[extractor/hotstar] Improve format metadata

yt_dlp/extractor/hotstar.py

@@ -148,6 +148,12 @@ class HotStarIE(HotStarBaseIE):
         'dr': 'dynamic_range',
     }
 
+    _TAG_FIELDS = {
+        'language': 'language',
+        'acodec': 'audio_codec',
+        'vcodec': 'video_codec',
+    }
+
     @classmethod
     def _video_url(cls, video_id, video_type=None, *, slug='ignore_me', root=None):
         assert None in (video_type, root)
@@ -182,24 +188,22 @@ class HotStarIE(HotStarBaseIE):
                    for key, prefix in self._IGNORE_MAP.items()
                    for ignore in self._configuration_arg(key)):
                 continue
+            tag_dict = dict((t.split(':', 1) + [None])[:2] for t in tags.split(';'))
 
             format_url = url_or_none(playback_set.get('playbackUrl'))
             if not format_url:
                 continue
             format_url = re.sub(r'(?<=//staragvod)(\d)', r'web\1', format_url)
-            dr = re.search(r'dynamic_range:(?P<dr>[a-z]+)', playback_set.get('tagsCombination')).group('dr')
             ext = determine_ext(format_url)
 
             current_formats, current_subs = [], {}
             try:
                 if 'package:hls' in tags or ext == 'm3u8':
                     current_formats, current_subs = self._extract_m3u8_formats_and_subtitles(
-                        format_url, video_id, 'mp4',
-                        entry_protocol='m3u8_native',
-                        m3u8_id=f'{dr}-hls', headers=headers)
+                        format_url, video_id, ext='mp4', headers=headers)
                 elif 'package:dash' in tags or ext == 'mpd':
                     current_formats, current_subs = self._extract_mpd_formats_and_subtitles(
-                        format_url, video_id, mpd_id=f'{dr}-dash', headers=headers)
+                        format_url, video_id, headers=headers)
                 elif ext == 'f4m':
                     pass  # XXX: produce broken files
                 else:
@@ -213,20 +217,32 @@ class HotStarIE(HotStarBaseIE):
                     geo_restricted = True
                 continue
 
-            if tags and 'encryption:plain' not in tags:
+            if tag_dict.get('encryption') not in ('plain', None):
                 for f in current_formats:
                     f['has_drm'] = True
-            if tags and 'language' in tags:
-                lang = re.search(r'language:(?P<lang>[a-z]+)', tags).group('lang')
             for f in current_formats:
-                    if not f.get('langauge'):
-                        f['language'] = lang
+                for k, v in self._TAG_FIELDS.items():
+                    if not f.get(k):
+                        f[k] = tag_dict.get(v)
+                if f.get('vcodec') != 'none' and not f.get('dynamic_range'):
+                    f['dynamic_range'] = tag_dict.get('dynamic_range')
+                if f.get('acodec') != 'none' and not f.get('audio_channels'):
+                    f['audio_channels'] = {
+                        'stereo': 2,
+                        'dolby51': 6,
+                    }.get(tag_dict.get('audio_channel'))
+                f['format_note'] = join_nonempty(
+                    tag_dict.get('ladder'),
+                    tag_dict.get('audio_channel') if f.get('acodec') != 'none' else None,
+                    f.get('format_note'),
+                    delim=', ')
 
             formats.extend(current_formats)
             subs = self._merge_subtitles(subs, current_subs)
 
         if not formats and geo_restricted:
             self.raise_geo_restricted(countries=['IN'], metadata_available=True)
+        self._remove_duplicate_formats(formats)
         for f in formats:
             f.setdefault('http_headers', {}).update(headers)
 
@@ -235,7 +251,7 @@ class HotStarIE(HotStarBaseIE):
             'title': video_data.get('title'),
             'description': video_data.get('description'),
             'duration': int_or_none(video_data.get('duration')),
-            'timestamp': int_or_none(video_data.get('broadcastDate') or video_data.get('startDate')),
+            'timestamp': int_or_none(traverse_obj(video_data, 'broadcastDate', 'startDate')),
             'formats': formats,
             'subtitles': subs,
             'channel': video_data.get('channelName'),