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docker-mods-uptime-kuma-tim…/root/usr/local/bin/flac2mp3.sh
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TheCaptain989 a62debcf23 Update flac2mp3.sh 
- Resolves TheCaptain989/lidarr-flac2mp3#37
2022-12-08 18:55:45 -06:00

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#!/bin/bash
# Script to convert FLAC files to MP3 using FFmpeg
# Dev/test: https://github.com/TheCaptain989/lidarr-flac2mp3
# Prod: https://github.com/linuxserver/docker-mods/tree/lidarr-flac2mp3
# Resultant MP3s are fully tagged and retain same permissions as original file
# Dependencies:
# ffmpeg
# ffprobe
# awk
# curl
# jq
# stat
# nice
# basename
# printenv
# chmod
# Exit codes:
# 0 - success; or test
# 1 - no audio tracks detected
# 2 - ffmpeg not found
# 3 - invalid command line arguments
# 5 - specified audio file not found
# 6 - error when creating output directory
# 7 - unknown eventtype environment variable
# 10 - awk script generated an error
# 20 - general error
### Variables
export flac2mp3_script=$(basename "$0")
export flac2mp3_ver="{{VERSION}}"
export flac2mp3_pid=$$
export flac2mp3_config=/config/config.xml
export flac2mp3_log=/config/logs/flac2mp3.txt
export flac2mp3_maxlogsize=1024000
export flac2mp3_maxlog=4
export flac2mp3_debug=0
export flac2mp3_keep=0
export flac2mp3_type=$(printenv | sed -n 's/_eventtype *=.*$//p')
# Usage function
function usage {
usage="
$flac2mp3_script Version: $flac2mp3_ver
Audio conversion script designed for use with Lidarr
Source: https://github.com/TheCaptain989/lidarr-flac2mp3
Usage:
$0 [{-d|--debug} [<level>]] [{-b|--bitrate} <bitrate> | {-v|--quality} <quality> | {-a|--advanced} \"<options>\" {-e|--extension} <extension>] [{-f|--file} <audio_file>] [{-k|--keepfile}] [{-o|--output} <directory>] [{-r|--regex} '<regex>'] [{-t|--tags} <taglist>]
Options:
-d, --debug [<level>] Enable debug logging
level is optional, between 1-3
1 is lowest, 3 is highest
[default: 1]
-b, --bitrate <bitrate> Set output quality in constant bits per second
[default: 320k]
Ex: 160k, 240k, 300000
-v, --quality <quality> Set variable bitrate; quality between 0-9
0 is highest quality, 9 is lowest
For more details, see:
https://trac.ffmpeg.org/wiki/Encode/MP3
-a, --advanced \"<options>\" Advanced ffmpeg options enclosed in quotes
Specified options replace all script defaults
and are sent as entered to ffmpeg for
processing.
For more details on valid options, see:
https://ffmpeg.org/ffmpeg.html#Options
WARNING: You must specify an audio codec!
WARNING: Invalid options could result in script
failure!
Requires -e option to also be specified
For more details, see:
https://github.com/TheCaptain989/lidarr-flac2mp3
-e, --extension <extension> File extension for output file, with or without
dot
Required when -a is specified!
-f, --file <audio_file> The script enters batch mode, using the
specified audio file as input
WARNING: Do not use this argument when called
from Lidarr!
-o, --output <directory> Specify a destination directory for the
converted audio file(s)
It will be created if it does not exist.
-k, --keep-file Do not delete the source file or move it to the
Lidarr Recycle bin
This also disables the Lidarr rescan.
-r, --regex '<regex>' Regular expression used to select input files
[default: \.flac$]
-t, --tags <taglist> Comma separated list of metadata tags to apply
automated corrections to.
