[mythtvnz] Getting DVB-T working under Linux

Nick Rout nick.rout at gmail.com
Fri Jan 16 08:11:26 GMT 2009


On Fri, Jan 16, 2009 at 9:10 PM, Nick Rout <nick.rout at gmail.com> wrote:
> On Fri, Jan 16, 2009 at 6:33 PM, Simon Cantem <scantem at gmail.com> wrote:
>> Hi everyone,
>>
>> I recently bought an Asus u3100 USB DVB-T tuner stick and I've been having a
>> bit of trouble getting it running under Linux. I believe I have a fully
>> functioning channels.conf file for Christchurch (I used w_scan to build it),
>> and have come up against the following:
>>
>> * I'm running ubuntu 8.10, everything's up to date
>> * The kernel finds it OK, it shows up in dmesg and an adapter is created in
>> /dev/dvb
>> * It works under xine - sort of. I can get TV3 to work with both video and
>> audio, but with the rest of the channels I only get video (I noticed TV3
>> uses a different audio codec).
>> * I can't get it to work under mplayer (my player of choice), it seems to
>> find it OK but I don't get any video or audio for any channels, and the
>> window which usually pops up in X to display the video doesn't even appear.
>> I get the following in the console:
>>
>> Playing dvb://TV3.
>> dvb_tune Freq: 698000000
>> TS file format detected.
>> VIDEO MPEG2(pid=450) AUDIO MPA(pid=400) NO SUBS (yet)!  PROGRAM N. 0
>>
>> * If I do a dumpstream in mplayer or cat /dev/dvb/adapter0/dvr0 to a ts file
>> I can't play it in mplayer, I get "codec 0x50 not found" or if I turn off
>> the audio "video stream not found"
>> * I've tried both mplayer 1.0rc2 in the main ubuntu repo and the latest
>> version out of subversion, both without success
>> * If I use Kaffeine it only finds TV3, but it plays that with both video and
>> sound
>>
>> Does anyone have any ideas on what I can try next, reading through the
>> mailing list here and on the mplayer mailing list I can't find anyone who's
>> come up against this before (which makes me think I'm missing something
>> really simple or it's a very difficult problem!)
>
> you can try:
>
> 1. making sure you have your player as a very recent version with
> support for both ethe video and audio codecs used
>
> 2. make sure your cpu is powerful enough to handle decoding the video
> codec used (hint 3G or higher core2duo or similar is likely needed)
>
> 3. join mythtv-nz mailing list where there is a lot of knowledge, for
> mplayer as well as mythtv.
>

ooops forget point 3, for some reason i thought I was in the nzlinux list :)



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