EstimateTCXNoiseLevel, sub-functions in init_coder_ace_plus,... (1f6e7418) · Commits · SA4 / Audio / IVAS BASOP

lib_com/core_com_config.c

+226 −2

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@
		#include "wmc_auto.h"
		#include "ivas_prot.h"
		#include "prot_fx.h"
		#include "ivas_prot_fx.h"

		#define FSCALE_DENOM_BY_12800_Q15 1311
		/-------------------------------------------------------------------
		@@ -229,6 +230,78 @@ int16_t getTcxonly_ivas(
		return tcxonly;
		}


		#ifdef IVAS_FLOAT_FIXED
		Word16 getTcxonly_ivas_fx(
		const Word16 element_mode, /* i : IVAS element mode */
		const Word32 total_brate, /* i : total bitrate */
		const Word16 MCT_flag, /* i : hMCT handle allocated (1) or not (0)*/
		const Word16 is_ism_format /* i : flag indicating ISM format */
		)
		{
		Word16 tcxonly = 0;
		move16();
		Word32 temp_flag;
		if ( MCT_flag )
		{
		temp_flag = IVAS_32k;
		move32();
		}
		else
		{
		temp_flag = IVAS_48k;
		move32();
		}

		SWITCH( element_mode )
		{
		case EVS_MONO:
		if ( GT_32( total_brate, ACELP_32k ) )
		{
		tcxonly = 1;
		move16();
		}
		BREAK;
		case IVAS_SCE:
		if ( is_ism_format )
		{
		if ( GT_32( total_brate, MAX_ACELP_BRATE_ISM ) )
		{
		tcxonly = 1;
		move16();
		}
		}
		else
		{
		if ( GT_32( total_brate, MAX_ACELP_BRATE ) )
		{
		tcxonly = 1;
		move16();
		}
		}
		BREAK;

		case IVAS_CPE_DFT:
		case IVAS_CPE_TD:
		if ( GT_32( total_brate, MAX_ACELP_BRATE ) )
		{
		tcxonly = 1;
		move16();
		}
		BREAK;
		case IVAS_CPE_MDCT:
		if ( GE_32( total_brate, temp_flag ) )
		{
		tcxonly = 1;
		move16();
		}
		BREAK;
		}

		return tcxonly;
		}
		#endif

		Word16 getTcxonly(
		#ifdef IVAS_CODE_SWITCHING
		const Word16 element_mode, /* i : IVAS element mode */
		@@ -706,7 +779,7 @@ Word16 getTcxBandwidth(

		tcxBandwidth = 16384 /0.5f Q15/;
		move16();
		if ( bwidth == NB )
		if ( EQ_16( bwidth, NB ) )
		{
		tcxBandwidth = 10240 /0.3125f Q15/;
		move16();
		@@ -1411,6 +1484,157 @@ void init_tcx_cfg(

		return;
		}

		#ifdef IVAS_FLOAT_FIXED
		void init_tcx_cfg_ivas_fx(
		TCX_CONFIG_HANDLE hTcxCfg,
		const Word32 total_brate,
		const Word32 sr_core,
		const Word32 input_Fs,
		const Word16 L_frame,
		const Word16 bwidth,
		const Word16 L_frameTCX,
		const Word16 fscale,
		const Word16 preemph_fac,
		const Word16 tcxonly,
		const Word16 rf_mode,
		const Word16 igf,
		const Word16 infoIGFStopFreq,
		const Word16 element_mode,
		const Word16 ini_frame,
		const Word16 MCT_flag )
		{
		Word16 i;
		Word16 mdctWindowLength;
		Word16 mdctWindowLengthFB;
		Word16 na_scale_bwidth;

		hTcxCfg->preemph_fac = preemph_fac;
		move16();

		hTcxCfg->tcx5Size = shr( L_frame, 2 ); /* Always 5 ms */
		hTcxCfg->tcx5SizeFB = shr( L_frameTCX, 2 ); /* Always 5 ms */
		move16();
		move16();

		hTcxCfg->tcx_mdct_window_length_old = hTcxCfg->tcx_mdct_window_length;
		move16();
		mdctWindowLength = getMdctWindowLength_fx( fscale );
		mdctWindowLengthFB = (Word16) ( mdctWindowLength * input_Fs / sr_core );

		init_tcx_window_cfg_fx( hTcxCfg, sr_core, input_Fs, L_frame, L_frameTCX, mdctWindowLength, mdctWindowLengthFB, element_mode );
		/* SQ deadzone & memory quantization*/
		hTcxCfg->sq_rounding = 12288 /0.375f Q15/; /deadzone of 1.25->rounding=1-1.25/2 (No deadzone=0.5)/
		move16();

