[ie/parti] Add extractors (#12769)

Closes #11434
Authored by: benfaerber

2 files changed, 105 insertions, 0 deletions

diff --git a/yt_dlp/extractor/_extractors.py b/yt_dlp/extractor/_extractors.py
index 9fc891365..a206a38e4 100644
--- a/yt_dlp/extractor/_extractors.py
+++ b/yt_dlp/extractor/_extractors.py
@@ -1493,6 +1493,10 @@ from .paramountplus import (
 )
 from .parler import ParlerIE
 from .parlview import ParlviewIE
+from .parti import (
+    PartiLivestreamIE,
+    PartiVideoIE,
+)
 from .patreon import (
     PatreonCampaignIE,
     PatreonIE,
diff --git a/yt_dlp/extractor/parti.py b/yt_dlp/extractor/parti.py
new file mode 100644
index 000000000..acadefc4e
--- /dev/null
+++ b/yt_dlp/extractor/parti.py
@@ -0,0 +1,101 @@
+from .common import InfoExtractor
+from ..utils import UserNotLive, int_or_none, parse_iso8601, url_or_none, urljoin
+from ..utils.traversal import traverse_obj
+
+
+class PartiBaseIE(InfoExtractor):
+    def _call_api(self, path, video_id, note=None):
+        return self._download_json(
+            f'https://api-backend.parti.com/parti_v2/profile/{path}', video_id, note)
+
+
+class PartiVideoIE(PartiBaseIE):
+    IE_NAME = 'parti:video'
+    _VALID_URL = r'https?://(?:www\.)?parti\.com/video/(?P<id>\d+)'
+    _TESTS = [{
+        'url': 'https://parti.com/video/66284',
+        'info_dict': {
+            'id': '66284',
+            'ext': 'mp4',
+            'title': 'NOW LIVE ',
+            'upload_date': '20250327',
+            'categories': ['Gaming'],
+            'thumbnail': 'https://assets.parti.com/351424_eb9e5250-2821-484a-9c5f-ca99aa666c87.png',
+            'channel': 'ItZTMGG',
+            'timestamp': 1743044379,
+        },
+        'params': {'skip_download': 'm3u8'},
+    }]
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        data = self._call_api(f'get_livestream_channel_info/recent/{video_id}', video_id)
+
+        return {
+            'id': video_id,
+            'formats': self._extract_m3u8_formats(
+                urljoin('https://watch.parti.com', data['livestream_recording']), video_id, 'mp4'),
+            **traverse_obj(data, {
+                'title': ('event_title', {str}),
+                'channel': ('user_name', {str}),
+                'thumbnail': ('event_file', {url_or_none}),
+                'categories': ('category_name', {str}, filter, all),
+                'timestamp': ('event_start_ts', {int_or_none}),
+            }),
+        }
+
+
+class PartiLivestreamIE(PartiBaseIE):
+    IE_NAME = 'parti:livestream'
+    _VALID_URL = r'https?://(?:www\.)?parti\.com/creator/(?P<service>[\w]+)/(?P<id>[\w/-]+)'
+    _TESTS = [{
+        'url': 'https://parti.com/creator/parti/Capt_Robs_Adventures',
+        'info_dict': {
+            'id': 'Capt_Robs_Adventures',
+            'ext': 'mp4',
+            'title': r"re:I'm Live on Parti \d{4}-\d{2}-\d{2} \d{2}:\d{2}",
+            'view_count': int,
+            'thumbnail': r're:https://assets\.parti\.com/.+\.png',
+            'timestamp': 1743879776,
+            'upload_date': '20250405',
+            'live_status': 'is_live',
+        },
+        'params': {'skip_download': 'm3u8'},
+    }, {
+        'url': 'https://parti.com/creator/discord/sazboxgaming/0',
+        'only_matching': True,
+    }]
+
+    def _real_extract(self, url):
+        service, creator_slug = self._match_valid_url(url).group('service', 'id')
+
+        encoded_creator_slug = creator_slug.replace('/', '%23')
+        creator_id = self._call_api(
+            f'get_user_by_social_media/{service}/{encoded_creator_slug}',
+            creator_slug, note='Fetching user ID')
+
+        data = self._call_api(
+            f'get_livestream_channel_info/{creator_id}', creator_id,
+            note='Fetching user profile feed')['channel_info']
+
+        if not traverse_obj(data, ('channel', 'is_live', {bool})):
+            raise UserNotLive(video_id=creator_id)
+
+        channel_info = data['channel']
+
+        return {
+            'id': creator_slug,
+            'formats': self._extract_m3u8_formats(
+                channel_info['playback_url'], creator_slug, live=True, query={
+                    'token': channel_info['playback_auth_token'],
+                    'player_version': '1.17.0',
+                }),
+            'is_live': True,
+            **traverse_obj(data, {
+                'title': ('livestream_event_info', 'event_name', {str}),
+                'description': ('livestream_event_info', 'event_description', {str}),
+                'thumbnail': ('livestream_event_info', 'livestream_preview_file', {url_or_none}),
+                'timestamp': ('stream', 'start_time', {parse_iso8601}),
+                'view_count': ('stream', 'viewer_count', {int_or_none}),
+            }),
+        }