[mythtv-users] possible error in msp3400.c

Jarod C. Wilson jcw at wilsonet.com
Thu Oct 2 13:01:35 EDT 2003


On Thursday, Oct 2, 2003, at 08:44 US/Pacific, Dirk Aust wrote:

> I think I found a bug in msp3400.c, I found this during the 
> examination why
> audio disappears when using an ivtv device with mythtv.
>
> After the initialisation of of the driver, the source matrix is set to 
> 0x300,
> when using "cat" for streaming it works.
>
> But when calling the V4L2_CID_AUDIO_VOLUME ioctl just before recording 
> even
> for LiveTV, this value is set to 0 when only mono without any NICAM 
> stuff is
> used:
>
> line 2010:	case VIDEO_SOUND_LANG1:
> 				src = 0x0000 | nicam;
> 				break;
>
> I guess this is the cause for the disappearing of the audio in MythTV.
>
> At the moment I don't have a patch for this, because I first have to 
> read the
> datasheet and the code more carfully.

I'd advise taking this to the ivtv mailing list if you haven't done so 
already.

--Jarod

-- 
Jarod C. Wilson, RHCE

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