maintenance of the SBA SPAR functions; under #define SBA_SPAR_HARM (f9090347) · Commits · IVAS Codec Public Collaboration / IVAS Codec

lib_com/ivas_cov_smooth.c

+37 −3

Original line number	Diff line number	Diff line
		@@ -169,22 +169,36 @@ void ivas_spar_covar_smooth_enc_close(

		static void ivas_compute_smooth_cov(
		ivas_cov_smooth_state_t *hCovState,
		#ifndef SBA_SPAR_HARM
		ivas_cov_smooth_in_buf_t *pIn_buf,
		#endif
		ivas_filterbank_t *pFb,
		float *pCov_buf[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float *pPrior_cov_buf[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		const float fac,
		const int16_t start_band,
		const int16_t end_band )
		const int16_t end_band
		#ifdef SBA_SPAR_HARM
		,
		const int16_t num_ch,
		const int16_t transient_det
		#endif
		)
		{
		int16_t i, j, k;
		int16_t prev_idx = hCovState->prior_bank_idx;
		#ifndef SBA_SPAR_HARM
		int16_t num_ch = pIn_buf->num_ch;
		#endif
		float factor = 0;

		assert( end_band <= pFb->filterbank_num_bands );

		#ifdef SBA_SPAR_HARM
		if ( prev_idx == -1 \|\| transient_det == 1 )
		#else
		if ( prev_idx == -1 \|\| pIn_buf->reset_cov == 1 )
		#endif
		{
		for ( i = 0; i < num_ch; i++ )
		{
		@@ -229,22 +243,42 @@ static void ivas_compute_smooth_cov(

		void ivas_cov_smooth_process(
		ivas_cov_smooth_state_t hCovState, / i/o: Covariance state handle */
		#ifdef SBA_SPAR_HARM
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		#else
		ivas_cov_smooth_in_buf_t *pIn_buf,
		#endif
		ivas_filterbank_t pFb, / i/o: FB handle */
		const int16_t start_band,
		const int16_t end_band )
		const int16_t end_band
		#ifdef SBA_SPAR_HARM
		,
		const int16_t num_ch,
		const int16_t transient_det
		#endif
		)
		{
		int16_t i, j;
		#ifndef SBA_SPAR_HARM
		int16_t num_ch = pIn_buf->num_ch;
		#endif
		int16_t num_bands = end_band - start_band;

		ivas_compute_smooth_cov( hCovState, pIn_buf, pFb, pIn_buf->cov_real, hCovState->pPrior_cov_real, 1e-20f, start_band, end_band );
		#ifdef SBA_SPAR_HARM
		ivas_compute_smooth_cov( hCovState, pFb, cov_real, hCovState->pPrior_cov_real, 1e-20f, start_band, end_band, num_ch, transient_det );
		#else
		ivas_compute_smooth_cov( hCovState, pFb, pIn_buf->cov_real, hCovState->pPrior_cov_real, 1e-20f, start_band, end_band, num_ch, transient_det );
		#endif

		for ( i = 0; i < num_ch; i++ )
		{
		for ( j = 0; j < num_ch; j++ )
		{
		#ifdef SBA_SPAR_HARM
		mvr2r( &cov_real[i][j][start_band], &hCovState->pPrior_cov_real[i][j][start_band], num_bands );
		#else
		mvr2r( &pIn_buf->cov_real[i][j][start_band], &hCovState->pPrior_cov_real[i][j][start_band], num_bands );
		#endif
		}
		}

lib_com/ivas_prot.h

+34 −1

Original line number	Diff line number	Diff line
		@@ -3910,9 +3910,20 @@ void ivas_spar_md_enc_close(
		ivas_error ivas_spar_md_enc_process(
		ivas_spar_md_enc_state_t hMdEnc, / i/o: SPAR MD encoder handle */
		const ENCODER_CONFIG_HANDLE hEncoderConfig, /* i : configuration structure */
		#ifdef SBA_SPAR_HARM
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float *cov_dtx_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		#else
		ivas_spar_md_enc_in_buf_t *pIn_buf,
		#endif
		BSTR_ENC_HANDLE hMetaData, /* i/o: MetaData handle */
		#ifdef SBA_SPAR_HARM
		int16_t dtx_vad,
		const int16_t bwidth,
		const int16_t nchan_inp,
		#else
		const int16_t dtx_silence_mode,
		#endif
		const int16_t sba_order /* i : Ambisonic (SBA) order */
		);

