[mythtv-commits] Ticket #2541: mythbackend segfault when attempting to record from hdhomerun using qam256

[MythTV]

#2541: mythbackend segfault when attempting to record from hdhomerun using qam256
------------------------------+---------------------------------------------
 Reporter:  dab at dab-tech.com  |        Owner:  danielk
     Type:  defect            |       Status:  new    
 Priority:  minor             |    Milestone:  unknown
Component:  mythtv            |      Version:  0.20   
 Severity:  medium            |   Resolution:         
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Comment (by jwestfall):

 There is a bug in ChannelBase::SetCachedATSCInfo().


 {{{
 int chansep = chan.find("_");
 ...
 currentATSCMinorChannel = chan.right(chan.length()-chansep-1).toInt();
 currentATSCMajorChannel = chan.left(chansep).toInt();
 }}}


 The value passed to right() will be bogus if the number of digits before
 and after the _ isnt the same.

 The logs show its passing 58_0, which make it chan.right(4 - 2 - 1 = 1, or
 "8_0") which results in currentATSCMinorChannel becoming -1.  same thing
 happens with currentProgramNum.  Fix would seem to be making it
 chan.right(chansep+1), but I have no way to test.

 It doesnt seem this will fix the crash since
 TVRec::SetupDTVSignalMonitor() is wanting an atsc minor > 0

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/2541#comment:2>
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