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59 lines
1.4 KiB
Bash
Executable File
59 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# Reads the signal strength from a DVB-c/s/t tuner
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#
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# (c) 2009 i.dobson@planet-ian.com
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#
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# Magic markers (optional):
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#%# family=auto
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#%# capabilities=autoconf suggest
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#Change this value to point to the tuner you want to watch
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Tuner=1
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case $1 in
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autoconf|detect)
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if [ -e /dev/dvb/adapter$Tuner/ ] ; then
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echo yes
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exit 0
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else
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echo "no (dvb tuner $Tuner not found)"
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exit 1
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fi;;
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config)
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echo 'graph_title DVB signal strength '
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echo 'graph_args --base 1000 -l 0'
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echo 'graph_vlabel Signal Strength % / Errors in 000s'
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echo 'graph_category mythtv'
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echo 'graph_scale no'
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echo "signal.label Signal strength"
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echo "signal.draw LINE1"
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echo "signal.min 0"
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echo "snr.label Signal to noise"
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echo "snr.draw LINE1"
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echo "snr.min 0"
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echo "ber.label Bit error rate (in millions)"
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echo "ber.draw LINE1"
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echo "ber.min 0"
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echo "unc.label Uncorrectable errors (in thousands)"
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echo "unc.draw LINE1"
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echo "unc.min 0"
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exit 0;;
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esac
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if [ -e /dev/dvb/adapter$Tuner/ ] ; then
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check=`femon -H -c 1 -a $Tuner | grep signal `
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echo $check | awk '{printf "signal.value %.0f\nsnr.value %.0f\nber.value %.2f\nunc.value %.2f\n\n",$5,$8,$11/1000,$14/1000000}'
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else
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echo "snr.value 0"
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echo "unc.value 0"
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echo "ber.value 0"
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echo "signal.value 0"
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fi
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exit 0
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