Convert w_scan channels.conf list to a DVBv5 dtv-scan-tables for tvheadend

channels_to_scan_table.md

If you happen to have created a channels.conf after a lengthy scanning process using w_scan:

w_scan -f c -c PL -X -S 1 -v

(in this case a Polish DVB-C scan with SR 6875)

then you can use the following line to create your own scan table (you have to run it as root to write to /usr/share):

cut -d: -f2,3,4,5,6 channels.conf | sort -u | awk -F["/:"] '{ printf "[CHANNEL]\n\tDELIVERY_SYSTEM = DVBC/ANNEX_A\n\tFREQUENCY = %s\n\tSYMBOL_RATE =  %s\n\tINNER_FEC = %s\n\tMODULATION = %s\n\tINVERSION = %s\n\n", $1, $3, $4, $5, $2 }' > /usr/share/dvb/dvb-c/pl-Toya

hi Mateusz,

just wanted to say a thank you. DIGI in Hungary just reorganized all their DVB-C muxes and with your oneliner, I could simply feed them into tvheadend. <3

Great! Happy I could help 👍

For tvheadend with ATSC-T digital TV (US/Canada) you can do the following (for w_scan2 however which I think is the recommended version anyway)

w_scan2 -fa -c US -x > initial_tuning_data_ATSC.txt
dvb-format-convert -I CHANNEL -O DVBV5 initial_tuning_data_ATSC.txt us-ATSC_localchannels

Since I run the tvheadend linuxserver.io docker image (in podman) I need to add an ExecStartPost line like so ExecStartPost=/usr/bin/podman cp /home/user/scantables/us-ATSC_localchannels tvheadend:/usr/share/tvheadend/data/dvb-scan/atsc/us-ATSC_localchannels to my systemd service so it copies the us-ATSC_localchannels scantable into the container during startup before it is done starting. This allows it to be recognized when tvheadend starts otherwise it doesn't detect it