[linux-dvb] Re: Hard time reading MPEG2s + Sat lock with Hauppage WinTV Nexus DVB-s

[Oliver Endriss <o.endriss@gmx.de>]

Alexandre CONRAD wrote:
> >I've seen similar problems with vdr 1.1.x.
> >Some recordings done with vdr 1.0.4 won't replay cleanly. I started
> >looking into this and found that the problem disappeared when I
> >replaced the firmware (Root, Dpram) of the new driver with that of
> > the 1.0.4 driver. (Please note that this is not recommended. I did
> > it just for debugging.)
> >
> >Is the new firmware more sensitive to the quality of the data
> > stream?
>
> Humm... I haven't made my MPEG2s from VDR. I'm using a Matrox
> Digisuite MAXX, realtime encoding MPEG2. This is very expensive
> professional hardware, and I don't think I get any errors encoding
> MPEG. How can I check that ?

I'm not sure whether this is really related to encoding errors. 
Maybe the new firmware places some restrictions on the data stream.
Could a firmware developer please comment on this?

> How can I do that firmware raplacment ?

Replace the firmware files (Root, Dpram) in the 'driver/av7110' 
directory with the files from the old driver. (See below.)
Delete av7110_firm.h and re-compile the driver.

> Why don't you recommend it ?

The new driver uses features which the old firmware doesn't provide.
You might encounter unpredictable results.

> Where can I get this firmware ?

For example, take the CVS snapshot from
http://www.linuxdvb.tv/download/dvb-20020520.tar.bz2
You'll find the firmware files (Root, Dpram) in the 'driver' 
subdirectory.

Oliver


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