[vdr] Re: Multiple languaghes

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

Rolf Groppe wrote:
> Hi Klaus,
>
> Klaus Schmidinger wrote
>
> > I'm in the process of implementing audio track handling in VDR
> > and was experimenting with
>
> >   ioctl(fd_audio, AUDIO_CHANNEL_SELECT, AudioChannel)
>
> > (AudioChannel = 0, 1 or 2)
>
> > but apparently this doesn't work - at least not on my Siemens DVB-S
> > Rev. 1.3 card.
>
> > Which DVB card are you using?
> > Does it work for you in live _and_ replay mode?
>
> Some weeks ago (middle of November) I have announced here a patch for this 
> against vdr 1.3.15. Unhappily this was the time, when there was some trouble
> with the mailing list server. Therefor you can't find that announcement in 
> the archive.
> I also used the function AUDIO_CHANNEL_SELECT and it works fine for me on 2 
> PC (one with a DVB-S Rev. 1.3 card, the other with 2 DVB-S rev. 1.5 cards). 
> It works in live _and_ replay mode, but I am only able to hear a difference 
> if the selected audio stream contains two different audio channels. This is 
> (here in central europe) mainly on the swiss channels and with some arabian 
> channels on hotbird.
> You can download my patch file from
>    http://www.groppe.de/files/vdraudiopatch.diff
>
> Regards
>
> Rolf
Well, the core functionality is the same as I am using, namely

  ioctl(fd_audio, AUDIO_CHANNEL_SELECT, AUDIO_STEREO)

so I wonder why it works for you and doesn't for me.

I did try it only with normal stereo broadcasts, since I don't
know where to find a channel that provides two different audio
channels in the two stereo channels. However, I would assume that
with a headphone one should be able to tell the difference between
stereo and mono...

Which driver/firmware are you using?
Can you try it with the current CVS version of the DVB driver (not
dvb-kernel)?

Klaus