		@@ -4048,12 +4059,25 @@ void ivas_spar_covar_enc_close(

		void ivas_enc_cov_handler_process(
		ivas_enc_cov_handler_state_t hCovEnc, / i/o: SPAR Covar. encoder handle */
		#ifdef SBA_SPAR_HARM
		float **ppIn_FR_real,
		float **ppIn_FR_imag,
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float *cov_dtx_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		#else
		ivas_enc_cov_handler_in_buf_t *pIn_buf,
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float *cov_dtx_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		#endif
		ivas_filterbank_t pFb, / i/o: FB handle */
		const int16_t start_band,
		const int16_t end_band );
		const int16_t end_band
		#ifdef SBA_SPAR_HARM
		,const int16_t nchan_inp,
		const int16_t dtx_vad,
		const int16_t transient_det
		#endif
		);

		ivas_error ivas_spar_covar_smooth_enc_open(
		ivas_cov_smooth_state_t *hCovState, / i/o: SPAR Covar. smoothing handle */
		@@ -4069,10 +4093,19 @@ void ivas_spar_covar_smooth_enc_close(

		void ivas_cov_smooth_process(
		ivas_cov_smooth_state_t hCovState, / i/o: Covariance state handle */
		#ifdef SBA_SPAR_HARM
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		#else
		ivas_cov_smooth_in_buf_t *pIn_buf,
		#endif
		ivas_filterbank_t pFb, / i/o: FB handle */
		const int16_t start_band,
		const int16_t end_band
		#ifdef SBA_SPAR_HARM
		,
		const int16_t num_ch,
		const int16_t transient_det
		#endif
		);

		/* Transient detector module */

lib_com/ivas_spar_com.c

+21 −19

Original line number	Diff line number	Diff line
		@@ -75,6 +75,7 @@
		* Static functions declaration
		------------------------------------------------------------------------------------------/


		static void ivas_get_pred_coeffs( float *pppCov_mat_re[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH], float ppPred_coeffs_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS], float ppDM_Fv_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS], const int16_t in_chans, const int16_t start_band, const int16_t end_band, const int16_t active_w, const int16_t dtx_vad, const int16_t from_dirac );

		static void ivas_reorder_array( float in_re[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH][IVAS_MAX_NUM_BANDS], const int16_t in_chans, const int16_t order[IVAS_SPAR_MAX_CH], float ***mixer_mat, const int16_t start_band, const int16_t end_band );
		@@ -448,7 +449,7 @@ int16_t ivas_get_sba_num_TCs(
		-----------------------------------------------------------------------------------------/

		static void ivas_get_pred_coeffs(
		float *pppCov_mat_re[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float ppPred_coeffs_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS],
		float ppDM_Fv_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS],
		const int16_t in_chans,
		@@ -473,7 +474,7 @@ static void ivas_get_pred_coeffs(
		set_zero( pPred_temp, IVAS_MAX_NUM_BANDS );
		for ( k = start_band; k < end_band; k++ )
		{
		div_factor[k] = max( 1e-20f, pppCov_mat_re[0][0][k] );
		div_factor[k] = max( 1e-20f, cov_real[0][0][k] );
		div_factor[k] = 1 / div_factor[k];
		}

		@@ -481,7 +482,7 @@ static void ivas_get_pred_coeffs(
		{
		for ( k = start_band; k < end_band; k++ )
		{
		ppPred_coeffs_re[i][k] = pppCov_mat_re[i + 1][0][k] * div_factor[k];
		ppPred_coeffs_re[i][k] = cov_real[i + 1][0][k] * div_factor[k];

		IVAS_CALCULATE_SQ_ABS_N( ppPred_coeffs_re[i][k], abs_value );

