Commit 0f18a0e6 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Fix for 3GPP issue 996: Low-frequency "thump" in MASA format using bitrate... 

Fix for 3GPP issue 996: Low-frequency "thump" in MASA format using bitrate switching and output to MONO

link #996
parent c3b61cca

lib_rend/ivas_dirac_rend.c

+12 −41
Original line number Diff line number Diff line
@@ -3471,47 +3471,18 @@ void protoSignalComputation2_fx( 
        // 20480 = 10 in Q11

        lr_total_bb_ratio_fx = Mpy_32_16_1( temp, 20480 ); // Q21



        temp = Mpy_32_32( a_fx, left_hi_power_fx ); // 2*(q_cldfb+min_q_shift) -31

        IF( LT_16( q_temp, stereo_type_detect->q_left_hi_power ) )

        {

            stereo_type_detect->left_hi_power_fx = L_add( temp, L_shr( Mpy_32_32( b_fx, stereo_type_detect->left_hi_power_fx ), sub( stereo_type_detect->q_left_hi_power, q_temp ) ) ); // q_temp

        stereo_type_detect->left_hi_power_fx = BASOP_Util_Add_Mant32Exp( Mpy_32_32( a_fx, left_hi_power_fx ), sub( 31, q_temp ), Mpy_32_32( b_fx, stereo_type_detect->left_hi_power_fx ), sub( 31, stereo_type_detect->q_left_hi_power ), &stereo_type_detect->q_left_hi_power );

        move32();

            stereo_type_detect->q_left_hi_power = q_temp;

        stereo_type_detect->q_left_hi_power = sub( 31, stereo_type_detect->q_left_hi_power );

        move16();

        }

        ELSE

        {

            stereo_type_detect->left_hi_power_fx = L_add( L_shr( temp, sub( q_temp, stereo_type_detect->q_left_hi_power ) ), Mpy_32_32( b_fx, stereo_type_detect->left_hi_power_fx ) ); // stereo_type_detect->q_left_hi_power

            move32();

        }



        temp = Mpy_32_32( a_fx, right_hi_power_fx ); // 2*(q_cldfb+min_q_shift) -31

        IF( LT_16( q_temp, stereo_type_detect->q_right_hi_power ) )

        {

            stereo_type_detect->right_hi_power_fx = L_add( temp, L_shr( Mpy_32_32( b_fx, stereo_type_detect->right_hi_power_fx ), sub( stereo_type_detect->q_right_hi_power, q_temp ) ) ); // q_temp

        stereo_type_detect->right_hi_power_fx = BASOP_Util_Add_Mant32Exp( Mpy_32_32( a_fx, right_hi_power_fx ), sub( 31, q_temp ), Mpy_32_32( b_fx, stereo_type_detect->right_hi_power_fx ), sub( 31, stereo_type_detect->q_right_hi_power ), &stereo_type_detect->q_right_hi_power );

        move32();

            stereo_type_detect->q_right_hi_power = q_temp;

        stereo_type_detect->q_right_hi_power = sub( 31, stereo_type_detect->q_right_hi_power );

        move16();

        }

        ELSE

        {

            stereo_type_detect->right_hi_power_fx = L_add( L_shr( temp, sub( q_temp, stereo_type_detect->q_right_hi_power ) ), Mpy_32_32( b_fx, stereo_type_detect->right_hi_power_fx ) ); // stereo_type_detect->q_right_hi_power

            move32();

        }



        temp = Mpy_32_32( a_fx, total_hi_power_fx ); // 2*(q_cldfb+min_q_shift) -31

        IF( LT_16( q_temp, stereo_type_detect->q_total_hi_power ) )

        {

            stereo_type_detect->total_hi_power_fx = L_add( temp, L_shr( Mpy_32_32( b_fx, stereo_type_detect->total_hi_power_fx ), sub( stereo_type_detect->q_total_hi_power, q_temp ) ) ); // q_temp

        stereo_type_detect->total_hi_power_fx = BASOP_Util_Add_Mant32Exp( Mpy_32_32( a_fx, total_hi_power_fx ), sub( 31, q_temp ), Mpy_32_32( b_fx, stereo_type_detect->total_hi_power_fx ), sub( 31, stereo_type_detect->q_total_hi_power ), &stereo_type_detect->q_total_hi_power );

        move32();

            stereo_type_detect->q_total_hi_power = q_temp;

        stereo_type_detect->q_total_hi_power = sub( 31, stereo_type_detect->q_total_hi_power );

        move16();

        }

        ELSE

        {

            stereo_type_detect->total_hi_power_fx = L_add( L_shr( temp, sub( q_temp, stereo_type_detect->q_total_hi_power ) ), Mpy_32_32( b_fx, stereo_type_detect->total_hi_power_fx ) ); // stereo_type_detect->q_total_hi_power

            move32();

        }



        IF( LT_16( stereo_type_detect->q_left_hi_power, stereo_type_detect->q_right_hi_power ) )

        {