Lynne abe157fbf2 avcodec/aaccoder: widen PNS candidacy to near-masked bands ...

Bands whose energy sits between threshold/4 and 2x threshold are
deletion candidates for the trellis: coded, they round to silence under
pressure, and an audible hole is worse than energy-matched noise. Let
them qualify for PNS with a relaxed uniformity requirement, so the
noise substitution keeps the texture the allocator was about to delete.

2026-07-19 20:41:52 +08:00

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