X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/cb32b5fcf6f680ea9caf47919b33779491b79038..d9bd2d488401884d00ee455f2a161a5011f7457d:/youtube_dl/extractor/imdb.py

diff --git a/youtube_dl/extractor/imdb.py b/youtube_dl/extractor/imdb.py
index 4bafa54..436759d 100644
--- a/youtube_dl/extractor/imdb.py
+++ b/youtube_dl/extractor/imdb.py
@@ -3,12 +3,12 @@ from __future__ import unicode_literals
 import re
 
 from .common import InfoExtractor
-from ..compat import compat_str
 from ..utils import (
     determine_ext,
     mimetype2ext,
     parse_duration,
     qualities,
+    url_or_none,
 )
 
 
@@ -61,10 +61,11 @@ class ImdbIE(InfoExtractor):
         for encoding in video_metadata.get('encodings', []):
             if not encoding or not isinstance(encoding, dict):
                 continue
-            video_url = encoding.get('videoUrl')
-            if not video_url or not isinstance(video_url, compat_str):
+            video_url = url_or_none(encoding.get('videoUrl'))
+            if not video_url:
                 continue
-            ext = determine_ext(video_url, mimetype2ext(encoding.get('mimeType')))
+            ext = mimetype2ext(encoding.get(
+                'mimeType')) or determine_ext(video_url)
             if ext == 'm3u8':
                 formats.extend(self._extract_m3u8_formats(
                     video_url, video_id, 'mp4', entry_protocol='m3u8_native',