This bug was fixed in the package mythtv -
2:0.28.0+fixes.20160413.15cf421-0ubuntu2.16.04.1

---------------
mythtv (2:0.28.0+fixes.20160413.15cf421-0ubuntu2.16.04.1) xenial; urgency=medium

  * Fix for error "Failed to initialize A/V Sync" when trying to play
    hevc/h265 content with vdpau acceleration. (LP: #1673481)

 -- Dave Chiluk <chi...@ubuntu.com>  Sun, 02 Jul 2017 22:37:54 -0500

** Changed in: mythtv (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1673481

Title:
  "Failed to initialize A/V Sync" error trying to play HEVC h.265 with
  vdpau that supports hevc

Status in mythtv package in Ubuntu:
  Fix Released
Status in mythtv source package in Xenial:
  Fix Released
Status in mythtv source package in Yakkety:
  Fix Released
Status in mythtv source package in Zesty:
  Fix Released
Status in mythtv source package in Artful:
  Fix Released

Bug description:
  When trying to play HEVC / h265 / x265 video, frontend fails and
  reports "Failed to initialize A/V Sync" error when using vdpau.

  This is identical to upstream
  https://code.mythtv.org/trac/ticket/12992

  [Impact]
   * When trying to play HEVC / h265 / x265 video, frontend fails and reports 
"Failed to initialize
     A/V Sync" error when using vdpau.

   * Log shows
  vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
  mythfrontend.real: mythfrontend[19461]: I CoreContext tv_play.cpp:5855 
(StartPlayer) TV::StartPlayer(): Created player.
  mythfrontend.real: mythfrontend[19461]: I CoreContext tv_play.cpp:2532 
(HandleStateChange) TV::HandleStateChange(): Changing from None to WatchingVideo
  mythfrontend.real: mythfrontend[19461]: E Decoder videoout_vdpau.cpp:649 
(DrawSlice) VidOutVDPAU: Codec is not supported.
  mythfrontend.real: mythfrontend[19461]: I CoreContext tv_play.cpp:2632 
(HandleStateChange) TV::HandleStateChange(): Main UI disabled.
  mythfrontend.real: mythfrontend[19461]: I CoreContext tv_play.cpp:424 
(StartTV) TV::StartTV(): Entering main playback loop.
  mythfrontend.real: mythfrontend[19461]: E Decoder videoout_vdpau.cpp:559 
(DrawSlice) VidOutVDPAU: IsErrored() in DrawSlice
  mythfrontend.real: mythfrontend[19461]: I CoreContext screensaver-dbus.cpp:82 
(Inhibit) ScreenSaverDBus: Successfully inhibited screensaver via 
org.freedesktop.ScreenSaver. cookie 1810861299. nom nom
  mythfrontend.real: mythfrontend[19461]: W CoreContext screensaver-dbus.cpp:87 
(Inhibit) ScreenSaverDBus: Failed to disable screensaver: Type of message, 
'(ss)', does not match expected type '(susu)'
  mythfrontend.real: mythfrontend[19461]: E Decoder videoout_vdpau.cpp:559 
(DrawSlice) VidOutVDPAU: IsErrored() in DrawSlice
  mythfrontend.real: mythfrontend[19461]: I CoreContext screensaver-x11.cpp:149 
(DisableDPMS) ScreenSaverX11Private: DPMS Deactivated 1
  mythfrontend.real: mythfrontend[19461]: E Decoder videoout_vdpau.cpp:559 
(DrawSlice) VidOutVDPAU: IsErrored() in DrawSlice
  mythfrontend.real: mythfrontend[19461]: E CoreContext mythplayer.cpp:1838 
(AVSync) Player(0): AVSync: Unknown error in videoOutput, aborting playback.
  mythfrontend.real: mythfrontend[19461]: I CoreContext tv_play.cpp:2275 
(HandleStateChange) TV::HandleStateChange(): Attempting to change from 
WatchingVideo to None
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

   * This is identical to upstream
     https://code.mythtv.org/trac/ticket/12992

  [Test Case]

   1. Set up mythtv
   2. Configure mythtv vdpau video decoder with de-interlacing
   3. On frontend play h265/hevc encoded media, with nvidia-375+ and a pascal 
or newer nvidia card.
   4. See error

  [Regression Potential]

   * Fix is narrowly applied to hevc/h265 decoding in the vdpau decoder.
   * Possible but unlikely regressions may be deinterlacing being broken, or 
vdpau ceasing to function.

  [Other Info]
   * https://en.wikipedia.org/wiki/Nvidia_PureVideo .  This will only affect 
video cards that have hevc decoding which is VDPAU Feature set E,F,G,H.
   * https://code.mythtv.org/trac/ticket/12992

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: mythtv-frontend 2:0.28.0+fixes.20160413.15cf421-0ubuntu2
  ProcVersionSignature: Ubuntu 4.8.0-34.36~16.04.1-generic 4.8.11
  Uname: Linux 4.8.0-34-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Mar 16 09:44:08 2017
  InstallationDate: Installed on 2016-01-15 (425 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160115)
  Installed_mythtv_dbg: 2:0.28.0+fixes.20160413.15cf421-0ubuntu2
  MythTVDirectoryPermissions:
   total 4
   drwxr-xr-x 2 root root 4096 Jan  7  2016 videos
  SourcePackage: mythtv
  UpgradeStatus: No upgrade log present (probably fresh install)

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