FA-49214 / PCM sample encoding / Member archive
Pcm payload valid prefix: payload prefix · case 04
Valid samples are taken from the slot tail instead of its prefix.
Case contract
Decode a stipulated fixed-capacity PCM slot whose declared valid prefix is clamped to physical storage; verify zero padding only inside the slot.
Why this case matters
Offline PCM interchange uses these exact bounded packet and sample representation decisions.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| oracle 1 | [[[0, 0], 2, true], [[0, 9], 2, false]] | [[[1, 2], 2, true], [[1, 2], 2, false]] | Failed |
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