Commit df7dd0bf authored by vaclav's avatar vaclav
Browse files

add comments

parent 5004a40a

lib_com/bits_alloc.c

+17 −7
Original line number Diff line number Diff line
@@ -777,9 +777,11 @@ ivas_error config_acelp1( 
            bits -= TDM_IC_LSF_PRED_BITS;

        }



        /* gain Q bit-budget - part 1 */

        /* gain Q bit-budget - part 1: 'Es_pred' of memory-less gain Q */

#ifdef NONBE_FIX_GSC_BSTR

        if ( ( coder_type != UNVOICED && coder_type != AUDIO && coder_type != INACTIVE && !( core_brate <= ACELP_8k00 && coder_type != TRANSITION ) ) || ( coder_type == INACTIVE && !inactive_coder_type_flag ) )

        if ( ( coder_type != UNVOICED && coder_type != AUDIO && coder_type != INACTIVE && !( core_brate <= ACELP_8k00 && coder_type != TRANSITION ) ) /* mid bitrates in GC and VC, low+mid bitrates in TC */ ||

             ( coder_type == INACTIVE && !inactive_coder_type_flag ) /* AVQ inactive */

        )

#else

        if ( ( coder_type != UNVOICED && coder_type != AUDIO && coder_type != INACTIVE && !( core_brate <= ACELP_8k00 && coder_type != TRANSITION ) ) || ( coder_type == INACTIVE && total_brate > MAX_GSC_INACTIVE_BRATE ) )

#endif
@@ -1064,7 +1066,9 @@ ivas_error config_acelp1( 
        acelp_cfg->fixed_cdk_index[3] = -1;

    }

#ifdef NONBE_FIX_GSC_BSTR

    else if ( ( coder_type != INACTIVE && nb_subfr == NB_SUBFR && coder_type != AUDIO ) || ( nb_subfr == NB_SUBFR16k && ( !inactive_coder_type_flag || coder_type != INACTIVE ) ) || core == HQ_CORE )

    else if ( ( coder_type != INACTIVE && nb_subfr == NB_SUBFR && coder_type != AUDIO ) ||           /* @12.8kHz core except of GSC */

              ( nb_subfr == NB_SUBFR16k && ( !inactive_coder_type_flag || coder_type != INACTIVE ) ) /* @16kHz core GC, TC, AVQ inactive */

              || core == HQ_CORE /* ACELP -> HQ switching in EVS */ )

#else

    else if ( ( coder_type != INACTIVE && nb_subfr == NB_SUBFR && coder_type != AUDIO ) || ( nb_subfr == NB_SUBFR16k && ( total_brate > MAX_GSC_INACTIVE_BRATE || coder_type != INACTIVE ) ) || core == HQ_CORE )

#endif
@@ -1116,7 +1120,9 @@ ivas_error config_acelp1( 


        /* algebraic codebook bit-budget */

#ifdef NONBE_FIX_GSC_BSTR

        if ( flag_hardcoded || ( core_brate_inp >= MIN_BRATE_AVQ_EXC && coder_type != INACTIVE ) || ( !inactive_coder_type_flag && coder_type == INACTIVE ) )

        if ( flag_hardcoded || /* EVS */

             ( core_brate_inp >= MIN_BRATE_AVQ_EXC && coder_type != INACTIVE ) /* high-birate ACELP except IC */ ||

             ( !inactive_coder_type_flag && coder_type == INACTIVE ) /* AVQ inactive */ )

#else

        if ( flag_hardcoded || ( core_brate_inp >= MIN_BRATE_AVQ_EXC && coder_type != INACTIVE ) || ( total_brate > MAX_GSC_INACTIVE_BRATE && coder_type == INACTIVE ) )

#endif
@@ -1207,7 +1213,8 @@ ivas_error config_acelp1( 


        /* AVQ codebook */

#ifdef NONBE_FIX_GSC_BSTR

        if ( ( core_brate_inp >= MIN_BRATE_AVQ_EXC && coder_type != INACTIVE ) || ( !inactive_coder_type_flag && coder_type == INACTIVE ) )

        if ( ( core_brate_inp >= MIN_BRATE_AVQ_EXC && coder_type != INACTIVE ) /* high-birate ACELP except IC */ ||

             ( !inactive_coder_type_flag && coder_type == INACTIVE ) /* AVQ inactive */ )

#else

        if ( ( core_brate_inp >= MIN_BRATE_AVQ_EXC && coder_type != INACTIVE ) || ( total_brate > MAX_GSC_INACTIVE_BRATE && coder_type == INACTIVE ) )

#endif
@@ -1246,7 +1253,9 @@ ivas_error config_acelp1( 
        }

    }

#ifdef NONBE_FIX_GSC_BSTR

    else if ( ( coder_type == UNVOICED && tdm_low_rate_mode == 1 && element_mode == IVAS_CPE_TD ) || ( ( coder_type == INACTIVE || coder_type == AUDIO ) && nb_subfr == NB_SUBFR ) || ( coder_type == INACTIVE && inactive_coder_type_flag ) )

    else if ( ( coder_type == UNVOICED && tdm_low_rate_mode == 1 && element_mode == IVAS_CPE_TD ) /* LBR secondary channel in TD stereo */ ||

              ( ( coder_type == INACTIVE || coder_type == AUDIO ) && nb_subfr == NB_SUBFR ) /* GSC @12.8kHz */ ||

              ( coder_type == INACTIVE && inactive_coder_type_flag ) /* AVQ inactive */ )

#else

    else if ( ( coder_type == UNVOICED && tdm_low_rate_mode == 1 && element_mode == IVAS_CPE_TD ) || ( ( coder_type == INACTIVE || coder_type == AUDIO ) && nb_subfr == NB_SUBFR ) || ( coder_type == INACTIVE && total_brate <= MAX_GSC_INACTIVE_BRATE ) )

#endif
@@ -1343,7 +1352,8 @@ ivas_error config_acelp1( 
    if ( ( coder_type != INACTIVE && nb_subfr == NB_SUBFR && coder_type != AUDIO ) || nb_subfr == NB_SUBFR16k )

    {

#ifdef NONBE_FIX_GSC_BSTR

        if ( ( L_frame == L_FRAME16k && coder_type == INACTIVE && inactive_coder_type_flag ) || ( GSC_IVAS_mode > 0 && L_frame == L_FRAME16k ) ) /* GSC Inactive @16kHz */

        if ( ( L_frame == L_FRAME16k && coder_type == INACTIVE && inactive_coder_type_flag ) /* GSC Inactive @16kHz */ ||

             ( GSC_IVAS_mode > 0 && L_frame == L_FRAME16k ) ) /* IVAS GSC @16kHz */

#else

        if ( ( L_frame == L_FRAME16k && coder_type == INACTIVE && total_brate <= MAX_GSC_INACTIVE_BRATE ) || ( GSC_IVAS_mode > 0 && L_frame == L_FRAME16k ) ) /* GSC Inactive @16kHz */

#endif