Simplify formats accumulation for f4m/m3u8/smil formats

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

diff --git a/youtube_dl/extractor/dcn.py b/youtube_dl/extractor/dcn.py
index 0d140f12fd8ea81d1c486f470bd4f83a2edf82d9..8f48571de2717fec01c4b574a2454cac7f5738c6 100644 (file)
--- a/youtube_dl/extractor/dcn.py
+++ b/youtube_dl/extractor/dcn.py
@@ -56,10 +56,8 @@ class DCNBaseIE(InfoExtractor):
         m3u8_url = self._html_search_regex(
             r'file\s*:\s*"([^"]+)', webpage, 'm3u8 url', fatal=False)
         if m3u8_url:
-            m3u8_formats = self._extract_m3u8_formats(
-                m3u8_url, video_id, 'mp4', entry_protocol, m3u8_id='hls', fatal=None)
-            if m3u8_formats:
-                formats.extend(m3u8_formats)
+            formats.extend(self._extract_m3u8_formats(
+                m3u8_url, video_id, 'mp4', entry_protocol, m3u8_id='hls', fatal=None))
 
         rtsp_url = self._search_regex(
             r'<a[^>]+href="(rtsp://[^"]+)"', webpage, 'rtsp url', fatal=False)