frankio wrote: > Manu Abraham wrote: >> Francesco Schiavarelli wrote: >> >>> Johannes Stezenbach wrote: >>> >>>> On Sat, Nov 03, 2007, Manu Abraham wrote: >>>> >>>>> If you see H.2 and H.3, the difference is between CCM and VCM >>>>> (Note: that both are cases of multiple "TS's") >>>>> >>>>> H.2 (CCM) is applicable for DVB-T muxes. Here there is a HP/LP stream >>>>> selection in some fashion combined with the merger/slicer where >>>>> stream id is used. >>>> What makes you think there is HP/LP involved? All H.2 says >>>> is that two DVB-T streams are transmitted using one >>>> DVB-S2 transponder to a DVB-T transmitter. The DVB-T transmitter >>>> could then transmit them on two different frequencies in >>>> non-hierarchical mode. >>>> >>>> (Indeed H.2 says "two DTT MUXes at 24 Mbit/s each" indicating >>>> they are not hierarchical because you can't get that >>>> bitrate in DVB-T hierarchical mode. But even if it were DVB-T >>>> hierarchical mode it has nothing to do with DVB-S2 backwards >>>> compatible mode hierarchical modulation.) >>>> >>>> >>> I agree with you, Johannes. >>> There is no evidence of hierarchical modulation, nevertheless the two >>> streams I was looking at had the same channel protection that is no >>> HP/LP, and I was told it was DVB-S2 CCM. >>> >>> When the transponder will be up again I'll be able to do more tests. >>> >> >> Yeah, looks more like that, will have a patch soon to do some tests >> for it. >> STM's comments confirm that. >> >> Manu >> >> > Now the beam is up on 13.0E 11373 H 27500 8PSK 2/3 > It is made up of 2 DTT muxes (no HP/LP) > ISI1 16QAM 1/2 1/4 9.953 Mbps > ISI2 64QAM 5/6 1/4 24.882 Mbps > > Unfortunately I don't know how long it will last, so let the tests > begin! :-) > I'll wait for the patch. >
In the meantime, can you please pull a copy of the multiproto tree http://jusst.de/hg/multiproto/ and try to parse the S2 satellite delivery system descriptor ? dvbsnoop, or even libucsi will be able to do this. > thanks, > Francesco > > Regards, Manu _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
