Add an ffmpeg script to normalize video

scripts/normalize-video.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# This script takes an input video path (relative is fine) and converts it to H.264 MP4 format with AAC audio,
+# downscaling to 1200-pixel max-width where necessary. Converted files are written to ${filename}-${video_codec}.${extension}.
+# Originals are left not modified. Requires ffmpeg: https://ffmpeg.org/download.html
+
+filename=$(basename $1)
+path=$(dirname $1)
+video_codec="h264"
+audio_codec="aac"
+max_width="1200"
+extension="mp4"
+
+ffmpeg -i "${1}" -vcodec "$video_codec" -acodec "$audio_codec" -crf 18 -vf "scale=${max_width}:-1" "${path}/$(echo ${filename%.*})-${video_codec}.${extension}"