48 lines
753 B
Plaintext
48 lines
753 B
Plaintext
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#!/bin/sh
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BACKGROUND="#0A0A0A"
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THUMBSIZE=64
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umask 077
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case "$#" in
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(2)
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;;
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(*)
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printf "usage: %s file\n" "$0" >&2
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exit 1
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;;
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esac
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case "$2" in
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(*/*)
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mkdir -p "${2%/*}"
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;;
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(*)
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;;
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esac
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case "${1##*.}" in
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png|jpg|jpeg|gif|xpm|xbm|ppm)
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convert "${1}[0]" -background "$BACKGROUND" -flatten \
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-define filename:literal=true -format ppm \
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-thumbnail "${THUMBSIZE}x${THUMBSIZE}" \
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"${2}"
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;;
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webm|mp4|mkv|ogv)
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ffmpegthumbnailer -c png -i "${1}" -o - -s "${THUMBSIZE}" \
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| convert - -define filename:literal=true -format ppm \
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"${2}"
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;;
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svg)
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rsvg-convert -h "${THUMBSIZE}" "${1}" \
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| convert - -format ppm "${2}"
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;;
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pdf)
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pdftoppm -f 1 -l 1 -scale-to "${THUMBSIZE}" -singlefile \
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"${1}" "${2%.ppm}"
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;;
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*)
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exit 1
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;;
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esac 2>/dev/null
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