Supports: disc, genre
--help Display this help and exit
--version Display script version and exit
Examples:
$flac2mp3_script -b 320k # Output 320 kbit/s MP3 (non-VBR; same as
default behavior)
$flac2mp3_script -v 0 # Output variable bitrate MP3, VBR 220-260
kbit/s
$flac2mp3_script -d -b 160k # Enable debugging level 1 and output a
160 kbit/s MP3
$flac2mp3_script -r '\\\\.[^.]*$' # Convert any file to MP3 (not just FLAC)
$flac2mp3_script -a \"-c:v libtheora -map 0 -q:v 10 -c:a libopus -b:a 192k\" -e .opus
# Convert to Opus format, 192 kbit/s, cover art
$flac2mp3_script -a \"-vn -c:a libopus -b:a 192K\" -e .opus -r '\.mp3$'
# Convert .mp3 files to Opus format, 192 kbit/s
no cover art
$flac2mp3_script -a \"-y -map 0 -c:a aac -b:a 240K -c:v copy\" -e mp4
# Convert to MP4 format, using AAC 240 kbit/s
audio, cover art, overwrite file
$flac2mp3_script -f \"/path/to/audio/a-ha/Hunting High and Low/01 Take on Me.flac\"
# Batch Mode
Output 320 kbit/s MP3
$flac2mp3_script -o \"/path/to/audio\" -k
# Place the converted file(s) in specified
directory and do not delete the original
audio file(s)
"
echo "$usage" >&2
}
# Check for environment variable arguments
if [ -n "$FLAC2MP3_ARGS" ]; then
if [ $# -ne 0 ]; then
flac2mp3_prelogmessage="Warning|FLAC2MP3_ARGS environment variable set but will be ignored because command line arguments were also specified."
else
# Move the environment variable arguments to the command line for processing
flac2mp3_prelogmessage="Info|Using settings from environment variable."
eval set -- "$FLAC2MP3_ARGS"
fi
fi
# Process arguments
while (( "$#" )); do
case "$1" in
-d|--debug ) # Enable debugging, with optional level
if [ -n "$2" ] && [ ${2:0:1} != "-" ] && [[ "$2" =~ ^[0-9]+$ ]]; then
export flac2mp3_debug=$2
shift 2
else
export flac2mp3_debug=1
shift
fi
;;
--help ) # Display usage
usage
exit 0
;;
--version ) # Display version
echo "$flac2mp3_script $flac2mp3_ver"
exit 0
;;
-f|--file ) # Batch Mode
if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
# Overrides detected *_eventtype
export flac2mp3_type="batch"
export flac2mp3_tracks="$2"
shift 2
else
echo "Error|Invalid option: $1 requires an argument." >&2
usage
exit 3
fi
;;
-b|--bitrate ) # Set constant bit rate
if [ -n "$flac2mp3_vbrquality" ]; then
echo "Error|Both -b and -v options cannot be set at the same time." >&2
usage
exit 3
elif [ -n "$flac2mp3_ffmpegadv" -o -n "$flac2mp3_extension" ]; then
echo "Error|The -a and -e options cannot be set at the same time as either -v or -b options." >&2
usage
exit 3
elif [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
export flac2mp3_bitrate="$2"
shift 2
else
echo "Error|Invalid option: $1 requires an argument." >&2
usage
exit 3
fi
;;
-v|--quality ) # Set variable quality
if [ -n "$flac2mp3_bitrate" ]; then
echo "Error|Both -v and -b options cannot be set at the same time." >&2
usage
exit 3
elif [ -n "$flac2mp3_ffmpegadv" -o -n "$flac2mp3_extension" ]; then
echo "Error|The -a and -e options cannot be set at the same time as either -v or -b options." >&2
