lainTSX/scripts/extract/extract_voice.mjs

import { spawnSync } from "child_process";
import { readFileSync, mkdirSync, writeFileSync } from "fs";
import { join } from "path";

export function extract_voice(tempdir, jpsxdec_jar) {
  spawnSync(
    "java",
    [
      "-jar",
      jpsxdec_jar,
      "-x",
      join(tempdir, "disc1.idx"),
      "-i",
      "VOICE.BIN",
      "-dir",
      tempdir,
    ],
    { stdio: "inherit" }
  );
  const voice_files = JSON.parse(readFileSync("voice.json"));

  let voice_data = readFileSync(join(tempdir, "VOICE.BIN"));
  let output_folder = join("..", "..", "src", "static", "voice");

  mkdirSync(output_folder, { recursive: true });

  for (let voice_file of voice_files) {
    let tempfile = join(tempdir, voice_file.translated_name);
    let outfile = join(
      output_folder,
      voice_file.translated_name.replace("WAV", "mp4")
    );
    let data = voice_data.slice(
      voice_file.offset,
      voice_file.offset + voice_file.size
    );
    writeFileSync(tempfile, data);
    if (["BYA.WAV", "BYO.WAV", "BYU.WAV"].includes(voice_file.original_name)) {
      spawnSync("ffmpeg", ["-i", tempfile, outfile]);
    } else {
      spawnSync("ffmpeg", [
        "-sample_rate",
        22050,
        "-f",
        "s16le",
        "-i",
        tempfile,
        outfile,
      ], {stdio:'inherit'});
    }
  }
}