[linux-dvb] Problems seeing video with my DVB card

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Piers Kittel wrote:
> Sid,
> 
> Fantastic, thanks very much for your help!  Tzap/xine and kaffiene 
> worked fine - was glad to see kaffiene supported subtitles too which was 
> a nice surprise.  Strangely enough, mplayer now works with the command I 
> originally tried, though very jerky and badly pixellated.  *shrugs* 
> dunno why it didn't work before.
> 
> Thanks very much for your help - now to figure out why mythtv isn't 
> playing the DVB streams...
> 
> Cheers - Piers
> 
> Sid Boyce wrote:
> 
>> I went through a similar loop. For a quick test, something like this....
>> tzap -r -c /channels.conf-dvbt-SuttonColdfield "BBC ONE" &
>> xine stdin://mpeg2 < /dev/dvb/adapter0/dvr0
>>
>> For a better way, use kaffeine. Up till yesterday I used March 2005 
>> cvs version and yesterday upgraded to the latest cvs version which has 
>> a smarter layout. kaffeine also has a scan feature which will present 
>> you with a full list of stations so you can select which ones you need 
>> permanently.
>> The 2.6.12-rc4 kernel is complete, you won't need any patches -- AT 
>> LAST!.
>> Regards
>> Sid.
> 
> 
> 
Some apps don't work as they seem to be looking for /dev/video0 or 
/dev/dvb/adapter0/video0. Some weeks ago someone on the linuxtv 
(video4linux) mailing list posted that these cards don't have a video 
adapter, the card puts its video on the bus and it's displayed by the 
video card. I had tried mythtv, xawtv4, tvtime, dvr and mplayer, but 
they didn't work. If I remember correctly, no video0 seemed to be the 
problem, xawtv gave sound but complained of no video0, tvtime couldn't 
find the channels and dvr (latest cvs version) wouldn't start because 
there is no video0.
Things seem a bit disjointed, some apps from linux-dvb are relevant and 
needed, but the driver is video4linux and not linux-dvb. Many of the 
apps seem built to expect a video adapter built-in on the DVB card. I'm 
still looking to see how these apps can be coaxed to work as at startup, 
strace on vdr says they are checking as follows:-
open("/dev/video", O_RDWR|O_EXCL)       = -1 ENOENT (No such file or 
directory)
open("/dev/video0", O_RDWR|O_EXCL)      = -1 ENOENT (No such file or 
directory)
open("/dev/video1", O_RDWR|O_EXCL)      = -1 ENOENT (No such file or 
directory)
open("/dev/video2", O_RDWR|O_EXCL)      = -1 ENOENT (No such file or 
directory)
open("/dev/video3", O_RDWR|O_EXCL)      = -1 ENOENT (No such file or 
directory)
open("/dev/video4", O_RDWR|O_EXCL)      = -1 ENOENT (No such file or 
directory)
open("/dev/video5", O_RDWR|O_EXCL)      = -1 ENOENT (No such file or 
directory)
open("/dev/video6", O_RDWR|O_EXCL)      = -1 ENOENT (No such file or 
directory)
open("/dev/video/video0", O_RDWR|O_EXCL) = -1 ENOENT (No such file or 
directory)
open("/dev/video/video1", O_RDWR|O_EXCL) = -1 ENOENT (No such file or 
directory)
open("/dev/video/video2", O_RDWR|O_EXCL) = -1 ENOENT (No such file or 
directory)
open("/dev/video/video3", O_RDWR|O_EXCL) = -1 ENOENT (No such file or 
directory)
open("/dev/video/video4", O_RDWR|O_EXCL) = -1 ENOENT (No such file or 
directory)
open("/dev/video/video5", O_RDWR|O_EXCL) = -1 ENOENT (No such file or 
directory)
open("/dev/video/video6", O_RDWR|O_EXCL) = -1 ENOENT (No such file or 
directory)
open("/dev/v4l/video0", O_RDWR|O_EXCL)  = -1 ENOENT (No such file or 
directory)
open("/dev/v4l/video1", O_RDWR|O_EXCL)  = -1 ENOENT (No such file or 
directory)
open("/dev/v4l/video2", O_RDWR|O_EXCL)  = -1 ENOENT (No such file or 
directory)
open("/dev/v4l/video3", O_RDWR|O_EXCL)  = -1 ENOENT (No such file or 
directory)
open("/dev/v4l/video4", O_RDWR|O_EXCL)  = -1 ENOENT (No such file or 
directory)
open("/dev/v4l/video5", O_RDWR|O_EXCL)  = -1 ENOENT (No such file or 
directory)
open("/dev/v4l/video6", O_RDWR|O_EXCL)  = -1 ENOENT (No such file or 
directory)
Also checking the xawtv sources, looks like they all depend on a video 
device and we don't have one.
Regards
Sid.
-- 
Sid Boyce ... Hamradio License G3VBV, Keen licensed Private Pilot
Retired IBM Mainframes and Sun Servers Tech Support Specialist
Microsoft Windows Free Zone - Linux for all Computing Tasks



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