On 21.03.2013 14:07, Teemu Suikki wrote:
A bit more into this..
I tried dvbsnooping different satellites, I noticed some difference.
This is from Thor, 1.0W:
-----------------------
Transport_stream_ID: 4 (0x0004)
Original_network_ID: 70 (0x0046) [= 1 degree W | Telenor]
reserved_1: 15 (0x0f)
Transport_descriptor_length: 191 (0x00bf)
DVB-DescriptorTag: 67 (0x43) [=
satellite_delivery_system_descriptor]
descriptor_length: 11 (0x0b)
Frequency: 17967360 (= 11.22900 GHz)
Orbital_position: 16 (= 1.0)
West_East_flag: 0 (0x00) [= WEST]
Polarisation: 0 (0x00) [= linear - horizontal]
Kind: 0 (0x00) [= DVB-S]
fixed ('00'): 0 (0x00)
Modulation_type: 1 (0x01) [= QPSK]
Symbol_rate: 2379776 (= 24.5000)
FEC_inner: 5 (0x05) [= 7/8 conv. code rate]
DVB-DescriptorTag: 65 (0x41) [= service_list_descriptor]
descriptor_length: 30 (0x1e)
service_ID: 418 (0x01a2)[ --> refers to PMT program_number]
service_type: 1 (0x01) [= digital television service]
(other sid's follow, cut away for clarity)
----------------------------
But this "faulty" transponder in S13E:
----------------------------
Transport_stream_ID: 7500 (0x1d4c)
Original_network_ID: 64511 (0xfbff) [= Sky Italia | Sky Italia Spa.]
reserved_1: 15 (0x0f)
Transport_descriptor_length: 54 (0x0036)
DVB-DescriptorTag: 65 (0x41) [= service_list_descriptor]
descriptor_length: 39 (0x27)
service_ID: 4117 (0x1015)[ --> refers to PMT program_number]
service_type: 25 (0x19) [= advanced codec HD digital
television service]
(other sid's follow, cut away for clarity)
DVB-DescriptorTag: 67 (0x43) [=
satellite_delivery_system_descriptor]
descriptor_length: 11 (0x0b)
Frequency: 19007128 (= 12.20698 GHz)
Orbital_position: 304 (= 13.0)
West_East_flag: 1 (0x01) [= EAST]
Polarisation: 0 (0x00) [= linear - horizontal]
Kind: 1 (0x01) [= DVB-S2]
Roll Off Faktor: 0 (0x00) [= Alpha 0.35]
Modulation_type: 2 (0x02) [= 8PSK]
Symbol_rate: 2723840 (= 29.9000)
FEC_inner: 3 (0x03) [= 3/4 conv. code rate]
----------------------------
So.. DVB-DescriptorTag's 65 and 67 appear in opposite order! Could it
be that VDR has transponder data still uninitialized when it is
scanning the service id, because 67 is not arrived yet?
I just checked, but VDR doesn't parse the service_list_descriptor. So it shouldn't
matter whether it comes before or after the satellite_delivery_system_descriptor.
Klaus
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