[mythtv-commits] Ticket #13230: Android green line when watching certain videos

[MythTV]

#13230: Android green line when watching certain videos
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 Reporter:  pbennett              |          Owner:  pbennett
     Type:  Bug Report - General  |         Status:  accepted
 Priority:  minor                 |      Milestone:  30.0
Component:  Ports - Android       |        Version:  Master Head
 Severity:  medium                |     Resolution:
 Keywords:                        |  Ticket locked:  0
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Comment (by markspieth):

 New patch to solve yuv upscaling green line for sample video. also works
 for 720x576 sources (many channels here)

 Fixed onefield, linear and kernel gl hw deint for yuv.

 Things to check for.
  * quality of deinterlacing at low res (not sure if better or worse)
  * HD deinterlacing quality
  * HD green lines (havent seen any)
  * test with other devices (not done yet with my S912)
  * test on PC version (not done yet)

 The root problem is that the image is first inverted as GL has 0,0 at
 bottom left. That means the first line is NLines-1 on bottom field of
 frame.

 This may or not be the same depending on whether the deinterlacer is the
 first shader or other ones. I dont understand this properly yet. TBD.

 It may be better to flip the last field instead of the first, then the
 algos will process the line in forward instead of reverse order.

 I cant see why this would not be an issue for non ES version.

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Ticket URL: <https://code.mythtv.org/trac/ticket/13230#comment:23>
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