From 374e1b1fa2f89d98242591b2978a10fb6e82cbde Mon Sep 17 00:00:00 2001
From: Jan Jastrow <jan@jastrow.me>
Date: Wed, 19 Jan 2022 13:51:34 +0100
Subject: [PATCH] Changed 120 to non-system variable

---
 vithumbs.sh | 42 +++++++++++++++++++++---------------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/vithumbs.sh b/vithumbs.sh
index 993d718..5c1157f 100644
--- a/vithumbs.sh
+++ b/vithumbs.sh
@@ -1,15 +1,15 @@
 #!/bin/bash
 
 if [ -z "$1" ]; then
-	echo "usage: ./vithumbs.sh INPUT [COLUMNS=5] [ROWS=5] [SIZE=1600]"
+	echo "usage: ./vithumbs.sh INPUT [COLS=5] [ROWS=5] [SIZE=1600]"
 	exit
 fi
 
 # Define variables
 INPUT=$1
-COLUMNS=$2
-if [ -z "$COLUMNS" ]; then
-	COLUMNS=5
+COLS=$2
+if [ -z "$COLS" ]; then
+	COLS=5
 fi
 ROWS=$3
 if [ -z "$ROWS" ]; then
@@ -19,7 +19,7 @@ SIZE=$4
 if [ -z "$SIZE" ]; then
 	SIZE=1600
 fi
-NFRAMES=$(echo "scale=0;$COLUMNS*$ROWS" | bc)
+NFRAMES=$(echo "scale=0;$COLS*$ROWS" | bc)
 DURX=$(ffmpeg -i "$INPUT" 2>&1 | grep Duration | awk '{print $2}' | tr -d ,)
 DURATION=$(ffmpeg -i "$INPUT" 2>&1 | grep "Duration"| cut -d ' ' -f 4 | sed s/,// | sed 's@\..*@@g' | awk '{ split($1, A, ":"); split(A[3], B, "."); print 3600*A[1] + 60*A[2] + B[1] }')
 RES=$(ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 "$INPUT")
@@ -30,27 +30,27 @@ TMPDIR="/tmp/thumbnails-${RANDOM}/"
 mkdir $TMPDIR
 
 for (( VARIABLE=0; VARIABLE<NFRAMES; VARIABLE++ ))
-do
-OFFSET=$(echo "scale=2;$VARIABLE*$DURATION/$NFRAMES+$DURATION/$NFRAMES/2" | bc)
+	do
+	OFFSET=$(echo "scale=2;$VARIABLE*$DURATION/$NFRAMES+$DURATION/$NFRAMES/2" | bc)
 
-if [ $VARIABLE -gt 9 ];then
-  ZEROS="00"
-  if [ $VARIABLE -gt 99 ];then
-    ZEROS="0"
-    if  [ $VARIABLE -gt 999 ];then
-       ZEROS=""
-    fi
-  fi
-else
-	ZEROS="000"
-fi
+	if [ $VARIABLE -gt 9 ];then
+		ZEROS="00"
+			if [ $VARIABLE -gt 99 ];then
+			ZEROS="0"
+				if  [ $VARIABLE -gt 999 ];then
+				ZEROS=""
+			fi
+		fi
+	else
+		ZEROS="000"
+	fi
 
-# Create thumbnails
-ffmpeg -start_at_zero -copyts -ss $OFFSET -i "$INPUT" -vf "drawtext=fontfile=$FONT:fontsize=45:fontcolor=white::shadowcolor=black:shadowx=2:shadowy=2:box=1:boxcolor=black@0:x=(W-tw)/40:y=H-th-20:text='%{pts\:gmtime\:0\:%H\\\\\\:%M\\\\\:%S}'" -vframes 1 ${TMPDIR}$ZEROS$VARIABLE.png
+	# Create thumbnails
+	ffmpeg -start_at_zero -copyts -ss $OFFSET -i "$INPUT" -vf "drawtext=fontfile=$FONT:fontsize=45:fontcolor=white::shadowcolor=black:shadowx=2:shadowy=2:box=1:boxcolor=black@0:x=(W-tw)/40:y=H-th-20:text='%{pts\:gmtime\:0\:%H\\\\\\:%M\\\\\:%S}'" -vframes 1 ${TMPDIR}$ZEROS$VARIABLE.png
 done
 
 # Merge thumbnails into tile image
-ffmpeg -pattern_type glob -i "${TMPDIR}*.png" -filter_complex tile=${COLUMNS}x${COLUMNS}:margin=4:padding=4:color=white ${TMPDIR}output.png
+ffmpeg -pattern_type glob -i "${TMPDIR}*.png" -filter_complex tile=${COLS}x${ROWS}:margin=4:padding=4:color=white ${TMPDIR}output.png
 
 # Output metadata to file
 echo "Filename:   $INPUT" >>${TMPDIR}metadata.txt