Opened 7 years ago
Last modified 6 years ago
#13030 closed Bug Report - General
Hardware deinterlacing does not work with recent versions of raspbian — at Version 2
| Reported by: | Peter Bennett | Owned by: | Peter Bennett |
|---|---|---|---|
| Priority: | minor | Milestone: | unknown |
| Component: | Ports - rPi | Version: | 0.28.1 |
| Severity: | medium | Keywords: | |
| Cc: | Ticket locked: | no |
Description (last modified by )
Sometime after raspbian version 2016-02-09, hardware deinterlacing stopped working. Withe the default setting, no deinterlacing is done. Some settings cause the fallback deinterlacer to be used.
As a work around you can select deinterlacer "Line Double(HW)".
See also https://lists.gt.net/mythtv/users/607966
Alternatively download and use a prior version of raspbian http://downloads.raspberrypi.org/raspbian/images/
Change History (2)
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I have done some testing of this bug. It looks to me like the hardware advanced and fast deinterlace may have stopped working with the release of the RPI3. I am unable to see advanced deinterlace working at all on RPI3. Earlier versions of raspbian will not boot on the RPI3.
With a small test program and lots of playing around I have found that advanced deinterlace only works with a tunneled path from decoder to deinterlacer. MythTV normally has the deinterlace as part of the video output stage.
There was a firmware change with firmware version 2d0f7ec (July 8, 2016). The nFlags now carry deinterlace information which must be passed forward with each buffer.