usage
exit 3
elif [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
export flac2mp3_vbrquality="$2"
shift 2
else
echo "Error|Invalid option: $1 requires an argument." >&2
usage
exit 3
fi
;;
-a|--advanced ) # Set advanced options
if [ -n "$flac2mp3_vbrquality" -o -n "$flac2mp3_bitrate" ]; then
echo "Error|The -a and -e options cannot be set at the same time as either -v or -b options." >&2
usage
exit 3
elif [ -n "$2" ]; then
export flac2mp3_ffmpegadv="$2"
shift 2
else
echo "Error|Invalid option: $1 requires an argument." >&2
usage
exit 3
fi
;;
-e|--extension ) # Set file extension
if [ -n "$flac2mp3_vbrquality" -o -n "$flac2mp3_bitrate" ]; then
echo "Error|The -a and -e options cannot be set at the same time as either -v or -b options." >&2
usage
exit 3
elif [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
export flac2mp3_extension="$2"
shift 2
else
echo "Error|Invalid option: $1 requires an argument." >&2
usage
exit 3
fi
# Test for dot prefix
[ "${flac2mp3_extension:0:1}" != "." ] && flac2mp3_extension=".${flac2mp3_extension}"
;;
-o|--output ) # Set output directory
if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
export flac2mp3_output="$2"
shift 2
else
echo "Error|Invalid option: $1 requires an argument." >&2
usage
exit 3
fi
# Test for trailing backslash
[ "${flac2mp3_output: -1:1}" != "/" ] && flac2mp3_output="${flac2mp3_output}/"
;;
-k|--keep-file ) # Do not delete source file(s)
export flac2mp3_keep=1
shift
;;
-r|--regex ) # Sets the regex used to match input files
if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
export flac2mp3_regex="$2"
shift 2
else
echo "Error|Invalid option: $1 requires an argument." >&2
usage
exit 3
fi
;;
-t|--tags ) # Metadata tags to correct
if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
export flac2mp3_tags="$2"
shift 2
else
echo "Error|Invalid option: $1 requires an argument." >&2
usage
exit 3
fi
;;
-*|--*=) # Unknown option
echo "Error|Unknown option: $1" >&2
usage
exit 20
;;
*) # Remove unknown positional parameters
shift
;;
esac
done
# Test for either -a and -e, but not both: logical XOR = non-equality
if [ "${flac2mp3_ffmpegadv:+data}" != "${flac2mp3_extension:+data}" ]; then
echo "Error|The -a and -e options must be specified together." >&2
usage
exit 3
fi
# Set default bit rate
[ -z "$flac2mp3_vbrquality" -a -z "$flac2mp3_bitrate" -a -z "$flac2mp3_ffmpegadv" -a -z "$flac2mp3_extension" ] && flac2mp3_bitrate="320k"
## Mode specific variables
if [[ "${flac2mp3_type,,}" = "batch" ]]; then
# Batch mode
export lidarr_eventtype="Convert"
elif [[ "${flac2mp3_type,,}" = "lidarr" ]]; then
export flac2mp3_tracks="$lidarr_addedtrackpaths"
# Catch for other environment variable
[ -z "$flac2mp3_tracks" ] && flac2mp3_tracks="$lidarr_trackfile_path"
else
# Called in an unexpected way
echo -e "Error|Unknown or missing 'lidarr_eventtype' environment variable: ${flac2mp3_type}\nNot called from Lidarr.\nTry using Batch Mode option: -f <file>"
