[linux-dvb] Re: can't record some channels with vdr and anova-s budget card.

[claas+linuxtv-dvb@jucs-kramkiste.de]

Received

> First check the signal by running apps/szap/femon along with vdr.
tvt1:/opt/vdr/DVB/apps/szap# ./femon
using '/dev/dvb/adapter0/frontend0'
FE: STV0299/TSA5059/SL1935 based (SAT)
status 1f | signal a9f2 | snr e142 | ber 0000ff00 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9c9 | snr e15d | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9fb | snr e136 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9d3 | snr e127 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9f1 | snr e148 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9f1 | snr e130 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9fe | snr e12d | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9fd | snr e12d | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9d8 | snr e133 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a8c0 | snr e151 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9fb | snr e13c | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a9b8 | snr e12d | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK

This was done @22:24. Is there any documentation other than the C source 
file to explain what the above values show?

> Does it help to #if 0 the frequency beding stuff in dvb_frontend.c?
I've patched dvb_frontend.c like this:

static
void dvb_bend_frequency (struct dvb_frontend_data *this_fe, int recursive)
{
#if 1
       this_fe->bending = 0;
#else
       <original code>
#endif
}

I've done two parallel recordings after the above patch. The recording was 
done from 17:55 - 21:00. Here's the result:

RTL was recorded without any errors.

SAT1 was recorded with these errors:

Oct 13 21:00:00 tvt1 vdr[795]: cTS2PES got 1403 TS errors, 9577 TS 
continuity errors
Oct 13 21:00:00 tvt1 vdr[795]: cTS2PES got 83 TS errors, 3768 TS continuity 
errors
Oct 13 21:00:00 tvt1 vdr[795]: buffer stats: 143068 (0%) used

---
Claas Hilbrecht
http://www.jucs-kramkiste.de



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