sp4rkie / docsis-cable-load-monitor Goto Github PK

Hello sparkie,

i cannot record the data, because dvbtune is hanging.

E.g.:
dvbtune -c 0 -f 698000000 -s 6952 -qam 64
Using DVB card "Sundtek DVB-C (III)"
tuning DVB-C to 698000000, srate=6952000
polling....
polling....
polling....

I can switch the frequence with mediaclient:

/opt/bin/mediaclient -d /dev/dvb/adapter0/frontend0 -m DVBC -f 698000000 -M Q64 -S 6952000
Using device: /dev/dvb/adapter0/frontend0
Checking for lock:
. [LOCKED]

Do you have an idea, what could be the reason?

Thanks
Andi

Hi!
I have been trying to get it to work, but the output is always 0.
Logs are below. Any ideas? Thank you for your work.

sh CableLoadMonitor -f 770:546:554:562
reading downstream channel frequencies from command line
downstream channel frequencies now in use: [ 4 ] 770 546 554 562
(re)creating the channel frequency cache implies renewal of the RRD base
create a RRD base with RRA step size of 10
recording history size: 7 day(s) 0 hour(s) 0 minute(s) 0 second(s)
point in time where the displayed graph ends: now
time span covered by the displayed graph: 3600s
12:21:53: 0 0 0 0 0
12:22:03: 0^C

====== [ 8643 ] program start [Sat Jan 12 12:21:52 CET 2019] on osmc ======
CableLoadMonitor|-f|770:546:554:562||||||||||||||||||

reading downstream channel frequencies from command line
downstream channel frequencies now in use: [ 4 ] 770 546 554 562
(re)creating the channel frequency cache implies renewal of the RRD base
create a RRD base with RRA step size of 10
recording history size: 7 day(s) 0 hour(s) 0 minute(s) 0 second(s)
point in time where the displayed graph ends: now
time span covered by the displayed graph: 3600s
CMD: /bin/bash -c 'rrdtool create /home/osmc/CableLoadMonitor.rrd -s 1
DS:f00:GAUGE:120:U:U
DS:f01:GAUGE:120:U:U
DS:f02:GAUGE:120:U:U
DS:f03:GAUGE:120:U:U
DS:sum:GAUGE:120:U:U
RRA:AVERAGE:0.1:10:604800' 2>&1
CMD: /bin/bash -c 'rrdtool graph /home/osmc/CableLoadMonitor.png_ -a PNG -l 0 -u 200000000
--title="Graph generated at date"
-w 1500 -h 800
--end now --start end-3600s

--color "ARROW#ffffff"
--color "BACK#000000"
--color "CANVAS#000000"
--color "GRID#ffffff"
--color "MGRID#ffffff"
--color "FONT#ffffff"
--color "AXIS#ffffff"
--color "FRAME#ffffff"
--border 1



DEF:f00=/home/osmc/CableLoadMonitor.rrd:f00:AVERAGE
DEF:f01=/home/osmc/CableLoadMonitor.rrd:f01:AVERAGE
DEF:f02=/home/osmc/CableLoadMonitor.rrd:f02:AVERAGE
DEF:f03=/home/osmc/CableLoadMonitor.rrd:f03:AVERAGE
DEF:sum=/home/osmc/CableLoadMonitor.rrd:sum:AVERAGE


"LINE:f00#ff0000:770"
"LINE:f01#ff0000:546"
"LINE:f02#0000ff:554"
"LINE:f03#0000ff:562"

"LINE:sum#00ff00:sum\l"

"GPRINT:f00:MAX:%3.0lf %s"
"GPRINT:f01:MAX:%3.0lf %s"
"GPRINT:f02:MAX:%3.0lf %s"
"GPRINT:f03:MAX:%3.0lf %s"
"GPRINT:sum:MAX:%3.0lf %s"" max\l"
"GPRINT:f00:LAST:%3.0lf %s"
"GPRINT:f01:LAST:%3.0lf %s"
"GPRINT:f02:LAST:%3.0lf %s"
"GPRINT:f03:LAST:%3.0lf %s"
"GPRINT:sum:LAST:%3.0lf %s"" last\l"
' 2>&1
1581x901
CMD: /bin/bash -c 'mv /home/osmc/CableLoadMonitor.png_ /home/osmc/CableLoadMonitor.png' 2>&1
12:21:53: CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 10 dvbtune -f 770000000 -s 6952 -qam 256' 2>&1
scanning output for: <Bit error rate: ([0-9]+)$>
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Using DVB card "Silicon Labs Si2168"
tuning DVB-C to 770000000, srate=6952000
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Event: Frequency: 780600000
SymbolRate: 6952000
FEC_inner: 9

