Sending Wrong Mime Type for m4a files (Maybe?)

[GlitchyPie]

Okay, I'm trying to stream my Itunes Library to my PS3, most of my files are m4a files (AAC Low Complexity) with a few mp3s. When I try and play the AAC files I just get noise, and if I look at the info the PS3 gives about the file the codec is given as LPCM

e.g. browsing for an AAC through:
"ITunes Library -> Music -> Browse By Artist -> Caro Emerald -> All Audio Tracks -> That Man"
The codec the PS3 gives is "Linear PCM 23bit 2ch" and if I try playing it I just get noise...

However if I try the same with an mp3:
"ITunes Library -> Music -> Browse By Artist -> Chain Algorithm -> All Audio Tracks -> Beautiful Blue Wings"
The codec the PS3 gives is "MP3 2048 kbps" and it plays fine....

As far as I can tell the m4a codec is being recognised as supported by UMS:

Code: Select all

TRACE 2016-02-18 19:45:46.977 [New I/O worker #13] Matched support line f:aac     a:(?!alac).+   n:2             m:audio/x-m4a
TRACE 2016-02-18 19:45:46.977 [New I/O worker #13] File "That Man" will be sent with MIME type "audio/x-m4a"

But doesn't seem to be actually transmitted as such so the PS3 is trying to play raw AAC data as LPCM and well, that just plain doesn't work.

Any help getting to the root of this would be appreciated.


p.s. Hope I attached the log files correctly, this is very easily reproduced so if I have messed up I'll try again.