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#!/usr/bin/env python
'''
work out total flight time for a mavlink log
'''
import sys, time, os
# allow import from the parent directory, where mavlink.py is
sys.path.insert(0, os.path.join(os.path.dirname(os.path.realpath(__file__)), '..'))
from optparse import OptionParser
parser = OptionParser("flighttime.py [options]")
parser.add_option("--mav10", action='store_true', default=False, help="Use MAVLink protocol 1.0")
(opts, args) = parser.parse_args()
if opts.mav10:
os.environ['MAVLINK10'] = '1'
import mavutil
if len(args) < 1:
print("Usage: flighttime.py [options] <LOGFILE...>")
sys.exit(1)
def flight_time(logfile):
'''work out flight time for a log file'''
print("Processing log %s" % filename)
mlog = mavutil.mavlink_connection(filename)
in_air = False
start_time = 0.0
total_time = 0.0
t = None
while True:
m = mlog.recv_match(type='VFR_HUD')
if m is None:
if in_air:
total_time += time.mktime(t) - start_time
if total_time > 0:
print("Flight time : %u:%02u" % (int(total_time)/60, int(total_time)%60))
return total_time
t = time.localtime(m._timestamp)
if m.groundspeed > 3.0 and not in_air:
print("In air at %s" % time.asctime(t))
in_air = True
start_time = time.mktime(t)
elif m.groundspeed < 3.0 and in_air:
print("On ground at %s" % time.asctime(t))
in_air = False
total_time += time.mktime(t) - start_time
return total_time
total = 0.0
for filename in args:
total += flight_time(filename)
print("Total time in air: %u:%02u" % (int(total)/60, int(total)%60))
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