ivas_masa_dec and subfunctions converted to fixed point. (77fc31de) · Commits · SA4 / Audio / IVAS BASOP

lib_com/ivas_masa_com.c

+205 −2

Original line number	Diff line number	Diff line
		@@ -979,6 +979,113 @@ uint16_t index_theta_phi_16(
		return idx_sph;
		}

		#ifdef IVAS_FLOAT_FIXED
		/*-------------------------------------------------------------------------
		* index_theta_phi_16_fx()
		*
		*
		------------------------------------------------------------------------/

		/! r: output index for direction /
		UWord16 index_theta_phi_16_fx(
		Word32 p_theta, / i/o: input elevation to be indexed */
		Word32 p_phi, / i/o: input azimuth to be indexed */
		const SPHERICAL_GRID_DATA gridData / i : generated grid data */
		)
		{
		float abs_theta;
		int16_t sign_th, id_phi, id_th;
		uint16_t idx_sph;
		uint16_t cum_n;
		float theta_hat, phi_hat;
		float theta, phi;

		float p_theta_flt, p_phi_flt;
		float p_theta_flt_tmp = fix_to_float(*p_theta, Q22);
		float p_phi_flt_tmp = fix_to_float(*p_phi, Q22);
		p_theta_flt = &p_theta_flt_tmp;
		p_phi_flt = &p_phi_flt_tmp;

		theta = *p_theta_flt;
		phi = *p_phi_flt;
		phi_hat = 0;
		theta_hat = 0;
		phi = phi + 180;

		if ( theta < 0 )
		{
		abs_theta = -theta;
		sign_th = -1;
		}
		else
		{
		abs_theta = theta;
		sign_th = 1;
		}

		id_th = quantize_theta_masa( abs_theta, gridData->no_theta, &theta_hat );
		if ( gridData->no_theta > 1 )
		{
		if ( gridData->no_phi[id_th] > 1 )
		{
		id_phi = quantize_phi_masa( phi, ( id_th % 2 == 1 ), &phi_hat, gridData->no_phi[id_th] );
		}
		else
		{
		id_phi = 0;
		phi_hat = 180;
		}
		}
		else
		{
		id_phi = quantize_phi_masa( phi, ( id_th % 2 == 1 ), &phi_hat, gridData->no_phi[id_th] );
		}
		p_theta_flt = sign_th theta_hat;
		*p_phi_flt = phi_hat - 180;

		/* Starting from Equator, alternating positive and negative */
		if ( id_th == 0 )
		{
		idx_sph = id_phi;
		}
		else
		{
		if ( id_th == gridData->no_theta - 1 )
		{
		idx_sph = 65534 + ( sign_th < 0 );
		}
		else
		{
		theta = MASA_ANGLE_AT_EQUATOR * (float) ( id_th + 0.5f );
		if ( id_th == 1 )
		{
		cum_n = 2 * (uint16_t) ceilf( MASA_NTOT2_FAC * ( sinf( theta ) - MASA_ASIN_OFFSET ) );
		}
		else
		{
		cum_n = 2 * (uint16_t) roundf( MASA_NTOT2_FAC * ( sinf( theta ) - MASA_ASIN_OFFSET ) );
		}

		cum_n += gridData->no_phi[0];

		if ( sign_th > 0 )
		{
		cum_n -= 2 * gridData->no_phi[id_th];
		}
		else
		{
		cum_n -= gridData->no_phi[id_th];
		}
		idx_sph = cum_n + id_phi;
		}
		}

		p_theta = float_to_fix(p_theta_flt, Q22);
		p_phi = float_to_fix(p_phi_flt, Q22);

		return idx_sph;
		}
		#endif

		/*-------------------------------------------------------------------------
		* quantize_phi_masa()
		@@ -1373,8 +1480,8 @@ void deindex_sph_idx_fx(
		}
		}
		}
		theta_fx = theta ( 1 << 22 );
		phi_fx = phi ( 1 << 22 );
		theta_fx = (Word32)(theta ( 1 << 22 ));
		phi_fx = (Word32)(phi ( 1 << 22 ));
		return;
		}

