try to reduce how often quality swings cause scaling changes

Xpra-org · Jul 15, 2024 · 7951a69 · 7951a69
1 parent 7a16475
commit 7951a69
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diff --git a/xpra/server/window/video_scoring.py b/xpra/server/window/video_scoring.py
@@ -64,7 +64,7 @@ def get_speed_score(csc_format, csc_spec, encoder_spec, scaling,
     #the encoder speed matters less
     #when the target speed is low:
     ts = min(100, max(1, target_speed))
-    sscore = (50-ts//2) + speed*100//(100+ts)
+    sscore = (50-ts//2) + speed*100//(200 + ts)
     if csc_spec:
         #if there is a csc step,
         #then we lose some performance,

diff --git a/xpra/server/window/window_video_source.py b/xpra/server/window/window_video_source.py
@@ -1606,7 +1606,7 @@ def mrs(v=(1, 1), info="using minimum required scaling"):
                     #high bit depth is normally used for high quality
                     target *= 10
                 #high quality means less scaling:
-                target = target * (10+max(0, q-video*30))**2 // 50**2
+                target = target * (100+max(0, q-video*30))**2 // 200**2
                 #high speed means more scaling:
                 target = target * 60**2 // (s+20)**2
                 sscaling = {}