[mythtv-commits] Ticket #13054: Video Playback vertical offset when using UseVideoModes=1 for JudderFree support

MythTV noreply at mythtv.org
Sun Jun 11 04:51:46 UTC 2017


#13054: Video Playback vertical offset when using UseVideoModes=1 for JudderFree
support
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 Reporter:  support@…                |          Owner:  jyavenard
     Type:  Bug Report - General     |         Status:  new
 Priority:  minor                    |      Milestone:  unknown
Component:  MythTV - Video Playback  |        Version:  0.28.1
 Severity:  medium                   |     Resolution:
 Keywords:                           |  Ticket locked:  0
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Comment (by Steven Ellis <support@…>):

 I can now reproduce this on two different frontends
  * One with NVidia Graphics
  * One with onboard Intel Graphics

 On both machines
  * No playback alignment issues with !UseVideoModes=0
  * Vertical offset of around 50 pixels with !UseVideoModes=1 and Normal
  * Vertical offset of around 130 pixels with !UseVideoModes=1 and OpenGL
  * No playback alignment issues with !UseVideoModes=1 and VPDAU with
 NVidia Graphics

 It is clear from the logs that the calls to !VideoOutWindow::!MoveResize
 have odd Display Rect sizes when we enable !UseVideoModes but I can't
 isolate where the change is being made.

 The other key difference is we're seeing an additional call to
 !VideoOutWindow::!MoveResize  when running with OpenGL or Normal video
 output compared to the VDPAU drive.

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Ticket URL: <https://code.mythtv.org/trac/ticket/13054#comment:4>
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