[youtube] Fix extraction.

[youtube-dl] / youtube_dl / extractor / yapfiles.py

diff --git a/youtube_dl/extractor/yapfiles.py b/youtube_dl/extractor/yapfiles.py
index 7fafbf5969a26f8ce9f911cdd14714a7cb33bc0e..cfb368de94eca516af432f52ecf3e31744b9f984 100644 (file)
--- a/youtube_dl/extractor/yapfiles.py
+++ b/youtube_dl/extractor/yapfiles.py
@@ -4,12 +4,12 @@ from __future__ import unicode_literals
 import re
 
 from .common import InfoExtractor
-from ..compat import compat_str
 from ..utils import (
     ExtractorError,
     int_or_none,
     qualities,
     unescapeHTML,
+    url_or_none,
 )
 
 
@@ -80,9 +80,9 @@ class YapFilesIE(InfoExtractor):
         formats = []
         for format_id in QUALITIES:
             is_hd = format_id == 'hd'
-            format_url = playlist.get(
-                'file%s' % ('_hd' if is_hd else ''))
-            if not format_url or not isinstance(format_url, compat_str):
+            format_url = url_or_none(playlist.get(
+                'file%s' % ('_hd' if is_hd else '')))
+            if not format_url:
                 continue
             formats.append({
                 'url': format_url,