ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.400000 pts: NOPTS pos: 30747 size: 10045
ret: 0 st: 0 flags:0 ts:-0.481662
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 0 size: 9961
ret: 0 st: 0 flags:1 ts: 2.412505
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.400000 pts: NOPTS pos: 30747 size: 10045
ret: 0 st: 0 flags:0 ts:-0.481662
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 0 size: 9961
ret: 0 st: 0 flags:1 ts: 2.412505