[Bug 1652466] [NEW] Totem can't play videos on Gallium graphics without mesa-va-drivers

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Impact
-------
Totem can't play videos if gstreamer1.0-vaapi is installed on Gallium graphics in Xenial because mesa-va-drivers is not installed as a dependency of va-driver-all.

Here is the dependency chain in Xenial:
gstreamer1.0-vaapi Depends on libva1
libva1 Recommends va-driver-all
va-driver-all Depends on i965-va-driver vdpau-va-driver (no mesa-va-drivers)

This is fixed in version 1.7.0-2 in Debian and Yakkety.
libva (1.7.0-2) unstable; urgency=medium

  * debian/control:
    - Add mesa-va-drivers as alternative to Depends of va-driver-all.
    - Bump Standards-Versions.

 -- Sebastian Ramacher <sramacher at debian.org>  Wed, 11 May 2016 17:32:06
+0200


Test case
----------
- Purge va-driver-all and mesa-va-drivers if already installed
- Install va-driver-all from xenial-proposed
- Make sure that mesa-va-drivers is pulled in
- Play videos in Totem with gstreamer1.0-vaapi installed and make sure that videos play nicely.

Here is the terminal output of Totem (with gstreamer1.0-vaapi installed and no mesa-va-drivers):
:~$ totem
Stream with high frequencies VQ coding
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/radeonsi_drv_video.so
libva info: va_openDriver() returns -1
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/gallium_drv_video.so
libva info: va_openDriver() returns -1
libva info: VA-API version 0.39.0
libva info: va_getDriverName() returns 0

When mesa-va-drivers is installed, Totem plays videos just fine.


Regression potential
---------------------
Since there are no code changes at all, I cannot think of any regressions.


ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: va-driver-all 1.7.0-1
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Dec 24 21:54:20 2016
InstallationDate: Installed on 2016-04-26 (242 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: libva
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: hundredpapercuts
     Importance: Medium
         Status: Confirmed

** Affects: libva (Ubuntu)
     Importance: Medium
         Status: Confirmed

** Affects: totem (Ubuntu)
     Importance: Medium
         Status: Invalid


** Tags: amd64 apport-bug patch xenial
-- 
Totem can't play videos on Gallium graphics without mesa-va-drivers
https://bugs.launchpad.net/bugs/1652466
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