MFXVideoDECODE_Init returns MFX_ERR_UNSUPPORTED

[guerzoni__filippo]

Hi,
I've succesfully deployed Media SDK 2016 on Centos in the past.
Now I would like to use Media SKD 2017 on ubuntu,
Running the decode_sample provided, I always get:
Return on error: error code -3,    MediaServerStudioEssentials2017/MediaSamples_Linux_2017/samples/sample_decode/src/pipeline_decode.cpp    404
Return on error: error code 1,    MediaServerStudioEssentials2017/MediaSamples_Linux_2017/samples/sample_decode/src/sample_decode.cpp    646

I didn't patch the default kernel because i915 graphic driver is already installed.
Please could you suggest a solution?
Thanks in advance

Here is my environment:
- MediaServerStudioEssentials2017
- Intel® Core™ i5-5200U CPU, Intel® HD Graphics 5500
- Ubuntu 16.04 64bit, kernel 4.4.0-57-generic

libva info: VA-API version 0.99.0
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
vainfo: VA-API version: 0.99 (libva 1.67.0.pre1)
vainfo: Driver version: 16.5.55964-ubit

lsmod | grep i915
i915                 1208320  5
i2c_algo_bit           16384  1 i915
drm_kms_helper        155648  1 i915
drm                   364544  6 i915,drm_kms_helper
video                  40960  1 i915

[Jiandong_Z_Intel]

Hi,

Regarding use MSS on Ubuntu, you can refer this article: 

• How to setup/install Intel® Media Server Studio on secondary Linux* OS

And patch the patches is important step.

Thanks,

Zachary

[guerzoni__filippo]

Thank you Zachary for  your quick answer.

I've already downloaded and implemented the linked document.

The problem is that patching Ubuntu kernel sources returns errors because that kernel is already patched with Intel graphic driver. Installing upstream kernel (from kernel.org) is not an option for me. So I'd rather prefer to make Ubuntu kernel just work. The best would be understand what's happening on my machine. Could you provide any advice?

Thanks in advance

[Jiandong_Z_Intel]

Your Ubuntu kernel already include the patches of MSS, right ? can you double check this ?

Sometime patches merge not correct will cause failure to run media function. 

Thanks,

Zachary

[guerzoni__filippo]

Yeah I confirm that.

Please check the first thread post where I reported the vainfo output and the i915 driver loaded by 'original' ubuntu kernel. Those outputs are the same as they were produced by a patched upstream kernel.

Regards

[Jiandong_Z_Intel]

What is the output of command line ?

$ ls -l /dev/dri | grep  renderD128        ## if no output, you need do the kernel patch merge.

$ cat /proc/kallsyms | grep userptr      ## if no output, you need do the kernel patch merge.

[guerzoni__filippo]

Thank you Zachary,

Below you'll find the outputs. They seem fine:

$ ls -l /dev/dri | grep  renderD128
crw-rw----+ 1 root video 226, 128 dic 29 05:36 renderD128

$ cat /proc/kallsyms | grep userptr
0000000000000000 t __i915_gem_userptr_set_active    [i915]
0000000000000000 t i915_gem_userptr_put_pages    [i915]
0000000000000000 t cancel_userptr    [i915]
0000000000000000 t i915_gem_userptr_mn_invalidate_range_start    [i915]
0000000000000000 t __i915_gem_userptr_set_pages    [i915]
0000000000000000 t i915_gem_userptr_get_pages    [i915]
0000000000000000 t __i915_gem_userptr_get_pages_worker    [i915]
0000000000000000 t i915_gem_userptr_init__mmu_notifier    [i915]
0000000000000000 t __cancel_userptr__worker    [i915]
0000000000000000 r i915_gem_userptr_notifier    [i915]
0000000000000000 t i915_gem_userptr_dmabuf_export    [i915]
0000000000000000 t i915_gem_userptr_release    [i915]
0000000000000000 r i915_gem_userptr_ops    [i915]
0000000000000000 t i915_gem_init_userptr    [i915]
0000000000000000 t i915_gem_userptr_ioctl    [i915]

Regards