start_frame,end_frame,start_time,end_time,label,duration
0.0,49.125,19:20:49.000,19:21:38.125,0,49.125
49.125,50.75,19:21:38.125,19:21:39.750,1,1.625
50.75,101.75,19:21:39.750,19:22:30.750,0,51.0
101.75,102.0,19:22:30.750,19:22:31.000,1,0.25