[linux-dvb] Bad TS from dvb-t recording?

Peter Fassberg pf at leissner.se
Thu Mar 8 20:13:24 CET 2007


> Ok, I've installed dvbstream but the frequency seems wrong. Here is one row
> from channels.conf generated with dvbscan
>
>
> SVT24:522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_
> INTERVAL_1_8:HIERARCHY_NONE:1249:1248:5180
>
> So, I assume 522000000 is the frequency? But when I run:

Correct.  Mux 1 is on 522 MHz in Motala.


> dvbstream -f 522000000 -o -tm 8 8192 > recordings/test.ts
>
> I got an empty file and this:
> dvbstream v0.5 - (C) Dave Chapman 2001-2004
> Released under the GPL.
> Latest version available from http://www.linuxstb.org/
> Using DVB card "Zarlink MT352 DVB-T"
> tuning DVB-T (in United Kingdom) to -1986010112 Hz
> polling....
> Getting frontend event
> FE_STATUS:
> polling....
> Getting frontend event
> FE_STATUS: FE_HAS_SIGNAL
>
> The frequency seems wrong?

Yes, it seems...

Try using kHz anyway (522000).


I'm using another version of dvbstream:

pf at octopussy:~$ dvbstream -f 730000000 1018 1019
dvbstream v0.6 - (C) Dave Chapman 2001-2004
Released under the GPL.
Latest version available from http://www.linuxstb.org/
Tuning to 730000000 Hz
Using DVB card "DST DVB-T", freq=730000000
tuning DVB-T (in United Kingdom) to 730000000 Hz, Bandwidth: 8
Getting frontend status
Event:  Frequency: 730000000
Signal strength: 25088
SNR: 20480
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC


// Peter




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