- remove obsolete encoder parameters st->last_element_mode, st->extl_orig, and st->extl_brate_orig (4d511c5a) · Commits · SA4 / Audio / IVAS BASOP

lib_enc/init_enc_fx.c

+213 −132

Original line number	Diff line number	Diff line
		@@ -27,8 +27,6 @@ ivas_error init_encoder_fx(
		)
		{
		Word16 i;
		Word32 L_tmp;


		Word16 idchan = 0; /* i : channel ID */
		Word16 vad_only_flag = 0; /* i : channel ID */
		@@ -607,20 +605,24 @@ ivas_error init_encoder_fx(
		* DTX
		-----------------------------------------------------------------/

		st_fx->lp_speech_fx = 11520;
		move16(); /Q8 (45.0) / /* Initialize the long-term active speech level in dB */
		st_fx->lp_noise_fx = 0;
		st->lp_speech_fx = 11520; /Q8 (45.0) / /* Initialize the long-term active speech level in dB */
		move16();
		st->lp_speech_32fx = 754974720; /Q24 (45.0) / /* Initialize the long-term active speech level in dB */
		move32();
		st->lp_noise_fx = 0;
		move16();
		st->lp_noise_32fx = 0;
		move16();

		test();
		test();
		IF( ( ( idchan == 0 && st_fx->Opt_DTX_ON ) \|\| EQ_16( st_fx->element_mode, EVS_MONO ) ) \|\| ( EQ_16( st_fx->element_mode, IVAS_CPE_MDCT ) && st_fx->Opt_DTX_ON ) )
		IF( ( ( idchan == 0 && st->Opt_DTX_ON ) \|\| st->element_mode == EVS_MONO ) \|\| ( EQ_16( st->element_mode, IVAS_CPE_MDCT ) && st->Opt_DTX_ON ) )
		{
		if ( ( st_fx->hDtxEnc = (DTX_ENC_HANDLE) malloc( sizeof( DTX_ENC_DATA ) ) ) == NULL )
		IF( ( st->hDtxEnc = (DTX_ENC_HANDLE) malloc( sizeof( DTX_ENC_DATA ) ) ) == NULL )
		{
		return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for DTX variables\n" ) );
		}
		dtx_enc_init_fx( st_fx, var_SID_rate_flag, interval_SID );
		dtx_enc_init_fx( st, var_SID_rate_flag, interval_SID );
		}
		ELSE
		{
		@@ -643,23 +645,25 @@ ivas_error init_encoder_fx(
		* LP-CNG
		-----------------------------------------------------------------/

		test();
		test();
		test();
		test();
		test();
		IF( ( ( idchan == 0 && st_fx->Opt_DTX_ON && NE_16( st_fx->element_mode, IVAS_CPE_MDCT ) ) \|\| EQ_16( st_fx->element_mode, EVS_MONO ) ) && !( EQ_16( ism_mode, ISM_MODE_PARAM ) \|\| EQ_16( ism_mode, ISM_MODE_DISC ) ) )
		IF( ( ( idchan == 0 && st->Opt_DTX_ON && NE_16( st->element_mode, IVAS_CPE_MDCT ) ) \|\| st->element_mode == EVS_MONO ) && !( EQ_16( ism_mode, ISM_MODE_PARAM ) \|\| EQ_16( ism_mode, ISM_MODE_DISC ) ) )
		{
		IF( ( st_fx->hTdCngEnc = (TD_CNG_ENC_HANDLE) malloc( sizeof( TD_CNG_ENC_DATA ) ) ) == NULL )
		IF( ( st->hTdCngEnc = (TD_CNG_ENC_HANDLE) malloc( sizeof( TD_CNG_ENC_DATA ) ) ) == NULL )
		{
		return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for DTX/TD CNG\n" ) );
		}

		td_cng_enc_init_fx( st_fx->hTdCngEnc, st_fx->Opt_DTX_ON, st_fx->max_bwidth );
		IF( st->element_mode == EVS_MONO )
		{
		td_cng_enc_init_fx( st->hTdCngEnc, st->Opt_DTX_ON, st->max_bwidth );
		}
		ELSE
		{
		st_fx->hTdCngEnc = NULL;
		td_cng_enc_init_ivas_fx( st->hTdCngEnc, st->Opt_DTX_ON, st->max_bwidth );
		}
		}
		ELSE
		{
		st->hTdCngEnc = NULL;
		}


