Merge pull request #1622 from rbrito/fix-extension

extractor: youtube: Set extension of AAC audio formats to m4a.

diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index a88cba2b4d74d2f57d0b781ab8e608e693c1caa2..7a7bbe26511436e8fae54f6f07ed5a3f741d48ba 100644 (file)
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -236,11 +236,13 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
         '136': 'mp4',
         '137': 'mp4',
         '138': 'mp4',
-        '139': 'mp4',
-        '140': 'mp4',
-        '141': 'mp4',
         '160': 'mp4',
 
+        # Dash mp4 audio
+        '139': 'm4a',
+        '140': 'm4a',
+        '141': 'm4a',
+
         # Dash webm
         '171': 'webm',
         '172': 'webm',