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yading@11: ret: 0         st:-1 flags:1  ts: 1.894167
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yading@11: ret: 0         st: 0 flags:0  ts: 0.788334
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yading@11: ret:-1         st: 0 flags:1  ts:-0.317499
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yading@11: ret: 0         st: 0 flags:0  ts: 0.365002
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yading@11: ret:-1         st: 0 flags:1  ts:-0.740831
yading@11: ret:-1         st:-1 flags:0  ts: 2.153336
yading@11: ret: 0         st:-1 flags:1  ts: 1.047503
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yading@11: ret: 0         st: 0 flags:0  ts:-0.058330
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yading@11: ret: 0         st: 0 flags:1  ts: 2.835837
yading@11: ret: 0         st: 0 flags:1 dts: 1.840000 pts: NOPTS    pos: 227500 size: 12725
yading@11: ret: 0         st:-1 flags:0  ts: 1.730004
yading@11: ret: 0         st: 0 flags:1 dts: 1.840000 pts: NOPTS    pos: 227500 size: 12725
yading@11: ret: 0         st:-1 flags:1  ts: 0.624171
yading@11: ret: 0         st: 0 flags:1 dts: 0.400000 pts: NOPTS    pos:  98748 size: 29165
yading@11: ret: 0         st: 0 flags:0  ts:-0.481662
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yading@11: ret: 0         st:-1 flags:0  ts: 1.306672
yading@11: ret: 0         st: 0 flags:1 dts: 1.360000 pts: NOPTS    pos: 196681 size: 13159
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yading@11: ret:-1         st:-1 flags:1  ts:-0.222493
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yading@11: ret: 0         st:-1 flags:0  ts: 0.460008
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yading@11: ret:-1         st:-1 flags:1  ts:-0.645825