This shader https://gist.github.com/igv/a015fc885d5c22e6891820ad=
89555637 (5th
of September revision, crossbilateral only) used to crash the radeon driver=
and
bring the whole system down, whilst the previous version did not.=20
After this was magically fixed, the only issue has been extremely low
performance, visible through low render times and a few dropped frames.
Test case: https:=
//www.youtube.com/watch?v=3D6v2L2UGZJAM (it is important that
you use my settings for the 1080p version to be selected)
Using any revision of this shader after the introduction of the 5th of
September commit, on mpv, I get render times in the order of 31000 and lots=
of
dropped, mistimed frames (as per lua-stats). Using the version immediately
before this one (
https://gist.github.com/igv/a015fc88=
5d5c22e6891820ad89555637/15a6623d61b4030ed4d8dce637e509b7433f39c2
) I get 6700 on the same video.
CPU+GPU: i5-4690, R9-280x
mpv, ffmpeg, mesa, llvm and xf86-video-ati are all git.
SSIMsuperres can be found here
ht=
tps://gist.github.com/igv/2364ffa6e81540f29cb7ab4c9bc05b6b
Relevant bits of mpv.conf for reproduction purposes:
profile=3Dopengl-hq
opengl-pbo=3Dyes
# Scaling
scale=3Dewa_lanczossharp
opengl-shaders=3D"~~/shaders/ssimsuperres.glsl,~~/shaders/crossbilater=
al.glsl"
#cscale
# Interpolation
tscale=3Dsinc
interpolation=3Dyes
video-sync=3Ddisplay-resample
tscale-clamp=3Dyes
# Misc
temporal-dither=3Dyes
dither-depth=3D8
deband-iterations=3D2
deband-range=3D12
blend-subtitles=3Dno
hwdec=3Dno
framedrop=3Dvo
# Web media
ytdl=3Dyes
ytdl-format=3D0/(bestvideo[vcodec=3Dvp9]/bestvideo[height>720]/bestvideo=
[fps>30])[tbr<13000]+(bestaudio[acodec=3Dopus]/bestaudio)/best