Hi all,
I'm thinking about getting a payTV subscription using DVB-C and my provider uses Conax Cas7 CAM with paired cards, so using the official CAM in a CI slot is the only option. I never used CAMs, so I have few (maybe stupid) questions, but I didn't find an answer on the web.
Are CI somehow paired with a specific card or tuner? Let's say I have DVB-S with CI (Hauppauge WinTV-NOVA-CI PCI) and DVB-C card without CI (TerraTec Cinergy T PCIe dual). Would it work so that the encrypted stream from DVB-C is decrypted by Conax CAM in CI that is attached to DVB-S card?
How many channels can be typically decrypted at the same time? Is it limited by the maximum number of pids or by the bandwidth that the CAM is able to decrypt?
My goal is to be able to watch one channel and record at least other 2 channels. So I'd like to buy TBS6680 dual tuner with dual CI (but I would use just one CAM and the second CI slot would stay unused). I would use this card together with the TerraTec Cinergy T. So there would be 3 DVB-C tuners and one CAM. Would this combination work as I wish?
Regards, Michal
On 05/07/2014 01:37 PM, Michal Novotny wrote:
Pairing is between the CAM and the smartcard, it's not paired to the tuner or TV so you can place your CAM to any device and it still decrypts. I've never tried to use DVB-S card for decrypting DVB-C stream but I don't see why it wouldn't work.
VDR asks from the CAM how many streams it can decrypt so it depends on the CAM.
It should. I have two TDA10023 single tuner DVB-C PCI cards and one TBS6285 quad tuner DVB-C PCIe card with CI attached to one of the TDA10023 cards. Decryption works on any card but only one channel at the time with my Conax CAM.
Please note that at least TBS6285 is still early development and it's not that reliable or error free. I have constant bit errors on one of the four tuners and occasional freezes that require kernel module reloading.
I have two usb cards, one with ci. I have a cam that can decrypt multiple streams, but if I am recording a encrypted channel and I tune to another encrypted channel, I get channel not available. It is possible to tune two encrypted channels with that setup?
Jose Alberto
Enviado desde mi dispositivo android.
-----Original Message----- From: Kende kende@kende.fi To: VDR Mailing List vdr@linuxtv.org Sent: mié, 07 may 2014 14:00 Subject: Re: [vdr] CAM questions
On 05/07/2014 01:37 PM, Michal Novotny wrote:
Pairing is between the CAM and the smartcard, it's not paired to the tuner or TV so you can place your CAM to any device and it still decrypts. I've never tried to use DVB-S card for decrypting DVB-C stream but I don't see why it wouldn't work.
VDR asks from the CAM how many streams it can decrypt so it depends on the CAM.
It should. I have two TDA10023 single tuner DVB-C PCI cards and one TBS6285 quad tuner DVB-C PCIe card with CI attached to one of the TDA10023 cards. Decryption works on any card but only one channel at the time with my Conax CAM.
Please note that at least TBS6285 is still early development and it's not that reliable or error free. I have constant bit errors on one of the four tuners and occasional freezes that require kernel module reloading.
On 21.05.2014 16:56, Jose Alberto Reguero wrote:
I have two usb cards, one with ci. I have a cam that can decrypt multiple streams, but if I am recording a encrypted channel and I tune to another encrypted channel, I get channel not available. It is possible to tune two encrypted channels with that setup?
This should work, as long as the two encrypted channels are on the same transponder.
Klaus
Why must they be on the same transponder? That was my original question in this thread and the answer was different.
So even if I have CAM that can decrypt multiple channels, it cannot decrypt multiple channels from different tuners?
Michal
On 05/22/2014 02:15 PM, Klaus Schmidinger wrote:
Michal Novotny writes:
No, with most hardware this is not possible. The transport stream input of the CAM-Interface is usually directly connected to the output of the tuner/demodulator of the card it is mounted on or connected to. So, only services in this one transport stream can be decrypted.
Only on few card models this is not the case and an arbitrary transport stream can be sent from the PC memory to a CAM-Interface, through the CAM-Module, and back to the PC memory. In this case, you can take partial transport streams from several tuners, mux them together, send them through the CAM, decrypt them, etc. But even for those cards VDR does not (yet fully) support this.
