then it means BABtype 2.
Regards,
Herbert.
> Thanks a lot!
> Tetuso
>
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Herbert Thoma
FhG-IIS A, Studio Department
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