Video does not return to the first frame after finishing

In the gallery video player we load through a Loader the Video element (to save memory) and destroy it when browsing away from the video.

This somehow causes the media hub client not receiving the EndOfStream signal from the server, after the first time the Video component is re-created.

This problem is caused by a bug in the media hub client (which is used by qtubuntu-media which is the backend of the QML Video element). When an instance of the Video is destroyed and re-created the media hub client stops receiving events from the server.
This is reported in bug 1378311

Since we are using Video elements inside of ListView delegates, the ListView may destroy these elements at any time, unless we force all elements to stay in memory, which wouldn't be very good on a phone.

@Ugo, the media hub issue has been fixed, gallery still display an empty screen after playing a video, is there work needed on that side as well?

we are going to modify gallery-app to play back videos the same way as camera-app. That is, it will invoke mediaplayer app rather than try to play them inline. Once mediaplayer-app is made a trusted session the playback will be embedded in the gallery via the same mechanism.

This bug was fixed in the package gallery-app - 0.0.67+15.04.20150202-0ubuntu1

---------------
gallery-app (0.0.67+15.04.20150202-0ubuntu1) vivid; urgency=medium

  [ Arthur Mello ]
  * Makes gallery-app to call MediaPlayer to play videos instead of
    playing by itself (LP: #1324622)
  * Make fullscreen mode dynamic when on device (LP: #1415140)

  [ Ubuntu daily release ]
  * New rebuild forced

gallery-app (0.0.67+15.04.20150126.2~rtm-0ubuntu1) 14.09; urgency=low

  [ Arthur Mello ]
  * Do not create objects if the file was removed from the time the
    create was requested and when it was started

  [ Florian Boucault ]
  * Do not create objects if the file was removed from the time the
    create was requested and when it was started

  [ Ubuntu daily release ]
  * New rebuild forced
 -- Ubuntu daily release <email address hidden> Mon, 02 Feb 2015 23:41:37 +0000

This bug was fixed in the package gallery-app - 0.0.67+15.04.20150219~rtm-0ubuntu1

---------------
gallery-app (0.0.67+15.04.20150219~rtm-0ubuntu1) 14.09; urgency=medium

  [ Olivier Tilloy ]
  * Remove a useless runtime dependency. The dependency on
    Ubuntu.Components.Extras was removed at revision 1008 (on 2014-07-
    03) but debian/control wasn’t updated accordingly back then.

gallery-app (0.0.67+15.04.20150217-0ubuntu1) vivid; urgency=medium

  [ Olivier Tilloy ]
  * Fix failing autopilot tests that were broken by the changes
    introduced at revision 1143 (fix for bug #1416043). (LP: #1416043)
 -- CI Train Bot <email address hidden> Thu, 19 Feb 2015 09:10:33 +0000