		@@ -1584,6 +1691,50 @@ void ivas_omasa_modify_masa_energy_ratios(
		return;
		}

		#ifdef IVAS_FLOAT_FIXED
		/*---------------------------------------------------------------
		* ivas_omasa_modify_masa_energy_ratios_fx()
		*
		* Updates energy ratios by taking into account the MASA content contribution
		* to the total audio scene
		---------------------------------------------------------------/

		void ivas_omasa_modify_masa_energy_ratios_fx(
		IVAS_QMETADATA_HANDLE hQMetaData, /* i/o: q_metadata handle */
		const Word32 masa_to_total_energy_ratio_fx[MAX_PARAM_SPATIAL_SUBFRAMES][MASA_MAXIMUM_CODING_SUBBANDS] /* Q30 */ )
		{
		Word16 i, m, d, b;

		FOR( m = 0; m < MAX_PARAM_SPATIAL_SUBFRAMES; m++ )
		{
		IF( EQ_16( hQMetaData->q_direction[0].cfg.nblocks, 1 ) )
		{
		i = 0;
		move16();
		}
		ELSE
		{
		i = m;
		move16();
		}

		FOR( b = 0; b < hQMetaData->q_direction[0].cfg.nbands; b++ )
		{
		FOR( d = 0; d < hQMetaData->no_directions; d++ )
		{
		hQMetaData->q_direction[d].band_data[b].energy_ratio_fx[m] = L_shl(
		Mpy_32_32( hQMetaData->q_direction[d].band_data[b].energy_ratio_fx[m],
		masa_to_total_energy_ratio_fx[i][b] ),
		1 ); // Q30 + Q30 - 31 = Q29 + 1 = Q30
		move32();
		}
		}
		}

		return;
		}
		#endif


		/*---------------------------------------------------------------
		* distribute_evenly_ism()
		@@ -1722,3 +1873,55 @@ int32_t calculate_cpe_brate_MASA_ISM(

		return cpe_brate;
		}


		#ifdef IVAS_FLOAT_FIXED
		/*---------------------------------------------------------------
		* calculate_cpe_brate_MASA_ISM_fx()
		*
		* Calculates bitrate for MASA_ISM mode that is not used for separated objects,
		* * but for the CPE part (metadata included)
		---------------------------------------------------------------/

		/! r: CPE bitrate value /
		Word32 calculate_cpe_brate_MASA_ISM_fx(
		const ISM_MODE ism_mode, /* i : ism mode */
		const Word32 ivas_total_brate, /* i : IVAS total bitrate */
		const Word16 nchan_ism /* i : number of objects */
		)
		{
		Word32 cpe_brate;
		Word16 k, sce_id;

		k = 0;
		move16();

		WHILE ( LT_16(k, SIZE_IVAS_BRATE_TBL) && NE_32(ivas_total_brate, ivas_brate_tbl[k]) )
		{
		k = add(k, 1);
		}

		IF ( EQ_16(ism_mode, ISM_MASA_MODE_PARAM_ONE_OBJ) \|\| EQ_16(ism_mode, ISM_MASA_MODE_MASA_ONE_OBJ) )
		{
		cpe_brate = L_sub(ivas_total_brate, sep_object_brate[k - 2][0]); /* take data from the first column */
		}
		ELSE IF ( EQ_16(ism_mode, ISM_MASA_MODE_DISC) )
		{
		cpe_brate = ivas_total_brate;
		move32();

		FOR ( sce_id = 0; sce_id < nchan_ism; sce_id++ )
		{
		cpe_brate = L_sub(cpe_brate, sep_object_brate[k - 2][nchan_ism - 1]);
		}
		}
		ELSE
		{
		cpe_brate = ivas_total_brate;
		move32();
		}

		return cpe_brate;
		}

		#endif

lib_com/ivas_prot_fx.h

+23 −0

Original line number	Diff line number	Diff line
		@@ -120,6 +120,29 @@ Word16 valid_ratio_index_fx(
		const Word16 len /* i : vector length */
		);

