simple_decode Error! Device operation failure. src/simple_decode.cpp 197

[然_魏_]

Hi, I tried to run few simple code on Linux CentOS 7, using MediaServerStudioEssentials2015R6. installed following
MediaServerStudioEssentials2015R6\SDK2015Production16.4.2.1\media_server_studio_getting_started_guide.pdf
and try running one example applications in
http://software.intel.com/sites/default/files/mediasdk-tutorials-0.0.3.tar.gz
but emerge some problems~

Platform:
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[root@storm _build]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
      8  Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
[root@storm _build]# lspci -nn -s 00:02.0
00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412]

(rev 06)
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Error：
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[root@storm _build]# ./simple_decode test_stream.264 output_stream_de.yuv
libva info: VA-API version 0.35.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'iHD'
libva info: Trying to open /opt/intel/mediasdk/lib64/iHD_drv_video.so
libva info: Found init function __vaDriverInit_0_32
libva info: va_openDriver() returns 0

 Device operation failure. src/simple_decode.cpp 197
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What should I do? can anyone help me? Thanks~

[Jeffrey_M_Intel1]

This may be an install issue.

• What do you see with 'uname -r' and 'ls /dev/dri'?
• Are results different as root?

[然_魏_]

Jeffrey Mcallister (Intel) wrote:

This may be an install issue.

• What do you see with 'uname -r' and 'ls /dev/dri'?
• Are results different as root?

Hi~Both normal user and root are:

——————————————————————

[root@storm _build]# uname -r
3.10.0-229.20.1.el7.x86_64
[root@storm _build]# ls /dev/dri
card0  controlD64

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Is anything wrong?

[Jeffrey_M_Intel1]

For Media Server Studio to work on Linux several updates to the graphics stack are required.  One important update is recompiling the kernel.

You should see something like  3.10.0-229.1.2.39163.MSSr6.el7.centos.x86_64 from uname -r.  When you are running this kernel you should see a renderD interface in /dev/dri.

• Did you run the install_sdk_UMD_CentOS.sh and build_kernel_rpm_CentOS.sh scripts as described in the Getting Started Guide?
• Did you install the newly built kernel?
• Can you see it in the /boot directory?  Is it an option in your GRUB menu after reboot?

If the new kernel isn't the default in GRUB you may have to choose it manually when booting.

[然_魏_]

Jeffrey Mcallister (Intel) wrote:

For Media Server Studio to work on Linux several updates to the graphics stack are required.  One important update is recompiling the kernel.

You should see something like  3.10.0-229.1.2.39163.MSSr6.el7.centos.x86_64 from uname -r.  When you are running this kernel you should see a renderD interface in /dev/dri.

• Did you run the install_sdk_UMD_CentOS.sh and build_kernel_rpm_CentOS.sh scripts as described in the Getting Started Guide?
• Did you install the newly built kernel?
• Can you see it in the /boot directory?  Is it an option in your GRUB menu after reboot?

If the new kernel isn't the default in GRUB you may have to choose it manually when booting.

I have solved seral problems accroding  with what you said, and run the program successfully!

Thanks again and Happy Thanksgiving Day!  ^ ^