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Old 04-28-2008, 06:30 PM   #1
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record dvb streams (with subtitles !!) from the command line


I have a server (debian) with a dvb-interface (nova-t-usb2) and I need a way to record dvb streams remotely. (I live in Denmark/europe)

Something like:
1. ssh to the server
2. execute commands to record
3. transfer the file to where ever i want to view the file.

I've (severe) problems at step 2.

Whatever I try I cant get a recording with subtitles. (I've tried several solutions that recorded video+audio just fine, but NO subtitles)

If I launch Kaffeine directly on my server (with a keyboard and screen attatched and using the GUI) to record some dvb stream it works fine. well it works perfectly, the recorded *.m2t file is just what I need - but how can I do the same thing when I am physically away from my server. (I only have ssh/telnet access - no keyboard, no GUI, no mouse)

Or in other words:
How does Kaffeine do the job ? which subrutines does Kaffeine use.
- dvbstream ?
- cat /dev/dvb/adapter0/dvr0 > ...
- replex ...
- projectx

Alternative: Is there a way to remotely control Kaffeine ?
Old 04-30-2008, 03:53 AM   #2
David the H.
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Location: Osaka, Japan
Distribution: Debian sid + kde 3.5 & 4.4
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If you can play the stream with mplayer, then you should also be able to use the '-dumpstream' option to save it to disk. Hopefully that will include the full stream including subtitles.

(You can also include the '-dumpfile <filename>' option to give it a useful file name).
Old 05-01-2008, 02:09 PM   #3
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Solution found!

First David, thanx for your answer. I never did get mplayer to display subtitles from a dvb-t source and I'm not sure that mplayer even support dvb-t subtitles (yet ?)

Anyway I found another solution. Briefly I do this: (I'll post a more detailed HowTo later)

1. scan for available channels:
(scan /usr/share/doc/dvb-utils/examples/scan/dvb-t/dk-All > /root/.tzap/channels.conf)

2. Start tzap and leave it running:
(tzap -c "/root/.tzap/channels.conf" "TV 2 (ěst)")

3. In anoter console run dvbsnoop and find the PIDs for map, video, audio and subtitles for that channel. (in this case its 2101 2111 2123 2135)

4. Now record those streams with dvbstream to a ts-file
(dvbstream -o:"/dvb/myRecordedProgram.ts" 0 2101 2111 2123 2135)

the file is playable with vlc with subtitles (haven't tried other players yet)

I'm very happy now

Old 06-26-2008, 08:04 AM   #4
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dvbsnoop dvb-t subtitles

Would Henning be so kind to advise the command line he uses with dvbsnoop to find the PIDs for map,video,audio & subtitles?
Old 06-27-2008, 03:35 AM   #5
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Hi Elassed

Well, dvbsnoop is the command to use.
I'm rewiring my network right now so my linux-box is currently offline, but as I recall it:

#dvbsnoop -s pidscan -pd 6 > snoop.out

Look through the file snoop.out for the right pids for audio, video and subtitles.

Hope it helps.

Old 03-08-2009, 10:23 AM   #6
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Registered: Dec 2008
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I got this error using tzap:
ERROR: error while parsing constellation (syntax error)


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