		@@ -669,68 +673,73 @@ ivas_error init_encoder_fx(

		test();
		test();
		IF( ( idchan == 0 && NE_16( st_fx->element_mode, IVAS_CPE_MDCT ) ) \|\| EQ_16( st_fx->element_mode, IVAS_CPE_TD ) )
		IF( ( idchan == 0 && NE_16( st->element_mode, IVAS_CPE_MDCT ) ) \|\| EQ_16( st->element_mode, IVAS_CPE_TD ) )
		{
		IF( ( st_fx->hLPDmem = (LPD_state_HANDLE) malloc( sizeof( LPD_state ) ) ) == NULL )
		IF( ( st->hLPDmem = (LPD_state_HANDLE) malloc( sizeof( LPD_state ) ) ) == NULL )
		{
		return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for LPDmem\n" ) );
		}

		LPDmem_enc_init_fx( st_fx->hLPDmem );
		IF( st->element_mode == EVS_MONO )
		{
		LPDmem_enc_init_fx( st->hLPDmem );
		}
		ELSE
		{
		st_fx->hLPDmem = NULL;
		LPDmem_enc_init_ivas_fx( st->hLPDmem );
		}

		/* FEC */
		st_fx->last_clas = UNVOICED_CLAS;
		move16();

		FOR( i = 0; i < 2 * NB_SUBFR16k; i++ )
		}
		ELSE
		{
		st_fx->old_pitch_buf_fx[i] = L_SUBFR_Q6;
		move16();
		st->hLPDmem = NULL;
		}
		st_fx->old_Es_pred_fx = 0;
		move16();
		set16_fx( st_fx->old_Aq_12_8_fx + 1, 0, M );
		st_fx->old_Aq_12_8_fx[0] = 4096;
		move16();


		/-----------------------------------------------------------------
		* CLDFB Analysis
		-----------------------------------------------------------------/

		test();
		test();
		test();
		IF( ( NE_16( st->element_mode, IVAS_CPE_MDCT ) && idchan == 0 ) \|\| ( EQ_16( st->element_mode, IVAS_CPE_MDCT ) && st->Opt_DTX_ON ) )
		{
		IF( st->element_mode == EVS_MONO )
		{
		/* open analysis for input SR */
		if ( ( error = openCldfb( &st_fx->cldfbAnaEnc, CLDFB_ANALYSIS, st_fx->input_Fs ) ) != IVAS_ERR_OK )
		IF( ( error = openCldfb( &st->cldfbAnaEnc, CLDFB_ANALYSIS, st->input_Fs ) ) != IVAS_ERR_OK )
		{
		return error;
		}

		if ( ( error = openCldfb( &st_fx->cldfbSynTd, CLDFB_SYNTHESIS, 16000 ) ) != IVAS_ERR_OK )
		}
		ELSE
		{
		IF( ( error = openCldfb_ivas_fx( &st->cldfbAnaEnc, CLDFB_ANALYSIS, st->input_Fs, CLDFB_PROTOTYPE_1_25MS, ENC ) ) != IVAS_ERR_OK )
		{
		return error;
		}
		}
		}
		ELSE
		{
		st->cldfbAnaEnc = NULL;
		}

		st_fx->energyCoreLookahead_Fx = 0;
		IF( st->element_mode == EVS_MONO )
		{
		st->energyCoreLookahead_Fx = 0;
		move32();
		st_fx->sf_energyCoreLookahead_Fx = 0;
		move16();

		/* stable short pitch detection */
		st_fx->voicing0_sm_fx = 0;
		move16();
		st_fx->voicing_sm_fx = 0;
		move16();
		st_fx->LF_EnergyRatio_sm_fx = 128;
		move16();
		st_fx->predecision_flag = 0;
		st->sf_energyCoreLookahead_Fx = 0;
		move16();
		st_fx->diff_sm_fx = 0;
		move32();
		st_fx->energy_sm_fx = 0;
		}
		ELSE
		{
		st->energyCoreLookahead_Fx = 2; /* 6.1e-5f in Q15 */
		move32();
		st->sf_energyCoreLookahead_Fx = 2; /* 6.1e-5f in Q15 */
		move16();
		}


