Commit 4c0dfa80 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Merge branch 'high_mld_fixes_1' into 'main' 

Fix for precision loss in cos function

See merge request !1044
parents 5bb960bf b67c221b

lib_enc/ivas_mcmasa_enc.c

+5 −5
Original line number Diff line number Diff line
@@ -437,20 +437,20 @@ ivas_error ivas_mcmasa_enc_open_fx( 
    {

        hMcMasa->chnlToFoaMtx_fx[0][i] = ONE_IN_Q31;

        move32();

        hMcMasa->chnlToFoaMtx_fx[1][i] = L_mult( getSineWord16R2( extract_l( L_shr( Mult_32_16( ls_azimuth[i], 91 /*32767/360*/ ), 7 ) ) ), getCosWord16R2( extract_l( L_shr( Mult_32_16( ls_elevation[i], 91 ), 7 ) ) ) ); // Q31

        hMcMasa->chnlToFoaMtx_fx[1][i] = L_mult( getSineWord16R2( extract_l( Mpy_32_32( ls_azimuth[i], 46603 /*32767/360*/ ) /*Q22+Q24-31=>Q15*/ ) ), getCosWord16R2( extract_l( Mpy_32_32( ls_elevation[i], 46603 /*2^24/360*/ ) ) ) ); // Q31

        move32();

        hMcMasa->chnlToFoaMtx_fx[2][i] = L_shl( getSineWord16R2( extract_l( L_shr( Mult_32_16( ls_elevation[i], 91 ), 7 ) ) ), 16 ); // Q31

        hMcMasa->chnlToFoaMtx_fx[2][i] = L_shl( getSineWord16R2( extract_l( Mpy_32_32( ls_elevation[i], 46603 /*2^24/360*/ ) ) ), 16 ); // Q31

        move32();

        hMcMasa->chnlToFoaMtx_fx[3][i] = L_mult( getCosWord16R2( extract_l( L_shr( Mult_32_16( ls_azimuth[i], 91 ), 7 ) ) ), getCosWord16R2( extract_l( L_shr( Mult_32_16( ls_elevation[i], 91 ), 7 ) ) ) ); // Q31

        hMcMasa->chnlToFoaMtx_fx[3][i] = L_mult( getCosWord16R2( extract_l( Mpy_32_32( ls_azimuth[i], 46603 /*2^24/360*/ ) ) ), getCosWord16R2( extract_l( Mpy_32_32( ls_elevation[i], 46603 /*2^24/360*/ ) ) ) ); // Q31

        move32();



        hMcMasa->chnlToFoaEvenMtx_fx[0][i] = ONE_IN_Q31;

        move32();

        hMcMasa->chnlToFoaEvenMtx_fx[1][i] = L_shl( getSineWord16R2( extract_l( L_shr( Mult_32_16( ls_azimuth_even[i], 91 ), 7 ) ) ), 16 ); // Q31

        hMcMasa->chnlToFoaEvenMtx_fx[1][i] = L_shl( getSineWord16R2( extract_l( Mpy_32_32( ls_azimuth_even[i], 46603 /*2^24/360*/ ) ) ), 16 ); // Q31

        move32();

        hMcMasa->chnlToFoaEvenMtx_fx[2][i] = 0;

        move32();

        hMcMasa->chnlToFoaEvenMtx_fx[3][i] = L_shl( getCosWord16R2( extract_l( L_shr( Mult_32_16( ls_azimuth_even[i], 91 ), 7 ) ) ), 16 );

        hMcMasa->chnlToFoaEvenMtx_fx[3][i] = L_shl( getCosWord16R2( extract_l( Mpy_32_32( ls_azimuth_even[i], 46603 /*2^24/360*/ ) ) ), 16 );

        move32();

    }