[mythtv-commits] [MythTV/mythtv] ec4558: Update preview picture after record playback exit

[kmdewaal]

  Branch: refs/heads/fixes/32
  Home:   https://github.com/MythTV/mythtv
  Commit: ec4558f3e1bbc021d771276a288039924f181a8b
      https://github.com/MythTV/mythtv/commit/ec4558f3e1bbc021d771276a288039924f181a8b
  Author: Klaas de Waal <klaas at kldo.nl>
  Date:   2022-04-23 (Sat, 23 Apr 2022)

  Changed paths:
    M mythtv/libs/libmyth/programinfo.h
    M mythtv/programs/mythfrontend/programinfocache.cpp

  Log Message:
  -----------
  Update preview picture after record playback exit

When exiting a record playback, the preview thumbnail picture that is shown
at the right/bottom corner of the MythCenter-wide theme, is updated to show
a still image of the recording at the last played position.
Since commit 241d26d42ed625b069d9f8412030679429b14ca5, the 'Add percentage
finished to "View Recordings" and "Upcoming Recordings"', issue #331, the
preview picture is sometimes updated and sometimes not.
This is now fixed by using a new field m_previewUpdate to store a copy of
m_bookmarkUpdate when preview picture generation has been requested.
This field is then used to compare against m_bookmarkUpdate
to flag if the preview picture has to be updated.

Fixes #547

(cherry picked from commit 1064ffc03a920bf97132e558816c7299e130ced7)