frame:0    pts:0       pts_time:0
lavfi.siti.si=106.72
lavfi.siti.ti=0.00
frame:1    pts:1       pts_time:1
lavfi.siti.si=109.40
lavfi.siti.ti=28.00
frame:2    pts:2       pts_time:2
lavfi.siti.si=109.29
lavfi.siti.ti=28.38
frame:3    pts:3       pts_time:3
lavfi.siti.si=113.27
lavfi.siti.ti=33.42
frame:4    pts:4       pts_time:4
lavfi.siti.si=110.87
lavfi.siti.ti=30.53