mpv: Refactor into more simple config

Using some of the advice from here: <https://kenhv.com/blog/setting-up-mpv>,
we can simplify the configuration a little.

multimedia/.config/mpv/mpv.conf

@@ -9,9 +9,17 @@
 fullscreen=no
 # if playing the last file in e.g. a playlist, simply pause after finishing
 keep-open=yes
+# restart where we left off
+save-position-on-quit=yes
+autofit-larger=80%x80%
 # allow remote operation through ipc, see https://mpv.io/manual/stable/#json-ipc
 input-ipc-server=/tmp/mpv-socket
 
+# video decode options
+vo=gpu-next
+gpu-api=auto
+hwdec=auto-safe
+
 # display a little seek bar in term
 term-osd-bar=yes
 # colorful term output
@@ -73,24 +81,12 @@ sub-spacing=0.5
 
 ### Audio
 
-volume=80
 volume-max=150
 # find audio files even if slightly mismatched
 audio-file-auto=fuzzy
 # playing at different speed will pitch-correct
 audio-pitch-correction=yes
 
-### Video
-
-hwdec=auto
-opengl-early-flush=auto
-opengl-pbo=no
-# ever so slightly up saturation
-saturation=12
-# interpolation options, will take some more cpu
-interpolation=yes
-video-sync=display-resample
-
 ### Cache
 
 # use cache if it seems like a networked connection
@@ -137,17 +133,13 @@ loop-file=yes
 ytdl-raw-options=playlist-reverse=
 
 [lowquality]
-scale=bilinear
-cscale=ewa_lanczossharp
 interpolation=no
 video-sync=audio
 
 [highquality]
-scale=ewa_lanczossharp
-cscale=ewa_lanczossharp
-video-sync=display-resample
 interpolation=yes
 tscale=oversample
+video-sync=display-resample
 
 # default to hq
 profile=highquality