[soundcloud] Resolve audio/x-wav
@ -4173,6 +4173,7 @@ def mimetype2ext(mt):
# Per RFC 3003, audio/mpeg can be .mp1, .mp2 or .mp3. Here use .mp3 as
# it's the most popular one
'audio/mpeg': 'mp3',
'audio/x-wav': 'wav',
}.get(mt)
if ext is not None:
return ext