Re: Trouble playing MP4 videos under Fedora 21 -- Gstreamer thinks a codec is missing which is actually installed

[Andras Simon]

2015-01-07 18:19 GMT+01:00, Jonathan Ryshpan <jonrysh(a)pacbell.net&gt;:
>  MP4 videos played OK under Fedora 20, but when I attempt to play one
>  under Fedora 21, I get a popup from Dragon Player (KDE's default video
>  player).
>
>          Dragon Player requires additional plugins for this operation
>          MPEG-4 AAC decoder
>          MPEG-4 Video decoder
>
>          The following plugins are required.  Do you want to search for
>          these now?
>
>  When I click Continue, after a delay to download a cache, I get this
>  popup:
>
>          To be Installed
>
>                  gstreamer1-libav
>                  gstreamer1-plugins-bad-free
>                  gstreamer1-bad-freeworl
>                  gstreamer1-plugins-good
>
>  But when I click Continue, after another delay to download a cache, I
>  get this popup:
>
>          The package that is trying to be installed is already installed.
>
>                                          Details
>
>          gstreamer1-plugins-bad-free-1.4.4-1.fc21.x86_64 is already
>          installed
>
>  System is
>
>          4 processor x86_64 (AMD)
>          Nvidia Geforce 9500GT video card
>          Fedora 21 with all updates
>          Nouveau video driver
>          KDE 4.14.3
>          Dragon player 2.0
>
>  Where do I go from here? 
To mplayer?

Andras