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283 lines
8.6 KiB
283 lines
8.6 KiB
#!/bin/bash
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#Is a 'slave' script to run an ffmpeg (and ffprobe) command. Generally it will
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#take a file specified on the 'host' machine that has a list of files; copy a
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#version down locally, transcode it, then replace the original file on the
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#'host', and remove the temporary files.
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#
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#You will need to have both FFMPEG and FFPROBE installed (and will need
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#to pray to St. Isidore... good luck if you encounter issues.
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#Default operations, change if necessary
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FFBIN="/usr/bin/" #if unusual install or a specific version
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HostName="localhost" #if localhost then will do locally (removes ssh/scp cmds)
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hostFile="/tmp/transcode/list.txt"
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tmpDIR="$PWD/tmpTranscode"
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workDIR="$PWD/transcode"
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#DEFINE FUNCTIONS
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function encode {
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local tmpFL=$1
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local outFL=$2
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$FFBIN/ffmpeg -hide_banner -loglevel error -stats -re -i "$tmpFL" -map 0 \
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-map_metadata 0 -c copy \
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-c:v libx265 -preset slow -x265-params crf=23 \
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-use_wallclock_as_timestamps 1 \
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-map_chapters 0 -max_muxing_queue_size 9999 "$outFL"
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}
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function burnSubs {
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local inFL=$1
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local tmpFL=$2
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local outFL=$3
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local track=$4
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#EVIDTNELY NECESSARY SO THAT FILES AREN'T 198+ HRS IN LEN. AT THE END
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local DURATION=$( ffprobe -loglevel error -show_entries format=duration \
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-of default=noprint_wrappers=1:nokey=1 "$inFL" )
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$FFBIN/ffmpeg -hide_banner -loglevel error -stats -i "$inFL" \
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-filter_complex "[0:v][0:s:$track]overlay[v]" -map "[v]" \
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-map 0:a -c:a copy -map 0:s -map -0:s:$track -c:s copy \
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-map_metadata 0 -map_chapters 0 -max_muxing_queue_size 9999 \
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-t $DURATION "$tmpFL"
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rm "$inFL" #SAVE SPACE
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encode "$tmpFL" "$outFL"
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}
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#MAIN FUNCTION BEGINS
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mkdir -p "$tmpDIR"
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mkdir -p "$workDIR"
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if [ -n "$1" ]
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then
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numIter=$1
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iterLim="true"
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else
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numIter=20
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iterLim="false"
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fi
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if ! command -v $FFBIN/ffprobe &> /dev/null
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then
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echo "Need to have ffprobe (and ffmpeg) installed"
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exit 1
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fi
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if ! command -v $FFBIN/ffmpeg &> /dev/null
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then
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echo "Need to have ffmpeg (and ffprobe) installed"
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exit 1
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fi
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if ! command -v bc &> /dev/null
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then
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echo "Need to have bc installed (foreign audio scan)"
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exit 1
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fi
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i=0 #Total number of loops
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j=0 #Failed to obtain job
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k=0 #ffmpeg failed
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declare -a langs #Subtitle Languages
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while [ $numIter -gt 0 ] && [ $j -lt 50 ] && [ $k -lt 60 ]
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do
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if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
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then
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filePATH=$( ssh $HostName "head -n1 $hostFile;sed -i -e '1d' $hostFile" )
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else
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filePATH=$( head -n1 $hostFile;sed -i -e '1d' $hostFile )
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fi
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if [ -n "$filePATH" ]
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then
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j=0
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fileNAME=$( basename "$filePATH" )
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#PULL DOWN FILE
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if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
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then
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scp $HostName:"$( echo $filePATH | sed "s/[][!@#$%^&*( ;)]/\\\&/g" )" "$tmpDIR"
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else
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rsync -a --progress "$filePATH" "$tmpDIR/"
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fi
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#RUN FFMPROBE/FFMPEG
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echo "DOING $fileNAME"
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unset langs
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#DETERMINE THE NUMBER OF ENGLISH SUBTITLES (BURNING BEHAVIOUR)
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for line in $( $FFBIN/ffprobe -loglevel error -select_streams s -show_entries\
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stream=index:stream_tags=language -of csv=p=0 \
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"$tmpDIR"/"$fileNAME" )
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do
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langs+=("$line")
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done
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unset line
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engCounter=0
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if [ ${#langs[@]} -gt 1 ]
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then
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#DETERMINE NUMBER OF ENGLISH-CONTAINING SUBTITLES
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unset streamNUMBERS
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declare -a streamNUMBERS
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for language in "${langs[@]}"
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do
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if grep -iq "eng" <<< $language
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then
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let ++engCounter
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delim=","
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unset addNumber
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addNumber=( "${language%%"$delim"*}" )
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streamNUMBERS+=($addNumber)
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fi
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done
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if [ $engCounter -lt 2 ]
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then
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#ONLY ONE ENG. SUB TRACK
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echo "ONE ENG. SUB TRACK"
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encode "$tmpDIR/$fileNAME" "$workDIR/$fileNAME"
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else
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#TEST SUBTITLE TYPE; IF NOT PGS SKIP IT; FEEL FREE TO FILL IN
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if grep -qi "pgs" <<< $( $FFBIN/ffprobe -loglevel error -select_streams s \
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-show_entries stream=codec_name \
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-of csv=p=0 "$tmpDIR"/"$fileNAME" )
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then
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# MORE THAN ONE SUB TRACK; HAVE TO FIGURE OUT WHICH TO BURN
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unset streamFRAMES
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declare -a streamFRAMES
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#Presuming the one to burn-in is the one with less frames
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unset minFrames
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unset maxFrames
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unset indexITER
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unset minINDEX
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minFrames=0
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maxFrames=0
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indexITER=0
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minINDEX=0
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for index in ${streamNUMBERS[@]}
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do
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SUBINDEX=$(expr $index - ${streamNUMBERS[0]})
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currFrames=$( $FFBIN/ffprobe -loglevel error -select_streams s:$SUBINDEX \
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-show_entries stream_tags=NUMBER_OF_FRAMES-eng -of csv=p=0 \
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"$tmpDIR/$fileNAME")
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if [ $indexITER -lt 1 ]
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then
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minFrames=$currFrames
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maxFrames=$currFrames
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minINDEX=$index
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let ++indexITER
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elif [ $currFrames -lt $minFrames ]
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then
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minFrames=$currFrames
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minINDEX=$index
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let ++indexITER
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elif [ $currFrames -gt $maxFrames ]
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then
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maxFrames=$currFrames
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let ++indexITER
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fi
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done
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unset SUBTITLEINDEX
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SUBTITLEINDEX=$(expr $minINDEX - ${streamNUMBERS[0]})
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#TEST FRAMES IN SUB TRACK, IF < 15% MAX MOST LIKELY ISN'T FOR. AUD.