		/* TCX rate loop */
		hTcxCfg->tcxRateLoopOpt = 0;
		move16();

		if ( tcxonly != 0 )
		{
		hTcxCfg->tcxRateLoopOpt = 2;
		move16();
		}
		if ( EQ_16( element_mode, IVAS_CPE_MDCT ) )
		{
		hTcxCfg->tcxRateLoopOpt = 3;
		move16();
		}
		hTcxCfg->bandwidth = getTcxBandwidth( bwidth );
		move16();

		/* set number of coded lines */
		hTcxCfg->tcx_coded_lines = getNumTcxCodedLines( bwidth );
		move16();

		/* TNS in TCX */
		hTcxCfg->pCurrentTnsConfig = NULL;
		hTcxCfg->fIsTNSAllowed = getTnsAllowed( total_brate, igf, element_mode );
		move16();

		IF( hTcxCfg->fIsTNSAllowed )
		{
		InitTnsConfigs_ivas_fx( bwidth, hTcxCfg->tcx_coded_lines, hTcxCfg->tnsConfig, infoIGFStopFreq, total_brate, element_mode, MCT_flag );

		SetAllowTnsOnWhite( hTcxCfg->tnsConfig, (Word8) EQ_16( element_mode, IVAS_CPE_MDCT ) );
		}

		IF( ini_frame == 0 )
		{
		hTcxCfg->tcx_curr_overlap_mode = hTcxCfg->tcx_last_overlap_mode = ALDO_WINDOW;
		hTcxCfg->last_aldo = 1;
		move16();
		move16();
		move16();
		}

		/* Context HM*/
		hTcxCfg->ctx_hm = getCtxHm( element_mode, total_brate, rf_mode );
		move16();

		/* Residual Coding*/
		hTcxCfg->resq = getResq( total_brate );
		move16();
		test();
		if ( hTcxCfg->resq && !tcxonly )
		{
		hTcxCfg->tcxRateLoopOpt = 1;
		move16();
		}

		/Set bandwidth scale/
		IF( EQ_16( bwidth, NB ) )
		{
		na_scale_bwidth = NB;
		}
		ELSE IF( LE_32( sr_core, INT_FS_16k ) )
		{
		na_scale_bwidth = WB;
		}
		ELSE
		{
		na_scale_bwidth = SWB;
		}
		move16();
		hTcxCfg->na_scale = 32767 /1.0f Q15/;
		move16();

		test();
		IF( LT_16( na_scale_bwidth, SWB ) && !tcxonly )
		{
		FOR( i = 0; i < SIZE_SCALE_TABLE_TCX; i++ )
		{
		test();
		test();
		IF( ( EQ_16( na_scale_bwidth, scaleTcxTable[i].bwmode ) ) &&
		( GE_32( total_brate, scaleTcxTable[i].bitrateFrom ) ) &&
		( LT_32( total_brate, scaleTcxTable[i].bitrateTo ) ) )
		{
		if ( rf_mode )
		{
		i = sub( i, 1 );
		}
		hTcxCfg->na_scale = scaleTcxTable[i].scale;
		move16();
		BREAK;
		}
		}
		}

		IF( tcxonly )
		{
		InitPsychLPC_fx( sr_core, L_frame, hTcxCfg );
		}
		ELSE
		{
		hTcxCfg->psychParamsCurrent = NULL;
		}

		return;
		}
		#endif

		#ifdef IVAS_FLOAT_FIXED
		void init_tcx_window_cfg_fx(
		TCX_CONFIG_HANDLE hTcxCfg, /* i/o: TCX Config handle */
		@@ -1529,7 +1753,7 @@ void init_tcx_cfg_fx(
		const Word16 bwidth,
		const Word16 L_frameTCX,
		const Word16 fscale,
		const Word16 preemph_fac,
		const Word16 preemph_fac, /Q15/
		const Word16 tcxonly,
		const Word16 rf_mode,
		const Word16 igf,

lib_com/ivas_prot.h

+23 −1

Original line number	Diff line number	Diff line
		@@ -3034,7 +3034,21 @@ void QuantizeTCXSpectrum(
		float gain_tcx, / o : global gain */
		int16_t prm[] /* o : tcx parameters */
		);

