ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 1 flags:1 dts: 0.989089 pts: 0.989089 pos: 2048 size: 208
ret: 0 st: 0 flags:0 ts:-0.481667
ret: 0 st: 1 flags:1 dts: 0.989089 pts: 0.989089 pos: 2048 size: 208
ret: 0 st: 0 flags:1 ts: 2.412500
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 1 flags:1 dts: 0.989089 pts: 0.989089 pos: 2048 size: 208
ret: 0 st: 0 flags:0 ts:-0.481667
ret: 0 st: 1 flags:1 dts: 0.989089 pts: 0.989089 pos: 2048 size: 208
ret: 0 st: 0 flags:1 ts: 2.412500