[linux-dvb] Re : question about definition of section in PSI of Transport stream

manu eallaud at yahoo.fr
Fri Jul 25 12:52:44 CEST 2008


Le 25.07.2008 05:12:53, loody a écrit :
> Hi:
> thanks for your explanation.
> BTW, I find all my Ts only have one section, section_number and
> last_section_number are both 0.
> 
> Would you please tell me where I can get multi-sections TS for
> tracing?
> 
> appreciate your help,
> miloody
> 
> 
> 2008/7/24 Nico Sabbi <Nicola.Sabbi at poste.it>:
> > On Thursday 24 July 2008 11:46:48 loody wrote:
> >> Dear all:
> >> I am reading iso13818-1 right now.
> >> But I cannot figure out what the section mean in PSI.
> >>
> >> In PAT, there is a N loop tell us how many programs in this TS and
> >> the corresponding pid of PMT.
> >> Is section equivalent to program?
> >
> > each item identifies a program and a pid
> >
> >> Suppose there is 10 loop in PAT, and there will be 10 sections,
> >> right?
> >
> > no, the section is only needed to split overly long PATs and / or
> PMTs
> > in smaller pieces
> >
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> >

Other tables like EIT are split over several sections (pid is 0x12 
IIRC)
Bye
Manu




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