VC-1 1080p24 Visual Artifacts in OpenELEC/Kodi with VAAPI acceleration

[Yuri_S_2]

Gentlemen, not sure if this should be in this thread, so if not, mods, please move it to the appropriate thread.

I am having issues with some 1080p24 VC-1 files having visual artifacts when VAAPI hardware acceleration is enabled. The artifacts do disappear if I turn hardware acceleration off, but then the video stutters (not enough CPU power).

I am running OpenELEC 6.0.0 (x86_64) Generic build. The system is:
ASRock N3000 with Crucial 2x4GB RAM kit and a 250GB Samsung 850 EVO mSATA drive. 
I'm playing the video off the mSATA, but the results are the same if I play it off a USB drive. My UEFI version is N3000-NUC P1.50, CPU set to Sport Mode. 

I tried newer builds with 4.4-rc7 kernel, but the problem remains.

I cut a section of the video I'm having problems with, and a member on the OpenELEC forum confirmed that they have the same problem on ASRock N3000. I uploaded the section of the video below.

File: https://docs.google.com/uc?id=0B9X316MN6HHvSlNWb1ZhSGo2X2M&export=download

I tried to address this issue on the OpenELEC and Kodi forums, but was refered to get more support here. OpenELEC forum thread is here: http://openelec.tv/forum/116-vaapi-intel/79224-asrock-beebox-n3000-vc-1-visual-artifacts

Any help is appreciated.

[Jiandong_Z_Intel]

Hi Yuri S,

I want to know some details regarding your system.

Is your CPU is "Intel Celeron N3000" ? following command line can help to do the check

$ cat /proc/cpuinfo | grep -i intel

Can you tell me which VAAPI implementation be used in your system ? following command line can help to do the check.

$ vainfo

Thanks,

Zachary

[Yuri_S_2]

Hi!

Thank you for your response and I apologize mine took a while.

Here's the output of $ cat /proc/cpuinfo | grep -i intel:

vendor_id    : GenuineIntel
model name    : Intel(R) Celeron(R) CPU  N3000  @ 1.04GHz
vendor_id    : GenuineIntel
model name    : Intel(R) Celeron(R) CPU  N3000  @ 1.04GHz

$ vainfo output:

libva info: VA-API version 0.38.0
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_38
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.38 (libva 1.6.1)
vainfo: Driver version: Intel i965 driver for Intel(R) CherryView - 1.6.1
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            :    VAEntrypointVLD
      VAProfileMPEG2Simple            :    VAEntrypointEncSlice
      VAProfileMPEG2Main              :    VAEntrypointVLD
      VAProfileMPEG2Main              :    VAEntrypointEncSlice
      VAProfileH264ConstrainedBaseline:    VAEntrypointVLD
      VAProfileH264ConstrainedBaseline:    VAEntrypointEncSlice
      VAProfileH264Main               :    VAEntrypointVLD
      VAProfileH264Main               :    VAEntrypointEncSlice
      VAProfileH264High               :    VAEntrypointVLD
      VAProfileH264High               :    VAEntrypointEncSlice
      VAProfileH264MultiviewHigh      :    VAEntrypointVLD
      VAProfileH264MultiviewHigh      :    VAEntrypointEncSlice
      VAProfileH264StereoHigh         :    VAEntrypointVLD
      VAProfileH264StereoHigh         :    VAEntrypointEncSlice
      VAProfileVC1Simple              :    VAEntrypointVLD
      VAProfileVC1Main                :    VAEntrypointVLD
      VAProfileVC1Advanced            :    VAEntrypointVLD
      VAProfileNone                   :    VAEntrypointVideoProc
      VAProfileJPEGBaseline           :    VAEntrypointVLD
      VAProfileJPEGBaseline           :    VAEntrypointEncPicture
      VAProfileVP8Version0_3          :    VAEntrypointVLD
      VAProfileVP8Version0_3          :    VAEntrypointEncSlice
      VAProfileH264MultiviewHigh      :    VAEntrypointVLD
      VAProfileH264MultiviewHigh      :    VAEntrypointEncSlice
      VAProfileH264StereoHigh         :    VAEntrypointVLD
      VAProfileH264StereoHigh         :    VAEntrypointEncSlice
      VAProfileHEVCMain               :    VAEntrypointVLD

Thank you.

[Jiandong_Z_Intel]

Hi Yuri S,

From your output your using Intel OTC graphic driver (libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so).

Because you are using graphic driver from 01.org. Maybe following URL can help you :

https://01.org/linuxgraphics/forum

Thanks,

Zachary

[Yuri_S_2]

Hi,

Can you suggest an alternative driver I can try?

Thank you.

[Jiandong_Z_Intel]

Hi Yuri S,

Intel Media Server Studio doesn't support your platform, Maybe you need upgrade your hardware, more details you can refer to "System Requirements" in page 2 in Release Note

if you can use Windows on you current platform, your can try Intel® Media SDK.

Thanks,

Zachary