commit 526f064e17bf862344c43fad92896f72ba62dd8b
Author: rbeck4 <rbeck4@uw.edu>
Date:   Wed Mar 3 11:31:58 2021 -0800

    Version 3.1

diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
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+V3.1
+README COMING SOON
diff --git a/transcode.sh b/transcode.sh
new file mode 100644
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+++ b/transcode.sh
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+#!/bin/bash
+
+#Is a 'slave' script to run an ffmpeg (and ffprobe) command.  Generally it will
+#take a file specified on the 'host' machine that has a list of files; copy a
+#version down locally, transcode it, then replace the original file on the 
+#'host', and remove the temporary files.
+#
+#You will need to have both FFMPEG and FFPROBE installed (and will need
+#to pray to St. Isidore... good luck if you encounter issues.
+
+#Default operations, change if necessary
+HostName="Clementine" #if localhost then will do locally (removes ssh/scp cmds)
+hostFile="/tmp/transcode/list.txt"
+tmpDIR="$PWD/tmpTranscode"
+workDIR="$PWD/transcode"
+
+#DEFINE FUNCTIONS
+function encode {
+  local tmpFL=$1
+  local outFL=$2
+  ffmpeg -hide_banner -loglevel error -stats -re -i "$tmpFL" -map 0 -c copy \
+          -c:v libx265 -preset slow -x265-params crf=23 -map_metadata 0 \
+          -use_wallclock_as_timestamps 1 \
+          -map_chapters 0 -max_muxing_queue_size 9999 "$outFL"
+}
+
+function burnSubs {
+  local inFL=$1
+  local tmpFL=$2
+  local outFL=$3
+  local track=$4
+
+  encode "$inFL" "$tmpFL"
+
+  rm "$inFL" #SAVE SPACE
+
+  #EVIDTNELY NECESSARY SO THAT FILES AREN'T 198+ HRS IN LEN. AT THE END
+  #(not that I'd complain abt 200+ hrs of Tanya [test file /shrug])
+  local DURATION=$( ffprobe -loglevel error -show_entries format=duration \
+                -of default=noprint_wrappers=1:nokey=1 "$tmpFL" )
+
+  ffmpeg -hide_banner -loglevel error -stats -i "$tmpFL" \
+          -filter_complex "[0:v][0:s:$track]overlay[v]" -map "[v]" \
+          -map 0:a -c:a copy -map 0:s -map -0:s:$track -c:s copy \
+          -map_metadata 0 -map_chapters 0 -max_muxing_queue_size 9999 \
+          -t $DURATION "$outFL"
+}
+
+#MAIN FUNCTION BEGINS
+mkdir -p $tmpDIR
+mkdir -p $workDIR
+
+if [ -n "$1" ]
+then
+  numIter=$1
+  iterLim="true"
+else
+  numIter=20
+  iterLim="false"
+fi
+
+if ! command -v ffprobe &> /dev/null
+then
+  echo "Need to have ffprobe (and ffmpeg) installed"
+  exit 1
+fi
+if ! command -v ffmpeg &> /dev/null
+then
+  echo "Need to have ffmpeg (and ffprobe) installed"
+  exit 1
+fi
+if ! command -v bc &> /dev/null
+then
+  echo "Need to have bc installed (foreign audio scan)"
+  exit 1
+fi
+
+i=0 #Total number of loops
+j=0 #Failed to obtain job
+k=0 #ffmpeg failed
+declare -a langs #Subtitle Languages
+
+while [ $numIter -gt 0 ] && [ $j -lt 50 ] && [ $k -lt 60 ]
+do
+  if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
+  then
+    filePATH=$( ssh $HostName "head -n1 $hostFile;sed -i -e '1d' $hostFile" )
+  else
+    filePATH=$( head -n1 $hostFile;sed -i -e '1d' $hostFile )
+  fi
+  if [ -n "$filePATH" ]
+  then
+    j=0
+    fileNAME=$( basename "$filePATH" )
+    #PULL DOWN FILE
+    if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
+    then
+      scp -T $HostName:"$( echo $filePATH | sed "s/[][!@#$%^&*( ;)]/\\\&/g" )" "$tmpDIR"
+    else
+      rsync -a --progress "$filePATH" "$tmpDIR/"
+    fi
+
+    #RUN FFMPROBE/FFMPEG
+    echo "DOING $fileNAME"
+    unset langs
+    
+    #DETERMINE THE NUMBER OF ENGLISH SUBTITLES (BURNING BEHAVIOUR)
+    for line in $( ffprobe -loglevel error -select_streams s -show_entries\
+                  stream=index:stream_tags=language -of csv=p=0 \
+                  "$tmpDIR"/"$fileNAME" )
+    do
+      langs+=("$line")
+    done
+    unset line
+    engCounter=0
+    if [ ${#langs[@]} -gt 1 ]
+    then
+      #DETERMINE NUMBER OF ENGLISH-CONTAINING SUBTITLES
+      unset streamNUMBERS
+      declare -a streamNUMBERS
+      for language in "${langs[@]}"
+      do
+        if grep -iq "eng" <<< $language
+        then
+          let ++engCounter
+          delim=","
+          unset addNumber
+          addNumber=( "${language%%"$delim"*}" )
+          streamNUMBERS+=($addNumber)
+        fi
+      done
+      if [ $engCounter -lt 2 ]
+      then
+        #ONLY ONE ENG. SUB TRACK
+          encode "$tmpDIR/$fileNAME" "$workDIR/$fileNAME"
+      else
+        #TEST SUBTITLE TYPE; IF NOT PGS SKIP IT; FEEL FREE TO FILL IN
+        if grep -qi "pgs" <<< $( ffprobe -loglevel error -select_streams s \
+                      -show_entries stream=codec_name \
+                      -of csv=p=0 "$tmpDIR"/"$fileNAME" )
+        then 
+          # MORE THAN ONE SUB TRACK; HAVE TO FIGURE OUT WHICH TO BURN
+          unset streamFRAMES
+          declare -a streamFRAMES
+          #Presuming the one to burn-in is the one with less frames
+          unset minFrames
+          unset maxFrames
+          unset indexITER
+          unset minINDEX
+          minFrames=0 
+          maxFrames=0
+          indexITER=0
+          minINDEX=0
+
+          for index in ${streamNUMBERS[@]}
+          do
+            SUBINDEX=$(expr $index - ${streamNUMBERS[0]})
+            currFrames=$( ffprobe -loglevel error -select_streams s:$SUBINDEX \
+              -show_entries stream_tags=NUMBER_OF_FRAMES-eng -of csv=p=0 \
+              "$tmpDIR/$fileNAME")
+            if [ $indexITER -lt 1 ] 
+            then
+              minFrames=$currFrames
+              maxFrames=$currFrames
+              minINDEX=$index
+              let ++indexITER
+            elif [ $currFrames -lt $minFrames ]
+            then
+              minFrames=$currFrames
+              minINDEX=$index
+              let ++indexITER
+            elif [ $currFrames -gt $maxFrames ]
+            then
+              maxFrames=$currFrames
+              let ++indexITER
+            fi
+          done
+          SUBTITLEINDEX=$(expr $minINDEX - ${streamNUMBERS[0]})
+          #TEST FRAMES IN SUB TRACK, IF < 50% MAX MOST LIKELY ISN'T FOR. AUD.