		/-----------------------------------------------------------------
		* SC-VBR parameters
		@@ -780,18 +789,21 @@ ivas_error init_encoder_fx(
		/-----------------------------------------------------------------
		* SWB BWE parameters
		-----------------------------------------------------------------/
		IF( idchan == 0 && NE_16( st_fx->element_mode, IVAS_CPE_MDCT ) )
		test();
		IF( idchan == 0 && NE_16( st->element_mode, IVAS_CPE_MDCT ) )
		{
		IF( ( st_fx->hBWE_FD = (FD_BWE_ENC_HANDLE) malloc( sizeof( FD_BWE_ENC_DATA ) ) ) == NULL )
		IF( ( st->hBWE_FD = (FD_BWE_ENC_HANDLE) malloc( sizeof( FD_BWE_ENC_DATA ) ) ) == NULL )
		{
		return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for FD BWE\n" ) );
		}

		fd_bwe_enc_init_fx( st_fx->hBWE_FD );
		fd_bwe_enc_init_fx( st->hBWE_FD );
		st->Q_old_wtda = 0;
		move16();
		}
		ELSE
		{
		st_fx->hBWE_FD = NULL;
		st->hBWE_FD = NULL;
		}

		st_fx->prev_Q_shb = 0;
		@@ -803,27 +815,42 @@ ivas_error init_encoder_fx(
		* TBE parameters
		-----------------------------------------------------------------/

		IF( idchan == 0 && NE_16( st_fx->element_mode, IVAS_CPE_MDCT ) )
		test();
		IF( idchan == 0 && NE_16( st->element_mode, IVAS_CPE_MDCT ) )
		{
		IF( ( st_fx->hBWE_TD = (TD_BWE_ENC_HANDLE) malloc( sizeof( TD_BWE_ENC_DATA ) ) ) == NULL )
		IF( ( st->hBWE_TD = (TD_BWE_ENC_HANDLE) malloc( sizeof( TD_BWE_ENC_DATA ) ) ) == NULL )
		{
		return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for TD BWE\n" ) );
		}

		// IF ((error = openCldfb(&st_fx->cldfbSynTd, CLDFB_SYNTHESIS, 16000, CLDFB_PROTOTYPE_1_25MS)) != IVAS_ERR_OK)
		//{
		// return error;
		// }
		IF( st->element_mode == EVS_MONO )
		{
		if ( ( error = openCldfb( &st->cldfbSynTd, CLDFB_SYNTHESIS, 16000 ) ) != IVAS_ERR_OK )
		{
		return error;
		}

		InitSWBencBuffer_fx( st_fx /st_fx->hBWE_TD/ );
		ResetSHBbuffer_Enc_fx( st_fx /st_fx->hBWE_TD/ );
		InitSWBencBuffer_fx( st /st_fx->hBWE_TD/ );
		}
		ELSE
		{
		st_fx->hBWE_TD = NULL;
		// st_fx->cldfbSynTd = NULL;
		IF( ( error = openCldfb_ivas_fx( &st->cldfbSynTd, CLDFB_SYNTHESIS, 16000, CLDFB_PROTOTYPE_1_25MS, ENC ) ) != IVAS_ERR_OK )
		{
		return error;
		}

		InitSWBencBuffer_ivas_fx( st );
		}

		ResetSHBbuffer_Enc_fx( st );
		}
		ELSE
		{
		st->hBWE_TD = NULL;
		st->cldfbSynTd = NULL;
		}


		test();
		IF( st_fx->Opt_RF_ON \|\| st_fx->element_mode == EVS_MONO )
		{
		@@ -860,41 +887,46 @@ ivas_error init_encoder_fx(
		* TCX core
		-----------------------------------------------------------------/

