[mpeg2] Re: One line disturbance in picture

[Bram Stolk <bram@sara.nl>]

Klaus,

I would say you have a good chance on a working setup
if you would try my versions of module+microcode.

Just install a 2.4.18 kernel and get my binary module.

You can keep multiple kernels on your box, so you do not
have to remove your current kernel.

The stuff I have at
http://www.stolk.info/kfir/
is known to work.

   Bram


On Thu, 22 Aug 2002 18:45:01 +0200
Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de> wrote:

> Bram Stolk wrote:
> > 
> > On Wed, 21 Aug 2002 18:35:16 +0200
> > Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de> wrote:
> > 
> > >
> > > If anybody has an idea what else I could test or change to get this thing
> > > to work, I'd appreciate that very much.
> > 
> > Try a different motherboard, no other PCI cards, with a VGA card
> > only.
> 
> Unfortunately with the only two other PCs I have here loading kfir.o
> leads to a total system lockup :-(
> 
> So I tried my VDR machine with no other PCI cards (except the
> network adapter, since I don't have a monitor where my VDR machine is
> located) and USB disabled in the BIOS. However, nothing changed...
> 
> I can hardly believe that the problem is anywhere in the PCI or USB
> domain, since one faulty video scan line can only be produced _on_ the
> MPEG encoder card, _before_ the actual MPEG encoding - otherwise it
> would have to result in the well known artefacts. Am I right with
> that assumption?
> 
> Now since I have two MPEG encoder cards here, and it's exactly the
> same with both of them, the only remaining thing they have in common
> is the driver and the microcode.
> 
> I'm getting pretty desperate here, so I'm beginning to poke around in the
> driver code to see if there's anything that would somehow appear odd.
> One thing I came across is
> 
>         if (!kfir->DVB_MODE) {
>                 switch (kfir->Params.StreamType) {
>                 default:
>                 case VT_KFIR_VIDEO_ES:
>                 case VT_KFIR_PROGRAM:
>                         kfir->micro=vtv;
>                         break;
>                 case VT_KFIR_TRANSPORT:
>                         kfir->micro=vtv2;
>                         break;
>                 case VT_KFIR_SYSTEM:
>                         kfir->micro=vtv1;
>                         break;
>                 }
>         }
> 
>         if (kfir->DVB_MODE == 1) {
>                 switch (kfir->Params.StreamType) {
>                 case VT_KFIR_VIDEO_ES:
>                 case VT_KFIR_PROGRAM:
>                         kfir->micro=vtv8;
>                         break;
>                 default:
>                 case VT_KFIR_TRANSPORT:
>                         kfir->micro=vtv28;
>                         break;
>                 case VT_KFIR_SYSTEM:
>                         kfir->micro=vtv18;
>                         break;
>                 }
>         }
> 
> Does anybody know what kfir->DVB_MODE means? Apparently there are six
> different versions of microcode, but without knowing what the difference
> is I don't dare to try setting kfir->DVB_MODE to 1 (it is 0 by default
> and there's no place in the driver code where it would be set to a different
> value). Since the "black line problem" occurs in both PS and TS mode, I guess
> there's no difference in that area between 'vtv' and 'vtv2'.
> 
> Any additional thoughts would, as always, be greatly appreciated.
> 
> Klaus
> -- 
> _______________________________________________________________
> 
> Klaus Schmidinger                       Phone: +49-8635-6989-10
> CadSoft Computer GmbH                   Fax:   +49-8635-6989-40
> Hofmark 2                               Email:   kls@cadsoft.de
> D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de
> _______________________________________________________________
> 
> 
> 


-- 
------------------------------------------------------------------------------
 Bram Stolk, VR Specialist.
 SARA Academic Computing Services Amsterdam, PO Box 94613, 1090 GP  AMSTERDAM
 email: bram@sara.nl   Phone +31-20-5923059  Fax +31-20-6683167

 "I heard if you play the NT-4.0-CD backwards, you get a satanic message."
 "Thats nothing, if you play it forward, it installs NT-4.0"
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