Graham wrote: >Nick wrote: > > > >>On 14/12/05, Graham <[EMAIL PROTECTED]> wrote: >> >> >> >> >>>Hi, >>> >>>I am hoping someone can help me. I have written an external channel >>>change script that does the following: >>> >>>1) If the freqid passed in is less that 100 it treats it as a >>>terrestrial channel and tries to change the channel on the device using >>>'v4lctl -c /dev/video0 setchannel $1' >>>2) Else sets channel to the channel my Sky+ RF is on and executes a >>>channel changer command for my Sky control box. >>> >>>Trouble is the setchannel doesn't work - I just get a burst of white >>>then snow! >>> >>>It works fine through MythTV if I remove the external channel change >>>command (through setup). If I try and use xawtv it moans about DGA - >>>though I did get it working with the '-remote' option but you still >>>couldn't change channels using setchannel. >>> >>>I don't know what command MythTV uses to change the channel (as it >>>works!) any ideas? - Thanks. >>> >>> >>> >>> >>If using an internal tuner (i.e. on an analogue TV card or DVB card), >>it is taken care of internally. If using an external tuner, it will >>use whatever channel change script you tell it to use (defined in >>capture card setup). >> >> >> >> >Yes I am aware of this (it is an internal analogue tuner), I just >wondered if there was any way to emulate the MythTV internal method. > > > >>The 'normal' way of setting this up is to define 2 separate video >>sources (e.g. Terrestrial, Sky) and then attach these to the tuner and >>direct inputs for your capture cards. You can then give preference to >>the terrestrial channels, and provide a channel change script just for >>the Sky source. This should negate the need to code more complicated >>if/else channel change scripts and keep things much simpler in terms >>of maintenance. >> >> >> >> >Thanks! I had considered this a while back as it should give a better >Sky picture too. The only problem with this method is that the Sky box >is in another room. Now, there is already an RF cable running round the >house but to achieve this I would need to run a composite lead round as >well and split this into the 2 TV cards. > >Apart from that this is a good solution. > >Graham > > Ahh, problems - no audio (of course) as I have two TV-cards and am pulling audio over the PCI bus. Hence, I don't have any way to get the audio in with the composite/s-video signal...
So, it looks like the only way I can achieve what I want is to tune the cards from the script and use only the RF inputs. However, with a *broken* setchannel command I don't know how! Any ideas? > > >>Nick >> >> >> >> >> >_______________________________________________ >mythtv-users mailing list >[email protected] >http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
