Date: Wed, 26 Mar 1997 17:44:53 -0700 From: Steve Passe <smp@csn.net> To: Doug White <dwhite@resnet.uoregon.edu> Cc: Amancio Hasty <hasty@rah.star-gate.com>, multimedia@freebsd.org Subject: Re: bt848 driver for this week Message-ID: <199703270044.RAA16977@Ilsa.StevesCafe.com> In-Reply-To: Your message of "Wed, 26 Mar 1997 15:59:20 PST." <Pine.BSI.3.95.970326154700.22414B-100000@resnet.uoregon.edu>
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Hi,
> Is there any way of interrogating the cards and finding out if the channel
> is broadcasting stereo? It doesn't sound like it is doing stereo decode,
> although this is the WinCast/dbx. I can't tell with headphones on
> standard TV on channels our Sony TV says are on stereo. I suppose I need
> to find a movie or something that does a lot of left/right type panning.
all I've done to the stereo chips so far is unmute it. the placeholder
function for adding stereo support is:
/*
* setup the dbx chip
* XXX FIXME: alot of work to be done here, this merely unmutes it.
*/
static int
set_BTSC( bktr_ptr_t bktr, int control )
{
return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) );
}
to get info on programming the TDA9850 I2C-bus controlled BTSC Stereo/SAP
Decoder look at:
http://www.semiconductors.philips.com/acrobat/2144.pdf
go for it!
--
Steve Passe | powered by
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