# Bug description The calculation of bits_frame_core calculation in dec_prm_tcx_ivas_fx() should be reviewed - the current implementation is not straight forward: ``` // The value of 1/ FRAMES_PER_SEC shifted left by 19 because taking Q as 15 led to precision loss st->bits_frame_core = extract_l( L_sub( L_shr( Mpy_32_16_1( st->total_brate, 10486 ), 4 ), st->next_bit_pos ) ); /* Q0 */ ``` Also, the function name should be aligned to floating-point.