		UWord16 index_theta_phi_16_fx(
		Word32 p_theta, / i/o: input elevation to be indexed */
		Word32 p_phi, / i/o: input azimuth to be indexed */
		const SPHERICAL_GRID_DATA gridData / i : generated grid data */
		);

		ivas_error ivas_masa_decode_fx(
		Decoder_Struct st_ivas, / i/o: IVAS decoder struct */
		Decoder_State st, / i/o: decoder state structure */
		Word16 nb_bits_read / o : number of bits read */
		);

		void ivas_omasa_modify_masa_energy_ratios_fx(
		IVAS_QMETADATA_HANDLE hQMetaData, /* i/o: q_metadata handle */
		const Word32 masa_to_total_energy_ratio_fx[MAX_PARAM_SPATIAL_SUBFRAMES][MASA_MAXIMUM_CODING_SUBBANDS] // Q30
		);

		Word32 calculate_cpe_brate_MASA_ISM_fx(
		const ISM_MODE ism_mode, /* i : ism mode */
		const Word32 ivas_total_brate, /* i : IVAS total bitrate */
		const Word16 nchan_ism /* i : number of objects */
		);

		Word16 ivas_jbm_dec_get_num_tc_channels_fx(
		Decoder_Struct st_ivas / i : IVAS decoder handle */
		);

lib_dec/ivas_jbm_dec.c

+218 −1

Original line number	Diff line number	Diff line
		@@ -353,10 +353,117 @@ ivas_error ivas_jbm_dec_tc(
		{
		st = ( st_ivas->nSCE > 0 ) ? st_ivas->hSCE[0]->hCoreCoder[0] : st_ivas->hCPE[0]->hCoreCoder[0];

		#ifdef IVAS_FLOAT_FIXED
		// Float to fix conversion starts here.
		FOR( Word32 l = 0; l < st_ivas->nchan_ism; l++ )
		{
		st_ivas->hMasaIsmData->q_azimuth_old_fx[l] = float_to_fix( st_ivas->hMasaIsmData->q_azimuth_old[l], Q22 );
		}
		IF( st_ivas->hMasa->hMasaLfeSynth != NULL )
		{
		FOR( Word32 j = 0; j < MAX_PARAM_SPATIAL_SUBFRAMES; j++ )
		{
		st_ivas->hMasa->hMasaLfeSynth->lfeToTotalEnergyRatio_fx[j] = float_to_fix16( st_ivas->hMasa->hMasaLfeSynth->lfeToTotalEnergyRatio[j], Q14 );
		}
		}
		IF( st_ivas->hSpatParamRendCom != NULL )
		{
		FOR( Word16 i = 0; i < st_ivas->hSpatParamRendCom->dirac_md_buffer_length; i++ )
		{
		FOR( Word16 j = 0; j < st_ivas->hSpatParamRendCom->num_freq_bands; j++ )
		{
		st_ivas->hSpatParamRendCom->diffuseness_vector_fx[i][j] = float_to_fix( st_ivas->hSpatParamRendCom->diffuseness_vector[i][j], 30 );
		st_ivas->hSpatParamRendCom->energy_ratio1_fx[i][j] = float_to_fix( st_ivas->hSpatParamRendCom->energy_ratio1[i][j], 30 );
		IF( EQ_16( st_ivas->hQMetaData->no_directions, 2 ) )
		{
		st_ivas->hSpatParamRendCom->energy_ratio2_fx[i][j] = float_to_fix( st_ivas->hSpatParamRendCom->energy_ratio2[i][j], 30 );
		st_ivas->hSpatParamRendCom->spreadCoherence2_fx[i][j] = float_to_fix16( st_ivas->hSpatParamRendCom->spreadCoherence2[i][j], 15 );
		}
		st_ivas->hSpatParamRendCom->surroundingCoherence_fx[i][j] = float_to_fix16( st_ivas->hSpatParamRendCom->surroundingCoherence[i][j], 15 );
		st_ivas->hSpatParamRendCom->spreadCoherence_fx[i][j] = float_to_fix16( st_ivas->hSpatParamRendCom->spreadCoherence[i][j], 15 );
		}
		}
		}
		// Float to fix conversion ends here.

