FA-49357 / PCM sample encoding / Member archive
Pcm channel predictor: residual shape · case 02
PCM packet boundaries disappear when residual frames are flattened.
Case contract
Encode frame-major PCM residuals with independent per-channel amplitude predictors and frame-index resets; preserve residual frame shape.
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 | [[3, 2, 2, -1], [7, 9]] | [[[3, 2], [2, -1]], [7, 9]] | Failed |
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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
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