exit 7
fi
### Functions
# Can still go over flac2mp3_maxlog if read line is too long
# Must include whole function in subshell for read to work!
function log {(
while read
do
echo $(date +"%y-%-m-%-d %H:%M:%S.%1N")\|"[$flac2mp3_pid]$REPLY" >>"$flac2mp3_log"
local flac2mp3_filesize=$(stat -c %s "$flac2mp3_log")
if [ $flac2mp3_filesize -gt $flac2mp3_maxlogsize ]
then
for i in $(seq $((flac2mp3_maxlog-1)) -1 0); do
[ -f "${flac2mp3_log::-4}.$i.txt" ] && mv "${flac2mp3_log::-4}."{$i,$((i+1))}".txt"
done
[ -f "${flac2mp3_log::-4}.txt" ] && mv "${flac2mp3_log::-4}.txt" "${flac2mp3_log::-4}.0.txt"
touch "$flac2mp3_log"
fi
done
)}
# Inspired by https://stackoverflow.com/questions/893585/how-to-parse-xml-in-bash
function read_xml {
local IFS=\>
read -d \< flac2mp3_xml_entity flac2mp3_xml_content
}
# Initiate API Rescan request
function rescan {
flac2mp3_message="Info|Calling Lidarr API to rescan artist"
echo "$flac2mp3_message" | log
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Forcing rescan of artist '$lidarr_artist_id'. Calling Lidarr API 'RefreshArtist' using POST and URL '$flac2mp3_api_url/command'" | log
flac2mp3_result=$(curl -s -H "X-Api-Key: $flac2mp3_apikey" \
-H "Content-Type: application/json" \
-d "{\"name\": \"RefreshArtist\", \"artistId\": $lidarr_artist_id}" \
-X POST "$flac2mp3_api_url/command")
[ $flac2mp3_debug -ge 2 ] && echo "API returned: $flac2mp3_result" | awk '{print "Debug|"$0}' | log
flac2mp3_jobid="$(echo $flac2mp3_result | jq -crM .id)"
if [ "$flac2mp3_jobid" != "null" ]; then
local flac2mp3_return=0
else
local flac2mp3_return=1
fi
return $flac2mp3_return
}
# Check result of rescan job
function check_rescan {
local i=0
for ((i=1; i <= 15; i++)); do
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Checking job $flac2mp3_jobid completion, try #$i. Calling Lidarr API using GET and URL '$flac2mp3_api_url/command/$flac2mp3_jobid'" | log
flac2mp3_result=$(curl -s -H "X-Api-Key: $flac2mp3_apikey" \
-H "Content-Type: application/json" \
-X GET "$flac2mp3_api_url/command/$flac2mp3_jobid")
[ $flac2mp3_debug -ge 2 ] && echo "API returned: $flac2mp3_result" | awk '{print "Debug|"$0}' | log
if [ "$(echo $flac2mp3_result | jq -crM .status)" = "completed" ]; then
local flac2mp3_return=0
break
else
if [ "$(echo $flac2mp3_result | jq -crM .status)" = "failed" ]; then
local flac2mp3_return=2
break
else
# It may have timed out, so let's wait a second
local flac2mp3_return=1
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Job not done. Waiting 1 second." | log
sleep 1
fi
fi
done
return $flac2mp3_return
}
### End Functions
# Check for required binaries
if [ ! -f "/usr/bin/ffmpeg" ]; then
flac2mp3_message="Error|/usr/bin/ffmpeg is required by this script"
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
exit 2
fi
if [ ! -f "/usr/bin/ffprobe" ]; then
flac2mp3_message="Error|/usr/bin/ffprobe is required by this script"
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
exit 2
fi
# Log Debug state
if [ $flac2mp3_debug -ge 1 ]; then
flac2mp3_message="Debug|Enabling debug logging level ${flac2mp3_debug}. Starting ${lidarr_eventtype^} run."
echo "$flac2mp3_message" | log
echo "$flac2mp3_message"
fi
# Log FLAC2MP3_ARGS usage
if [ -n "$flac2mp3_prelogmessage" ]; then
# flac2mp3_prelogmessage is set above, before argument processing
echo "$flac2mp3_prelogmessage" | log
[ $flac2mp3_debug -ge 1 ] && echo "Debug|FLAC2MP3_ARGS: ${FLAC2MP3_ARGS}" | log
fi
# Log environment
[ $flac2mp3_debug -ge 2 ] && printenv | sort | sed 's/^/Debug|/' | log
# Log Batch mode
if [ "$flac2mp3_type" = "batch" ]; then
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Switching to batch mode. Input filename: ${flac2mp3_tracks}" | log
fi
# Check for config file
if [ "$flac2mp3_type" = "batch" ]; then
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Not using config file in batch mode." | log
elif [ -f "$flac2mp3_config" ]; then
# Read Lidarr config.xml
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Reading from Lidarr config file '$flac2mp3_config'" | log
