78 lines
3.4 KiB
Bash
Executable File
78 lines
3.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# encode - Encode for streaming and schedule cron job
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# Usage: encode
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# Called by cron every minute; process oldest .upload file in ./uploadpage/streams)
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# Check for oldest uploaded file
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_=$(readlink -f -- "${BASH_SOURCE:-$0}") repopath=${_%/*}
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log=$repopath/process.log dir=$repopath/uploadpage/streams
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upload=$(ls -tr "$dir"/*.upload 2>/dev/null |head -1)
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# Finished if no uploadpage/streams/*.upload files found
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[[ $upload ]] || exit 0
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Log(){ # 1:message 2:returncode(empty: no exit) I:file
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echo "$1">>"$log"
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[[ $2 ]] && exit $2 || return 0
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}
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Mail(){ # 1:kind(0:done, 1:wrong type, 2:encoding error) 2:logline I:repopath,email,name,type,start,finish
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source "$repopath/vars" # I:to,user,password,smtp,port
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local sbj msg from="Stream Upload server"
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# Strip the '_' if email set
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[[ $email ]] && to=${email:1}
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[[ $port ]] || port=587
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sbj[0]="Stream Upload encoding done for ${name##*@}"
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sbj[1]="Stream Upload file wrong type: $type"
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sbj[2]="Stream Upload error encoding"
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msg[0]="Heya,\n\nVideo file with tag $name\nEncoding started on $start and finished on $finish.\n\nStream Upload server"
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msg[1]="Heya,\n\nThe file $name from $start is of type $type and could not be used.\n\nStream Upload server\n"
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msg[2]="Heya,\n\nThe file $name started encoding on $start but ran into an error on $finish.\n\nStream Upload server\n"
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if [[ $to && $user && $password && $smtp && $port ]]
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then
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mailer -m "$(echo -e "${msg[$1]}")" -t "$to" -s "${sbj[$1]}" -u "$user" -p "$password" -S "$smtp" -P "$port" -f "$from" &&
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Log "== Mail with subject '${sbj[$1]}' sent to $to" ||
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Log "== Mail with subject '${sbj[$1]}' failed to send"
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Log "Start encoding on $start, finished on $finish"
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else
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Log "== Mail with subject '${sbj[$1]}' could not be sent"
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(($1==2)) && Log "Start encoding on $start, error on $finish"
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fi
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Log "$2" $1
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}
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# Rename upload and check type
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file=${upload%.upload} video=$file.mp4 name=${file##*/} key=${name%%.*}
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rest=${name#*.} date=${rest:0:15} _=${rest:15} email=${_%@*}
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mv "$upload" "$file"
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type=$(file -bL --mime-type "$file")
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[[ ! ${type:0:5} = video ]] && Mail 1 "File $name is of type $type"
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# Encode video
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start=$(date +'%Y-%m-%d at %H:%M:%S') error=0
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## Single pass
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#ffmpeg -y -i "$file" -c:v libx264 -x264opts no-scenecut -b:v 6M -force_key_frames 'expr:gte(t,n_forced*2)' -c:a copy -tune zerolatency -f mp4 "$video" ||
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# Double pass
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set -o pipefail # to get ffmpeg's returncode
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ffmpeg -y -i "$file" -c:v libx264 -x264opts no-scenecut -b:v 6M -maxrate 6M -bufsize 12M -force_key_frames 'expr:gte(t,n_forced*2)' -movflags faststart -c:a copy -tune zerolatency -pass 1 -passlogfile "$file" -f mp4 "$video" 2>&1 |tail -n 20 >"$file.1log" &&
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ffmpeg -y -i "$file" -c:v libx264 -x264opts no-scenecut -b:v 6M -maxrate 6M -bufsize 12M -force_key_frames 'expr:gte(t,n_forced*2)' -movflags faststart -c:a copy -tune zerolatency -pass 2 -passlogfile "$file" -f mp4 "$video" 2>&1 |tail -n 20 >"$file.2log" ||
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error=1
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# Remove logfiles
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rm "$file-*"
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finish=$(date +'%Y-%m-%d at %H:%M:%S')
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((error)) && Mail 2 "Error encoding $name"
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# Remove tailfiles if no errors
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rm "$file".?log
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# Schedule cron job
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m=${date:13:2} m=${m#0} h=${date:11:2} h=${h#0}
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D=${date:8:2} D=${D#0} M=${date:5:2} M=${M#0}
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crontab -l || echo -e "# m h dom mon dow command\n" |crontab -
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line="$m $h $D $M "'*'" $repopath/stream '$name'"
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echo -e "$(crontab -l)\n$line" |crontab -
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Mail 0 "crontab: '$line'"
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