		IF( ( error = ivas_masa_decode_fx( st_ivas, st, &nb_bits_metadata[0] ) ) != IVAS_ERR_OK )
		{
		return error;
		}

		// Fix to float conversion starts here.
		IF( st_ivas->hSpatParamRendCom != NULL )
		{
		FOR( Word16 i = 0; i < st_ivas->hSpatParamRendCom->dirac_md_buffer_length; i++ )
		{
		FOR( Word16 j = 0; j < st_ivas->hSpatParamRendCom->num_freq_bands; j++ )
		{
		st_ivas->hSpatParamRendCom->energy_ratio1[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->energy_ratio1_fx[i][j], 30 );
		st_ivas->hSpatParamRendCom->diffuseness_vector[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->diffuseness_vector_fx[i][j], 30 );
		IF( EQ_16( st_ivas->hQMetaData->no_directions, 2 ) )
		{
		st_ivas->hSpatParamRendCom->energy_ratio2[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->energy_ratio2_fx[i][j], 30 );
		st_ivas->hSpatParamRendCom->spreadCoherence2[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->spreadCoherence2_fx[i][j], 15 );
		}
		st_ivas->hSpatParamRendCom->surroundingCoherence[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->surroundingCoherence_fx[i][j], 15 );
		st_ivas->hSpatParamRendCom->spreadCoherence[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->spreadCoherence_fx[i][j], 15 );
		}
		}
		}
		FOR( Word16 d = 0; d < max( st_ivas->hMasa->config.numberOfDirections, st_ivas->hQMetaData->no_directions ); d++ )
		{
		FOR( Word16 j = 0; j < max( st_ivas->hMasa->config.numCodingBands, st_ivas->hQMetaData->q_direction[0].cfg.nbands ); j++ )
		{
		FOR( Word16 k = 0; k < MAX_PARAM_SPATIAL_SUBFRAMES; k++ )
		{
		st_ivas->hQMetaData->q_direction[d].band_data[j].elevation[k] = fix_to_float( st_ivas->hQMetaData->q_direction[d].band_data[j].elevation_fx[k], Q22 );
		st_ivas->hQMetaData->q_direction[d].band_data[j].azimuth[k] = fix_to_float( st_ivas->hQMetaData->q_direction[d].band_data[j].azimuth_fx[k], Q22 );
		st_ivas->hQMetaData->q_direction[d].band_data[j].energy_ratio[k] = fix_to_float( st_ivas->hQMetaData->q_direction[d].band_data[j].energy_ratio_fx[k], Q30 );
		}
		}
		}
		FOR( Word32 l = 0; l < st_ivas->nchan_ism; l++ )
		{
		st_ivas->hMasaIsmData->q_azimuth_old[l] = fix_to_float( st_ivas->hMasaIsmData->q_azimuth_old_fx[l], Q22 );
		}
		IF( st_ivas->hMasaIsmData != NULL )
		{
		FOR( Word32 k = 0; k < MAX_PARAM_SPATIAL_SUBFRAMES; k++ )
		{
		FOR( Word32 j = 0; j < MASA_FREQUENCY_BANDS; j++ )
		{
		st_ivas->hMasaIsmData->masa_to_total_energy_ratio[k][j] = fix_to_float( st_ivas->hMasaIsmData->masa_to_total_energy_ratio_fx[k][j], Q30 );
		}
		}
		}
		st_ivas->hMasa->data.dir_decode_quality = fix16_to_float( st_ivas->hMasa->data.dir_decode_quality_fx, Q14 );
		IF( st_ivas->hMasa->hMasaLfeSynth != NULL )
		{
		for ( int j = 0; j < MAX_PARAM_SPATIAL_SUBFRAMES; j++ )
		{
		st_ivas->hMasa->hMasaLfeSynth->lfeToTotalEnergyRatio[j] = fix16_to_float( st_ivas->hMasa->hMasaLfeSynth->lfeToTotalEnergyRatio_fx[j], Q14 );
		}
		}
		IF( st_ivas->hSpatParamRendCom != NULL )
		{
		FOR( Word16 i = 0; i < st_ivas->hSpatParamRendCom->numIsmDirections; i++ )
		{
		FOR( Word16 block = 0; block < MAX_PARAM_SPATIAL_SUBFRAMES; block++ )
		{
		FOR(Word16 b = 0; b < st_ivas->hSpatParamRendCom->num_freq_bands; b++)
		{
		st_ivas->hMasaIsmData->energy_ratio_ism[i][block][b] = fix_to_float(st_ivas->hMasaIsmData->energy_ratio_ism_fx[i][block][b], Q30);
		}
		}
		}
		}
		// Fixed to float conversion ends here.
		#else
		if ( ( error = ivas_masa_decode( st_ivas, st, &nb_bits_metadata[0] ) ) != IVAS_ERR_OK )
		{
		return error;
		}
		#endif

		if ( output_config == IVAS_AUDIO_CONFIG_EXTERNAL )
		{
		@@ -584,7 +691,11 @@ ivas_error ivas_jbm_dec_tc(
		}

