From f01cb57630ef5511829e8c8353e6382b7ec389ca Mon Sep 17 00:00:00 2001
From: Ruowang Sun <sunrw@umich.edu>
Date: Sun, 11 Dec 2022 20:35:11 -0500
Subject: [PATCH] [Callin] Add new extractor

---
 youtube_dl/extractor/callin.py | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/youtube_dl/extractor/callin.py b/youtube_dl/extractor/callin.py
index 4840bb71d..372bf19fe 100644
--- a/youtube_dl/extractor/callin.py
+++ b/youtube_dl/extractor/callin.py
@@ -5,8 +5,10 @@ from .common import InfoExtractor
 from ..utils import (
     ExtractorError,
     traverse_obj,
+    try_get,
 )
 
+
 class CallinIE(InfoExtractor):
     _VALID_URL = r'https?://(?:www\.)?callin\.com/episode/(?:[^/#?-]+-)*(?P<id>[^/#?-]+)'
     _TESTS = [{
@@ -39,31 +41,29 @@ class CallinIE(InfoExtractor):
     def _real_extract(self, url):
         video_id = self._match_id(url)
         webpage = self._download_webpage(url, video_id)
-        # webpage_json = self._download_json(url, video_id)
 
         next_data = self._search_nextjs_data(webpage, video_id)
         valid = traverse_obj(next_data, ('props', 'pageProps', 'episode'))
         if not valid:
             raise ExtractorError('Failed to find m3u8')
-        
-        episode = self._search_nextjs_data(webpage, video_id)['props']['pageProps']['episode']
+
+        episode = try_get(next_data, lambda x: x['props']['pageProps']['episode'], dict)
         title = episode.get('title')
         if not title:
             title = self._og_search_title(webpage)
         description = episode.get('description')
         if not description:
             description = self._og_search_description(webpage)
-        
+
         formats = []
         m3u8_url = episode.get('m3u8')
         if m3u8_url:
             formats.extend(self._extract_m3u8_formats(
                 m3u8_url, video_id, 'mp4', fatal=False))
-        # self._sort_formats(formats)       
 
         return {
             'id': video_id,
             'title': title,
             'description': description,
             'formats': formats,
-        }
\ No newline at end of file
+        }