[extractor/common] Make f4m extraction for SMIL non fatal

diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index c2aa3a7495d2591ac6b2a50dfd19702a4a633283..4fe2307cdd42b9187d86940c2628b2648fc97d7b 100644 (file)
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -1152,7 +1152,9 @@ class InfoExtractor(object):
                     }
                 f4m_url += '&' if '?' in f4m_url else '?'
                 f4m_url += compat_urllib_parse.urlencode(f4m_params)
-                formats.extend(self._extract_f4m_formats(f4m_url, video_id, f4m_id='hds'))
+                f4m_formats = self._extract_f4m_formats(f4m_url, video_id, f4m_id='hds', fatal=False)
+                if f4m_formats:
+                    formats.extend(f4m_formats)
                 continue
 
             if src_url.startswith('http') and self._is_valid_url(src, video_id):