FA-49207 / PCM sample encoding / Member archive
Pcm payload valid prefix: tail canonical · case 02
One zero pad sample hides nonzero contamination.
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 | [[[1, 2], 2, true], [[1, 2], 2, true]] | [[[1, 2], 2, true], [[1, 2], 2, false]] | Failed |
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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
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