On 23-02-15 12:21, Honza Petrouš wrote:
2015-02-23 11:31 GMT+01:00 Rudy Zijlstra <rudy@xxxxxxxxxxxxxxxxxxxxxxxxx>:
On 23-02-15 08:44, Honza Petrouš wrote:
Hi Rudy.
2015-02-22 16:28 GMT+01:00 Rudy Zijlstra <rudy@xxxxxxxxxxxxxxxxxxxxxxxxx>:
Some more info
On 21-02-15 22:30, Rudy Zijlstra wrote:
Dears (Hans?)
My setup, where the cable operator was using only irdeto, was working
good. Then the cable operator merged with another, and now the networks are
being merged. As a result, the encryption has moved from irdeto only to
simulcyrpt with Irdeto and Nagra.
Current status:
- when i put the CA card in a STB, it works
- when trying to record an encrypted channel from PC, it no longer works.
Recording system has 3 tuners. All equal, all with same permissions on the
smartcard. On cards 0 and 2 does not work, but card 1 does work, on all
channels tested.
Does it mean that descrambling is not working for you? If so,
how do you manage descrambling? By CI-CAM module
or by some "softcam" like oscam?
Or do you record ENCRYPTED stream and decrypt the recordings
later on?
Each tuner has its own legal CI-CAM module. And yes, except for the second
tuner descrambling no longer works
I'm not much familiar with MythTV, so I'm guessing from the mux setup changes,
but did you check to descramble the same channel on different tuners?
To eliminate
the particular change inside one service only.
Of course there can be also software issue in CI-CAM module itself
(fail in parsing
PMT CA descriptors etc).
TBH, I think it must be application layer issue, not kernel one.
See above:
Recording system has 3 tuners. All equal, all with same permissions on the
smartcard. On cards 0 and 2 does not work, but card 1 does work, on all
channels tested.
additional finfo: i tested the same channel(s) on all 3 tuners. For now i have re-configured mythtv to use only the second tuner for encrypted channels.
This does reduce scheduling flexibility though.
Would to understand what makes the difference, so i can ask the right questions to MythTV developers.
As the decryption does work with 1 tuner, i see 2 options:
- depending on tuner id the default CA descriptor used is different, and this selection is not expoerted on API level (kernel issue)
- application needs to select which CA to use (and currently does not do this)
Cheers
Rudy
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
