[mythtv-commits] Ticket #5462: Displayed program length is 1.25X of actual length with pvrusb2

MythTV mythtv at cvs.mythtv.org
Tue Jun 24 16:31:06 UTC 2008

#5462: Displayed program length is 1.25X of actual length with pvrusb2
 Reporter:  dan.bodoh at gmail.com  |        Owner:  danielk 
     Type:  defect               |       Status:  assigned
 Priority:  minor                |    Milestone:  unknown 
Component:  mythtv               |      Version:  unknown 
 Severity:  medium               |   Resolution:          
  Mlocked:  0                    |  

Comment(by isely at pobox.com):

 Actually I think there might be at least 2 problems here.  I said to
 Daniel in e-mail that I would implement a workaround for one problem this
 weekend, but I don't have a good characterization for the other problem

 First Problem: Default GOP size is not really correct for NTSC. This input
 to the mpeg encoder happens via the cx2341x module.  The module is relying
 on the parent driver (e.g. pvrusb2) to set this up correctly.  Hans thinks
 that the module should be taking on a more proactive role here.  In the
 mean time (this weekend) I'll see about implementing a workaround in the
 driver for.

 However that's just the default GOP size.

 Second Problem: If mythtv is querying the driver to discover the current
 GOP size then things should still work, even with the wrong default.  But
 apparently it isn't, so there's a second problem going on.  I will look at
 the pvrusb2 driver and verify that this is being passed through correctly
 however I do not know what the problem here is yet.  So I can't promise a
 fix if I don't even know if the driver is the cause.


Ticket URL: <http://svn.mythtv.org/trac/ticket/5462#comment:7>
MythTV <http://www.mythtv.org/>

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