Update Invidious DASH xtags handling for YouTube.js changes (#6944)

Author: absidue

src/renderer/helpers/api/invidious.js

@@ -867,7 +867,9 @@ export function convertInvidiousToLocalFormat(format) {
   const [initStart, initEnd] = format.init.split('-')
   const [indexStart, indexEnd] = format.index.split('-')
 
-  const duration = parseInt(parseFloat(new URL(format.url).searchParams.get('dur')) * 1000)
+  const url = new URL(format.url)
+
+  const duration = parseInt(parseFloat(url.searchParams.get('dur')) * 1000)
 
   // only converts the properties that are needed to generate a DASH manifest with YouTube.js
   // audioQuality and qualityLabel don't go inside the DASH manifest, but are used by YouTube.js
@@ -904,6 +906,27 @@ export function convertInvidiousToLocalFormat(format) {
         })
   })
 
+  if (localFormat.has_audio && url.searchParams.has('xtags')) {
+    const xtags = url.searchParams.get('xtags').split(':')
+
+    localFormat.language = xtags.find((tag) => tag.startsWith('lang='))?.split('=')[1] || null
+    localFormat.is_drc = xtags.includes('drc=1')
+
+    const audioContent = xtags.find((tag) => tag.startsWith('acont='))?.split('=')[1]
+    localFormat.is_dubbed = audioContent === 'dubbed'
+    localFormat.is_descriptive = audioContent === 'descriptive'
+    localFormat.is_secondary = audioContent === 'secondary'
+    localFormat.is_auto_dubbed = audioContent === 'dubbed-auto'
+    localFormat.is_original = audioContent === 'original' ||
+      (
+        !localFormat.is_dubbed &&
+        !localFormat.is_descriptive &&
+        !localFormat.is_secondary &&
+        !localFormat.is_auto_dubbed &&
+        !localFormat.is_drc
+      )
+  }
+
   return localFormat
 }