		// ToDo: reduction possible for MCT_CHAN_MODE_LFE channel
		test();
		IF( idchan == 0 \|\| EQ_16( st_fx->element_mode, IVAS_CPE_MDCT ) )
		IF( idchan == 0 \|\| EQ_16( st->element_mode, IVAS_CPE_MDCT ) )
		{
		IF( ( st_fx->hTcxEnc = (TCX_ENC_HANDLE) malloc( sizeof( TCX_ENC_DATA ) ) ) == NULL )
		IF( ( st->hTcxEnc = (TCX_ENC_HANDLE) malloc( sizeof( TCX_ENC_DATA ) ) ) == NULL )
		{
		return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for hTcxEnc\n" ) );
		}
		set32_fx( st->hTcxEnc->spectrum_long_fx, 0, N_MAX );
		st->hTcxEnc->spectrum_long_e = 0;
		move16();

		/* Share the memories for 2xTCX10/4xTCX5 and for TCX20 */
		/*st_fx->hTcxEnc->spectrum[0] = st_fx->hTcxEnc->spectrum_long;
		st_fx->hTcxEnc->spectrum[1] = st_fx->hTcxEnc->spectrum_long + N_TCX10_MAX;*/

		st_fx->hTcxEnc->spectrum_fx[0] = st_fx->hTcxEnc->spectrum_long_fx;
		st_fx->hTcxEnc->spectrum_fx[1] = st_fx->hTcxEnc->spectrum_long_fx + N_TCX10_MAX;
		st->hTcxEnc->spectrum_fx[0] = st->hTcxEnc->spectrum_long_fx;
		st->hTcxEnc->spectrum_fx[1] = st->hTcxEnc->spectrum_long_fx + N_TCX10_MAX;
		move32();
		move32();
		st->hTcxEnc->spectrum_e[0] = st->hTcxEnc->spectrum_e[1] = 0;
		move16();
		move16();

		set16_fx( st_fx->hTcxEnc->old_out_fx, 0, L_FRAME32k );
		st_fx->hTcxEnc->Q_old_out = 0;
		set16_fx( st->hTcxEnc->old_out_fx, 0, L_FRAME32k );
		st->hTcxEnc->Q_old_out = 0;
		move16();

		/* MDCT selector */
		MDCT_selector_reset_fx( st_fx->hTcxEnc );
		st_fx->hTcxEnc->Q_old_out = 0;
		move16();
		MDCT_selector_reset_fx( st->hTcxEnc );

		/* MDCT classifier */
		MDCT_classifier_reset_fx( st_fx->hTcxEnc );
		MDCT_classifier_reset_fx( st->hTcxEnc );

		IF( ( st_fx->hTcxCfg = (TCX_CONFIG_HANDLE) malloc( sizeof( TCX_config ) ) ) == NULL )
		IF( ( st->hTcxCfg = (TCX_CONFIG_HANDLE) malloc( sizeof( TCX_config ) ) ) == NULL )
		{
		return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for hTcxCfg\n" ) );
		}
		}
		ELSE
		{
		st_fx->hTcxEnc = NULL;
		// st_fx->hTcxCfg = NULL;
		st->hTcxEnc = NULL;
		st->hTcxCfg = NULL;
		}
		/-----------------------------------------------------------------
		* HQ core parameters
		@@ -961,57 +993,104 @@ ivas_error init_encoder_fx(
		* IGF
		-----------------------------------------------------------------/

		move16();

		test();
		test();
		IF( idchan == 0 \|\| EQ_16( st_fx->element_mode, IVAS_CPE_MDCT ) )
		test();
		IF( ( idchan == 0 \|\| EQ_16( st->element_mode, IVAS_CPE_MDCT ) ) && ( st->igf \|\| st->element_mode == EVS_MONO ) )
		{
		IF( ( st_fx->hIGFEnc = (IGF_ENC_INSTANCE_HANDLE) malloc( sizeof( IGF_ENC_INSTANCE ) ) ) == NULL )
		IF( ( st->hIGFEnc = (IGF_ENC_INSTANCE_HANDLE) malloc( sizeof( IGF_ENC_INSTANCE ) ) ) == NULL )
		{
		return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for hIGFEnc\n" ) );
		}
		}
		ELSE
		{
		st_fx->hIGFEnc = NULL;
		move16();
		st->hIGFEnc = NULL;
		}

		IF( EQ_16( st_fx->codec_mode, MODE2 ) )

