On 6/25/19 4:57 PM, Adam Carter wrote:
My skylake (i3-6100U) system drops frames when watching x265 movies (in
mpv and kodi), with all cores at 100% CPU. I've re-run through
https://wiki.gentoo.org/wiki/Intel and tried changing from the intel
driver to modsetting, and it appears to use less CPU for x264 at least.
Still maxed out for x265 so I cant tell if there's a difference for that.
I'm going through the USE flags for kodi, mpv and ffmpeg, which flags
are the most important? Is there some way to run a simple movie playback
benchmark to assess the impact of changes?
Current settings;
What about USE flags for mesa and libva?
This wouldn't happen to be a 10-bit encoded x265, would it? If it is,
10-bit hardware decoding is only supported in Kaby Lake or newer (this
could explain it decoding in software/on CPU instead of GPU.)
I also had to boot with UEFI or no hardware decoding happened at all.
Mine was old enough to give you a choice but video performance suffered
in BIOS boot mode.
When I got my celeron-based NUC I discovered that just because the CPU
has some hardware offloading doesn't mean software will use it. :(
Dan
