Hardware decoding not working with mpv 0.39.1 on tumbleweed slowroll

[Svyatko]

H.264 hardware decoding works poroperly only after installing codecs from Packman or VLC

Rather obvious, but nevertheless… Using Intel iGPU + Intel VAAPI driver. Freshly installed OS: H.264 (AVC) doesn’t work - as expected. After installing Intel VAAPI driver: can play some videos, but with extra CPU load, cannot play some others (depends on sub-formats?). Installing codecs from VLC repo solved this issue. Some months ago user complains about Ivy Bridge CPU which cannot play videos - maybe that case.

Ubuntu has needed codecs installed by default.

For openSUSE you need to install proprietary codecs from Packman or Videolan:

https://en.opensuse.org/SDB:Installing_codecs_from_Packman_repositories

There is no need to install intel-media-driver and intel-vaapi-driver both.
Intel-media-driver is newer and preferable:

GitHub - intel/media-driver: Intel Graphics Media Driver to support hardware...

You may need intel-vaapi-driver only to get semi-hw VP9 decoding with Intel hybrid driver, but it maybe doesn’t work.