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#15% as LOTR dir. comm included, blows up the max number for them...
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currFrames=$( $FFBIN/ffprobe -loglevel error -select_streams s:$SUBTITLEINDEX \
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-show_entries stream_tags=NUMBER_OF_FRAMES-eng -of csv=p=0 \
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"$tmpDIR/$fileNAME")
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if [ $( echo "($currFrames / $maxFrames) < 0.25"|bc -l ) -gt 0 ]
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then
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echo "BURNING STREAM $SUBTITLEINDEX (STREAM $minINDEX) from $fileNAME"
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burnSubs "$tmpDIR/$fileNAME" "$tmpDIR/TMP$fileNAME" "$workDIR/$fileNAME" $SUBTITLEINDEX
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else
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echo "MIN. SUB TRACK ($SUBTITLEINDEX [$minINDEX])) DUR. > 25% FILM, NOT BURNING"
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encode "$tmpDIR/$fileNAME" "$workDIR/$fileNAME"
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fi
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else
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#TODO expand foreign scan for more than pgs subtitles Need ass and
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#subtitles filters; don't know how to differentiate at present time.
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#I'm actually kinda missing a good example; I'm sure they're in there
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#but I don't know which ones they are lol; lmk if you know one.
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echo "NOT A PGS SUBTITLE TYPE; PASSING ALL THROUGH, FUTURE DEV."
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encode "$tmpDIR/$fileNAME" "$workDIR/$fileNAME"
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fi
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fi
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else
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#ONE OR FEWER SUB TRACKS
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encode "$tmpDIR/$fileNAME" "$workDIR/$fileNAME"
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fi
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if [ $? != 0 ] || [ $( stat -c%s "$workDIR/$fileNAME" ) -eq 0 ]
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then
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#RUN FAILED (EITHER NONZERO EXIT OR THE FILE IS 0 BYTES LARGE)
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if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
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then
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ssh $HostName <<< "echo $( echo $filePATH | sed "s/[!@#$%^&*( ;)-]/\\\&/g" )>>$hostFile"
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else
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echo "$filePATH">>$hostFile
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fi
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let ++k
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echo "RUN ($fileNAME) FAILED ($k/60)"
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if [ $( stat -c%s "$workDIR/$fileNAME" ) -eq 0 ]
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then
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rm "$workDIR"/"$fileNAME"
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fi
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else
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#UPLOAD AND REMOVE THE TRANSCODED FILE
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if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
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then
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#scp "$workDIR/$fileNAME" $HostName:"$( echo $filePATH | sed "s/[][!@#$%^&*( ;)]/\\\&/g" )"
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scp "$workDIR/$fileNAME" $HostName:"$filePATH"
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else
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rsync -a --progress "$workDIR/$fileNAME" "$filePATH"
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fi
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if [ $? != 0 ]
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then
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echo "UPLOAD OF $filePATH FAILED; EXITING"
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if [ $( echo "$HostName"|tr [a-z] [A-Z] ) != "LOCALHOST" ]
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then
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ssh $HostName <<< "echo $( echo $filePATH | sed "s/[!@#$%^&*( ;)-]/\\\&/g" )>>$hostFile"
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else
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echo "$filePATH">>$hostFile
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fi
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exit 1
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else
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rm "$workDIR"/"$fileNAME"
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fi
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k=0
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fi
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#REMOVE THE TEMP FILE (if necessary)
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if ls "$workDIR"/"$fileNAME"
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then
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rm "$workDIR"/"$fileNAME"
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else
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echo "Workdir already cleaned"
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fi
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if ls "$tmpDIR"/"$fileNAME"
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then
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rm "$tmpDIR"/"$fileNAME"
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elif ls "$tmpDIR"/"TMP$fileNAME"
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then
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rm "$tmpDIR"/"TMP$fileNAME"
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else
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echo "Already removed $tmpDIR/$fileNAME?"
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fi
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else
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echo "OUT OF FILES!? (try number $j/50) ... sleeping 1 min"
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let ++j
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sleep 60
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fi
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#Increment if required
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if [ $iterLim == "true" ]
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then
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let --numIter
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fi
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let ++i
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echo "Done LOOP NUMBER $i!"
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done
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exit 0
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