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1 #!/bin/bash
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2
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3 # Fast GNOME thumbnailer for JPEG files that uses the embedded EXIF thumbnail
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4 # from the source file, if present. Greatly speeds up thumbnail generation when
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5 # browsing a folder of images shared over a network.
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6 #
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7 # Usage:
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8 # jpeg-exif-thumbnailer [size] [source] [destination]
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9
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10 set -e
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11
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12 # Transform the input file URI (for example, file://... or smb://...) into its
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13 # locally mounted path.
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14 input_path=$(gio info "$2" | grep "^local path:" | cut -d ' ' -f 3-)
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15
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16 # Use exiftool to extract the embedded preview image.
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17 exiftool -a -b -W! "$3" -preview:all "$input_path"
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18
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19 if [ -s "$3" ]; then
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20 # If the extraction succeeded, convert the extracted image to the requested
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21 # format based on the requested file extension, and resize it to the
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22 # requested size. Since Nautilus requires PNG files, the mogrify command
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23 # is required even if -resize is not specified.
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24 mogrify -resize $1x$1 "$3"
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25 else
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26 # If the extraction failed, fall back to the default system thumbnailer.
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27 /usr/bin/gdk-pixbuf-thumbnailer -s "$1" "$2" "$3"
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28 fi
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