[linux-dvb] CAM with Budget, Why no decryption?

Christophe Massiot cmassiot at freebox.fr
Wed Mar 30 10:01:59 CEST 2005

On Wed, Mar 30, 2005, irk wrote:

> As far as I understand, for encrypted streams I just need to initialise the 
> CAM on
> the card with the CVS driver. Streams are then flowing through the CAM, TS 
> packets
> get decrypted and appear as unencrypted TS which I can retrieve from the 
> card in
> the same way as for unencrypted packets.  For the streaming software there 
> is thus
> no difference. However, currently TS packets are not decrytped so they are 
> streamed
> in encrypted format to the client.

No, your server software must send a CAPMT to the CAM so that it starts
descrambling. See EN 50 221, libdvbci or VLC for more details.

Christophe Massiot.

More information about the linux-dvb mailing list