[mythtv-commits] Ticket #2780: HDTV (ATSC) tuning is not working

[MythTV]

#2780: HDTV (ATSC) tuning is not working
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 Reporter:  james.meyer at operamail.com  |        Owner:  danielk 
     Type:  defect                     |       Status:  reopened
 Priority:  minor                      |    Milestone:  unknown 
Component:  mythtv                     |      Version:  head    
 Severity:  high                       |   Resolution:          
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Changes (by newbury at mandamus.org):

  * status:  closed => reopened
  * resolution:  fixed =>
  * severity:  medium => high

Comment:

 This not the only problem with ATSC tuning/scanning. The code which
 completes the channel table (at the least) is broken.

 SVN 12265, PVR500 and HD3000, start from scratch by removing ALL cards and
 sources and re-starting (including recreating zap2it lineups). Scanning
 produces no watcheable channels for the HD3000, although listing encrypted
 channels. PVR scan is correct. Channel lock is reported promptly at each
 tuning step for the HD3000. (the S/N ratio is still reported as zero...I
 thought I saw that that was fixed..not in 12265, maybe later?). End result
 NO channels listed for the HD3000... Import of channels.conf also does not
 work. It does not matter which type of scan or cable type is selected.

 Note, scanning with atscscan, tuning with azap and cat'ing output to a
 file, produces output perfectly playable by mplayer: this is NOT a
 hardware problem. It's just that Myth does not properly parse the stream
 to create the information needed. AND the channels.conf import is ALSO
 broken so even the OLD methods will not work.


 Capturecard and cardinput appear correct. Dtv_multiplex is now correct:
 sistandard is filled in as atsc..As noted it was improperly filled in as
 something else as of SVN11850 or so.

 Channel is NOT completed correctly. Here are 2 lines, sourceid 1 is for a
 PVR500, and sourceid 2 is the HD3000. Note that mplexid as 32768 and
 serviceid is '0'. Since I have a printout of how the channels were before
 I tried the scan which busted things, I will try poking the correct
 mplexid values into the table and see whether it will then find the
 serviceid....And doesn't the atsc_minor_chan equal the serviceid now???


 1015    15      15      1       CKXT    CKXT - Sun TV           NULL
 34227   0       32768   32768   32768   32768   Default         0       1
 0       32767   0       NULL    0       15      0

 2119    119     119     2       CHAN    Global BC               NULL
 10050   0       32768   32768   32768   32768   Default         0       1
 0       32767   0       NULL    0       119     0

 Looking at those 2 lines, you would not know that sourceid 2 is an ATSC
 tuner (fourth entry, each line). The xmltvid's are 34227 and 10050. The
 32767 number is supposed to be the mplexid, and the zero following that is
 the serviceid...Interesting that it is 32767 == -1 ?

 What other information would you like to see to help parse this problem?

 Geoff Newbury

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Ticket URL: <http://svn.mythtv.org/trac/ticket/2780#comment:3>
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