Condition missing for IVAS GSC gain de-quantization when compared to floating point

Basic info

  • Float reference:
    • Encoder (float):
    • Decoder (float):
  • Fixed point:
    • Encoder (fixed): a0051869
    • Decoder (fixed): a0051869

Bug description

A condition is missing when decoding GSC gains in IVAS fix-point. This can cause quality degradation for the lowest bit rate of the GSC and can cause inter-operability issues with when the encoder is float and the decoder is fixed point.

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-xxxx

Edited Jan 09, 2026 by vaillancour
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