audiobook-prepare

Based on the auto-m4b made by seanap but adapted to my own needs.

This is a docker container that will watch a folder for new books, auto convert mp3 books to chapterized m4b, and move all m4b books to a specific output folder.

Intended Use

This is meant to be an automated step between aquisition and tagging.

• Install via docker-compose
• Save new audiobooks to /input folder.
• All multifile m4b/mp3/m4a/ogg books will be converted to a chapterized m4b and saved to an /untagged folder

Known Limitations

• The chapters are based on the mp3 tracks. A single mp3 file will become a single m4b with 1 chapter, also if the mp3 filenames are garbarge then your m4b chapternames will be terrible as well. See section on Chapters below for how to manually adjust.
• This folder assumes that each subfolder in /input volume will contain exactly one book.
• The conversion process actually strips some tags and covers from the files, which is why you need to use a tagger (mp3tag or beets.io) before adding to Plex.

How to use

This docker uses the following folders which should be mapped as volumes: /input: File scanned for audiobooks to be handled /ouput: Location where the handled audiobooks will be placed in individual subfolders /failed: Location where failed audiobooks will be placed /ebookfiles: Location where any ebook files discovered will be placed /config: Location where a logfile (processing.log) will be placed

Installation

1. Install docker https://docs.docker.com/engine/install/ubuntu/
2. Manage docker as non-root https://docs.docker.com/engine/install/linux-postinstall/
3. Install docker-compose https://docs.docker.com/compose/install/
4. Create the compose file:
   nano docker-compose.yml
5. Paste the yaml code below into the compose file, and change the volume mount locations
6. Put a test mp3 in the /temp/recentlyadded directory.
7. Start the docker (It should convert the mp3 and leave it in your /temp/untagged directory. It runs automatically every 5 min)
   docker-compose up -d

Using docker-compose.yml

• Map the volumes as needed
• Replace the PUID and PGID with your user ( ?

Environment variables

Environment variable	Description
PUID	Id of the user running the application
PGUID	Id of the group of the user running the application
CPU_CORES	Number of CPU cores to use for m4b-tool
MONITOR_DIR	Set to 1 to keep running the application to check for new files
SLEEPTIME	Time to sleep between each run, only used if MONITOR_DIR is 1