while read_xml; do
[[ $flac2mp3_xml_entity = "Port" ]] && flac2mp3_port=$flac2mp3_xml_content
[[ $flac2mp3_xml_entity = "UrlBase" ]] && flac2mp3_urlbase=$flac2mp3_xml_content
[[ $flac2mp3_xml_entity = "BindAddress" ]] && flac2mp3_bindaddress=$flac2mp3_xml_content
[[ $flac2mp3_xml_entity = "ApiKey" ]] && flac2mp3_apikey=$flac2mp3_xml_content
done < $flac2mp3_config
[[ $flac2mp3_bindaddress = "*" ]] && flac2mp3_bindaddress=localhost
# Build URL to Lidarr API
flac2mp3_api_url="http://$flac2mp3_bindaddress:$flac2mp3_port$flac2mp3_urlbase/api/v1"
# Check Lidarr version
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Getting Lidarr version. Calling Lidarr API using GET and URL '$flac2mp3_api_url/system/status'" | log
flac2mp3_result=$(curl -s -H "X-Api-Key: $flac2mp3_apikey" \
-H "Content-Type: application/json" \
-X GET "$flac2mp3_api_url/system/status")
flac2mp3_return=$?; [ "$flac2mp3_return" != 0 ] && {
flac2mp3_message="Error|[$flac2mp3_return] curl error when parsing: \"$flac2mp3_api_url/system/status\""
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
}
[ $flac2mp3_debug -ge 2 ] && echo "API returned: $flac2mp3_result" | awk '{print "Debug|"$0}' | log
flac2mp3_version="$(echo $flac2mp3_result | jq -crM .version)"
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Detected Lidarr version $flac2mp3_version" | log
# Get RecycleBin
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Getting Lidarr RecycleBin. Calling Lidarr API using GET and URL '$flac2mp3_api_url/config/mediamanagement'" | log
flac2mp3_result=$(curl -s -H "X-Api-Key: $flac2mp3_apikey" \
-H "Content-Type: application/json" \
-X GET "$flac2mp3_api_url/config/mediamanagement")
flac2mp3_return=$?; [ "$flac2mp3_return" != 0 ] && {
flac2mp3_message="Error|[$flac2mp3_return] curl error when parsing: \"$flac2mp3_api_url/config/mediamanagement\""
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
}
[ $flac2mp3_debug -ge 2 ] && echo "API returned: $flac2mp3_result" | awk '{print "Debug|"$0}' | log
flac2mp3_recyclebin="$(echo $flac2mp3_result | jq -crM .recycleBin)"
# Test for trailing backslash
[ ${#flac2mp3_recyclebin} -ne 0 -a "${flac2mp3_recyclebin: -1:1}" != "/" ] && flac2mp3_recyclebin="${flac2mp3_recyclebin}/"
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Detected Lidarr RecycleBin '$flac2mp3_recyclebin'" | log
# Get root folder path from Artist info
if [ "$lidarr_artist_id" != "" ]; then
flac2mp3_result=$(curl -s -H "X-Api-Key: $flac2mp3_apikey" \
-H "Content-Type: application/json" \
-X GET $flac2mp3_api_url/artist/$lidarr_artist_id)
flac2mp3_return=$?; [ "$flac2mp3_return" != 0 ] && {
flac2mp3_message="Error|[$flac2mp3_return] curl error when parsing: \"$flac2mp3_api_url/artist/$lidarr_artist_id\""
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
}
[ $flac2mp3_debug -ge 2 ] && echo "API returned: $flac2mp3_result" | awk '{print "Debug|"$0}' | log
flac2mp3_root="$(echo $flac2mp3_result | jq -crM .rootFolderPath)"
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Detected Lidarr Root Folder '$flac2mp3_root'" | log
fi
else
# No config file means we can't call the API. Best effort at this point.
flac2mp3_message="Warn|Unable to locate Lidarr config file: '$flac2mp3_config'"
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
fi
# Handle Lidarr Test event
if [[ "$lidarr_eventtype" = "Test" ]]; then
echo "Info|Lidarr event: $lidarr_eventtype" | log
flac2mp3_message="Info|Script was test executed successfully."
echo "$flac2mp3_message" | log
echo "$flac2mp3_message"
exit 0
fi
# Check if source audio file exists
if [ "$flac2mp3_type" = "batch" -a ! -f "$flac2mp3_tracks" ]; then
flac2mp3_message="Error|Input file not found: \"$flac2mp3_tracks\""
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
exit 5
fi
# Check for empty track variable
if [ -z "$flac2mp3_tracks" ]; then
flac2mp3_message="Error|No audio tracks were detected or specified!"
