[linux-dvb] Re: How do you get a DVB-T service ID from a channel ?

[Chris Samuel <chris@csamuel.org>]

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On Monday 22 Sep 2003 10:01 pm, Johannes Stezenbach wrote:

> You could try 'scan -c5'.

Bang on the money, that works:

# scan -c5
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
Frontend can not do INVERSION_AUTO, trying INVERSION_OFF instead
0x0000 0x0234: pmt_pid 0x0104 ABC -- ABC TV 4 (running)
0x0000 0x0233: pmt_pid 0x0103 ABC -- ABC TV 3 (running)
0x0000 0x0230: pmt_pid 0x0101 ABC -- ABC HDTV (running)
0x0000 0x0232: pmt_pid 0x0102 ABC -- ABC TV 2 (running)
0x0000 0x0231: pmt_pid 0x0100 ABC -- ABC TV Melbourne (running)
0x0000 0x0236: pmt_pid 0x0105 ABC -- ABC DiG Radio (running)
dumping lists (6 services)
ABC HDTV                 (0x0230) 01: PCR 0x0902 V 0x0903 TT 0x0905 AC3 0x0904
ABC TV Melbourne         (0x0231) 01: PCR 0x0080 V 0x0200 A 0x028a (eng) TT 
0x0240 AC3 0x0294
ABC TV 2                 (0x0232) 01: PCR 0x0080 V 0x0200 A 0x028a (eng) TT 
0x0240
ABC TV 3                 (0x0233) 01: PCR 0x0080 V 0x0200 A 0x028a (eng) TT 
0x0240
ABC TV 4                 (0x0234) 01: PCR 0x0080 V 0x0200 A 0x028a (eng) TT 
0x0240
ABC DiG Radio            (0x0236) 02: PCR 0x0901          A 0x0907 (eng)
Done.

What's the significance of the 5 ?

> But at least the PAT (PID 0) should be repeated every 100ms or so. Maybe
> it's a CRC problem. Bad signal?

Not sure, I know Greg in Canberra has been having the same problem too..

> you could try to remove the DMX_CHECK_CRC flag in scan.c.

Will give that a try over the next day or so (off to work in a moment).

cheers!
Chris
- -- 
 Chris Samuel  :  http://csamuel.org/  :  Melbourne, VIC

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