Update tv5mondeplus.py to detect subtitles

yt_dlp/extractor/tv5mondeplus.py

@@ -5,6 +5,7 @@
     int_or_none,
     parse_duration,
     try_get,
+    url_or_none,
 )
 
 
@@ -48,6 +49,16 @@ class TV5MondePlusIE(InfoExtractor):
     }]
     _GEO_BYPASS = False
 
+    @staticmethod
+    def _extract_subtitles(data_captions):
+        subtitles = {}
+        for f in try_get(data_captions, lambda x: x['files'], list) or []:
+            subtitle_url = url_or_none(f.get('file'))
+            if subtitle_url:
+                lang = f.get('label') or 'fra'
+                subtitles.setdefault(lang, []).append({'url': subtitle_url})
+        return subtitles
+
     def _real_extract(self, url):
         display_id = self._match_id(url)
         webpage = self._download_webpage(url, display_id)
@@ -95,6 +106,9 @@ def _real_extract(self, url):
         if series and series != title:
             title = '%s - %s' % (series, title)
 
+        subtitles = self._extract_subtitles(self._parse_json(
+            vpl_data.get('data-captions', '{}'), video_id, fatal=False))
+
         upload_date = self._search_regex(
             r'(?:date_publication|publish_date)["\']\s*:\s*["\'](\d{4}_\d{2}_\d{2})',
             webpage, 'upload date', default=None)
@@ -117,4 +131,5 @@ def _real_extract(self, url):
             'formats': formats,
             'series': series,
             'episode': episode,
+            'subtitles': subtitles,
         }