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
exit 1
fi
# If specified, check if destination folder exists and create if necessary
if [ "$flac2mp3_output" -a ! -d "$flac2mp3_output" ]; then
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Destination directory does not exist. Creating: $flac2mp3_output" | log
mkdir -p "$flac2mp3_output"
flac2mp3_return=$?; [ "$flac2mp3_return" != 0 ] && {
flac2mp3_message="Error|[$flac2mp3_return] mkdir returned an error. Unable to create output directory."
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
exit 6
}
fi
# Legacy one-liner script for posterity
#find "$lidarr_artist_path" -name "*.flac" -exec bash -c 'ffmpeg -loglevel warning -i "{}" -y -acodec libmp3lame -b:a 320k "${0/.flac}.mp3" && rm "{}"' {} \;
#### BEGIN MAIN
# Build dynamic log message
flac2mp3_message="Info|Lidarr event: ${lidarr_eventtype}"
if [ "$flac2mp3_type" != "batch" ]; then
flac2mp3_message+=", Artist: ${lidarr_artist_name} (${lidarr_artist_id}), Album: ${lidarr_album_title} (${lidarr_album_id})"
fi
if [ -z "$flac2mp3_ffmpegadv" ]; then
flac2mp3_message+=", Export bitrate: ${flac2mp3_bitrate:-$flac2mp3_vbrquality}"
else
flac2mp3_message+=", Advanced options: '${flac2mp3_ffmpegadv}', File extension: ${flac2mp3_extension}"
fi
if [ -n "$flac2mp3_output" ]; then
flac2mp3_message+=", Output: ${flac2mp3_output}"
fi
if [ $flac2mp3_keep = 1 ]; then
flac2mp3_message+=", Keep source"
fi
if [ -n "$flac2mp3_regex" ]; then
flac2mp3_message+=", Matching regex: '${flac2mp3_regex}'"
fi
flac2mp3_message+=", Track(s): ${flac2mp3_tracks}"
echo "${flac2mp3_message}" | log
# Process tracks
echo -n "$flac2mp3_tracks" | awk -v Debug=$flac2mp3_debug \
-v Recycle="$flac2mp3_recyclebin" \
-v Bitrate="$flac2mp3_bitrate" \
-v VBR="$flac2mp3_vbrquality" \
-v FFmpegADV="$flac2mp3_ffmpegadv" \
-v Ext="$flac2mp3_extension" \
-v Output="$flac2mp3_output" \
-v Keep=$flac2mp3_keep \
-v Pat="$flac2mp3_regex" \
-v Root="$flac2mp3_root" \
-v Taglist="$flac2mp3_tags" '
BEGIN {
FFmpeg = "/usr/bin/ffmpeg"
FS = "|"
RS = "|"
IGNORECASE = 1
# Set default extension, pattern, and logging values
if (Ext == "") Ext = ".mp3"
if (Pat == "") Pat = "\\.flac$"
if (Debug == 0) FFmpegLOG = "error"
else if (Debug == 1) FFmpegLOG = "warning"
else if (Debug >= 2) FFmpegLOG = "info"
if (Bitrate) {
if (Debug >= 1) print "Debug|Using constant bitrate of "Bitrate
BrCommand = "-b:a "Bitrate
} else if (VBR >= 0) {
if (Debug >= 1) print "Debug|Using variable quality of "VBR
BrCommand = "-q:a "VBR
} else if (FFmpegADV) {
if (Debug >= 1) print "Debug|Using advanced ffmpeg options \""FFmpegADV"\""
if (Debug >= 1) print "Debug|Exporting with file extension \""Ext"\""
FFmpegOPTS = FFmpegADV
}
if (Debug >= 1) print "Debug|Matching tracks against regex \""Pat"\""
# Set default ffmpeg options
if (FFmpegOPTS == "") FFmpegOPTS = "-c:v copy -map 0 -y -acodec libmp3lame "BrCommand" -write_id3v1 1 -id3v2_version 3"
}
$0 !~ Pat {
if (Debug >= 1) print "Debug|Skipping track that did not match regex: "$0
}
$0 ~ Pat {
# Get each audio file name and create a new track name with the given extension
Track = $0
Last = split(Track, Parts, ".")
