[linux-dvb] wanting to contribute dvb-t tuning information but small problemwith scan

[Christoph Burger-Scheidlin <c.burger-scheidlin@iu-bremen.de>]

Hello,

Using the scan utility from linuxtv-dvb-apps-1.1.0 I realised that my
region was not found in the sample tuning information. Looking on the
internet I obtained the neccessary information to write such a file and
would like to contribute it.

Using those files, I encoutnered a small problem with scan however. The
first three lines work correctly. However, scan seems to be running in a
loop regarding the 4th line.


As you can see from the output below, scan tries to tune to 530000000 Hz
without that frequency being present in the configuration file. If left
unchecked, the last part (starting with the tuning failed line) is
repeated as long as I left it running, so presumably endlessly. If
broken with CTRL-C it will add the four channels that were found (Das
Erste, Phoenix, Eins Extra, NDR) multiple times.

My question is, if I made a mistake in writing these tuning information,
causing the 530000000 tuning line to appear and how I can best fix it,
such that the tuning information I outlined below can become part of the
dvb utilities.

Thank you for you attention,

Christoph Burger-Scheidlin

The output of scan is as follows:

--- begin output

scanning de-Braunschweig
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 490000000 0 2 0 1 1 3 0
initial transponder 498000000 0 2 0 1 1 3 0
initial transponder 786000000 0 2 0 1 1 3 0
initial transponder 658000000 0 2 0 1 1 3 0
>>> tune to:
490000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_NONE:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE
0x0000 0x0205: pmt_pid 0x0250 ZDFmobil -- Doku/KiKa (running)
0x0000 0x0203: pmt_pid 0x0230 ZDFmobil -- Info/3sat (running)
0x0000 0x0202: pmt_pid 0x0220 ZDFmobil -- ZDF (running)
WARNING: filter timeout pid 0x0010
>>> tune to:
498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_NONE:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE
0x0000 0x4015: pmt_pid 0x0150 RTL World -- RTL Television (running)
0x0000 0x4016: pmt_pid 0x0160 RTL World -- RTL2 (running)
0x0000 0x4017: pmt_pid 0x0170 RTL World -- Super RTL (running)
0x0000 0x4022: pmt_pid 0x0220 RTL World -- VOX (running)
Network Name 'RTL World'
>>> tune to:
786000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_NONE:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE
0x0000 0x0001: pmt_pid 0x1010 ARD -- Das Erste (running)
0x0000 0x0003: pmt_pid 0x1030 ARD -- Phoenix (running)
0x0000 0x0004: pmt_pid 0x1040 ARD -- Eins Extra (running)
0x0000 0x0081: pmt_pid 0x1020 ARD -- NDR FS NDS (running)
Network Name 'Niedersachsen 2'
>>> tune to:
658000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_NONE:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE
0x0000 0x400e: pmt_pid 0x00e0 ProSiebenSat.1 -- N24 (running)
0x0000 0x400a: pmt_pid 0x00a0 ProSiebenSat.1 -- KABEL1 (running)
0x0000 0x4013: pmt_pid 0x0130 ProSiebenSat.1 -- ProSieben (running)
0x0000 0x4018: pmt_pid 0x0180 ProSiebenSat.1 -- SAT.1 (running)
Network Name 'ProSiebenSat.1'
>>> tune to:
530000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to:
530000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE (tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=786000000
>>> tune to:
786000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_4:HIERARCHY_NONE (tuning failed)
0x0000 0x0001: pmt_pid 0x1010 ARD -- Das Erste (running)
0x0000 0x0003: pmt_pid 0x1030 ARD -- Phoenix (running)
0x0000 0x0004: pmt_pid 0x1040 ARD -- Eins Extra (running)
0x0000 0x0081: pmt_pid 0x1020 ARD -- NDR FS NDS (running)
Network Name 'Niedersachsen 2'

--- end output


--- file de-Braunschweig:

# DVB-T Braunschweig -- info from http://www.skyplus.seyen.de/DVB-T.html
# T freq    bw   fec_hi fec_lo mod transmission-mode guard-interval
hierarchy
T 490000000 8MHz 2/3 NONE QAM16 8k 1/4 NONE     # ZDF / Info / Doku /
Digitext
T 498000000 8MHz 2/3 NONE QAM16 8k 1/4 NONE     # RTL / RTL2 / SRTL /
VOX
T 658000000 8MHz 2/3 NONE QAM16 8k 1/4 NONE     # SAT1 / N24 / Pro7 /
KABEL
T 786000000 8MHz 2/3 NONE QAM16 8k 1/4 NONE     # NDR / ARD / Eins Ex /
PHOENIX

--- end file



--- file de-Hannover:

# DVB-T Hannover -- info from http://www.skyplus.seyen.de/DVB-T.html
# T freq    bw   fec_hi fec_lo mod transmission-mode guard-interval
hierarchy
T 490000000 8MHz 2/3 NONE QAM16 8k 1/4 NONE     # ZDF / Info / Doku /
Digitext
T 498000000 8MHz 2/3 NONE QAM16 8k 1/4 NONE     # RTL / RTL2 / SRTL /
VOX
T 530000000 8MHz 2/3 NONE QAM16 8k 1/4 NONE     # NDR / ARD / Eins Ex /
PHOENIX
T 658000000 8MHz 2/3 NONE QAM16 8k 1/4 NONE     # SAT1 / N24 / Pro7 /
KABEL

--- end file