FA-49175 / PCM sample encoding / Member archive

Pcm frame sequence: gap threshold · case 05

The ambiguous half-cycle packet is accepted as a forward gap.

Member previewVariant 5 · 3 implementations · 8 checks per implementation

Case contract

Bounded PCM packet sequence adapter with one null marker per lost packet (not per lost sample); reject old or half-cycle-ambiguous packets and retain modular cursor.

Why this case matters

Offline PCM interchange uses these exact bounded packet and sample representation decisions.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
oracle 3	`[[null, null, null, null, 9, null, null, null, 2], 1]`	`[[2], 1]`	Failed

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