Unclear how to compile Handbrake with QSV support

[naatje80]

Description of the problem

I followed various tutorials on how to build Hanbrake with QSV support. The intel media SDK is working. Both the vainfo displays the my CPU is supported (Kaby lake) as well as the included demo's seem to be working correctly. It also unclear to me, how to "tell" Hanbrake, either during compilation or runtime, where to look for the intel media sdk. The often used MFX_HOME does not seem to do anything. At first, during an strace I noticed it tries to look for files in: /opt/intel/mediasdk, but a later rebuild did not use that path. So I'm also wondering how Handbrake was able at first to determine the path: /opt/intel/mediasdk. Adding the library paths to the LD_LIBRARY_PATH also did not help, the strace output indeed revealed that the various libs could be found, but Handbrake keeps reporting that Intel QuickSync is not supported. It is still unclear what is still missing.

During my last attempt, I followed the build instructions in: fr.handbrake.plugin.IntelMediaSDK.json (instead I used the prefix /opt/intel/mediasdk), but still no luck. avinfo and demo's are working, but Handbrake keeps reporting that Intel QuickSync is not supported.

Also the LIBVA_DRIVER_NAME and LIBVA_DRIVERS_PATH do not seem to do anything

Thank you in advance for your help

HandBrake version (e.g., 1.0.0)

Hanbrake 1.2.2

Operating system and version (e.g., Ubuntu 18.04 LTS, macOS 10.14 Mojave, Windows 10 1809)

CentOS Linux release 7.7.1908 (Core)

Error message text or screenshot

Intel Quick Sync Video support: no

HandBrake Activity Log (see https://handbrake.fr/docs/en/latest/help/activity-log.html)

Will add this later on...

[jstebbins]

This complexity is the reason I created the mediasdk flatpak plugin that is available with the nightly builds https://handbrake.fr/nightly.php. Does the flatpak work on CentOS 7?

It's been a while since I worked on this. So I'm starting to forget details. But qsv is accessed through libva. libva loads the intel-media-driver which is usually installed to /usr/lib64/dri/iHD_drv_video.so. So you need to make sure libva knows where to find this driver.

[naatje80]

@jstebbins Thank you for your quick feedback. Your flatpak indeed worked correctly, so it helped me to further debug my issue by comparing it with my build. I was able to solve the issue, by switching to the latest build, instead of using the stable 1.2.2 version. So I think, either the libva/msdk was to new for the 1.2.2, or there was some improvement done for better detection. But thank you again for your help, I now finally have QSV working with Handbrake (and already glad with performance gain :) )