Initial commit

env/lib/python3.10/site-packages/willow/optimizers/cwebp.py

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+from typing import ClassVar, List
+
+from .base import OptimizerBase
+
+__all__ = ["Cwebp"]
+
+
+class Cwebp(OptimizerBase):
+    """https://developers.google.com/speed/webp/docs/cwebp"""
+
+    library_name: ClassVar[str] = "cwebp"
+    image_format: ClassVar[str] = "webp"
+
+    @classmethod
+    def get_check_library_arguments(cls) -> List[str]:
+        # running just cwebp gives basic infor and returns a zero exit code
+        return []
+
+    @classmethod
+    def get_command_arguments(
+        cls, file_path: str, progressive: bool = False
+    ) -> List[str]:
+        return [
+            "-m",
+            "6",  # inspect all encoding possibilities for best file size
+            "-mt",  # use multithreading if possible
+            "-pass",
+            "10",  # max number of passes
+            "-q",
+            "75",  # compression factor. 100 produces the highest quality.
+            file_path,
+            "-o",
+            file_path,
+        ]