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#1 2014-08-24 08:46:47

Magbed
Member
Registered: 2013-06-02
Posts: 30

[SOLVED] VA-API Steam in Home Streaming

So steam has added support for intel hw decoding.

Does anyone knows how to activate this on Arch linux?

Ive installed libva-intel-driver  and libva, but it keeps using software decoding.

Could it be because im running a 64 bit version? and steam runs on 32 bits?

This is my vainfo output.

libva info: VA-API version 0.35.1
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_35
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.35 (libva 1.3.1)
vainfo: Driver version: Intel i965 driver for Intel(R) Sandybridge Mobile - 1.3.2
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            :	VAEntrypointVLD
      VAProfileMPEG2Main              :	VAEntrypointVLD
      VAProfileH264ConstrainedBaseline:	VAEntrypointVLD
      VAProfileH264ConstrainedBaseline:	VAEntrypointEncSlice
      VAProfileH264Main               :	VAEntrypointVLD
      VAProfileH264Main               :	VAEntrypointEncSlice
      VAProfileH264High               :	VAEntrypointVLD
      VAProfileH264High               :	VAEntrypointEncSlice
      VAProfileVC1Simple              :	VAEntrypointVLD
      VAProfileVC1Main                :	VAEntrypointVLD
      VAProfileVC1Advanced            :	VAEntrypointVLD
      VAProfileNone                   :	VAEntrypointVideoProc

Last edited by Magbed (2014-08-24 13:12:19)

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#2 2014-08-24 09:48:25

Magbed
Member
Registered: 2013-06-02
Posts: 30

Re: [SOLVED] VA-API Steam in Home Streaming

I tried installing lib32-libva and lib32-libva-intel-driver from AUR, but they are out of date, steam requires libva-driver to be at least 1.3.2.

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#3 2014-08-24 13:12:01

Magbed
Member
Registered: 2013-06-02
Posts: 30

Re: [SOLVED] VA-API Steam in Home Streaming

Solved it. I had to install the 32 bit versions but since the ones in the AUR are out of date i had to manually modify the PKGBUILD to point to the latest version.
After that it was just a matter of symlinking to where steam wants to find the library

sudo ln -s /usr/lib32/dri/i965_drv_video.so /usr/lib/i386-linux-gnu/dri/i965_drv_video.so

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#4 2014-08-24 13:15:59

jaylittle
Member
Registered: 2013-01-16
Posts: 47

Re: [SOLVED] VA-API Steam in Home Streaming

I was just about to post the same exact thing.  Switching to vaapi decoding didn't seem to resolve any of my sound related issues with streaming though.  <sigh>

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#5 2014-08-25 02:09:46

headkase
Member
Registered: 2011-12-06
Posts: 1,977

Re: [SOLVED] VA-API Steam in Home Streaming

See: Here

Apparently Intel graphics do not support the "GL_NV_vdpau_interop extension" that is required for hardware decoding on the client.  I have done every single thing possible and I am still getting software decoding with an Ironlake Intel HD Graphics (first generation Core i5 650).

Enable -> Steam -> Settings -> In Home Streaming -> Advanced Client Options -> Display Performance Information.

When you launch a stream, press the option indicated in the bottom left of the screen to get detailed information and see if you really are being hardware accelerated or if it is just a placebo?

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#6 2014-08-25 20:30:56

headkase
Member
Registered: 2011-12-06
Posts: 1,977

Re: [SOLVED] VA-API Steam in Home Streaming

Adding some more information:

I updated the PKGBUILDs of both lib32-libva and lib32-libva-intel-driver and built and installed them successfully.  I followed the: VDPAU page and configured it properly, including setting the environment variable that tells the system to use the Intel backend.  I tried your symbolic link even though the same link is present in Steam's runtime within your ~/.local/Steam/.. folder.  Steam streaming still uses software decoding.  VDPAU is configured correctly on my system as other programs which use it work correctly with the above configuration I did.  "vainfo" and "vdpauinfo" indicate that it is correctly configured.

Like I said, I am using a first-generation Core i5 650.  That is "Intel HD Graphics" with no other suffix, otherwise known as "Ironlake" graphics.  I am using the official xf86-video-intel in the main repos and not the devel version in AUR.  The version of my Intel driver is "2.99.914-4".

