[linux-dvb] Disassembling the EIT

Robert Schlabbach robert_s at gmx.net
Tue Apr 4 02:59:32 CEST 2006


From: "Felix Domke" <tmbinc at elitedvb.net>
> Original Network ID (=ONID), ServiceID (=SID) should uniquely identify a
> service. (In reality, it's not so easy, but let us assume it's true).
>
> every ONID:SID (i.e.: "service", or "service definition") has an
> associated TSID, i.e. the TSID where this service can be found. There
> are no two ONID:SID combinations with different TSIDs.

I think the above is wrong. From ETSI EN 300 468 V1.7.1:

| The combination of original_network_id and transport_stream_id allow
| each TS to be uniquely identified throughout the ETS application area.

| service_id: This is a 16-bit field which uniquely identifies a
| service within a TS.

So it is actually the triple ONID:TSID:SID which uniquely identifies a
service, not just the ONID:SID pair as you wrote.

Regards,
--
Robert Schlabbach
e-mail: robert_s at gmx.net
Berlin, Germany




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