[extractor/discogs] Add extractor (#6624)

Authored by: rjy

yt_dlp/extractor/_extractors.py

@@ -520,6 +520,7 @@
     DeuxMNewsIE
 )
 from .digitalconcerthall import DigitalConcertHallIE
+from .discogs import DiscogsReleasePlaylistIE
 from .discovery import DiscoveryIE
 from .disney import DisneyIE
 from .dispeak import DigitallySpeakingIE

yt_dlp/extractor/discogs.py

@@ -0,0 +1,35 @@
+from .common import InfoExtractor
+from .youtube import YoutubeIE
+from ..utils import traverse_obj
+
+
+class DiscogsReleasePlaylistIE(InfoExtractor):
+    _VALID_URL = r'https?://(?:www\.)?discogs\.com/(?P<type>release|master)/(?P<id>\d+)'
+    _TESTS = [{
+        'url': 'https://www.discogs.com/release/1-The-Persuader-Stockholm',
+        'info_dict': {
+            'id': 'release1',
+            'title': 'Stockholm',
+        },
+        'playlist_mincount': 7,
+    }, {
+        'url': 'https://www.discogs.com/master/113-Vince-Watson-Moments-In-Time',
+        'info_dict': {
+            'id': 'master113',
+            'title': 'Moments In Time',
+        },
+        'playlist_mincount': 53,
+    }]
+
+    def _real_extract(self, url):
+        playlist_id, playlist_type = self._match_valid_url(url).group('id', 'type')
+
+        display_id = f'{playlist_type}{playlist_id}'
+        response = self._download_json(
+            f'https://api.discogs.com/{playlist_type}s/{playlist_id}', display_id)
+
+        entries = [
+            self.url_result(video['uri'], YoutubeIE, video_title=video.get('title'))
+            for video in traverse_obj(response, ('videos', lambda _, v: YoutubeIE.suitable(v['uri'])))]
+
+        return self.playlist_result(entries, display_id, response.get('title'))