get-tracks/README.md

Get Tracks

get-tracks.sh allows you to easily extract music tracks from a file with multiple songs, like a CD-in-a-file.

Required applications

get-tracks.sh is a simple shell script based around ffmpeg, using xxd and awk.

• ffmpeg
• xxd (with '-r' and '-p' options)
• awk

It was tested on both OpenBSD and Linux.

Usage

Download a CD and the starting time of each track in a file, and you're good to go.

get-tracks.sh <audio-file> <time-file>

# Example
get-track.sh doom-eternal.opus doom-eternal.txt

audio-file can be in any format understood by ffmpeg.

The time-file must have this format:

0:00 intro
2:20 First song
3:18 Awesome song

Environment variables

• SIMULATION [empty or not]
  do not invoke ffmpeg
• NONUMBER [empty or 1]
  do not write song numbers
• FORMAT [mp3,ogg,opus,…]
  see the ffmpeg documentation for the output formats available
• SEPARATOR [separator] (default: ' - ')
  separator between number and name
  example with SEPARATOR='_': 01_intro.opus 02_blah.opus…
• HEADERS [empty or 1]
  print environment parameters (verbosity, simulation, etc.)
• VERBOSITY [0-3] (default: 1)
  0: no output except errors from ffmpeg
  1: simple indications on the current track being extracted
  2: print actual ffmpeg commands the script currently runs

More

Run get-track.sh without arguments.