added avif support

docs/installation.rst

@@ -12,6 +12,7 @@ sorl-thumbnail::
 Depending of the chosen image backend, you may also use one of::
 
     pip install sorl-thumbnail[pil]
+    pip install sorl-thumbnail[pil, avif]
     pip install sorl-thumbnail[wand]
     pip install sorl-thumbnail[pgmagick]
 

docs/reference/settings.rst

@@ -281,7 +281,7 @@ The generated thumbnails filename prefix.
 
 - Default: ``'JPEG'``
 
-Default image format, supported formats are: ``'JPEG'``, ``'PNG'``. This also implicitly
+Default image format, supported formats are: ``'JPEG'``, ``'PNG'``, ``'GIF'``, ``'WEBP'``, ``'AVIF'``. This also implicitly
 sets the filename extension. This can be overridden by individual options.
 
 ``THUMBNAIL_PRESERVE_FORMAT``
@@ -358,7 +358,7 @@ missing input source.
 This is the generated thumbnail whensource of the presented thumbnail. Width and
 Height is passed to the string for formatting.  Other options are for example:
 
-- ``https://via.placeholder.com/%(width)sx%(height)s
+- ``https://via.placeholder.com/%(width)sx%(height)s``
 - ``http://placekitten.com/%(width)s/%(height)s`` 
 
 

docs/requirements.rst

@@ -73,6 +73,10 @@ want to see the following::
 
     --- JPEG support available
     --- ZLIB (PNG/ZIP) support available
+
+to activate avif support install the plugin::
+
+    pip install sorl-thumbnail[avif, pil]
 
 pgmagick installation
 ---------------------

docs/template.rst

@@ -65,6 +65,23 @@ these things out::
             else:
                 self.storage = default_storage
 
+Format
+------
+
+sorl-thumbnail supports these formats:
+
+#. jpg, jpeg
+#. png
+#. gif
+#. webp
+#. avif  (requires pillow and pillow-avif-plugin)
+
+to use different format for your images set this variable in your settings.
+
+.. code-block:: python
+
+    THUMBNAIL_FORMAT = 'JPEG'
+
 Geometry
 --------
 

pyproject.toml

@@ -44,6 +44,7 @@ Repository = "https://github.com/jazzband/sorl-thumbnail"
 pgmagick = ["pgmagick"]
 pil = ["pillow"]
 wand = ["wand"]
+avif = ["pillow-avif-plugin"]
 
 [tool.coverage.run]
  source = ["sorl"]

sorl/thumbnail/base.py

@@ -16,6 +16,7 @@
     'PNG': 'png',
     'GIF': 'gif',
     'WEBP': 'webp',
+    'AVIF': 'avif',
 }
 
 
@@ -57,6 +58,8 @@ def _get_format(self, source):
             return 'GIF'
         elif file_extension == '.webp':
             return 'WEBP'
+        elif file_extension == '.avif':
+            return 'AVIF'
         else:
             from django.conf import settings
 

sorl/thumbnail/engines/pil_engine.py

@@ -9,6 +9,10 @@
     import ImageDraw
     import ImageFile
     import ImageMode
+try:
+    import pillow_avif  # noqa: F401
+except ImportError:
+    pass
 
 if hasattr(Image, 'Resampling'):
     ANTIALIAS = Image.Resampling.LANCZOS

tests/thumbnail_tests/test_backends.py

@@ -56,6 +56,7 @@ def test_with_various_formats(self):
         self.assertEqual(self.backend._get_format(FakeFile('foo.jpeg')), 'JPEG')
         self.assertEqual(self.backend._get_format(FakeFile('foo.png')), 'PNG')
         self.assertEqual(self.backend._get_format(FakeFile('foo.gif')), 'GIF')
+        self.assertEqual(self.backend._get_format(FakeFile('foo.avif')), 'AVIF')
 
     def test_double_extension(self):
         self.assertEqual(self.backend._get_format(FakeFile('foo.ext.jpg')), 'JPEG')

tox.ini

@@ -31,6 +31,7 @@ envlist =
 deps =
   coverage[toml]
   pillow
+  pillow-avif-plugin
   redis: redis
   dynamodb: boto
   pgmagick: pgmagick