[mythtv-commits] Re: Ticket #616: Wrong SNR/SIG values for some DVB cards

[MythTV]

#616: Wrong SNR/SIG values for some DVB cards
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 Reporter:  Adam Egger  |        Owner:  danielk
     Type:  defect      |       Status:  closed 
 Priority:  minor       |    Milestone:  0.19   
Component:  mythtv      |      Version:  head   
 Severity:  medium      |   Resolution:  fixed  
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Changes (by danielk):

  * resolution:  => fixed
  * status:  reopened => closed

Comment:

 (In [8038]) Fixes #616.

 This should make DVB drivers that report the signal improperly
 work better, and still be compatible with well implemented drivers.

 The problem is really in the DVB API v 3.x being unclear for
 both the signal and signal-to-noise ratio. This isn't properly
 addressed in the 4.0 API, but the API has been changed to better
 reflect practice so I'm using it for interpreting these values.
 The proposed 4.0 API still does not specify how the drivers
 should calculate these values; but any one looking at both
 the 3.1 and 4.0 API's should see that these values should be
 in the range 0..32767 so that they will always change
 monotonically with respect to signal quality changes for
 anyone implementing either API.

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Ticket URL: <http://cvs.mythtv.org/trac/ticket/616>
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