[regression] BASOP encoder crashes in ivas_smc_gmm_fx with MASA LTV input

Basic info

• Fixed point:
  • Encoder (fixed): b5d31923

Bug description

There is crash in BASOP encoder for MASA LTV input.

Ways to reproduce

IVAS_cod -masa 2 ltv48_MASA2TC.met -max_band swb 48000 48 ltv48_MASA2TC.wav test_0056.bs