[mythtv-commits] Ticket #2975: Remove pcHDTV V4L DTV support

[MythTV]

#2975: Remove pcHDTV V4L DTV support
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 Reporter:  danielk  |        Owner:  danielk
     Type:  task     |       Status:  closed 
 Priority:  minor    |    Milestone:  0.21   
Component:  mythtv   |      Version:  head   
 Severity:  medium   |   Resolution:  fixed  
  Mlocked:  0        |  
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Changes (by danielk):

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


Comment:

 David, ATSC is an invalid TV format for capturing using the analog ivtv
 card. Setting the TV format for the video source to the appropriate PAL,
 SECAM, or NTSC format as should fix the reported problem.

 This usingv4l1 fall-back hack was only added because the first pcHDTV
 HD-2000 v4l driver was a v4l2 driver except for this one aspect where it
 required one v4l1 call. The ivtv drivers do not require this hack, I think
 you were simply able to get away with a incorrectly configured tvformat
 because of bugs in the old v4l1 interface.

 We can't get rid of the format call in the absence of a tuner because it
 tells the hardware how to decode the signal. If you are in Luxembourg you
 need to tell the hardware whether to decode the channel as PAL or SECAM on
 a per channel basis; without setting the standard you would, at best, get
 B&W images with the wrong standard configured.

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Ticket URL: <http://svn.mythtv.org/trac/ticket/2975#comment:5>
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