Renderer crash with assert for OMASA to MONO (renderBufferChannelLerp_fx)

Basic info

• Float reference:
  • Renderer (float): f40fa467
• Fixed point:
  • Renderer (fixed): ced61be1

Bug description

Rendering an OMASA item defined using the META input crashes with an assert error

IVAS_rend: lib_com/basop32.c:1742: L_sub: Assertion `0' failed.

Stack:

L_sub basop32.c:1742
L_sub basop32.c:1742
renderBufferChannelLerp_fx lib_rend_fx.c:4633
renderIsmToMc lib_rend_fx.c:5402
renderInputIsm lib_rend_fx.c:5624
renderActiveInputsIsm lib_rend_fx.c:5691
getSamplesInternal lib_rend_fx.c:7343
IVAS_REND_GetSamples lib_rend_fx.c:7384
main renderer.c:1491

Ways to reproduce

IVAS_rend -q -if meta -i scripts/testv/stvOMASA_3ISM_2MASA2TC32c.txt -fs 32 -of MONO -o 0193_stvOMASA_3ISM_2MASA2TC32c.wav_MONO.wav

The file stvOMASA_3ISM_2MASA2TC32c.txt has the content

stvOMASA_3ISM_2MASA2TC32c.wav
4
ISM
1
stvOMASA_3ISM_2MASA1TC48c_ISM1.csv
ISM
2
stvOMASA_3ISM_2MASA1TC48c_ISM2.csv
ISM
3
stvOMASA_3ISM_2MASA1TC48c_ISM3.csv
MASA
4
2
stvOMASA_3ISM_2MASA1TC48c.met

and should be placed where STVs are (scripts/testv/).