From c067ed87f93a352237b76616724dfa72535e2bed Mon Sep 17 00:00:00 2001
From: gutmet <me.git@gutmet.org>
Date: Thu, 30 Jun 2022 09:45:53 +0200
Subject: [PATCH] script to split a single video into multiple shorter videos

---
 splitAndShrinkVideo | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100755 splitAndShrinkVideo

diff --git a/splitAndShrinkVideo b/splitAndShrinkVideo
new file mode 100755
index 0000000..2336604
--- /dev/null
+++ b/splitAndShrinkVideo
@@ -0,0 +1,35 @@
+#!/bin/bash
+
+set -eu
+
+if [ "$#" -ne 2 ]; then
+  echo "USAGE: $0 FILE SPLIT_DURATION_SECONDS"
+  exit 1
+fi
+
+fullpath="$1"
+source fileextensions
+
+outprefix="$dir/$filename"
+outext=".mp4"
+
+splitduration="$2"
+probecmd="ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1"
+
+duration=`$probecmd $fullpath`
+n=`echo $duration $splitduration | awk '{print int($1/$2)+1}'`
+
+i=0
+while [ $i -le $n ]; do
+  from=$(($i*$splitduration))
+  to=$(($from+$splitduration))
+  outfile="$outprefix$i$outext"
+  ffmpeg -y -ss "$from" -to "$to" -i "$fullpath" -s ega "$outfile"
+  i=$(($i+1))
+done
+
+lastduration=`$probecmd $outfile`
+
+if [ "$lastduration" == "0.000000" ]; then
+  rm "$outfile"
+fi