add anime subtitle fixer

Tdarr_Plugin_gabehf_Anime_Subtitle_Fixer.js

@@ -0,0 +1,101 @@
+/* eslint max-len: 0, no-plusplus: ["error", { "allowForLoopAfterthoughts": true }] */
+const details = () => ({
+  id: 'Tdarr_Plugin_gabehf_Anime_Subtitle_Fixer',
+  Stage: 'Pre-processing',
+  Name: 'Anime Subtitle Fixer',
+  Type: 'Subtitle',
+  Operation: 'Transcode',
+  Description:
+    'If no subtitles in the preferred language are made default already, this plugin sets the subtitle stream in that language as default that is not named "Forced". \\n '
+    + 'This is meant to set the full subtitle stream as default for anime who use the naming scheme "English" as full, and "English Forced" for signs & songs. \\n',
+  Version: '1.0',
+  Tags: 'pre-processing,ffmpeg,subtitle only,configurable',
+  Inputs: [{
+    name: 'preferred_language',
+    type: 'string',
+    defaultValue: 'eng,en',
+    inputUI: {
+      type: 'text',
+    },
+    tooltip:
+      'Your preferred language code(s) in ISO 639-2 language scheme, separated by a comma. Only the first track that matches any of these language codes will be made default. \\n Default: eng,en',
+  }],
+});
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+const plugin = (file, librarySettings, inputs, otherArguments) => {
+  let languages = [];
+  const lib = require('../methods/lib')();
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars,no-param-reassign
+  inputs = lib.loadDefaultValues(inputs, details);
+  if (inputs.preferred_language === '') {
+    languages = ['eng', 'en']; // these languages should be kept, named according to ISO 639-2 language scheme
+  } else {
+    languages = inputs.preferred_language.toLowerCase().split(','); // these languages should be kept, named according to ISO 639-2 language scheme
+  }
+  const response = {
+    processFile: false,
+    preset: '',
+    container: `.${file.container}`,
+    handBrakeMode: false,
+    FFmpegMode: true,
+    reQueueAfter: false,
+    infoLog: '',
+  };
+
+  // Check if file is a video. If it isn't then exit plugin.
+  if (file.fileMedium !== 'video') {
+    // eslint-disable-next-line no-console
+    console.log('File is not video');
+    response.infoLog += '☒File is not video \n';
+    response.processFile = false;
+    return response;
+  }
+
+  // Set up required variables.
+  let ffmpegCommandInsert = '';
+  let subtitleIdx = 0;
+  let convert = false;
+  const defaults = []; // list of tracks currently set as default
+  for (let i = 0; i < file.ffProbeData.streams.length; i++) {
+    try {
+      if (file.ffProbeData.streams[i].codec_type.toLowerCase() === 'subtitle') {
+        defaults[subtitleIdx] = file.ffProbeData.streams[i].disposition.default === 1;
+        if (!convert && file.ffProbeData.streams[i].disposition.default === 0 && languages.includes(file.ffProbeData.streams[i].tags.language) && !file.ffProbeData.streams[i].tags.title.toLowerCase().includes('forced')) {
+          convert = true;
+          ffmpegCommandInsert += `-disposition:s:${subtitleIdx} default `;
+          response.infoLog += `☒Subtitle stream 0:s:${subtitleIdx} is the first track in preferred language, not named forced, and not currently default; setting as default. \n`;
+        } else if (file.ffProbeData.streams[i].disposition.default === 1 && languages.includes(file.ffProbeData.streams[i].tags.language)) {
+          // if any subtitle with the preferred language is marked default, no action is needed.
+          convert = false;
+          response.infoLog = '';
+          break;
+        }
+        subtitleIdx += 1;
+      }
+    } catch (err) {
+      // Error
+    }
+  }
+  if (convert) {
+    // remove previous default(s)
+    for (let i = 0; i < defaults.length; i++) {
+      if (defaults[i]) {
+        ffmpegCommandInsert += `-disposition:s:${i} 0 `;
+        response.infoLog += `☒Subtitle stream 0:s:${i} was default but not in preferred language; removing disposition. \n`;
+      }
+    }
+  }
+  // Convert file if convert variable is set to true.
+  if (convert === true) {
+    response.processFile = true;
+    response.preset = `, -map 0 ${ffmpegCommandInsert}-c copy -max_muxing_queue_size 9999`;
+    response.container = `.${file.container}`;
+    response.reQueueAfter = true;
+  } else {
+    response.processFile = false;
+    response.infoLog += "☑File doesn't contain subtitle tracks that require modification.\n";
+  }
+  return response;
+};
+module.exports.details = details;
+module.exports.plugin = plugin;