		/* MASA metadata decoding */
		#ifdef IVAS_FLOAT_FIXED
		IF ( ( error = ivas_masa_decode( st_ivas, st_ivas->hCPE[0]->hCoreCoder[0], &nb_bits_metadata[0] ) ) != IVAS_ERR_OK )
		#else
		if ( ( error = ivas_masa_decode( st_ivas, st_ivas->hCPE[0]->hCoreCoder[0], &nb_bits_metadata[0] ) ) != IVAS_ERR_OK )
		#endif
		{
		return error;
		}
		@@ -1115,11 +1226,117 @@ ivas_error ivas_jbm_dec_tc(
		}

		/* read McMASA parameters from the bitstream */
		if ( ( error = ivas_masa_decode( st_ivas, st, &nb_bits_metadata[0] ) ) != IVAS_ERR_OK )
		#ifdef IVAS_FLOAT_FIXED
		// Float to fix conversion starts here.
		FOR( Word32 l = 0; l < st_ivas->nchan_ism; l++ )
		{
		st_ivas->hMasaIsmData->q_azimuth_old_fx[l] = float_to_fix( st_ivas->hMasaIsmData->q_azimuth_old[l], Q22 );
		}
		IF( st_ivas->hMasa->hMasaLfeSynth != NULL )
		{
		FOR( Word32 j = 0; j < MAX_PARAM_SPATIAL_SUBFRAMES; j++ )
		{
		st_ivas->hMasa->hMasaLfeSynth->lfeToTotalEnergyRatio_fx[j] = float_to_fix16( st_ivas->hMasa->hMasaLfeSynth->lfeToTotalEnergyRatio[j], Q14 );
		}
		}
		IF( st_ivas->hSpatParamRendCom != NULL )
		{
		FOR( Word16 i = 0; i < st_ivas->hSpatParamRendCom->dirac_md_buffer_length; i++ )
		{
		FOR( Word16 j = 0; j < st_ivas->hSpatParamRendCom->num_freq_bands; j++ )
		{
		st_ivas->hSpatParamRendCom->diffuseness_vector_fx[i][j] = float_to_fix( st_ivas->hSpatParamRendCom->diffuseness_vector[i][j], 30 );
		st_ivas->hSpatParamRendCom->energy_ratio1_fx[i][j] = float_to_fix( st_ivas->hSpatParamRendCom->energy_ratio1[i][j], 30 );
		IF( EQ_16( st_ivas->hQMetaData->no_directions, 2 ) )
		{
		st_ivas->hSpatParamRendCom->energy_ratio2_fx[i][j] = float_to_fix( st_ivas->hSpatParamRendCom->energy_ratio2[i][j], 30 );
		st_ivas->hSpatParamRendCom->spreadCoherence2_fx[i][j] = float_to_fix16( st_ivas->hSpatParamRendCom->spreadCoherence2[i][j], 15 );
		}
		st_ivas->hSpatParamRendCom->surroundingCoherence_fx[i][j] = float_to_fix16( st_ivas->hSpatParamRendCom->surroundingCoherence[i][j], 15 );
		st_ivas->hSpatParamRendCom->spreadCoherence_fx[i][j] = float_to_fix16( st_ivas->hSpatParamRendCom->spreadCoherence[i][j], 15 );
		}
		}
		}
		// Float to fix conversion ends here.