		/-----------------------------------------------------------------
		* FD-CNG encoder
		-----------------------------------------------------------------/

		test();
		test();
		test();
		test();
		IF( ( idchan == 0 && st->Opt_DTX_ON ) \|\| st->element_mode == EVS_MONO \|\| ( EQ_16( st->element_mode, IVAS_CPE_MDCT ) && st->Opt_DTX_ON ) )
		{
		createFdCngEnc_fx( &st->hFdCngEnc );

		initFdCngEnc_fx( st->hFdCngEnc, st->input_Fs, st->cldfbAnaEnc->scale );

		/* initialization for IVAS modes happens in first frame pre-processing */
		IF( st->element_mode == EVS_MONO )
		{
		Word32 total_brate;

		test();
		IF( st->rf_mode && EQ_32( st->total_brate, ACELP_13k20 ) )
		{
		st_fx->igf = getIgfPresent_fx( st_fx->element_mode, st_fx->total_brate, st_fx->bwidth, st_fx->rf_mode );
		total_brate = ACELP_9k60;
		move32();
		}
		ELSE
		{
		st_fx->igf = 0;
		move16();
		total_brate = st->total_brate;
		move32();
		}

		/* FD-CNG encoder */
		createFdCngEnc_fx( &st_fx->hFdCngEnc );
		initFdCngEnc_fx( st_fx->hFdCngEnc, st_fx->input_Fs, st_fx->cldfbAnaEnc->scale );
		L_tmp = st_fx->total_brate;
		move32();
		test();
		if ( st_fx->rf_mode && EQ_32( st_fx->total_brate, ACELP_13k20 ) )
		configureFdCngEnc_fx( st->hFdCngEnc, st->bwidth, total_brate );
		}
		}
		ELSE
		{
		L_tmp = ACELP_9k60;
		move32();
		st->hFdCngEnc = NULL;
		}
		configureFdCngEnc_fx( st_fx->hFdCngEnc, st_fx->bwidth, L_tmp );


		st_fx->last_totalNoise_fx = 0;
		move16();
		set16_fx( st_fx->totalNoise_increase_hist_fx, 0, TOTALNOISE_HIST_SIZE );
		st_fx->totalNoise_increase_len = 0;
		move16();
		st->prevEnergyHF_fx = 0;
		move32();

		IF( st->element_mode == EVS_MONO )
		{
		init_coder_ace_plus_fx( st, st->last_total_brate, 0, -10 /hack/ );
		}
		ELSE
		{
		/* Initialize Signal Buffers */
		Word16 shift = getScaleFactor16( st->old_inp_16k_fx, L_INP_MEM );
		Scale_sig( st->old_inp_16k_fx, L_INP_MEM, shift );
		st->exp_old_inp_16k = sub( st->exp_old_inp_16k, shift );
		move16();
		shift = getScaleFactor16( st->old_inp_12k8_fx, L_INP_MEM );
		Scale_sig( st->old_inp_12k8_fx, L_INP_MEM, shift );
		st->exp_old_inp_12k8 = sub( st->exp_old_inp_12k8, shift );
		move16();

		init_coder_ace_plus_ivas_fx( st, st->last_total_brate, -1, 0 );
		}

		IF( st->hLPDmem != NULL )
		{
		st->hLPDmem->q_lpd_old_exc = st->prev_Q_new;
		move16();
		}

		init_coder_ace_plus_fx( st_fx, st_fx->last_total_brate, 0, -10 /hack/ );

		IF( ( st_fx->hTranDet = (TRAN_DET_HANDLE) malloc( sizeof( TRAN_DET_DATA ) ) ) == NULL )
		{
		return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Transient Detection\n" ) );
		}

