[utils] Improve mimetype2ext

[youtube-dl] / youtube_dl / utils.py

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 1091f17f32d3e8ba86b1a0c468e1564c8199e3f2..904f23fd7747f5fd1957ab268713513da1526d5c 100644 (file)
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -2148,7 +2148,7 @@ def mimetype2ext(mt):
         return ext
 
     _, _, res = mt.rpartition('/')
-    res = res.lower()
+    res = res.split(';')[0].strip().lower()
 
     return {
         '3gpp': '3gp',