On Friday 25 August 2006 09:37, Hans Meine wrote:
> Hi!
>
> First of all, thanks for developing the IVTV driver, I've been using
> it successfully for quite some time now (~two years maybe, mainly
> with Freevo).
>
> Lately, I noticed problems with some TV recordings here in Germany
> (3SAT for example): The broadcast is supposed to have a special audio
> channel for blind people, and I am recording in stereo (default
> 0x00e9 mode IIRC), but the channels are not separated at all. I.e. I
> have a 2-channel, stereo, 48kHz recording, but I all mplayer
> parameters which are supposed to select just the left or right
> channel do not remove the voice describing the screenplay. Which
> is...kind of awkward. ;-)
>
> A possibly important fact is that I let Freevo start the recording
> several minutes before the start of the program, when I suppose that
> the broadcasting changes in some way. <wild_guess>So maybe the IVTV
> driver would have to change some stream/recording parameters and does
> not?</wild_guess> I really wonder why that would be necessary though,
> I thought there were just two channels, and these would end up as
> left/right in the stereo recording?
>
> BTW: The same has happend with the more common two-language
> broadcasted programs in the past.
>
> options msp3400 once=1 # simple=1
That's the culprit: remove this once=1 option, it prevents the msp3400
from properly detecting bilingual channels. The ivtv driver (if you
have a recent version) should detect bilingual transmissions and set
that information in the MPEG stream.
Hans
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