Ralph
Ralph, thanks for explanation. This is compeletely different answer from what I got 2 weeks ago. So back to my example from the first post. CI is paired with (bound to, connected to or name it as you like) a specific tuner and I cannot use Conax CAM in CI connected to WinTV-Nova-CI-S card to decrypt transport stream provided by Terratec Cinergy T (DVB-C tuner) which doesn't have CI interface.
Michal
On 05/22/2014 03:12 PM, Ralph Metzler wrote:
Hi,
I think you should be able to decrypt with that configuration. I have my card+CAM connected to CI on my Technotrend FF DVB-C card and that decrypts channels received by other DVB-C cards. Only limitation is that I can decrypt channels received by one tuner at a time. I have not tested for more than 2 channels at a time.
Sami
On May 22, 2014, at 4:47 PM, Michal Novotny wrote:
Sami Ketola writes:
I think you should be able to decrypt with that configuration. I have my card+CAM connected to CI on my Technotrend FF DVB-C card and that decrypts channels received by other DVB-C cards. Only li
The old Technotrend FF DVB-C card?
Like http://linuxtv.org/wiki/index.php/FF_Rev._2.1_DVB-C_Cards ?
I doubt that.
Ralph
Sami Ketola writes:
Because I don't see how this would be possible with this hardware.
I hacked around in the firmware of the AV7110 quite a lot back when I wrote the driver and there was no way to send other data besides from the on-board demod to the card. I also do not see any signs of support for anything like this in the current driver version (just in case somebody found some possibility to do this after I stopped working on the driver).
And, finally, there is no support for this in VDR besides some experimental patches for the ddbridge based cards.
Ralph
I wonder if this plugin would work for you ? https://github.com/flensrocker/vdr-plugin-ddci/blob/master/README
Hi,
Am 23.05.2014 01:54, schrieb jacek burghardt:
I wonder if this plugin would work for you ? https://github.com/flensrocker/vdr-plugin-ddci/blob/master/README
This plugin is superseded by ddci2 from here:
https://github.com/jasmin-j/vdr-plugin-ddci2
With this plugin, vdr 2.1.6 and a CI from Digital Devices/Linux4Media it's possible to decode the TS from any card.
http://www.l4m-shop.de/index.php?language=en&cat=c7_Common-Interface-Mod...
MTD is not included yet, but is worked on.
Lars.
On May 22, 2014, at 11:38 PM, Ralph Metzler wrote:
I see. To verify I digged out my hardware from the closet to see what the h/w actually was:
<URL: https://www.dropbox.com/s/9pjca0l34jrpmpf/20140523_001.jpg%3E
I need to fire up that box now to see if I remember it incorrectly.
Sami
On Fri, May 23, 2014 at 10:20 AM, Sami Ketola sami.ketola@iki.fi wrote:
Don't worry about it :) Used to have the same hardware (in combination with assortment of Satelco and TechnoTrend budget cards). Definately not possible.
On May 7, 2014, at 1:37 PM, Michal Novotny wrote:
Hi all,
I'm thinking about getting a payTV subscription using DVB-C and my provider uses Conax Cas7 CAM with paired cards, so using the official CAM in a CI slot is the only option. I never used CAMs, so I have few (maybe stupid) questions, but I didn't find an answer on the web.
Pairing is done between smartcard and CAM. Even after pairing you can move card+CAM combo from system to another. CI+ CAM does work on CI slot, but depending on your operators settings the CAM might require a CI+ slot to decrypt. Requirement for CI+ slot is something that can be selected on channel basis.
I have seen CI+ slots only available on Television sets and set top boxes. Not on VDR hardware.
On my provider all HD channels and some of the SD channels are "CI+" only while most of the crypted SD channels are allowed to be decrypted with CI+CAM combo.
Sami
-
Heikki Manninen -
jacek burghardt -
Jose Alberto Reguero -
Kende -
Klaus Schmidinger -
Lars Hanisch -
Michal Novotny -
Ralph Metzler -
Sami Ketola