Bit error rate: 0
first match: <0>
Signal strength: 0
SNR: 0
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 1 dvbsnoop -s bandwidth 8190 -n 80000' 2>&1
scanning output for: <^## PID:.*Avrg: +([^ ]+) >
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
dvbsnoop V1.4.50 -- http://dvbsnoop.sourceforge.net/

PID bandwidth statistics...
PID: 8190 (0x1ffe) - max packet count: 80000

PID: 8190 (0x1ffe) bad/total packets: 0/0 (= nan%) Avrg: 0.000 kbit/s

first match: <0.000>
... aborted (Signal: 15)
0CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 10 dvbtune -f 546000000 -s 6952 -qam 256' 2>&1
scanning output for: <Bit error rate: ([0-9]+)$>
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Using DVB card "Silicon Labs Si2168"
tuning DVB-C to 546000000, srate=6952000
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Event: Frequency: 556600000
SymbolRate: 6952000
FEC_inner: 9

Bit error rate: 0
first match: <0>
Signal strength: 0
SNR: 0
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 1 dvbsnoop -s bandwidth 8190 -n 80000' 2>&1
scanning output for: <^## PID:.*Avrg: +([^ ]+) >
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
dvbsnoop V1.4.50 -- http://dvbsnoop.sourceforge.net/

PID bandwidth statistics...
PID: 8190 (0x1ffe) - max packet count: 80000

PID: 8190 (0x1ffe) bad/total packets: 0/0 (= nan%) Avrg: 0.000 kbit/s

first match: <0.000>
... aborted (Signal: 15)
0CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 10 dvbtune -f 554000000 -s 6952 -qam 256' 2>&1
scanning output for: <Bit error rate: ([0-9]+)$>
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Using DVB card "Silicon Labs Si2168"
tuning DVB-C to 554000000, srate=6952000
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Event: Frequency: 564600000
SymbolRate: 6952000
FEC_inner: 9

Bit error rate: 0
first match: <0>
Signal strength: 0
SNR: 0
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 1 dvbsnoop -s bandwidth 8190 -n 80000' 2>&1
scanning output for: <^## PID:.*Avrg: +([^ ]+) >
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
dvbsnoop V1.4.50 -- http://dvbsnoop.sourceforge.net/

PID bandwidth statistics...
PID: 8190 (0x1ffe) - max packet count: 80000

PID: 8190 (0x1ffe) bad/total packets: 0/0 (= nan%) Avrg: 0.000 kbit/s

first match: <0.000>
... aborted (Signal: 15)
0CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 10 dvbtune -f 562000000 -s 6952 -qam 256' 2>&1
scanning output for: <Bit error rate: ([0-9]+)$>
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Using DVB card "Silicon Labs Si2168"
tuning DVB-C to 562000000, srate=6952000
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Event: Frequency: 572600000
SymbolRate: 6952000
FEC_inner: 9

Bit error rate: 0
first match: <0>
Signal strength: 0
SNR: 0
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 1 dvbsnoop -s bandwidth 8190 -n 80000' 2>&1
scanning output for: <^## PID:.*Avrg: +([^ ]+) >
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
dvbsnoop V1.4.50 -- http://dvbsnoop.sourceforge.net/

PID bandwidth statistics...
PID: 8190 (0x1ffe) - max packet count: 80000

PID: 8190 (0x1ffe) bad/total packets: 0/0 (= nan%) Avrg: 0.000 kbit/s

first match: <0.000>
... aborted (Signal: 15)
0CMD: /bin/bash -c 'rrdtool update /home/osmc/CableLoadMonitor.rrd N:0:0:0:0:0' 2>&1
0
CMD: /bin/bash -c 'rrdtool graph /home/osmc/CableLoadMonitor.png_ -a PNG -l 0 -u 200000000
--title="Graph generated at date"
-w 1500 -h 800
--end now --start end-3600s

