[linux-dvb] Wide Screen Signalling (WSS)

Manu Abraham abraham.manu at gmail.com
Sun Jan 8 08:25:34 CET 2006


Mark Buechler wrote:

> Can/has this be/been added to the DST frontend? It would be great to 
> get MythTV to support this.
>
> - Mark.
>
> On 1/5/06, *Oliver Endriss* < o.endriss at gmx.de 
> <mailto:o.endriss at gmx.de>> wrote:
>
>     Hans Verkuil wrote:
>     > On Wednesday 04 January 2006 07:57, Oliver Endriss wrote:
>     > > Oliver Endriss wrote:
>     > > > I need an interface to pass WSS data from userspace to the
>     av7110
>     > > > driver[1]. In videodev2.h there are some definitions but the
>     > > > comment
>     > > ...
>     > > Ok, here we go. Patch for the saa7146/av7110 driver:
>     > > http://www.escape-edv.de/endriss/dvb/v4l-dvb-wss-v2.diff
>     > > I hope that I implemented the API correctly. ;-)
>     > >
>     > > This is a small tool which I wrote for testing:
>     > > http://www.escape-edv.de/endriss/dvb/wsstest.c
>     <http://www.escape-edv.de/endriss/dvb/wsstest.c>
>     >
>     > Speaking only of the sliced VBI changes: that looks good to me.
>
>     Thank you for your feedback.
>
>     If nobody objects I will commit it to CVS.
>
>     Oliver
>

The hardware is a budget type of hardware, where MPEG decoding is done 
in software. Therefore id your decoder supports it, you have the 
feature. For the AV7110 based cards, the TI DSP onboard does MPEG 
decoding and hence the need.


Manu




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