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85 lines
2.2 KiB
85 lines
2.2 KiB
5 years ago
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#!/usr/bin/env bash
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# Largely taken from here: https://gitlab.com/uoou/dotfiles/-/blob/master/stow/bin/home/drew/bin/movwp_halftone
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# However, changed to have options and to remove credits (hopefully)
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output="/tmp/frame.png"
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file=""
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EFFECT="FALSE"
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while [ -n "$1" ]; do
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case "$1" in
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"-o"|"--output")
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output="$2"
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shift
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shift
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;;
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"--effect")
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EFFECT="TRUE"
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shift
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;;
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*)
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if [ -z "$file" ]; then
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file="$1"
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shift
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else
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echo "Too many arguments"
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exit 1
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fi
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;;
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esac
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done
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if [ -z "$file" ]; then
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echo "You need to specify a file"
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exit 1
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fi
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if [ ! -f "$file" ]; then
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echo "$file is not a file"
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exit 1
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fi
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output="${output%.png}.png"
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# Uses ffmpeg to get the duration
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duration=$(ffmpeg -i "$file" 2>&1 | grep Duration | awk '{print $2}' | tr -d ,)
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seconds=$(echo "$duration" | awk -F: '{ print ($1 * 3600) + ($2 * 60) + $3 }')
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seconds=${seconds%.*}
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if [ "$seconds" -le 0 ];then
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echo "Doesn't appear to be a video"
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exit 1
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fi
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if [[ "$seconds" -gt $(( 50 * 60 )) ]]; then
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# If the video is more than 50 minutes log, assume it is a film and ignore 5 minutes at the end (credits)
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seconds="$(($seconds - 300 ))"
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elif [[ "$seconds" -gt $(( 10 * 60 )) ]]; then
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# If the video is more than 10 minutes log, assume it is a tv episode and ignore 1 minute at the end (credits)
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seconds="$(($seconds - 60 ))"
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fi
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randpoint=$((1 + RANDOM % "$seconds"))
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if [ "$EFFECT" == "TRUE" ]; then
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echo "I lastly get here"
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ffmpeg -ss "$randpoint" -i "$file" -vf hue=h=310:s=2.8:b=3,eq=contrast=4 -vframes 1 "$output" -y >> /dev/null 2>&1 &&
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convert "$output" \
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-set option:distort:viewport '%wx%h+0+0' \
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-colorspace CMYK -separate null: \
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\( -size 3x3 xc: \( +clone -negate \) \
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+append \( +clone -negate \) -append \) \
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-virtual-pixel tile -filter gaussian \
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\( +clone -distort SRT 60 \) +swap \
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\( +clone -distort SRT 30 \) +swap \
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\( +clone -distort SRT 45 \) +swap \
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\( +clone -fill black -colorize 100 -distort SRT 0 \) +swap +delete \
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-compose Overlay -layers composite \
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-set colorspace CMYK -combine -colorspace RGB \
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"$output" &&
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convert "$output" \
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-virtual-pixel edge -channel M -fx "p[-5,-1]" \
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"$output"
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else
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ffmpeg -ss "$randpoint" -i "$file" -vframes 1 "$output" -y >> /dev/null 2>&1
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fi
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