RE: [DVB] Digital Devices Cine CT V6 support

[Sébastien RAILLARD (COEXSI) <sr@xxxxxxxxx>]

> -----Original Message-----
> From: Ralph Metzler [mailto:rjkm@xxxxxxxxxxxxxx]
> Sent: lundi 24 octobre 2011 20:31
> To: S é bastien RAILLARD (COEXSI)
> Cc: 'Linux Media Mailing List'
> Subject: RE: [DVB] Digital Devices Cine CT V6 support
> 
> Sébastien RAILLARD (COEXSI) writes:
>  > I've seen a new parameter "ts_loop", can you explain how it's
> working?
>  > Is-it for sending the stream from the demodulator directly to the CAM
> > reader?
> 
> No, it is mainly for testing. It declares one TAB as loopback, which
> means that the data output is directly connected to the input.
> 

Ok

> For redirecting a stream through a CI see the "redirect" attribute.
> I don't know if my small redirect readme was included in the package I
> sent to Oliver. So, I attached it below.
> 
> 
> -Ralph
> 
> 
> 
> Redirection of TS streams through CI modules is now supported through
> /sys/class/ddbridge/ddbridge0/redirect.
> It only works with cards based on the ddbridge PCIe bridge, not with
> nGene based cards.
> 
> It is set up in such a way that you can write "AB CD" to a "redirect"
> attribute and data from input B of card A is then piped through port D
> (meaning TAB (D+1) which uses output D and input 2*D for CI io) of card
> C and then shows up in the demux device belonging to input B (input
> (B&1) of TAB (B/2+1)) of card A.
> 

Great feature, thanks!

> E.g.:
> 
> echo "00 01" > /sys/class/ddbridge/ddbridge0/redirect
> 
> will pipe input 0 of card 0 through CI at port 1 (TAB 2) of card 0.
> 
> Redirection should only be done right after loading the driver (or
> booting if the driver is built-in) and before using the devices in any
> way.


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