PlayEvent.py

#!/usr/bin/env python3

import os
import struct
import sys
from datetime import datetime

# https://github.com/switchbrew/libnx/blob/master/nx/include/switch/services/pdm.h#L78
with open('PlayEvent.dat', 'rb') as fin:
	magic = struct.unpack('i', fin.read(4))[0]
	if magic != 0:
		print('Not a valid PlayEvent file', file=sys.stderr)
		sys.exit(1)
	
	number_of_entry = struct.unpack('I', fin.read(4))[0]
	for i in range(0, number_of_entry):
		event_data = fin.read(0x1c)
		event_type = struct.unpack('B', fin.read(1))[0]
		fin.read(3) # padding
		
		timestamp_user = struct.unpack('Q', fin.read(8))[0]
		timestamp_network = struct.unpack('Q', fin.read(8))[0]
		timestamp_steady = struct.unpack('Q', fin.read(8))[0]
		
		if event_type == 0:
			title_id = []
			title_id.append(struct.unpack('I', event_data[0x0:0x4])[0])
			title_id.append(struct.unpack('I', event_data[0x4:0x8])[0])
			
			applet_id = event_data[0xc]
			storage_id = event_data[0xd]
			log_policy = event_data[0xe]
			event_type = event_data[0xf]
			
			version = None
			if applet_id == 1:
				version = struct.unpack('I', event_data[0x8:0xC])[0]
		
			print('%08x %d %s %08x%08x %s %d %d %d %d' % (fin.tell() - 0x38, event_type, datetime.fromtimestamp(timestamp_user), title_id[0], title_id[1], str(version) if version is not None else '', applet_id, storage_id, log_policy, event_type))