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[Bug 1363314] Re: Remove dependency of qtmultimedia on gst0.10

 

Note that the original offer to upstream was a mailing list discussion
and an external git repository, needing a bit more than usual effort
from upstream considering they really do not have anyone working on it
on paid time.

So please contribute directly to upstream code review system so that
they can more easily do the review and acceptance. I found Jim was
registered at the codereview site, so I added him now to the Canonical
CLA group.

It seems there's a wip/gstreamer-1.0 branch that has just seen first
non-merge porting commit for this year: https://codereview.qt-
project.org/#/q/status:merged+project:qt/qtmultimedia+branch:wip/gstreamer-1.0,n,z
- the best way to go forward would probably be submitting the still
needed work to that branch, and then submitting that wip branch for
merging against dev when suitable, and addressing any upstream concerns.

-- 
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src in Ubuntu.
https://bugs.launchpad.net/bugs/1363314

Title:
  Remove dependency of qtmultimedia on gst0.10

Status in Dropping Letters:
  Invalid
Status in Music application for Ubuntu devices:
  Invalid
Status in Clock application for Ubuntu devices:
  Invalid
Status in “qtmultimedia-opensource-src” package in Ubuntu:
  New
Status in “thumbnailer” package in Ubuntu:
  Fix Released

Bug description:
  Seems for a few days some of the core apps which use qtmultimedia now
  fail to start on the desktop with output like this:-

  ⟫ qmlscene music-app.qml
  unity::action::ActionManager::ActionManager(QObject*):
          Could not determine application identifier. HUD will not work properly.
          Provide your application identifier in $APP_ID environment variable.

  (qmlscene:25234): GLib-GObject-WARNING **: cannot register existing
  type 'GstFormat'

  (qmlscene:25234): GLib-CRITICAL **: g_once_init_leave: assertion
  'result != 0' failed

  (qmlscene:25234): GLib-GObject-WARNING **: cannot retrieve class for
  invalid (unclassed) type '<invalid>'

  (qmlscene:25234): GLib-GObject-WARNING **: cannot register existing
  type 'GstQuery'

  (qmlscene:25234): GLib-CRITICAL **: g_once_init_leave: assertion
  'result != 0' failed

  (qmlscene:25234): GLib-GObject-WARNING **: cannot retrieve class for
  invalid (unclassed) type '<invalid>'

  (qmlscene:25234): GLib-GObject-WARNING **: cannot register existing
  type 'GstObject'

  (qmlscene:25234): GLib-CRITICAL **: g_once_init_leave: assertion
  'result != 0' failed

  (qmlscene:25234): GLib-GObject-WARNING **: cannot retrieve class for
  invalid (unclassed) type '<invalid>'

  
  Attached is the strace output as foo.txt

  A simple sample app which reproduces the issue can be seen at
  https://code.launchpad.net/~andrew-hayzen/+junk/test-mediaplayer-app

  Also affected include core apps which use Audio {} such as Clock and
  Dropping Letters.

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