Change #275174

Comments

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.

Changed files

• libavcodec/aaccoder.c