ebook-to-audio-book.clj

   1 #! /usr/bin/env bb
   2
   3 ; A utility to listen to your ebooks using TTS programs
   4
   5 (import '[java.nio.file Files FileSystems CopyOption])
   6
   7 (require '[babashka.process :as p]
   8          '[clojure.java.io :as io]
   9          '[clojure.string :refer [split]])
  10
  11 ;; TODO Check if all required utilities are installed
  12
  13 ;; TODO Allow voice selection
  14 (println "Selected voice is Samantha")
  15
  16 ;; TODO Use festival-tts or say depending on OS
  17
  18
  19 (defn run-cmd
  20   [command]
  21   (->> command
  22        p/process
  23        :out
  24        slurp))
  25
  26 (defn extract-file-from-zip
  27   [zip-file-name source destination]
  28   (let [zip-file (io/file zip-file-name)
  29         src (io/file source)
  30         dest (io/file destination)
  31         fs (FileSystems/newFileSystem (.toPath zip-file) nil)
  32         file-in-zip (.getPath fs source (into-array String []))]
  33     (Files/copy file-in-zip (.toPath dest)
  34                 (into-array CopyOption []))))
  35
  36 (let [book-file (first *command-line-args*)
  37       title (first (split book-file #"\."))
  38       txtz-file (str title ".txtz")
  39       txt-file (str title ".txt")
  40       aiff-file (str title ".aiff")
  41       mp3-file (str title ".mp3")]
  42   (println "Converting to text...")
  43   (run-cmd ["ebook-convert" book-file txtz-file])
  44   (extract-file-from-zip txtz-file "index.txt" txt-file)
  45   (println "Converting text to audio. Don't hold your breath!")
  46   (run-cmd ["say" "-f" txt-file "-o" aiff-file])
  47   (println "Creating mp3 file...")
  48   (run-cmd ["ffmpeg" "-i" aiff-file mp3-file])
  49   (println "Cleaning up...")
  50   (run! #(io/delete-file %) [txtz-file txt-file aiff-file])
  51   (println (str "Done! Check out " mp3-file)))