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yading@11: ret: 0         st: 0 flags:0  ts: 0.800000
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yading@11: ret:-1         st: 0 flags:1  ts:-0.320000
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yading@11: ret: 0         st: 0 flags:0  ts: 0.360000
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yading@11: ret:-1         st: 0 flags:1  ts:-0.760000
yading@11: ret:-1         st:-1 flags:0  ts: 2.153336
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yading@11: ret: 0         st: 0 flags:0  ts:-0.040000
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yading@11: ret: 0         st: 0 flags:1  ts: 2.840000
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yading@11: ret: 0         st:-1 flags:0  ts: 1.730004
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yading@11: ret: 0         st: 0 flags:1 dts: 0.400000 pts: NOPTS    pos:  94574 size: 32807
yading@11: ret: 0         st: 0 flags:0  ts:-0.480000
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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: 180946 size: 13326
yading@11: ret: 0         st:-1 flags:1  ts: 0.200839
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yading@11: ret:-1         st:-1 flags:1  ts:-0.222493
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yading@11: ret:-1         st:-1 flags:1  ts:-0.645825