+          currFrames=$( ffprobe -loglevel error -select_streams s:$SUBTITLEINDEX \
+            -show_entries stream_tags=NUMBER_OF_FRAMES-eng -of csv=p=0 \
+            "$tmpDIR/$fileNAME")
+          if [ $( echo "($currFrames / $maxFrames) < 0.50"|bc ) ]
+          then
+            echo "BURNING STREAM $SUBTITLEINDEX (STREAM $minINDEX) from $fileNAME"
+            #2 PASS 1ST ALTERS VIDEO 2ND DOES SUB BURNING yes this was done dumb
+            #but in my defense I didn't know how to burn before this logic mess.
+            burnSubs "$tmpDIR/$fileNAME" "$tmpDIR/TMP$fileNAME" "$workDIR/$fileNAME" $SUBTITLEINDEX
+          else
+            echo "MIN. SUB TRACK ($SUBTITLEINDEX [$minINDEX])) DUR. > 50% FILM, NOT BURNING"
+            encode "$tmpDIR/$fileNAME" "$workDIR/$fileNAME"
+          fi
+
+        
+        else
+          #TODO expand foreign scan for more than pgs subtitles Need ass and
+          #subtitles filters; don't know how to differentiate at present time.
+          #I'm actually kinda missing a good example; I'm sure they're in there
+          #but I don't know which ones they are lol; lmk if you know one.
+          echo "NOT A PGS SUBTITLE TYPE; PASSING ALL THROUGH, FUTURE DEV."
+          encode "$tmpDIR/$fileNAME" "$workDIR/$fileNAME"
+        fi
+      fi
+    else
+      #ONE OR FEWER SUB TRACKS
+      encode "$tmpDIR/$fileNAME" "$workDIR/$fileNAME"
+    fi     
+    
+    if [ $? != 0 ] || [ $( stat -c%s "$workDIR/$fileNAME" ) -eq 0 ]
+    then
+      #RUN FAILED (EITHER NONZERO EXIT OR THE FILE IS 0 BYTES LARGE)
+      if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
+      then
+        ssh $HostName <<< "echo $( echo $filePATH | sed "s/[!@#$%^&*( ;)-]/\\\&/g" )>>$hostFile"
+      else
+        echo "$filePATH">>$hostFile
+      fi
+      let ++k
+      echo "RUN ($fileNAME) FAILED ($k/60)"
+      if [ $( stat -c%s "$workDIR/$fileNAME" ) -eq 0 ]
+      then 
+        rm "$workDIR"/"$fileNAME"
+      fi
+    else
+      #UPLOAD AND REMOVE THE TRANSCODED FILE
+      if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
+      then
+        scp -T "$workDIR/$fileNAME" $HostName:"$( echo $filePATH | sed "s/[][!@#$%^&*( ;)]/\\\&/g" )"
+      else
+        rsync -a --progress "$workDIR/$fileNAME" "$filePATH"
+      fi
+      if [ $? != 0 ]
+      then
+        echo "UPLOAD OF $filePATH FAILED; EXITING"
+        if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
+        then
+          ssh $HostName <<< "echo $( echo $filePATH | sed "s/[!@#$%^&*( ;)-]/\\\&/g" )>>$hostFile"
+        else
+          echo "$filePATH">>$hostFile
+        fi
+        exit 1
+      else
+        rm "$workDIR"/"$fileNAME"
+      fi
+      k=0
+
+    fi
+    #REMOVE THE TEMP FILE (if necessary)
+    if ls "$tmpDIR"/"$fileNAME"
+    then
+      rm "$tmpDIR"/"$fileNAME"
+    elif ls "$tmpDIR"/"TMP$fileNAME"
+    then
+      rm "$tmpDIR"/"TMP$fileNAME"
+    else
+      echo "Already removed $tmpDIR/$fileNAME?"
+    fi
+
+  else
+    echo "OUT OF FILES!? (try number $j/50) ... sleeping 1 min"
+    let ++j
+    sleep 60
+  fi
+
+#Increment if required
+  if [ $iterLim == "true" ]
+  then
+    let --numIter
+  fi
+  let ++i
+  echo "Done LOOP NUMBER $i!"
+done
+
+exit 0