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