Decoder crash for Stereo at 96kbps FER in IGF_appl_ivas()
The fixed point decoder crashes with an assert in `basop32.c:1786`: ``` Frames processed: 2303 Assertion failed: (0), function L_add, file basop32.c, line 1786. ``` ![grafik](/uploads/d8ad8d800f1f5a32f083b6d6cfb2e68d/grafik.png) ![grafik](/uploads/a961c765f359776db6b757f4ed1fc298/grafik.png) Steps to reproduce: ```bash ./IVAS_cod_flt_ref -stereo -max_band FB 96000 48 experiments/basop-verification/stereo-noisy_speech-p800-2/proc_input_d/cat1/20ms_aligned_files_concatenated.wav out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.192 eid-xor -vbr -fer out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.192 error_patterns/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000_ep.192 out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.fer.192 ./IVAS_dec_fx stereo 48 out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.fer.192 out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.fer.dec.fx.wav ``` Float reference SHA (`_flt_ref`): d9fdb37455cc5b9a41cc3c1229561a8731f475d0 FX binary SHA (`_fx`): 2470528bfb069d979283a8be56fc588f38040110 Error pattern file: [stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000_ep.192](/uploads/e72e0337bf66afd50770d290c52d4bd8/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000_ep.192) Bitstream can be shared upon request.
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