Use current frame for transparency detection

uploadcare · Sep 16, 2024 · 31d36e6 · 31d36e6
1 parent d1f40a9
commit 31d36e6
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/Tests/test_file_webp.py b/Tests/test_file_webp.py
@@ -208,7 +208,7 @@ def test_invalid_background(
 
     def test_background_from_gif(self, tmp_path: Path) -> None:
         out_webp = tmp_path / "temp.webp"
-        
+
         # Save L mode GIF with background
         with Image.open("Tests/images/no_palette_with_background.gif") as im:
             im.save(out_webp, save_all=True)

diff --git a/src/PIL/WebPImagePlugin.py b/src/PIL/WebPImagePlugin.py
@@ -243,7 +243,9 @@ def _save_all(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
                 # Make sure image mode is supported
                 frame = ims
                 if frame.mode not in ("RGBX", "RGBA", "RGB"):
-                    frame = frame.convert("RGBA" if im.has_transparency_data else "RGB")
+                    frame = frame.convert(
+                        "RGBA" if frame.has_transparency_data else "RGB"
+                    )
 
                 # Append the frame to the animation encoder
                 enc.add(