@ -1828,11 +1828,11 @@ def mimetype2ext(mt):
_, _, res = mt.rpartition('/')
return {
'x-ms-wmv': 'wmv',
'x-mp4-fragmented': 'mp4',
'ttml+xml': 'ttml',
'3gpp': '3gp',
'x-flv': 'flv',
}.get(res, res)