Update app.py

app.py

@@ -84,8 +84,10 @@ DEFAULT_FRAME_RATE = 24.0
 
 # Resolution presets: (width, height)
 RESOLUTIONS = {
-    "high": {"16:9": (1536, 1024), "9:16": (1024, 1536), "1:1": (1024, 1024)},
-    "low": {"16:9": (768, 512), "9:16": (512, 768), "1:1": (768, 768)},
+    "low":  {"16:9": (768, 512), "9:16": (512, 768), "1:1": (768, 768),
+             "4:3": (768, 576), "3:4": (576, 768), "21:9": (768, 384)},
+    "high": {"16:9": (1536, 1024), "9:16": (1024, 1536), "1:1": (1024, 1024),
+             "4:3": (1536, 1152), "3:4": (1152, 1536), "21:9": (1536, 768)},
 }