metastar/metamesh-plugin-language
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bugfix

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This commit is contained in:
Pierre
2026-01-10 19:15:21 +01:00
parent 90e3d00c93
commit 6550ff5973
4 changed files with 79 additions and 66 deletions
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src/plugin.ts
+46 -65
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@@ -1,11 +1,16 @@
/**
* Language Plugin
* Aggregates languages from all streams and determines primary language
* Uses proper ISO 639 conversion matching @metazla/filename-tools
*
* Aggregates languages from all streams (audio, video, subtitle)
* and converts them to ISO 639-3 format.
* Determines the primary language based on first audio > video > subtitle stream.
*
* Matches old LanguageProcessor output:
* - languages (add)
* - titles/{lang} (set originalTitle)
*/
import ISO6391 from 'iso-639-1';
import { iso6393To2T } from 'iso-639-3';
import { anyTo_iso_639_3 } from '@metazla/filename-tools';
import type { PluginManifest, ProcessRequest, CallbackPayload } from './types.js';
import { MetaCoreClient } from './meta-core-client.js';
@@ -22,45 +27,10 @@ export const manifest: PluginManifest = {
timeout: 30000,
schema: {
languages: { label: 'Languages', type: 'array', readonly: true },
primaryLanguage: { label: 'Primary Language', type: 'string', readonly: true },
},
config: {},
};
// Build ISO 639-1 to ISO 639-3 mapping (matching @metazla/filename-tools)
const iso6391To3: Record<string, string> = {};
for (const key in iso6393To2T) {
const value = (iso6393To2T as Record<string, string>)[key];
iso6391To3[value] = key;
}
/**
* Convert any language format to ISO 639-3
* Matches anyTo_iso_639_3 from @metazla/filename-tools
*/
function anyTo_iso_639_3(languageName: string): string | null {
if (!languageName) {
return null;
}
if (languageName.length === 3) {
// Could be ISO 639-3 or ISO 639-2T or ISO 639-2B
// All 3 are similar, just return the input
return languageName;
}
if (languageName.length === 2) {
// Could be ISO 639-1 => validate and convert
return iso6391To3[languageName] || 'und';
}
// Full language name - convert to ISO 639-3
const code1 = ISO6391.getCode(languageName);
if (iso6391To3[code1]) {
return iso6391To3[code1];
}
return null;
}
export async function process(
request: ProcessRequest,
sendCallback: (payload: CallbackPayload) => Promise<void>
@@ -71,56 +41,67 @@ export async function process(
try {
const { cid, existingMeta } = request;
const languages = new Set<string>();
let primaryLanguage: string | null = null;
let streamLanguage: string | null = null;
// Collect from audio streams (highest priority)
// Collect languages from title keys (if existingMeta has titles/*)
for (const key of Object.keys(existingMeta || {})) {
if (key.startsWith('titles/')) {
const langCode = key.substring(7); // Remove 'titles/' prefix
const normalized = anyTo_iso_639_3(langCode);
if (normalized) {
await metaCore.addToSet(cid, 'languages', normalized);
}
}
}
// Collect languages from audio streams (highest priority for primary)
for (let i = 0; i < 20; i++) {
const lang = existingMeta?.[`fileinfo/streamdetails/audio/${i}/language`];
if (!lang) break;
const computedLanguage = anyTo_iso_639_3(lang);
if (computedLanguage && computedLanguage !== 'und') {
languages.add(computedLanguage);
if (!primaryLanguage) primaryLanguage = computedLanguage;
if (computedLanguage) {
await metaCore.addToSet(cid, 'languages', computedLanguage);
if (!streamLanguage) {
streamLanguage = computedLanguage;
}
}
}
// Collect from video streams
// Collect languages from video streams
for (let i = 0; i < 20; i++) {
const lang = existingMeta?.[`fileinfo/streamdetails/video/${i}/language`];
if (!lang) break;
const computedLanguage = anyTo_iso_639_3(lang);
if (computedLanguage && computedLanguage !== 'und') {
languages.add(computedLanguage);
if (!primaryLanguage) primaryLanguage = computedLanguage;
if (computedLanguage) {
await metaCore.addToSet(cid, 'languages', computedLanguage);
if (!streamLanguage) {
streamLanguage = computedLanguage;
}
}
}
// Collect from subtitle streams
// Collect languages from subtitle streams
for (let i = 0; i < 20; i++) {
const lang = existingMeta?.[`fileinfo/streamdetails/subtitle/${i}/language`];
if (!lang) break;
const computedLanguage = anyTo_iso_639_3(lang);
if (computedLanguage && computedLanguage !== 'und') {
languages.add(computedLanguage);
if (!primaryLanguage) primaryLanguage = computedLanguage;
if (computedLanguage) {
await metaCore.addToSet(cid, 'languages', computedLanguage);
if (!streamLanguage) {
streamLanguage = computedLanguage;
}
}
}
// Add languages to set
for (const lang of languages) {
await metaCore.addToSet(cid, 'languages', lang);
// Determine the language of the media file based on:
// 1st audio stream, 2nd video stream, 3rd subtitle stream (first found)
// Assume original title is one of the stream languages or English if not found
const originalTitle = existingMeta?.originalTitle;
if (originalTitle) {
await metaCore.setProperty(cid, `titles/${streamLanguage || 'eng'}`, originalTitle);
}
// Set primary language and title language mapping
if (primaryLanguage) {
await metaCore.setProperty(cid, 'primaryLanguage', primaryLanguage);
const originalTitle = existingMeta?.originalTitle;
if (originalTitle) {
await metaCore.setProperty(cid, `titles/${primaryLanguage}`, originalTitle);
}
}
console.log(`[language] Aggregated languages, primary: ${streamLanguage || 'none'}`);
await sendCallback({
taskId: request.taskId,