Commit cf1db1c5 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Fix for 3GPP issue 1267: High MLD for ParamMC 5.1 at 80 kbps with +10dB Input gain 

Link #1267
parent 0f6d8180

lib_enc/ivas_core_enc_fx.c

+10 −5
Original line number Diff line number Diff line
@@ -113,7 +113,7 @@ ivas_error ivas_core_enc_fx( 
    Word16 diff_nBits;

    ivas_error error;

    Word16 max_num_indices_BWE;

    Word16 i;

    Word16 i, shift, Q_min;



    set32_fx( new_swb_speech_buffer_fx, 0, L_FRAME48k + STEREO_DFT_OVL_MAX );

    set16_fx( new_swb_speech_buffer_fx_16, 0, L_FRAME48k + STEREO_DFT_OVL_MAX );
@@ -531,11 +531,16 @@ ivas_error ivas_core_enc_fx( 
                        st->hTcxEnc->exp_buf_speech_ltp = st->exp_buf_speech_enc;

                        move16();

                    }

                    Scale_sig( st->input_fx, input_frame, sub( -1, st->q_inp ) );

                    Scale_sig( st->input_fx - input_frame, input_frame, sub( -1, st->q_old_inp ) );

                    st->q_inp = -1;

                    shift = norm_arr( st->input_fx, input_frame );

                    Q_min = s_max( -2, add( st->q_inp, shift ) );

                    scale_sig( st->input_fx, input_frame, sub( Q_min, st->q_inp ) );

                    st->q_inp = Q_min;

                    move16();

                    st->q_old_inp = -1;



                    shift = norm_arr( st->input_fx - input_frame, input_frame );

                    Q_min = s_max( -2, add( st->q_old_inp, shift ) );

                    scale_sig( st->input_fx - input_frame, input_frame, sub( Q_min, st->q_old_inp ) );

                    st->q_old_inp = Q_min;

                    move16();

                }

lib_enc/ivas_core_pre_proc_front_fx.c

+2 −2
Original line number Diff line number Diff line
@@ -232,7 +232,7 @@ ivas_error pre_proc_front_ivas_fx( 
    Word16 Q_min = add( sub( 15, st->exp_old_inp_12k8 ), norm_arr( st->old_inp_12k8_fx, L_INP_MEM ) );

    Word16 input_frame_full = shl( input_frame, 1 ); //(old frame input length + new frame input length)

    Q_min = s_min( Q_min, sub( add( getScaleFactor32( st->input32_fx - input_frame, input_frame_full ), st->q_inp32 ), 16 ) );

    Q_min = s_max( -1, Q_min );

    Q_min = s_max( -2, Q_min );

    Copy_Scale_sig_32_16( st->input32_fx - input_frame, st->input_fx - input_frame, input_frame_full, sub( Q_min, st->q_inp32 ) ); // Q_min

    st->q_inp = Q_min;

    move16();
@@ -682,7 +682,7 @@ ivas_error pre_proc_front_ivas_fx( 
    }

    st->mem_preemph_fx = shl_sat( st->mem_preemph_fx_q_inp, sub( -1, st->q_inp ) ); /*Q(-1) saturation added as float value goes above 65536 for +10 dB test (ltv48_MC512.wav and ltv48_MC51.wav) */

    move16();

    st->mem_preemph_DFT_fx = shl( st->mem_preemph_DFT_fx_q_inp, sub( -1, st->q_inp ) ); /*Q(-1)*/

    st->mem_preemph_DFT_fx = shl_sat( st->mem_preemph_DFT_fx_q_inp, sub( -1, st->q_inp ) ); /*Q(-1)*/

    move16();

    st->mem_preemph_q = st->q_inp;

    move16();