Commit 3b369399 authored by norvell's avatar norvell
Browse files

Port fix FIX_963_USAN_ERROR to resolve division-by-zero in Stereo CNG

parent 5e45ee71

lib_com/options.h

+1 −0
Original line number Diff line number Diff line
@@ -204,6 +204,7 @@ 
#define FIX_929_RENDERER_CMDL                           /* Nokia: issue #929: renderer command line option */

#define NONBE_FIX_BINAURAL_ROOM_IR_REVERBERATOR               /* FhG: re-enable acidentially disabled reverberator for BINAURAL_ROOM_IR */

#define NONBE_FIX_1058_DECODER_ERROR_WITH_REVERB_ROOM   /* FhG: issue 1058: do not initialize EFAP when IntSetup is HOA3 */

#define FIX_963_USAN_ERROR                              /* Eri: Issue 963: USAN error in Stereo CNG, division by zero */



/* #################### End BASOP porting switches ############################ */

lib_enc/ivas_stereo_dft_enc_itd.c

+22 −0
Original line number Diff line number Diff line
@@ -914,7 +914,18 @@ void stereo_dft_enc_compute_itd( 
                {

                    hStereoDft->expectedNumUpdates += 1 + min( hCPE->hFrontVad[0]->rem_dtx_ho, hCPE->hFrontVad[1]->rem_dtx_ho );

                }

#ifdef FIX_963_USAN_ERROR

                if ( hStereoDft->expectedNumUpdates + hStereoDft->currentNumUpdates == 0 )

                {

                    cng_xcorr_filt = max( CORR_FILT, sfm_L );

                }

                else

                {

                    cng_xcorr_filt = max( min( CORR_FILT, 10.0f * CORR_FILT / ( hStereoDft->expectedNumUpdates + hStereoDft->currentNumUpdates ) ), sfm_L );

                }

#else

                cng_xcorr_filt = max( min( CORR_FILT, 10.0f * CORR_FILT / ( hStereoDft->expectedNumUpdates + hStereoDft->currentNumUpdates ) ), sfm_L );

#endif

                hStereoDft->currentNumUpdates++;

                for ( i = 1; i < NFFT / 2; i++ )

                {
@@ -949,7 +960,18 @@ void stereo_dft_enc_compute_itd( 
            if ( vad_flag_dtx[0] == 0 )

            {

                /* expectedNumUpdates updated after call to dtx() in SID frames */

#ifdef FIX_963_USAN_ERROR

                if ( hStereoDft->expectedNumUpdates + hStereoDft->currentNumUpdates == 0 )

                {

                    cng_xcorr_filt = max( CORR_FILT, sfm_L );

                }

                else

                {

                    cng_xcorr_filt = max( min( CORR_FILT, 10.0f * CORR_FILT / ( hStereoDft->expectedNumUpdates + hStereoDft->currentNumUpdates ) ), sfm_L );

                }

#else

                cng_xcorr_filt = max( min( CORR_FILT, 10.0f * CORR_FILT / ( hStereoDft->expectedNumUpdates + hStereoDft->currentNumUpdates ) ), sfm_L );

#endif

                hStereoDft->currentNumUpdates++;

                hStereoDft->sfm = cng_xcorr_filt;

            }