--color "ARROW#ffffff"
--color "BACK#000000"
--color "CANVAS#000000"
--color "GRID#ffffff"
--color "MGRID#ffffff"
--color "FONT#ffffff"
--color "AXIS#ffffff"
--color "FRAME#ffffff"
--border 1



DEF:f00=/home/osmc/CableLoadMonitor.rrd:f00:AVERAGE
DEF:f01=/home/osmc/CableLoadMonitor.rrd:f01:AVERAGE
DEF:f02=/home/osmc/CableLoadMonitor.rrd:f02:AVERAGE
DEF:f03=/home/osmc/CableLoadMonitor.rrd:f03:AVERAGE
DEF:sum=/home/osmc/CableLoadMonitor.rrd:sum:AVERAGE


"LINE:f00#ff0000:770"
"LINE:f01#ff0000:546"
"LINE:f02#0000ff:554"
"LINE:f03#0000ff:562"

"LINE:sum#00ff00:sum\l"

"GPRINT:f00:MAX:%3.0lf %s"
"GPRINT:f01:MAX:%3.0lf %s"
"GPRINT:f02:MAX:%3.0lf %s"
"GPRINT:f03:MAX:%3.0lf %s"
"GPRINT:sum:MAX:%3.0lf %s"" max\l"
"GPRINT:f00:LAST:%3.0lf %s"
"GPRINT:f01:LAST:%3.0lf %s"
"GPRINT:f02:LAST:%3.0lf %s"
"GPRINT:f03:LAST:%3.0lf %s"
"GPRINT:sum:LAST:%3.0lf %s"" last\l"
' 2>&1
1581x901
CMD: /bin/bash -c 'mv /home/osmc/CableLoadMonitor.png_ /home/osmc/CableLoadMonitor.png' 2>&1
12:22:03: CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 10 dvbtune -f 770000000 -s 6952 -qam 256' 2>&1
scanning output for: <Bit error rate: ([0-9]+)$>
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Using DVB card "Silicon Labs Si2168"
tuning DVB-C to 770000000, srate=6952000
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Event: Frequency: 780600000
SymbolRate: 6952000
FEC_inner: 9

Bit error rate: 0
first match: <0>
Signal strength: 0
SNR: 0
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
CMD: /bin/bash -c 'LD_PRELOAD=/opt/lib/libmediaclient.so timeout 1 dvbsnoop -s bandwidth 8190 -n 80000' 2>&1
scanning output for: <^## PID:.*Avrg: +([^ ]+) >
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/opt/lib/libmediaclient.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
dvbsnoop V1.4.50 -- http://dvbsnoop.sourceforge.net/

PID bandwidth statistics...
PID: 8190 (0x1ffe) - max packet count: 80000

PID: 8190 (0x1ffe) bad/total packets: 0/0 (= nan%) Avrg: 0.000 kbit/s

first match: <0.000>
... aborted (Signal: 15)
0CMD: /bin/bash -c 'rrdtool update /home/osmc/CableLoadMonitor.rrd N:0:0:0:0:0' 2>&1

Hi,
is it possible to use also DOCSIS 3.1 frequency with eg -qam 1024 ?

At the moment all freq with higher qam as 256 errors out..

{ LD_PRELOAD=/opt/lib/libmediaclient.so timeout 10 dvbtune -c 0 -f 202000000 -s 6952 -qam 1024; LD_PRELOAD=/opt/lib/libmediaclient.so timeout 1 dvbsnoop -adapter 0 -s bandwidth 8190 -n 80000; } 2>&1
## PID: 8190 (0x1ffe)   bad/total packets: 0/12632 (= 0.0%)   Avrg: 19093.998 kbit/s   
dvbtune/dvbsnoop fails for [ 202 ] [ 7 != 3 ], retrying...

root@raspberrypi:/home/pi/cableload# dvbtune -c 0 -f 202000000 -s 6952 -qam 1024
Invalid QAM rate: 1024

Hi,

thanks for developing this tool. It works fine with the latest Raspberry OS and Raspberry Pi 4.

I want to pinpoint upstream issues (sometimes goes as low as 1 Mbits, normally 50 Mbits). What modifications are needed for this? Is this even possible?

Thanks again.

Cheers