[tasks]
tasknum=3
[tasks/task0]
type=pre_tracking
time_mode=TM_ALL_PRE
[tasks/task1]
type=fetch_mask
time_mode=TM_ALL_POST_REWIND
chan_mode=0
mask=0
label=1
[tasks/task2]
type=post_tracking
time_mode=TM_ALL_POST