[mythtv-commits] Ticket #8734: Enabling decryption check increases number of FTA muxes/channels found

MythTV mythtv at cvs.mythtv.org
Thu Aug 5 09:19:52 UTC 2010

#8734: Enabling decryption check increases number of FTA muxes/channels found
 Reporter:  Nick Morrott <knowledgejunkie (at) gmail (dot) com>  |       Owner:  danielk   
     Type:  defect                                               |      Status:  new       
 Priority:  minor                                                |   Milestone:  unknown   
Component:  MythTV - Channel Scanner                             |     Version:  Trunk Head
 Severity:  medium                                               |     Mlocked:  0         
 Using the same configuration as reported in #8726.

 Scan details: full UK DVB-T scan using Sutton Coldfield transmitter with 6
 available muxes. Default signal/tuning timeouts of 1000/3000ms. ALL
 services (DVB+MPEG) scanned.

 Irrespective of whether channel decrytpion testing is enabled in the
 scanner, a single mux is found during a full scan. The NIT contains
 details of the 5 missing missing muxes, which the scanner tries to tune
 to. See #8731 for more details of this.

 However, if decryption testing is disabled (default), only 4 of the 5
 muxes found in the NIT are tuneable. When decryption testing is enabled,
 all 5 of the muxes seen in the NIT are tuneable, and all DVB channels are
 successfully configured.

 I have repeated this test more than once at different times of the day,
 and have observed the same results. The logs (attached) do suggest that
 the signal acquisition time is borderline for this particular card (taking
 of the order of 900ms with a signal timeout of 1000ms) but I do not
 understand how the decryption testing is influencing this (which surely
 only occurs once a lock is obtained on a mux?).

Ticket URL: <http://svn.mythtv.org/trac/ticket/8734>
MythTV <http://www.mythtv.org/>

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