[Mesa-dev] [PATCH 3/4] drirc: Initial blacklist for adaptive sync

[Michel Dänzer]

On 2018-09-13 12:01 p.m., Eero Tamminen wrote:
> On 11.09.2018 19:24, Nicholas Kazlauskas wrote:
>> Applications that don't present at a predictable rate (ie. not games)
>> shouldn't have adapative sync enabled. This list covers some of the
>> common desktop compositors and some web browsers.
> 
> Why videos (in video players like vlc & mpv) wouldn't have predictable
> rate?
> 
> Them being able to use VRR to get refresh rate that exactly matches the
> video's frame rate (24, 25, 30, 50 etc), or some multiple of it, should
> look much better than player being forced to interpolate to something
> else...

One issue is that there's no EGL / GLX API yet for this.

VDPAU has time-based presentation, but that isn't fully plumbed through
yet either but internally converted to a target display refresh counter.

Therefore, video players are currently de facto relying on fixed refresh
rate.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer