Commit 40823d1b authored by malenovsky's avatar malenovsky
Browse files

Merge branch '1000-usan-division-by-zero-in-swb_tbe_com-c' into 'main' 

Resolve "USAN: Division by zero in swb_tbe_com.c"

See merge request !1405
parents c3148745 2465f482

lib_com/options.h

+1 −0
Original line number Diff line number Diff line
@@ -181,6 +181,7 @@ 
#endif



#define NONBE_FIX_984_OMASA_EXT_OUTPUT                        /* Nokia: issue #984: complete the OMASA EXT output implementation */

#define NONBE_FIX_1000_G1_G2_SWB_TBE                          /* VA: issue 1000: avoid div by zero due to g1 + g2 being zero in SWB TBE */



/* ##################### End NON-BE switches ########################### */

lib_com/swb_tbe_com.c

+18 −0
Original line number Diff line number Diff line
@@ -938,6 +938,14 @@ void GenShapedSHBExcitation( 
                }



                den = 4.0f * c0 * c2 - c4 * c4;



#ifdef NONBE_FIX_1000_G1_G2_SWB_TBE

                if ( den == 0.0f )

                {

                    den = 1e-7f;

                }

#endif



                g1 = ( c3 * c4 - 2 * c1 * c2 ) / den;

                g2 = ( c1 * c4 - 2 * c0 * c3 ) / den;
@@ -964,7 +972,17 @@ void GenShapedSHBExcitation( 
                else

                {

                    /* normalize gain */

#ifdef NONBE_FIX_1000_G1_G2_SWB_TBE

                    temp = 0.0f;

                    if ( g1 + g2 == 0.0f )

                    {

                        temp = 1e-7f;

                    }



                    g = g2 / ( g1 + g2 + temp );

#else

                    g = g2 / ( g1 + g2 );

#endif



                    /* quantization of the mixing factor */

                    cbsize = 1 << NUM_BITS_SHB_VF;