		InitTransientDetection_fx( extract_l( Mult_32_16( st_fx->input_Fs, 0x0290 ) ), NS2SA_FX2( st_fx->input_Fs, DELAY_FIR_RESAMPL_NS ), st_fx->hTranDet );
		InitTransientDetection_fx( frame_length, NS2SA_FX2( st_fx->input_Fs, DELAY_FIR_RESAMPL_NS ), st_fx->hTranDet );

		st_fx->Q_syn2 = 0;
		move16();
		@@ -1034,31 +1113,30 @@ ivas_error init_encoder_fx(
		move16();
		st_fx->cng_sba_flag = 0; /* CNG in SBA flag */
		move16();
		st_fx->GSC_IVAS_mode = 0; /* CNG in SBA flag */
		st->bits_frame_channel = 0;
		move16();
		st_fx->element_mode = EVS_MONO; /* element mode */
		st->side_bits_frame_channel = 0;
		move16();
		st_fx->last_element_mode = st_fx->element_mode; /* element mode */

		st->Q_syn2 = 0;
		move16();
		st_fx->element_brate = -1; /* element bitrate */
		move32();
		// PMT("element_mode and element_brate should be initialized at a proper place in ivas_dec_init eventually")
		st_fx->low_rate_mode = 0; /* low-rate mode flag */
		st->Q_syn = 0;
		move16();
		// st_fx->coder_type = GENERIC; /* low-rate mode flag */

		set16_fx( st_fx->pitch, L_SUBFR, 3 );
		set16_fx( st_fx->voicing_fx, 0, 3 );

		set16_fx( st->Q_max, Q_MAX, L_Q_MEM );
		set16_fx( st->Q_max_16k, Q_MAX, L_Q_MEM );
		st->Q_old = 15;
		move16();
		st->old_wsp_max = 0;
		move16();
		st->old_wsp_shift = 0;
		move16();
		st->sharpFlag = 0;

		#ifdef DEBUGGING
		st_fx->id_element = -1; /* element ID */
		move16();
		#endif
		st_fx->extl_orig = -1; /* extension layer */
		move16();
		st_fx->extl_brate_orig = 0; /* extension layer bitrate */
		move32();

		return error;
		}

		@@ -1684,6 +1762,7 @@ ivas_error init_encoder_ivas_fx(
		move16();
		st->lp_noise_32fx = 0;
		move16();

		st->flag_noisy_speech_snr = 0;
		move16();
		st->fd_cng_reset_flag = 0;
		@@ -1782,6 +1861,7 @@ ivas_error init_encoder_ivas_fx(
		/-----------------------------------------------------------------
		* CLDFB & resampling tools parameters
		-----------------------------------------------------------------/

		test();
		test();
		test();
		@@ -1977,6 +2057,9 @@ ivas_error init_encoder_ivas_fx(
		st->hBWE_FD = NULL;
		}

		st->prev_Q_shb = 0;
		move16();

		/-----------------------------------------------------------------
		* HQ core parameters
		-----------------------------------------------------------------/
		@@ -2209,12 +2292,6 @@ ivas_error init_encoder_ivas_fx(
		set16_fx( st->totalNoise_increase_hist_fx, 0, TOTALNOISE_HIST_SIZE );
		st->totalNoise_increase_len = 0;
		move16();
		TCX_ENC_HANDLE hTcxEnc = st->hTcxEnc;
		IF( hTcxEnc != NULL )
		{
		hTcxEnc->L_frameTCX = frame_length;
		move16();
		}
		st->prevEnergyHF_fx = 0;
		move32();

		@@ -2326,6 +2403,10 @@ ivas_error init_encoder_ivas_fx(
		move16();
		st->sharpFlag = 0;
		move16();
		#ifdef DEBUGGING
		st_fx->id_element = -1; /* element ID */
		move16();
		#endif

		return error;
		}

lib_enc/stat_enc.h

+4 −5

Original line number	Diff line number	Diff line
		@@ -1235,12 +1235,11 @@ typedef struct enc_core_structure
		----------------------------------------------------------------------------------/

		Word16 idchan; /* channel ID (audio channel number) */
		#ifdef DEBUGGING
		Word16 id_element; /* element ID */
		#endif
		Word16 element_mode; /* element mode */
		Word16 last_element_mode; /* element mode */
		Word32 element_brate; /* element bitrate */
		Word16 extl_orig; /* extension layer */
		Word32 extl_brate_orig; /* extension layer bitrate */
		Word16 codec_mode; /* Mode1 or Mode2 */
		Word16 last_codec_mode; /* previous frame Mode 1 or 2 */
		Word16 last_codec_mode_cng; /* previous inactive frame Mode 1 or 2 */

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