FEAT: Support for AVIF image format (#1048)

imageio/config/extensions.py

@@ -1856,7 +1856,14 @@ def reset(self):
         priority=["tifffile"],
     ),
     FileExtension(
-        name="High Efficiency Image File Format", extension=".heic", priority=["pillow"]
+        name="High Efficiency Image File Format",
+        extension=".heic",
+        priority=["pillow"],
+    ),
+    FileExtension(
+        name="AV1 Image File Format",
+        extension=".avif",
+        priority=["pillow"],
     ),
 ]
 extension_list.sort(key=lambda x: x.extension)

imageio/plugins/pillow.py

@@ -83,6 +83,14 @@ def __init__(self, request: Request) -> None:
         else:
             register_heif_opener()
 
+        # Register AVIF opener for Pillow
+        try:
+            from pillow_heif import register_avif_opener
+        except ImportError:
+            pass
+        else:
+            register_avif_opener()
+
         self._image: Image = None
         self.images_to_write = []
 

setup.py

@@ -99,7 +99,7 @@
     "swf": [],
     "tifffile": ["tifffile"],
     "pyav": ["av"],
-    "heif": ["pillow-heif"],
+    "pillow-heif": ["pillow-heif"],
 }
 
 cpython_only_plugins = {

tests/test_pillow.py

@@ -712,3 +712,10 @@ def test_heif_remote():
     url = "http://github.com/tigranbs/test-heic-images/raw/master/image4.heic"
     im = iio.imread(url, plugin="pillow")
     assert im.shape == (476, 700, 4)
+
+
+@pytest.mark.needs_internet
+def test_avif_remote():
+    url = "https://github.com/link-u/avif-sample-images/raw/master/fox.profile0.10bpc.yuv420.avif"
+    im = iio.imread(url, plugin="pillow")
+    assert im.shape == (800, 1204, 3)