42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
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"""HEIC/HEIF thumbnailer for the freedesktop (GNOME/GTK) thumbnail system.
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Decodes a HEIC/HEIF file's SDR base image with pillow-heif (which bundles a
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modern libheif) and writes a PNG thumbnail. Used on Linux systems whose
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*system* libheif is too old to thumbnail iPhone HDR HEICs; installed under
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/usr/local by scripts/install_heic_thumbnailer.sh so it is reachable inside
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GNOME's bwrap thumbnailer sandbox (which binds /usr but not $HOME).
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Invoked by the thumbnail system as: ... -s SIZE INPUT OUTPUT
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"""
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import sys
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def main(argv):
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args = argv[1:]
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size, rest = 256, []
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i = 0
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while i < len(args):
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if args[i] == "-s":
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size = int(args[i + 1]); i += 2
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else:
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rest.append(args[i]); i += 1
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if len(rest) < 2:
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sys.stderr.write("usage: heic_thumbnailer.py -s SIZE INPUT OUTPUT\n")
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return 2
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inp, outp = rest[0], rest[1]
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import pillow_heif
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pillow_heif.register_heif_opener()
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from PIL import Image
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im = Image.open(inp)
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im.load()
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im = im.convert("RGB")
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im.thumbnail((size, size), Image.LANCZOS)
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im.save(outp, "PNG")
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return 0
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if __name__ == "__main__":
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sys.exit(main(sys.argv))
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