55 lines
1.5 KiB
Python
55 lines
1.5 KiB
Python
from io import BytesIO
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from logging import getLogger
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from typing import List, Optional
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import requests
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from PIL import Image
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from ..params import ImageParams, StageParams
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from ..server import ServerContext
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from ..worker import ProgressCallback, WorkerContext
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from .base import BaseStage
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from .result import ImageMetadata, StageResult
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logger = getLogger(__name__)
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class SourceURLStage(BaseStage):
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def run(
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self,
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_worker: WorkerContext,
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_server: ServerContext,
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_stage: StageParams,
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_params: ImageParams,
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sources: StageResult,
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*,
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source_urls: List[str],
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stage_source: Optional[Image.Image] = None,
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callback: Optional[ProgressCallback] = None,
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**kwargs,
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) -> StageResult:
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logger.info("loading image from URL source")
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if len(sources) > 0:
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logger.info(
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"source images were passed to a source stage, new images will be appended"
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)
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outputs = sources.as_images()
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for url in source_urls:
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response = requests.get(url)
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output = Image.open(BytesIO(response.content))
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logger.info("final output image size: %sx%s", output.width, output.height)
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outputs.append(output)
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metadata = [ImageMetadata.unknown_image()] * len(outputs)
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return StageResult(images=outputs, metadata=metadata)
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def outputs(
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self,
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params: ImageParams,
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sources: int,
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) -> int:
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return sources + 1
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