Edit:
Output of "vainfo":

libva info: VA-API version 0.35.1
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_35
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.35 (libva 1.3.1)
vainfo: Driver version: Intel i965 driver for Intel(R) Ironlake Desktop - 1.3.2
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            :	VAEntrypointVLD
      VAProfileMPEG2Main              :	VAEntrypointVLD
      VAProfileH264ConstrainedBaseline:	VAEntrypointVLD
      VAProfileH264Main               :	VAEntrypointVLD
      VAProfileH264High               :	VAEntrypointVLD
      VAProfileNone                   :	VAEntrypointVideoProc

Output of "vdpauinfo":

display: :0.0   screen: 0
[VS] Software VDPAU backend library initialized
libva info: VA-API version 0.35.1
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_35
libva info: va_openDriver() returns 0
API version: 1
Information string: OpenGL/VAAPI/libswscale backend for VDPAU

Video surface:

name   width height types
-------------------------------------------
420     1920  1080  NV12 YV12 UYVY YUYV Y8U8V8A8 V8U8Y8A8 
422     1920  1080  NV12 YV12 UYVY YUYV Y8U8V8A8 V8U8Y8A8 
444     1920  1080  NV12 YV12 UYVY YUYV Y8U8V8A8 V8U8Y8A8 

Decoder capabilities:

name               level macbs width height
-------------------------------------------
H264_BASELINE        51 16384  2048  2048
H264_MAIN            51 16384  2048  2048
H264_HIGH            51 16384  2048  2048

Output surface:

name              width height nat types
----------------------------------------------------
B8G8R8A8            53    53    y  
R8G8B8A8         1863013872 1863013872    y  
R10G10B10A2      1863013872 1863013872    y  
B10G10R10A2      1863013872 1863013872    y  
A8               1863013872 1863013872    y  

Bitmap surface:

name              width height
------------------------------
B8G8R8A8          8192  8192
R8G8B8A8          8192  8192
R10G10B10A2       8192  8192
B10G10R10A2       8192  8192
A8                8192  8192

Video mixer:

feature name                    sup
------------------------------------
DEINTERLACE_TEMPORAL             -
DEINTERLACE_TEMPORAL_SPATIAL     -
INVERSE_TELECINE                 -
NOISE_REDUCTION                  -
SHARPNESS                        -
LUMA_KEY                         -
HIGH QUALITY SCALING - L1        -
HIGH QUALITY SCALING - L2        -
HIGH QUALITY SCALING - L3        -
HIGH QUALITY SCALING - L4        -
HIGH QUALITY SCALING - L5        -
HIGH QUALITY SCALING - L6        -
HIGH QUALITY SCALING - L7        -
HIGH QUALITY SCALING - L8        -
HIGH QUALITY SCALING - L9        -

parameter name                  sup      min      max
-----------------------------------------------------
VIDEO_SURFACE_WIDTH              -  
VIDEO_SURFACE_HEIGHT             -  
CHROMA_TYPE                      -  
LAYERS                           -  

attribute name                  sup      min      max
-----------------------------------------------------
BACKGROUND_COLOR                 -  
CSC_MATRIX                       -  
NOISE_REDUCTION_LEVEL            -  
SHARPNESS_LEVEL                  -  
LUMA_KEY_MIN_LUMA                -  
LUMA_KEY_MAX_LUMA                -

Last edited by headkase (2014-08-25 22:28:26)

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#7 2014-08-27 10:16:40

Magbed
Member
Registered: 2013-06-02
Posts: 30

Re: [SOLVED] VA-API Steam in Home Streaming

I think you are a bit confused about VA-API and VDPAU they are 2 different things, afaik intel driver doesnt implement VDPAU. As the  title of the post says ive got VA-API hw decoding working on steam, the debug overlay says so too, not VDPAU.

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#8 2014-08-27 13:06:15

headkase
Member
Registered: 2011-12-06
Posts: 1,977

Re: [SOLVED] VA-API Steam in Home Streaming

Thank you for the reply.  This thread no longer applies for myself though, I popped in an Nvidia card in my machine so now I'm on a different path.  Thanks again though!

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