[Bug 777115] New: Throws libva messages.

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=777115

            Bug ID: 777115
           Summary: Throws libva messages.
    Classification: Platform
           Product: GStreamer
           Version: 1.x
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gstreamer-vaapi
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: maitaikawika at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
                CC: bsreerenj at gmail.com, vjaquez at igalia.com
     GNOME version: ---

In the context of using Beetbox/beets (a music library management system) to
process music files using GStreamer as a back end, when beets encounters a .mp4
file, it causes the following messages to be issues to the command window,
rendering any other work being done in that window impossible:

error: XDG_RUNTIME_DIR not set in the environment.
libva info: VA-API version 0.39.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_39
libva info: va_openDriver() returns 0

I've worked with the beets developers on this, and have determined through
trial and error that this only occurs, or rather I can only recreate it, when
beets is using GStreamer and encounters a .mp4 file. I surmise it's trying to
use hardware acceleration to process the file and that is somehow causing these
messages to be generated.

Is there a fix or workaround for this? Or is there a way to silence the
messages? 

The machine running the software is an Ubuntu 16.04.1 LTS, 4.4.0-57-generic
kernel, 64 bit, server variant (so no X windows, no desktop and no desktop apps
loaded), fully updated from Ubuntu repositories as of 01/02/17

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