nixos-configs/devices/nos/modules/subtitles/syncing/node-syncsub/main.ts
matt1432 148e8e9daf
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feat(node-syncsub): improve language logic
2024-03-30 02:28:22 -04:00

75 lines
2 KiB
TypeScript
Executable file

import { readdir } from 'fs';
import { ffprobe } from 'fluent-ffmpeg';
import { spawn } from 'child_process';
import { iso6391To3 } from './lang-codes';
const SUB_EXT_LENGTH = 7;
const FILE = process.argv[2];
const main = () => {
const BASE_NAME = FILE.substring(
FILE.lastIndexOf('/') + 1,
FILE.length - SUB_EXT_LENGTH,
);
const DIR = FILE.substring(0, FILE.lastIndexOf('/'));
readdir(DIR, (_, files) => {
const VIDEO = `${DIR}/${files.filter((f) =>
f.includes(BASE_NAME) &&
!f.endsWith('.nfo') &&
!f.endsWith('.srt'))[0]}`;
ffprobe(VIDEO, (_e, data) => {
const LANG = iso6391To3.get(FILE.split('.').at(-2) ?? 'en') ?? 'eng';
const OUT_FILE = `${BASE_NAME}.synced.${LANG.substring(0, 2)}.srt`;
const OUT_PATH = `${DIR}/${OUT_FILE}`;
if (files.includes(OUT_FILE)) {
console.warn('Synced subtitles already exist, not doing anything');
process.exit(0);
}
const availLangs = data.streams
.filter((s) => s.codec_type === 'audio')
.map((s) => s['tags']['language']);
const cmd = [
'--cli sync',
`--sub-lang ${LANG}`,
`--ref-stream-by-lang ${availLangs.includes(LANG) ? LANG : availLangs[0]}`,
'--ref-stream-by-type "audio"',
`--sub '${FILE}'`,
`--out '${OUT_PATH}'`,
// `--out '${OUT_PATH}'`,
`--ref '${VIDEO}'`,
// '--overwrite',
];
spawn('subsync', cmd, {
shell: true,
stdio: [process.stdin, process.stdout, process.stderr],
});
});
});
};
if (FILE) {
if (FILE.includes('synced.srt')) {
console.warn('Won\'t sync already synced subtitles, not doing anything');
process.exit(0);
}
else {
main();
}
}
else {
console.error('Error: no argument passed');
process.exit(1);
}