current program/show information tuned in with [c]zap

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Hello,

I’m tuning to a DVB-C channel with czap (czap -r "channelname”) and then I’m creating screenshots from this channel with mplayer (mplayer /dev/dvb/adapter0/dvr0 -vo png -frames 1). This works.

I also need the current program/show title on this channel in text (or picture) for this screenshot.

I found a way with tv_grab_dvb (tv_grab_dvb -m) and parsing the xml. But that takes 10 seconds for the EPG (processes all channels) where I only need the title of the current program on the channel tuned in with czap.
Is there an easier/faster way possible?

I’m trying things with dvbsnoop  but I’m getting lost in the PID’s/multiplex  etc
(For example:
	scan  /usr/share/dvb/dvb-c/nl-UPC
gives among others:
	0x0817 0x47b9: pmt_pid 0x0780 UPC NL -- VRT 1 (running)
But
	dvbsnoop -s sec -ph 3 -n 10 -crc  0x0780
gives nothing
and
	dvbsnoop -s sec 0x0780 -b -n 200 > /tmp/VRT1.bin
	./tv_grab_dvb -i /tmp/x.bin -f /tmp/VRT1.xml
gives only the channel listing)

Maybe someone here can give me a clue?

Thanks. Wessel--
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