.h5 data files and MPJPE calculation

[dmst65]

Hello,
First, thank you for a great database, code files and instructions to work with.
I try to reproduce the results from the paper, and I have several questions about things that I quite didn’t understand.
(I have little experience with Deep Learning and working with python, so excuse me if my quotations are silly):

1. I used the MATLAB files provided in the repo to generate the h5 files.
   For each move (in each section) there are 2 files, for example:
   "S12_session5_mov4_7500events.h5"
   "S12_session5_mov4_7500events_label.h5"

What information each file represents?

2. What is the exact data the provided DHP_CNN.model process?
   I mean, after I generated the h5 files, what are the next steps I need to perform in order to use the DHP_CNN.model and calculate the MPJPE?

3. How do I need to perform the calculation of the MPJPE considering I have number of frames?

Thank you for your help,
Michael