NewTrack = substr(Track, 1, length(Track) - length(Parts[Last]) - 1) Ext
# Redirect output if asked
if (Output) sub(/^.*\//, Output, NewTrack)
# Check for same track name
if (Track == NewTrack) {
print "Error|The original track name and new name are the same! Skipping track: "Track
next
}
# Set metadata options to fix tags if asked
if (Taglist) {
Metadata = ""; JSON = ""
NumTags = split(Taglist, Tag, ",")
if (Debug >= 1) print "Debug|Detecting and fixing common problems with the following metadata tags: "Taglist
Command = "/usr/bin/ffprobe -hide_banner -loglevel fatal -print_format json=compact=1 -show_format -show_entries \"format=tags : format_tags=disc,genre\" -i \""Track"\" 2>&1"
if (Debug >= 2) print "Debug|Executing: "Command
# Concatenate FFprobe output into one line
while (Command | getline Line) JSON = JSON Line
for (i = 1; i <= NumTags; i++) {
if (Tag[i] == "disc") {
# Fix one disc by itself (\47 is single quote in octal)
Command = "echo \47"JSON"\47 | jq -crM \47.format.tags.disc\47 2>&1"
if (Debug >= 2) print "Debug|Executing: "Command
Command | getline Disc
sub(/\n/, "", Disc) # I do not yet know why this is needed
if (Debug >= 1) print "Debug|Discovered disc: "Disc
if (Disc ~ /^1$/) Metadata = "-metadata disc=\"1/1\" "Metadata
}
if (Tag[i] == "genre") {
# Fix multiple genres
Command = "echo \47"JSON"\47 | jq -crM \47.format.tags | to_entries[] | select(.key | match(\"genre\";\"i\")).value\47 2>&1"
if (Debug >= 2) print "Debug|Executing: "Command
Command | getline Genre
sub(/\n/, "", Genre) # I do not yet know why this is needed
if (Debug >= 1) print "Debug|Discovered genre: "Genre
if (Genre ~ /;/) {
if (Genre ~ /Pop/) Metadata = "-metadata genre=\"Pop\" "Metadata
else if (Genre ~ /Indie/) Metadata = "-metadata genre=\"Alternative & Indie\" "Metadata
else if (Genre ~ /Industrial/) Metadata = "-metadata genre=\"Industrial Rock\" "Metadata
else if (Genre ~ /Electronic/) Metadata = "-metadata genre=\"Electronica & Dance\" "Metadata
else if (Genre ~ /Punk|Alternative/) Metadata = "-metadata genre=\"Alternative & Punk\" "Metadata
else if (Genre ~ /Rock/) Metadata = "-metadata genre=\"Rock\" "Metadata
}
}
if (Debug >= 2) print "Debug|Metadata on pass "i"/"NumTags": "Metadata
}
}
print "Info|Writing: "NewTrack
# Convert the track
Command = "nice "FFmpeg" -loglevel "FFmpegLOG" -nostdin -i \""Track"\" "FFmpegOPTS" "Metadata"\""NewTrack"\" 2>&1"
if (Debug >= 1) print "Debug|Executing: "Command
Result = system(Command)
if (Debug >= 2) print "Debug|ffmpeg exited"
if (Result) {
print "Error|Exit code "Result" converting \""Track"\""
