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Martin Kaiser changed bug 11338

What	Removed	Added
CC		wireshark@kaiser.cx

Comment # 7 on bug 11338 from Martin Kaiser

(In reply to Tyson Key from comment #5)
> Created attachment 13711 [details]
> Another trace file containing a payload from a different encoder, Windows
> Media Player, and UPMPDCLI
> 
> Unsure if it's the iTunes MPEG-4/AAC encoder, or a bug in the control point,
> renderer, or server (or a bug in the dissector, or reassembly routines), but
> it seems that the MPEG-4 payload in the last trace file doesn't get
> dissected, despite being identified as audio/mp4.
> 
> This new trace should properly exercise this addition, hopefully.

The MP4 dissector rejects the packet if it doesn't start with a known box type.
The first box is a "gnre' box. I didn't know about this type as I only checked
the ISOBMFF documents.

It appears in the list at

http://www.mp4ra.org/atoms.html

If I add this box type, the MP4 packet is recognized. However, the remaining
boxes don't line up nicely. 

According to http://xhelmboyx.tripod.com/formats/mp4-layout.txt

Apple defined some boxes whose name starts with 0xa9, followed by three
letters...

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