FA-11270 / Media timeline seeking / Member archive

Timestamp wrap unroll nearest forward · case 05

A wrapped media counter is treated as an absolute time and jumps backward.

Member previewVariant 5 · 3 implementations · 4 checks per implementation

Case contract

For monotonic sample delivery with less than one wrap between observations, map raw counter in [0,modulus) to the smallest timestamp >=last with that residue.

Why this case matters

A deterministic local media controller stage; metadata and downloaded data are supplied explicitly. No external player, service or codec is required.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
fixture 1	`1`	`17`	Failed

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