FA-49088 / PCM sample encoding / Member archive
Pcm byte lane shuffle: output width · case 03
Converted sample width is reported as input container width.
Case contract
Repack each fixed-size sample container using an explicit byte-lane map, retain duplicate selections and validate only declared zero-pad lanes.
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 | [[[2, 1], true, 4], [[4, 3], false, 4]] | [[[2, 1], true, 2], [[4, 3], false, 2]] | Failed |
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