mirror of
https://github.com/simon987/Simple-Incremental-Search-Tool.git
synced 2025-04-16 08:46:49 +00:00
77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
from PIL import Image
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import os
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from parsing import ContentMimeGuesser, ExtensionMimeGuesser
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from multiprocessing import Value
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import ffmpeg
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class ThumbnailGenerator:
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def __init__(self, size, quality=85, color="FF00FF"):
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self.size = (size, size)
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self.quality = quality
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self.color = tuple(bytes.fromhex(color))
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def generate(self, path, dest_path, mime):
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if mime is None:
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return
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if mime.startswith("image"):
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try:
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self.generate_image(path, dest_path)
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except OSError:
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print("Not an image " + path)
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elif mime.startswith("video"):
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try:
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(ffmpeg.
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input(path)
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.output("tmp", vframes=1, f="image2", loglevel="error")
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.run()
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)
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self.generate_image("tmp", dest_path)
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os.remove("tmp")
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except Exception as e:
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print("Couldn't make thumbnail for " + path)
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def generate_all(self, docs, dest_path, counter: Value=None):
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os.makedirs(dest_path, exist_ok=True)
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for doc in docs:
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extension = "" if doc["_source"]["extension"] == "" else "." + doc["_source"]["extension"]
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full_path = os.path.join(doc["_source"]["path"], doc["_source"]["name"] + extension)
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if os.path.isfile(full_path) and "mime" in doc["_source"]:
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self.generate(full_path, os.path.join(dest_path, doc["_id"]), doc["_source"]["mime"])
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if counter is not None:
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counter.value += 1
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def generate_image(self, path, dest_path):
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with open(path, "rb") as image_file:
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with Image.open(image_file) as image:
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# https://stackoverflow.com/questions/43978819
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if image.mode == "I;16":
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image.mode = "I"
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image.point(lambda i: i * (1. / 256)).convert('L')
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image.thumbnail(self.size, Image.BICUBIC)
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canvas = Image.new("RGB", image.size, self.color)
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if image.mode in ('RGBA', 'LA') or (image.mode == 'P' and 'transparency' in image.info):
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try:
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canvas.paste(image, mask=image.split()[-1])
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except ValueError:
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canvas.paste(image)
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else:
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canvas.paste(image)
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canvas.save(dest_path, "JPEG", quality=self.quality, optimize=True)
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canvas.close()
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