[mythtv-commits] Ticket #13618: Issue in macOS for playback of 480p/i videos on retina display

[MythTV]

#13618: Issue in macOS for playback of 480p/i videos on retina display
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 Reporter:  jhoyt4                   |          Owner:  mark-kendall
     Type:  Bug Report - General     |         Status:  infoneeded
 Priority:  minor                    |      Milestone:  needs_triage
Component:  MythTV - Video Playback  |        Version:  v31-fixes
 Severity:  medium                   |     Resolution:
 Keywords:  MacOS VideoToolbox       |  Ticket locked:  0
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Changes (by mark-kendall):

 * status:  accepted => infoneeded


Comment:

 This is clearly related to:-

 https://doc.qt.io/qt-5/highdpi.html

 Unfortunately, my ageing macbook does not have a display that I can test
 with and I'm struggling to understand why the behaviour would be different
 when playing HD material - and indeed why there are no problems with the
 GUI.

 Can you provide the same logs for:-

 - playback of HD material (i.e. when it works)
 - playback with SD material after 'Open in Low Resolution' works

 As you are on Qt5.14, could you also try setting the
 'QT_ENABLE_HIGHDPI_SCALING' environment variable and attach logs.

 What happens if you enable video mode switching and try and change the
 GUI/video resolution to 2560x1600?

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Ticket URL: <https://code.mythtv.org/trac/ticket/13618#comment:3>
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