From 93d1c273f53d5d04b5971666f4eecc177b35c98a Mon Sep 17 00:00:00 2001
From: Filipe Laborde-Basto <codefreeze8@gmail.com>
Date: Tue, 24 Mar 2020 22:33:40 -0400
Subject: [PATCH] Initial push

---
 video-joiner.sh | 116 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 video-joiner.sh

diff --git a/video-joiner.sh b/video-joiner.sh
new file mode 100644
index 0000000..35d46e9
--- /dev/null
+++ b/video-joiner.sh
@@ -0,0 +1,116 @@
+#!/bin/sh
+# Written by Filipe Laborde, fil@rezox.com 
+# Date: March, 2020
+# License: MIT
+# Use as you wish, all risk is yours.
+# Compatible with unix based systems (Mac, Ubuntu, Debian, etc.)
+#
+# Usage: ./video-joiner.sh [output.mp4]
+# It will prompt for the files to append together
+
+file_out=$1
+if [ "${#1}" -eq 0 ]; then
+   echo "ERROR: Please give the output filename, ex. ./video-joiner.sh output.mp4"
+   exit
+fi
+
+# init
+starttime=`date +%s`
+ffmpeg_file_list="ffmpeg_list.txt"
+rm -f $ffmpeg_file_list
+touch $ffmpeg_file_list
+
+## check for dependencies - check expected paths ##
+dep_path=("/usr/local/bin/" "/usr/local/opt/" "/usr/bin/" "/usr/share/")
+has_ffmpeg=0
+has_ffprobe=0
+for dep in ${dep_path[*]}; do
+   if [ -x "${dep}ffmpeg" ]; then has_ffmpeg=1; fi
+   if [ -x "${dep}ffprobe" ]; then has_ffprobe=1; fi
+done
+
+if [ $has_ffmpeg -eq 0 ] || [ $has_ffprobe -eq 0 ] ; then
+   echo "ERROR: Missing 'ffmpeg'/'ffprobe', please install, ex. (linux) apt install ffmpeg, (mac) brew install ffmpeg"
+   exit
+fi;
+
+## loop through videos to join ##
+read -e -r -p "Join how many videos? (1) " total_files
+if [ -z $total_files ]; then
+  total_files=1;
+fi
+
+cmd_cnt=0
+file_idx=1
+while [ $file_idx -le $total_files ]; do
+   echo "..........................."
+   
+   read -e -r -p "$file_idx: What is the video? " filename
+   file_ext=`echo "${filename##*.}" | tr '[:upper:]' '[:lower:]'`
+   resolution=`ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 ${filename}`
+   duration_time=`ffprobe ${filename} 2>&1 | grep -E '^ +Duration' | cut -d':' -f2- | cut -d, -f1- | cut -d'.' -f1`
+   if [ -z $duration_time ]; then
+      echo "ERROR: Sorry ${filename} an invalid video file. Quitting."
+      exit;
+   fi;
+
+   read -e -r -p "   .. info: ${resolution}, ${file_ext}, duration: ${duration_time} -- start at (default 00:00:00): " file_start_time
+   if [ ! "${#file_start_time}" -eq 0 ] && [ ! "${#file_start_time}" -eq 8 ]; then
+      echo "ERROR: Invalid start time (${file_start_time}) not in hh:mm:ss format."
+      exit
+   fi
+
+   read -e -r -p "   .. ok, and truncate video at? (default ${duration_time} [ie end]): " file_end_time
+   if [ ! "${#file_end_time}" -eq 0 ] && [ ! "${#file_end_time}" -eq 8 ]; then
+      echo "ERROR: Invalid end time (${file_end_time}) not in hh:mm:ss format."
+      exit
+   fi
+
+   # build temp file using extracted portion of video (or codec change)
+   if [ "${#file_start_time}" -eq 0 ] && [ "${#file_end_time}" -eq 0 ] && [ $file_ext="mp4" ]; then
+      echo "file ${filename}" >> $ffmpeg_file_list
+   else
+      cmd="ffmpeg -hide_banner -loglevel panic -stats "
+      if [ "${#file_start_time}" -eq 8 ]; then
+         cmd+="-ss ${file_start_time} "
+      fi
+      cmd+="-i ${filename} "
+      if [ "${#file_end_time}" -eq 8 ]; then
+         cmd+="-to ${file_end_time} "
+      fi
+      if [ $file_ext="mp4" ]; then
+         cmd+="-c copy "
+      fi   
+      tmp_filename=$filename`date +"%s"`".tmp.mp4"
+      cmd+="${tmp_filename}"
+
+      cmd_list[cmd_cnt]="${cmd}"
+      ((cmd_cnt++))
+      tmp_file_set+=($tmp_filename)
+      echo "file ${tmp_filename}" >> $ffmpeg_file_list
+   fi
+   ((file_idx++))
+done
+
+# final operation is a join
+cmd_list[cmd_cnt]="ffmpeg -hide_banner -loglevel panic -stats -f concat -i $ffmpeg_file_list -c copy ${file_out}"
+
+# now do any individual video modifications and join
+echo "++++++++++++++++++++"
+echo "Preparing video operations (have patience...)"
+
+for cmd in "${cmd_list[@]}"
+do
+    $cmd
+done
+
+# deleting temp files
+for file in ${tmp_file_set[*]}
+do
+    rm $file
+done
+
+endtime=`date +%s`
+runtime=$((endtime-starttime))
+echo "COMPLETE! Written ${file_out} in ${runtime} s"
+