ISM1, core classifier

Basic info

• Float reference:
  • Encoder (float): d3f01fcf (Thu Apr 24 11:42:19)
  • Decoder (float): d3f01fcf (Thu Apr 24 11:42:19)
• Fixed point:
  • Encoder (fixed): 5156ee35 (Wed May 7 03:59:26)

Bug description

The core classifier sometimes differ. In this case there is a missed ACELP frame which leads to a pre-echo artifact. I don't think this really needs to be addressed by Ittiam, but I wanted to file it to see if @malenovsky and @vaillancour had observed more such issues.

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1576

IVAS_cod_ref -ism 1 NULL 16400 48 s279_48kHz.wav ref.192
IVAS_dec_ref EXT 48 ref.192 ref1.wav

IVAS_cod -ism 1 NULL 16400 48 s279_48kHz.wav cut.192
IVAS_dec_ref EXT 48 cut.192 out1.wav