} else {
# Build system command to set owner and permissions, etc.
if (Keep == 1) {
# Do not delete the source file
if (Debug >= 1) print "Debug|Keeping original: \""Track"\" and setting permissions on \""NewTrack"\""
Command = "if [ -s \""NewTrack"\" ]; then if [ -f \""Track"\" ]; then chown --reference=\""Track"\" \""NewTrack"\"; chmod --reference=\""Track"\" \""NewTrack"\"; fi; fi"
} else {
if (Recycle == "") {
# No Recycle Bin, so check for non-zero size new file and delete the old one
if (Debug >= 1) print "Debug|Deleting: \""Track"\" and setting permissions on \""NewTrack"\""
Command = "if [ -s \""NewTrack"\" ]; then if [ -f \""Track"\" ]; then chown --reference=\""Track"\" \""NewTrack"\"; chmod --reference=\""Track"\" \""NewTrack"\"; rm \""Track"\"; fi; fi"
} else {
# Recycle Bin is configured, so check if it exists, append a relative path to it from the track, check for non-zero size new file, and move the old one to the Recycle Bin
if (Root == "") {
# Legacy way in case the Root music folder cannot be determined
print "Warning|Root music folder is blank. Falling back to legacy split method."
match(Track, /^\/?[^\/]+\//)
} else {
# The following logic tests that the Root folder is a substring of the Track folder, though based on the observed Lidarr behavior this should be a safe assumption. A warning is displayed just in case.
RSTART = index(Track, Root)
if (RSTART) {
RLENGTH = length(Root)
} else {
print "Warning|The root music folder \""Root"\" is not part of \""Track"\". Recycled tracks may not appear as expected."
RLENGTH = 0
}
}
if (Debug >= 2) print "Debug|Splitting track name on RSTART: "RSTART", RLENGTH: "RLENGTH" to prepend recycle path."
RecPath = substr(Track, RSTART + RLENGTH)
sub(/^\/+/, "", RecPath) # remove trailing track name
sub(/[^\/]+$/, "", RecPath) # remove leading backslash
RecPath = Recycle RecPath
if (Debug >= 1) print "Debug|Recycling: \""Track"\" to \""RecPath"\" and setting permissions on \""NewTrack"\""
Command = "if [ ! -e \""RecPath"\" ]; then mkdir -p \""RecPath"\"; fi; if [ -s \""NewTrack"\" ]; then if [ -f \""Track"\" ]; then chown --reference=\""Track"\" \""NewTrack"\"; chmod --reference=\""Track"\" \""NewTrack"\"; mv -t \""RecPath"\" \""Track"\"; fi; fi"
}
}
# Set owner, permissions, etc.
if (Debug >= 2) print "Debug|Executing: "Command
Result = system(Command)
if (Result) {
print "Error|Exit code "Result" setting permissions and/or recycling on \""NewTrack"\""
}
}
}
' | log
#### END MAIN
# Check for awk script completion
flac2mp3_return="${PIPESTATUS[1]}" # captures awk exit status
[ $flac2mp3_debug -ge 2 ] && echo "Debug|awk exited with code: $flac2mp3_return" | log
if [ "$flac2mp3_return" != 0 ]; then
flac2mp3_message="Error|[$flac2mp3_return] Script exited abnormally. File permissions issue?"
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
exit 10
fi
# Call Lidarr API to RescanArtist
if [ "$flac2mp3_type" = "batch" ]; then
[ $flac2mp3_debug -ge 1 ] && echo "Debug|Cannot use API in batch mode." | log
elif [ $flac2mp3_keep -eq 1 ]; then
echo "Info|Original audio file(s) kept, no rescan performed." | log
elif [ -n "$flac2mp3_api_url" ]; then
# Check for artist ID
if [ "$lidarr_artist_id" ]; then
# Scan the disk for the new audio tracks
if rescan; then
# Check that the rescan completed
if ! check_rescan; then
# Timeout or failure
flac2mp3_message="Warn|Lidarr job ID $flac2mp3_jobid timed out or failed."
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
fi
else
# Error from API
flac2mp3_message="Error|The 'RefreshArtist' API with artist $lidarr_artist_id failed."
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
fi
else
# No Artist ID means we can't call the API
flac2mp3_message="Warn|Missing environment variable lidarr_artist_id"
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
fi
else
# No URL means we can't call the API
flac2mp3_message="Warn|Unable to determine Lidarr API URL."
echo "$flac2mp3_message" | log
echo "$flac2mp3_message" >&2
fi
# Cool bash feature
flac2mp3_message="Info|Completed in $(($SECONDS/60))m $(($SECONDS%60))s"
echo "$flac2mp3_message" | log
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