yaacs 1.4.1

Convert your audiobooks to opus to save space while maintaining quality.

YAACS

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Convert your audiobooks to .opus for smaller files at equivalent quality.

Features

• Automatic bitrate selection
• (opt-in) Automatic audiobook discovery
• Automatic cover image discovery
• Automatic chapter discovery
• (opt-in) Automatic deletion of input files
• Multiprocessing to increase conversion throughput

Installation

YAACS depends on the following packages for conversion:

• mkvtoolnix for CUE file chapter parsing
• FFmpeg for metadata detection and conversion
• opustags for cover image insertion.

However, YAACS does not depend on any python packages. As such, it can be installed via your preferred Python package manager, or simply run directly without installation.

Usage

$ yaacs -h
usage: yaacs [-h] [-v] [-t THREADS] [(-i INPUT [INPUT ...] | -a LOCATION [LOCATION ...]) [-x] [-o OUTPUT] [-m METADATA | -M METADATACHAPTER] [-b BITRATE] [-c CUESHEET] [-I COVER]]+

A Script to convert audiobooks to .opus

options:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit
  -t THREADS, --threads THREADS
                        Number of subprocesses to spawn to convert books. Not specifying or 0 will default to core count.
  -i INPUT [INPUT ...], --input INPUT [INPUT ...]
                        Locations of files for conversion. If this is a directory, all audio files recursively contained will be merged into one file.
  -a LOCATION [LOCATION ...], --auto LOCATION [LOCATION ...]
                        Locations to auto-convert. Will recursively search for subfolders which contain no other directories and contain audio file(s). These files will be converted/merged.
  -x, --delete          Delete input files after conversion. DO NOT USE THIS IF YOU DON'T HAVE COMPLETE CONFIDENCE IN THIS TOOL.
  -o OUTPUT, --output OUTPUT
                        Set output file name. Defaults to the name of the first input file with a .opus extension
  -m METADATA, --metadata METADATA
                        FFMETADATA file containing desired final metadata. Use -M if the metadata also contains chapter information
  -M METADATACHAPTER, --metadatachapter METADATACHAPTER
                        FFMETADATA file containing desired final metadata along with chapter data. Use -m to preserve automatic chapter detection.
  -b BITRATE, --bitrate BITRATE
                        Set bitrate for output file. Defaults to 32kbps for inputs under 192kbps, and 192kbps for inputs above that threshold.
  -c CUESHEET, --cuesheet CUESHEET
                        Set location for cuesheet file to read for chapter data. Only works if the input is a singular file.
  -I COVER, --cover COVER
                        Explicitly set final cover file. Will attempt to autodiscover cover if not set.
$ yaacs -a ~/Audiobooks -x # Automatically detect all audiobooks (folders with no subfolders containing audio files) in ~/Audiobooks and convert them. Delete after conversion.
$ yaacs -i Warbreaker -m warbreaker.ffmeta -b 64k # Convert the audiobook within the Warbreaker folder at a bitrate of 64kbps. Use the warbreaker.ffmeta file for metadata, but still auto-detect chapters.