		@@ -519,7 +520,7 @@ static void ivas_get_pred_coeffs(
		{
		for ( k = start_band; k < end_band; k++ )
		{
		IVAS_CALCULATE_SQ_ABS_N( pppCov_mat_re[i][0][k], abs_value );
		IVAS_CALCULATE_SQ_ABS_N( cov_real[i][0][k], abs_value );
		dm_alpha[k] += abs_value;
		}
		}
		@@ -535,7 +536,7 @@ static void ivas_get_pred_coeffs(
		{
		for ( k = start_band; k < end_band; k++ )
		{
		dm_v_re[i][k] = pppCov_mat_re[i + 1][0][k] * div_factor[k];
		dm_v_re[i][k] = cov_real[i + 1][0][k] * div_factor[k];
		}
		}

		@@ -558,7 +559,7 @@ static void ivas_get_pred_coeffs(
		{
		float re;

		IVAS_RMULT_FLOAT( pppCov_mat_re[j + 1][k][b], dm_v_re[k - 1][b], re );
		IVAS_RMULT_FLOAT( cov_real[j + 1][k][b], dm_v_re[k - 1][b], re );
		real[j] += re;
		}
		}
		@@ -570,7 +571,7 @@ static void ivas_get_pred_coeffs(
		dm_beta_re += re;
		}

		dm_w = pppCov_mat_re[0][0][b];
		dm_w = cov_real[0][0][b];
		den_f = max( dm_w, 1e-20f );
		passive_g = dm_alpha[b] / den_f;

		@@ -581,7 +582,7 @@ static void ivas_get_pred_coeffs(

		for ( k = 1; k < in_chans; k++ )
		{
		dm_y += pppCov_mat_re[k][k][b];
		dm_y += cov_real[k][k][b];
		}
		den_f = max( dm_y, 1e-20f );
		den_f = max( den_f, w_norm_fac * dm_w );
		@@ -634,7 +635,7 @@ static void ivas_get_pred_coeffs(
		-----------------------------------------------------------------------------------------/

		static void ivas_get_Wscaling_factor(
		float *pppCov_mat_re[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float pred_coeffs_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS],
		float ***mixer_mat,
		const int16_t start_band,
		@@ -667,9 +668,9 @@ static void ivas_get_Wscaling_factor(
		{
		float Gw_sq, g_sq = 0;

		ivas_calc_post_pred_per_band( pppCov_mat_re, mixer_mat, num_ch, pNum_dmx[b * bands_bw], b, postpred_cov_re );
		ivas_calc_post_pred_per_band( cov_real, mixer_mat, num_ch, pNum_dmx[b * bands_bw], b, postpred_cov_re );

		Gw_sq = pppCov_mat_re[0][0][b] / max( postpred_cov_re[0][0], IVAS_FLT_EPS );
		Gw_sq = cov_real[0][0][b] / max( postpred_cov_re[0][0], IVAS_FLT_EPS );

		for ( ch = 0; ch < num_ch - 1; ch++ )
		{
		@@ -861,7 +862,7 @@ static void ivas_reorder_array(
		-----------------------------------------------------------------------------------------/

		static void ivas_calc_post_pred_per_band(
		float *pppCov_mat_re[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float ***mixer_mat,
		const int16_t num_ch,
		const int16_t num_dmx,
		@@ -898,7 +899,7 @@ static void ivas_calc_post_pred_per_band(
		temp_mat[i][j] = 0;
		for ( k = 0; k < num_ch; k++ )
		{
		IVAS_RMULT_FLOAT( pppCov_mat_re[i][k][band_idx], dmx_mat_conj[k][j], tmp_re );
		IVAS_RMULT_FLOAT( cov_real[i][k][band_idx], dmx_mat_conj[k][j], tmp_re );
		temp_mat[i][j] += tmp_re;
		}
		}
		@@ -1239,7 +1240,7 @@ static void ivas_calc_c_coeffs_per_band(

		void ivas_calc_c_p_coeffs(
		ivas_spar_md_t *pSparMd,
		float *pppCov_mat_re[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		const int16_t i_ts,
		float ***mixer_mat,
		const int16_t num_ch,
		@@ -1254,7 +1255,8 @@ void ivas_calc_c_p_coeffs(

