[ie/abc.net.au:iview] Improve `episode` extraction (#8201)

Authored by: xofe

yt_dlp/extractor/abc.py

@@ -181,18 +181,102 @@ class ABCIViewIE(InfoExtractor):
     _GEO_COUNTRIES = ['AU']
 
     _TESTS = [{
+        'url': 'https://iview.abc.net.au/show/utopia/series/1/video/CO1211V001S00',
+        'md5': '52a942bfd7a0b79a6bfe9b4ce6c9d0ed',
+        'info_dict': {
+            'id': 'CO1211V001S00',
+            'ext': 'mp4',
+            'title': 'Series 1 Ep 1 Wood For The Trees',
+            'series': 'Utopia',
+            'description': 'md5:0cfb2c183c1b952d1548fd65c8a95c00',
+            'upload_date': '20230726',
+            'uploader_id': 'abc1',
+            'series_id': 'CO1211V',
+            'episode_id': 'CO1211V001S00',
+            'season_number': 1,
+            'season': 'Season 1',
+            'episode_number': 1,
+            'episode': 'Wood For The Trees',
+            'thumbnail': 'https://cdn.iview.abc.net.au/thumbs/i/co/CO1211V001S00_5ad8353f4df09_1280.jpg',
+            'timestamp': 1690403700,
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }, {
+        'note': 'No episode name',
         'url': 'https://iview.abc.net.au/show/gruen/series/11/video/LE1927H001S00',
         'md5': '67715ce3c78426b11ba167d875ac6abf',
         'info_dict': {
             'id': 'LE1927H001S00',
             'ext': 'mp4',
-            'title': "Series 11 Ep 1",
+            'title': 'Series 11 Ep 1',
-            'series': "Gruen",
+            'series': 'Gruen',
             'description': 'md5:52cc744ad35045baf6aded2ce7287f67',
             'upload_date': '20190925',
             'uploader_id': 'abc1',
+            'series_id': 'LE1927H',
+            'episode_id': 'LE1927H001S00',
+            'season_number': 11,
+            'season': 'Season 11',
+            'episode_number': 1,
+            'episode': 'Episode 1',
+            'thumbnail': 'https://cdn.iview.abc.net.au/thumbs/i/le/LE1927H001S00_5d954fbd79e25_1280.jpg',
             'timestamp': 1569445289,
         },
+        'expected_warnings': ['Ignoring subtitle tracks found in the HLS manifest'],
+        'params': {
+            'skip_download': True,
+        },
+    }, {
+        'note': 'No episode number',
+        'url': 'https://iview.abc.net.au/show/four-corners/series/2022/video/NC2203H039S00',
+        'md5': '77cb7d8434440e3b28fbebe331c2456a',
+        'info_dict': {
+            'id': 'NC2203H039S00',
+            'ext': 'mp4',
+            'title': 'Series 2022 Locking Up Kids',
+            'series': 'Four Corners',
+            'description': 'md5:54829ca108846d1a70e1fcce2853e720',
+            'upload_date': '20221114',
+            'uploader_id': 'abc1',
+            'series_id': 'NC2203H',
+            'episode_id': 'NC2203H039S00',
+            'season_number': 2022,
+            'season': 'Season 2022',
+            'episode_number': None,
+            'episode': 'Locking Up Kids',
+            'thumbnail': 'https://cdn.iview.abc.net.au/thumbs/i/nc/NC2203H039S00_636d8a0944a22_1920.jpg',
+            'timestamp': 1668460497,
+
+        },
+        'expected_warnings': ['Ignoring subtitle tracks found in the HLS manifest'],
+        'params': {
+            'skip_download': True,
+        },
+    }, {
+        'note': 'No episode name or number',
+        'url': 'https://iview.abc.net.au/show/landline/series/2021/video/RF2004Q043S00',
+        'md5': '2e17dec06b13cc81dc119d2565289396',
+        'info_dict': {
+            'id': 'RF2004Q043S00',
+            'ext': 'mp4',
+            'title': 'Series 2021',
+            'series': 'Landline',
+            'description': 'md5:c9f30d9c0c914a7fd23842f6240be014',
+            'upload_date': '20211205',
+            'uploader_id': 'abc1',
+            'series_id': 'RF2004Q',
+            'episode_id': 'RF2004Q043S00',
+            'season_number': 2021,
+            'season': 'Season 2021',
+            'episode_number': None,
+            'episode': None,
+            'thumbnail': 'https://cdn.iview.abc.net.au/thumbs/i/rf/RF2004Q043S00_61a950639dbc0_1920.jpg',
+            'timestamp': 1638710705,
+
+        },
+        'expected_warnings': ['Ignoring subtitle tracks found in the HLS manifest'],
         'params': {
             'skip_download': True,
         },
@@ -254,6 +338,8 @@ class ABCIViewIE(InfoExtractor):
             'episode_number': int_or_none(self._search_regex(
                 r'\bEp\s+(\d+)\b', title, 'episode number', default=None)),
             'episode_id': house_number,
+            'episode': self._search_regex(
+                r'^(?:Series\s+\d+)?\s*(?:Ep\s+\d+)?\s*(.*)$', title, 'episode', default='') or None,
             'uploader_id': video_params.get('channel'),
             'formats': formats,
             'subtitles': subtitles,