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ret: 0         st:-1 flags:0  ts:-1.000000
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ret: 0         st:-1 flags:1  ts: 1.894167
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ret: 0         st: 0 flags:0  ts: 0.800000
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ret:-1         st: 0 flags:1  ts:-0.320000
ret:-1         st:-1 flags:0  ts: 2.576668
ret: 0         st:-1 flags:1  ts: 1.470835
ret: 0         st: 0 flags:1 dts: 1.480000 pts: 1.480000 pos:3527724 size: 95724
ret: 0         st: 0 flags:0  ts: 0.360000
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ret:-1         st: 0 flags:1  ts:-0.760000
ret:-1         st:-1 flags:0  ts: 2.153336
ret: 0         st:-1 flags:1  ts: 1.047503
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ret: 0         st: 0 flags:0  ts:-0.040000
ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5648 size: 96069
ret: 0         st: 0 flags:1  ts: 2.840000
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ret: 0         st:-1 flags:0  ts: 1.730004
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ret: 0         st: 0 flags:0  ts:-0.480000
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ret: 0         st: 0 flags:1  ts: 2.400000
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ret: 0         st:-1 flags:0  ts: 1.306672
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ret: 0         st:-1 flags:1  ts: 0.200839
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ret: 0         st: 0 flags:1  ts: 2.000000
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ret:-1         st:-1 flags:1  ts:-0.222493
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ret:-1         st:-1 flags:1  ts:-0.645825