Simplify formats accumulation for f4m/m3u8/smil formats

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

diff --git a/youtube_dl/extractor/vimeo.py b/youtube_dl/extractor/vimeo.py
index ce08e69559370c1fed3e393cee729fdac40119e6..7af6999821dd569e4984b79559708ef5320d545e 100644 (file)
--- a/youtube_dl/extractor/vimeo.py
+++ b/youtube_dl/extractor/vimeo.py
@@ -437,10 +437,8 @@ class VimeoIE(VimeoBaseInfoExtractor):
             })
         m3u8_url = config_files.get('hls', {}).get('url')
         if m3u8_url:
-            m3u8_formats = self._extract_m3u8_formats(
-                m3u8_url, video_id, 'mp4', 'm3u8_native', m3u8_id='hls', fatal=False)
-            if m3u8_formats:
-                formats.extend(m3u8_formats)
+            formats.extend(self._extract_m3u8_formats(
+                m3u8_url, video_id, 'mp4', 'm3u8_native', m3u8_id='hls', fatal=False))
         # Bitrates are completely broken. Single m3u8 may contain entries in kbps and bps
         # at the same time without actual units specified. This lead to wrong sorting.
         self._sort_formats(formats, field_preference=('preference', 'height', 'width', 'fps', 'format_id'))