		if ( num_dmx != num_ch )
		{
		ivas_calc_post_pred_per_band( pppCov_mat_re, mixer_mat, num_ch, num_dmx, band_idx, postpred_cov_re );
		ivas_calc_post_pred_per_band( cov_real, mixer_mat, num_ch, num_dmx, band_idx, postpred_cov_re );

		if ( num_dmx != 1 )
		{
		ivas_calc_c_coeffs_per_band( pSparMd, i_ts, postpred_cov_re, num_ch, num_dmx, band_idx, dtx_vad );
		@@ -1524,7 +1526,7 @@ static int16_t ivas_is_mat_inv(
		-----------------------------------------------------------------------------------------/

		void ivas_compute_spar_params(
		float *pppCov_mat_re[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		float dm_fv_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS],
		const int16_t i_ts,
		float ***mixer_mat,
		@@ -1542,7 +1544,7 @@ void ivas_compute_spar_params(
		float pred_coeffs_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS];
		int16_t b, i, ndm;

		ivas_get_pred_coeffs( pppCov_mat_re, pred_coeffs_re, dm_fv_re, num_ch, start_band, end_band, active_w, dtx_vad, from_dirac );
		ivas_get_pred_coeffs( cov_real, pred_coeffs_re, dm_fv_re, num_ch, start_band, end_band, active_w, dtx_vad, from_dirac );

		#ifdef SPAR_HOA_DBG
		/*fprintf(stderr, "\n\n Prediction Coefficients:\n");
		@@ -1573,7 +1575,7 @@ void ivas_compute_spar_params(
		fprintf(stderr, "\n\n");*/
		#endif

		ivas_get_Wscaling_factor( pppCov_mat_re, pred_coeffs_re, mixer_mat, start_band, end_band, dtx_vad, num_ch,
		ivas_get_Wscaling_factor( cov_real, pred_coeffs_re, mixer_mat, start_band, end_band, dtx_vad, num_ch,
		hSparCfg->num_dmx_chans_per_band, bands_bw, active_w, pWscale );

		for ( b = start_band; b < end_band; b++ )
		@@ -1596,7 +1598,7 @@ void ivas_compute_spar_params(

		if ( ndm != num_ch )
		{
		ivas_calc_c_p_coeffs( hSparMd, pppCov_mat_re, i_ts, mixer_mat, num_ch, ndm, b, dtx_vad, 1, 0 );
		ivas_calc_c_p_coeffs( hSparMd, cov_real, i_ts, mixer_mat, num_ch, ndm, b, dtx_vad, 1, 0 );

		#ifdef SPAR_HOA_DBG
		/* if (b == 0) */

lib_com/ivas_stat_com.h

+3 −1

Original line number	Diff line number	Diff line
		@@ -351,6 +351,7 @@ typedef struct ivas_cov_smooth_cfg_t

		} ivas_cov_smooth_cfg_t;

		#ifndef SBA_SPAR_HARM
		typedef struct ivas_cov_smooth_in_buf_t
		{
		float *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH];
		@@ -358,6 +359,7 @@ typedef struct ivas_cov_smooth_in_buf_t
		int16_t reset_cov;

		} ivas_cov_smooth_in_buf_t;
		#endif

		/* SPAR bitrate constant table structure */
		typedef struct ivas_spar_br_table_t
		@@ -371,7 +373,7 @@ typedef struct ivas_spar_br_table_t
		ivas_spar_pmx_strings_t dmx_str;
		int16_t active_w;
		int16_t tmode;
		int32_t evs_brs[FOA_CHANNELS][3];
		int32_t evs_brs[FOA_CHANNELS][3]; // VE: rename to core_brs
		int16_t q_lvls[MAX_QUANT_STRATS][NUM_MD_Q_COEFS_SET];
		int16_t td_ducking;
		int16_t agc_bits_ch_idx; /* 0-3, Indicates core-coder channel index from which AGC bits have been taken from*/

lib_com/options.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -153,6 +153,7 @@
		#define ISM_BITRATE_SWITCHING /* Issue 115: Support for Bitrate Switching in ISM */


		#define SBA_SPAR_HARM /* maintenance of the SBA SPAR functions */


		/* ################## End DEVELOPMENT switches ######################### */

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