Fix camera proxy with sole image quality settings (#141676)

homeassistant/components/proxy/camera.py

@@ -104,6 +104,15 @@ def _resize_image(image, opts):
     new_width = opts.max_width
     (old_width, old_height) = img.size
     old_size = len(image)
+
+    # If no max_width specified, only apply quality changes if requested
+    if new_width is None:
+        if opts.quality is None:
+            return image
+        imgbuf = io.BytesIO()
+        img.save(imgbuf, "JPEG", optimize=True, quality=quality)
+        return imgbuf.getvalue()
+
     if old_width <= new_width:
         if opts.quality is None:
             _LOGGER.debug("Image is smaller-than/equal-to requested width")