Add some scripts used in post-production

scripts/README.md

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+
+# Requirements
+
+- [ffmpeg](https://johnvansickle.com/ffmpeg/releases/ffmpeg-release-amd64-static.tar.xz)
+
+# `audio.sh`
+
+Normalise audio
+
+```
+Usage: ./audio.sh videofile
+```
+
+# `cutgui.sh`
+
+Download and run LosslessCut in a temp directory
+
+```
+Usage: ./cutgui.sh
+```

scripts/audio.sh

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+#!/bin/sh
+
+set -e
+
+mode=loudnorm
+
+file="$1"
+outfile="${file%.*}.audiotweaked.${file##*.}"
+
+if [[ -z "$file" ]]; then
+	echo "Usage: $0 videofile"
+	exit 1
+fi
+
+if [[ "$mode" == "mean" ]]; then
+	# A simple way to detect mean_volume and use it to tweak the entire file
+	ffmpeg -i "$file" -filter:a volumedetect -f null /dev/null
+	read -p "Enter mean_volume: " volume
+	ffmpeg -i "$file" -filter:a "volume=$volume" -af "highpass=f=200, lowpass=f=3000" "$outfile"
+elif [[ "$mode" == "loudnorm" ]]; then
+	# Use the recommended loudnorm filter
+	ffmpeg -i "$file" -vcodec copy -af "loudnorm" "$outfile"
+else
+	echo "Unknown mode"
+	exit 1
+fi

scripts/cutgui.sh

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+#!/bin/sh
+
+set -e
+
+temp=/tmp/lossless-cut
+download=https://github.com/mifi/lossless-cut/releases/download/v3.17.4/LosslessCut-linux.tar.bz2
+
+mkdir -p "$temp"
+
+if [[ ! -f "$temp/lossless-cut" ]]; then
+	echo "lossless-cut not found in $temp"
+	echo "Downloading lossless-cut..."
+	wget -nv --show-progress "$download" -O "$temp/archive.tar.bz2"
+	echo "Extracting lossless-cut..."
+	tar -xf "$temp/archive.tar.bz2" -C "$temp" --strip-components=1
+	echo "Successfully obtained lossless-cut"
+fi
+
+"$temp/lossless-cut" "$@"
+
+
+