[zhihu] Add new extractor(closes #28177)

youtube_dl/extractor/extractors.py

@@ -1603,5 +1603,6 @@ from .zattoo import (
     ZattooLiveIE,
 )
 from .zdf import ZDFIE, ZDFChannelIE
+from .zhihu import ZhihuIE
 from .zingmp3 import ZingMp3IE
 from .zype import ZypeIE

youtube_dl/extractor/zhihu.py

@@ -0,0 +1,69 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+from .common import InfoExtractor
+from ..utils import float_or_none, int_or_none
+
+
+class ZhihuIE(InfoExtractor):
+    _VALID_URL = r'https?://(?:www\.)?zhihu\.com/zvideo/(?P<id>[0-9]+)'
+    _TEST = {
+        'url': 'https://www.zhihu.com/zvideo/1342930761977176064',
+        'md5': 'c8d4c9cd72dd58e6f9bc9c2c84266464',
+        'info_dict': {
+            'id': '1342930761977176064',
+            'ext': 'mp4',
+            'title': '写春联也太难了吧！',
+            'thumbnail': r're:^https?://.*\.jpg',
+            'uploader': '桥半舫',
+            'timestamp': 1612959715,
+            'upload_date': '20210210',
+            'uploader_id': '244ecb13b0fd7daf92235288c8ca3365',
+            'duration': 146.333,
+            'view_count': int,
+            'like_count': int,
+            'comment_count': int,
+        }
+    }
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        zvideo = self._download_json(
+            'https://www.zhihu.com/api/v4/zvideos/' + video_id, video_id)
+        title = zvideo['title']
+        video = zvideo.get('video') or {}
+
+        formats = []
+        for format_id, q in (video.get('playlist') or {}).items():
+            play_url = q.get('url') or q.get('play_url')
+            if not play_url:
+                continue
+            formats.append({
+                'asr': int_or_none(q.get('sample_rate')),
+                'filesize': int_or_none(q.get('size')),
+                'format_id': format_id,
+                'fps': int_or_none(q.get('fps')),
+                'height': int_or_none(q.get('height')),
+                'tbr': float_or_none(q.get('bitrate')),
+                'url': play_url,
+                'width': int_or_none(q.get('width')),
+            })
+        self._sort_formats(formats)
+
+        author = zvideo.get('author') or {}
+        url_token = author.get('url_token')
+
+        return {
+            'id': video_id,
+            'title': title,
+            'formats': formats,
+            'thumbnail': video.get('thumbnail') or zvideo.get('image_url'),
+            'uploader': author.get('name'),
+            'timestamp': int_or_none(zvideo.get('published_at')),
+            'uploader_id': author.get('id'),
+            'uploader_url': 'https://www.zhihu.com/people/' + url_token if url_token else None,
+            'duration': float_or_none(video.get('duration')),
+            'view_count': int_or_none(zvideo.get('play_count')),
+            'like_count': int_or_none(zvideo.get('liked_count')),
+            'comment_count': int_or_none(zvideo.get('comment_count')),
+        }