Intel Media SDK in Dockerfile to use Intel HW accelerator for video-processing.

[mhasnainamjad]

Hi Intel Community,
I am working to use Intel Media SDK library to handle video processing. I have written a Dockerfile(attached as txt file) to install all required packages.
I tested my Dockerfile on two different systems, details as given below
System 1 Detail:
CPU Detail: Intel(R) Atom(TM) CPU E3845
OS Detail: 16.04
Kernal Version: 4.4.0-59-generic
Docker Version: 20.10.5, build 55c4c88
When I ran dockerfile on this system, image built successfully and ran this build image using given below command
docker run -it --rm --device /dev/dri:/dev/dri --cap-add sys_ptrace  <docker-image-name> /bin/bash
In Docker Container
When i run `vainfo`, I am getting this error.
error: can't connect to X server!
libva info: VA-API version 1.11.0
libva info: User environment variable requested driver 'iHD'
libva info: Trying to open /usr/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_11
libva error: /usr/lib/dri/iHD_drv_video.so init failed
libva info: va_openDriver() returns 1
vaInitialize failed with error code 1 (operation failed),exit

System 2 Detail:
CPU Detail: Intel(R) Core(TM) i7-6820HK CPU
OS Detail: Ubuntu 20.04.1 LTS
Kernal Version: 5.8.0-44-generic
Docker Version: 19.03.13, build 4484c46d9d
When I ran dockerfile on this system, image built successfully and ran this build image using given below command
docker run -it --rm --device /dev/dri:/dev/dri --cap-add sys_ptrace <docker-image-name> /bin/bash
In Docker Container
When i run `vainfo`, everything ran fine.
error: can't connect to X server!
libva info: VA-API version 1.11.0
libva info: User environment variable requested driver 'iHD'
libva info: Trying to open /usr/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_11
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.11 (libva 2.11.0.pre1)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 21.1.2 (7a858c83)
vainfo: Supported profile and entrypoints
VAProfileNone : VAEntrypointVideoProc
VAProfileNone : VAEntrypointStats
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Simple : VAEntrypointEncSlice
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointFEI
VAProfileH264Main : VAEntrypointEncSliceLP
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointFEI
VAProfileH264High : VAEntrypointEncSliceLP
VAProfileVC1Simple : VAEntrypointVLD
VAProfileVC1Main : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointEncPicture
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileH264ConstrainedBaseline: VAEntrypointFEI
VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
VAProfileVP8Version0_3 : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointEncSlice
VAProfileHEVCMain : VAEntrypointFEI

My question is, what am i doing wrong here. Why same thing working in one machine and not on other machine. Is this due to different intel cpu?. Any help would be appreciated.

Thanks