		#ifdef IVAS_FLOAT_FIXED
		void EstimateStereoTCXNoiseLevel_fx(
		Encoder_State *sts, / i : state handle */
		Word32 q_spectrum[CPE_CHANNELS][NB_DIV], / i : quantized MDCT spectrum */
		Word16 gain_tcx[][NB_DIV], /* i : global gain */
		Word16 gain_tcx_e, /* i : global gain exponent */
		Word16 L_frame[][NB_DIV], /* i : frame length */
		Word16 noiseFillingBorder[][NB_DIV], /* i : noise filling border */
		Word16 hm_active[][NB_DIV], /* i : flag indicating if the harmonic model is active */
		const Word16 ignore_chan[], /* i : flag indicating whether the channel should be ignored */
		Word16 fac_ns[][NB_DIV], /* o : noise filling level */
		Word16 param_core[][NB_DIV * NPRM_DIV], /* o : quantized noise filling level */
		const Word16 MCT_flag /* i : hMCT handle allocated (1) or not (0) */
		);
		#endif
		void EstimateStereoTCXNoiseLevel(
		Encoder_State *sts, / i : state handle */
		float q_spectrum[CPE_CHANNELS][NB_DIV], / i : quantized MDCT spectrum */
		@@ -4081,6 +4095,14 @@ void ivas_mdct_quant_coder(
		const int16_t MCT_flag /* i : hMCT handle allocated (1) or not (0) */
		);

		void ivas_mdct_quant_coder_fx(
		CPE_ENC_HANDLE hCPE, /* i/o: Encoder CPE handle */
		int16_t tnsBits[CPE_CHANNELS][NB_DIV], /* i : bits needed for TNS parameters */
		int16_t tnsSize[CPE_CHANNELS][NB_DIV], /* i : size of TNS */
		int16_t p_param[CPE_CHANNELS][NB_DIV], /* i : pointer to parameter array */
		const int16_t MCT_flag /* i : hMCT handle allocated (1) or not (0) */
		);

		void apply_MCT_enc(
		MCT_ENC_HANDLE hMCT, /* i/o: MCT encoder structure */
		Encoder_State *sts, / i/o: encoder state structure */

lib_com/ivas_prot_fx.h

+30 −1

Original line number	Diff line number	Diff line
		@@ -2613,7 +2613,6 @@ void apply_MCT_enc_fx(
		Word32 inv_mdst_spectrum[MCT_MAX_CHANNELS][NB_DIV], / i/o: inverse MDST spectrum */
		const Word16 nchan /* i : number of channels */
		);
		#endif

		void ivas_spar_config_fx(
		Word32 ivas_total_brate, /* i : codec total bitrate */
		@@ -2700,4 +2699,34 @@ void stereo_dft_enc_process_fx(
		const Word16 vad_hover_flag[], /* i : VAD hangover flags */
		const Word16 input_frame /* i : input frame length */
		);

		void spectral_balancer_fx16(
		Word16 signal, / i/o : signal Qx */
		Word16 mem, / i/o : mem Qx */
		const Word16 lg, /* i : input signal length */
		const Word16 coeff_set /* i : coefficient set */
		);

		void stereo_icBWE_preproc_fx(
		CPE_ENC_HANDLE hCPE, /* i/o: CPE encoder structure */
		const Word16 input_frame, /* i : input frame length */
		Word16 shb_speech_nonref[], /* o : SHB speech non-ref channel */
		Word16 q_shb_speech_nonref /* i : Q SHB speech non-ref channel */
		);

		#endif

		void QuantizeSpectrum_ivas_fx(
		Encoder_State st, / i/o: encoder state structure */
		const float A[], /* i : quantized coefficients NxAz_q[M+1] */
		const Word16 Aqind[], /* i : frame-independent quantized coefficients (M+1) */
		float gainlpc[], /* i : MDCT gains of the previous frame */
		float synth[], /* o : synthesis buffer */
		const int16_t nb_bits, /* i : bit budget */
		const int16_t tnsSize, /* i : number of tns parameters put into prm */
		int16_t prm[], /* o : tcx parameters */
		const int16_t frame_cnt, /* i : frame counter in the super_frame */
		CONTEXT_HM_CONFIG hm_cfg, / i : HM configuration */
		const int16_t vad_hover_flag /* i : VAD hangover flag */
		);
		#endif

lib_com/prot.h

+52 −0

Original line number	Diff line number	Diff line
		@@ -6859,11 +6859,24 @@ void init_coder_ace_plus(
		const int16_t MCT_flag /* i : hMCT handle allocated (1) or not (0)*/
		);

		#ifdef IVAS_FLOAT_FIXED
		void init_coder_ace_plus_ivas_fx(
		Encoder_State st, / i : Encoder state */
		const Word32 last_total_brate, /* i : last total bitrate */
		const Word16 MCT_flag /* i : hMCT handle allocated (1) or not (0) */
		);
		#endif

		void core_coder_reconfig(
		Encoder_State st, / i/o: encoder state structure */
		const int32_t last_total_brate /* i : last total bitrate */
		);

