What is the format of GPS Data?

What is contained in the unsigned gpsdata[32];?

How do I interpret the numbers? Is there any documentation related to this?

Here is an example -

GPS:32
GPS:1
GPS:112393
GPS:10000
GPS:0
GPS:1
GPS:104
GPS:1
GPS:253126
GPS:10000
GPS:0
GPS:1
GPS:18
GPS:1
GPS:35
GPS:1
GPS:4800
GPS:100
GPS:1204
GPS:1
GPS:538976288
GPS:538976288
GPS:32
GPS:875638834
GPS:976302138
GPS:13361
GPS:0
GPS:0
GPS:0
GPS:78
GPS:87
GPS:0

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gpsdata is just dump of TIFF

gpsdata is just dump of TIFF(EXIF) sub-IFD structure.

-- Alex Tutubalin @LibRaw LLC