		#ifdef IVAS_FLOAT_FIXED
		void core_coder_reconfig_ivas_fx(
		Encoder_State *st );
		#endif

		void core_coder_mode_switch(
		Encoder_State st, / i/o: encoder state structure */
		const int32_t last_total_brate, /* i : last bitrate */
		@@ -9926,6 +9939,15 @@ int16_t getTcxonly_ivas(
		const int16_t is_ism_format /* i : flag indicating ISM format */
		);

		#ifdef IVAS_FLOAT_FIXED
		Word16 getTcxonly_ivas_fx(
		const Word16 element_mode, /* i : IVAS element mode */
		const Word32 total_brate, /* i : total bitrate */
		const Word16 MCT_flag, /* i : hMCT handle allocated (1) or not (0)*/
		const Word16 is_ism_format /* i : flag indicating ISM format */
		);
		#endif

		int16_t getTnsAllowed(
		const int32_t total_brate, /* i : total bitrate */
		const int16_t igf, /* i : flag indicating IGF activity*/
		@@ -10071,6 +10093,16 @@ void IGFEncSetMode(
		const int16_t rf_mode /* i : flag to signal the RF mode */
		);

		#ifdef IVAS_FLOAT_FIXED
		void IGFEncSetMode_ivas_fx(
		const IGF_ENC_INSTANCE_HANDLE hIGFEnc, /* i/o: instance handle of IGF Encoder */
		const Word32 total_brate, /* i : encoder total bitrate */
		const Word16 bwidth, /* i : encoder audio bandwidth */
		const Word16 element_mode, /* i : IVAS element mode */
		const Word16 rf_mode /* i : flag to signal the RF mode */
		);
		#endif

		/! r: number of bits written per frame /
		int16_t IGFEncWriteBitstream(
		const IGF_ENC_INSTANCE_HANDLE hIGFEnc, /* i : instance handle of IGF Encoder */
		@@ -10286,4 +10318,24 @@ void init_tcx_cfg(
		const int16_t MCT_flag /* i : hMCT handle allocated (1) or not (0) */
		);

		#ifdef IVAS_FLOAT_FIXED
		void init_tcx_cfg_ivas_fx(
		TCX_CONFIG_HANDLE hTcxCfg,
		const Word32 total_brate,
		const Word32 sr_core,
		const Word32 input_Fs,
		const Word16 L_frame,
		const Word16 bwidth,
		const Word16 L_frameTCX,
		const Word16 fscale,
		const Word16 preemph_fac,
		const Word16 tcxonly,
		const Word16 rf_mode,
		const Word16 igf,
		const Word16 infoIGFStopFreq,
		const Word16 element_mode,
		const Word16 ini_frame,
		const Word16 MCT_flag );
		#endif

		#endif

lib_com/prot_fx.h

+5 −1

Original line number	Diff line number	Diff line
		@@ -3319,6 +3319,7 @@ void InitTnsConfiguration(
		const Word16 element_mode,
		const Word16 is_mct );

		#ifdef IVAS_FLOAT_FIXED
		void InitTnsConfiguration_ivas_fx(
		const Word16 bwidth,
		const Word16 frameLength,
		@@ -3327,6 +3328,7 @@ void InitTnsConfiguration_ivas_fx(
		const Word32 total_brate,
		const Word16 element_mode,
		const Word16 is_mct );
		#endif

		/** Modify spectrum using TNS filter.
		* Modifies spectrum unsing TNS filter defined by pTnsData.
		@@ -4028,6 +4030,7 @@ void InitTnsConfigs(
		const Word16 element_mode,
		const Word16 is_mct );

		#ifdef IVAS_FLOAT_FIXED
		void InitTnsConfigs_ivas_fx(
		const Word16 bwidth,
		const Word16 L_frame,
		@@ -4036,6 +4039,7 @@ void InitTnsConfigs_ivas_fx(
		const Word32 total_brate,
		const Word16 element_mode,
		const Word16 is_mct );
		#endif

		#define IVAS_CODE_TCX_UTIL
		#ifdef IVAS_CODE_TCX_UTIL
		@@ -6345,7 +6349,7 @@ void init_tcx_cfg_fx(
		const Word16 bwidth,
		const Word16 L_frameTCX,
		const Word16 fscale,
		const Word16 preemph_fac,
		const Word16 preemph_fac, /Q15/
		const Word16 tcxonly,
		const Word16 rf_mode,
		const Word16 igf,