		IF( ( error = ivas_masa_decode_fx( st_ivas, st, &nb_bits_metadata[0] ) ) != IVAS_ERR_OK )
		{
		return error;
		}

		// Fix to float conversion starts here.
		IF( st_ivas->hSpatParamRendCom != NULL )
		{
		FOR( Word16 i = 0; i < st_ivas->hSpatParamRendCom->dirac_md_buffer_length; i++ )
		{
		FOR( Word16 j = 0; j < st_ivas->hSpatParamRendCom->num_freq_bands; j++ )
		{
		st_ivas->hSpatParamRendCom->energy_ratio1[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->energy_ratio1_fx[i][j], 30 );
		st_ivas->hSpatParamRendCom->diffuseness_vector[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->diffuseness_vector_fx[i][j], 30 );
		IF( EQ_16( st_ivas->hQMetaData->no_directions, 2 ) )
		{
		st_ivas->hSpatParamRendCom->energy_ratio2[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->energy_ratio2_fx[i][j], 30 );
		st_ivas->hSpatParamRendCom->spreadCoherence2[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->spreadCoherence2_fx[i][j], 15 );
		}
		st_ivas->hSpatParamRendCom->surroundingCoherence[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->surroundingCoherence_fx[i][j], 15 );
		st_ivas->hSpatParamRendCom->spreadCoherence[i][j] = fix_to_float( st_ivas->hSpatParamRendCom->spreadCoherence_fx[i][j], 15 );
		}
		}
		}
		FOR( Word16 d = 0; d < max( st_ivas->hMasa->config.numberOfDirections, st_ivas->hQMetaData->no_directions ); d++ )
		{
		FOR( Word16 j = 0; j < max( st_ivas->hMasa->config.numCodingBands, st_ivas->hQMetaData->q_direction[0].cfg.nbands ); j++ )
		{
		FOR( Word16 k = 0; k < MAX_PARAM_SPATIAL_SUBFRAMES; k++ )
		{
		st_ivas->hQMetaData->q_direction[d].band_data[j].elevation[k] = fix_to_float( st_ivas->hQMetaData->q_direction[d].band_data[j].elevation_fx[k], Q22 );
		st_ivas->hQMetaData->q_direction[d].band_data[j].azimuth[k] = fix_to_float( st_ivas->hQMetaData->q_direction[d].band_data[j].azimuth_fx[k], Q22 );
		st_ivas->hQMetaData->q_direction[d].band_data[j].energy_ratio[k] = fix_to_float( st_ivas->hQMetaData->q_direction[d].band_data[j].energy_ratio_fx[k], Q30 );
		}
		}
		}
		FOR( Word32 l = 0; l < st_ivas->nchan_ism; l++ )
		{
		st_ivas->hMasaIsmData->q_azimuth_old[l] = fix_to_float( st_ivas->hMasaIsmData->q_azimuth_old_fx[l], Q22 );
		}
		IF( st_ivas->hMasaIsmData != NULL )
		{
		FOR( Word32 k = 0; k < MAX_PARAM_SPATIAL_SUBFRAMES; k++ )
		{
		FOR( Word32 j = 0; j < MASA_FREQUENCY_BANDS; j++ )
		{
		st_ivas->hMasaIsmData->masa_to_total_energy_ratio[k][j] = fix_to_float( st_ivas->hMasaIsmData->masa_to_total_energy_ratio_fx[k][j], Q30 );
		}
		}
		}
		st_ivas->hMasa->data.dir_decode_quality = fix16_to_float( st_ivas->hMasa->data.dir_decode_quality_fx, Q14 );
		IF( st_ivas->hMasa->hMasaLfeSynth != NULL )
		{
		for ( int j = 0; j < MAX_PARAM_SPATIAL_SUBFRAMES; j++ )
		{
		st_ivas->hMasa->hMasaLfeSynth->lfeToTotalEnergyRatio[j] = fix16_to_float( st_ivas->hMasa->hMasaLfeSynth->lfeToTotalEnergyRatio_fx[j], Q14 );
		}
		}
		IF( st_ivas->hSpatParamRendCom != NULL )
		{
		FOR( Word16 i = 0; i < st_ivas->hSpatParamRendCom->numIsmDirections; i++ )
		{
		FOR( Word16 block = 0; block < MAX_PARAM_SPATIAL_SUBFRAMES; block++ )
		{
		FOR( Word16 b = 0; b < st_ivas->hSpatParamRendCom->num_freq_bands; b++ )
		{
		st_ivas->hMasaIsmData->energy_ratio_ism[i][block][b] = fix_to_float( st_ivas->hMasaIsmData->energy_ratio_ism_fx[i][block][b], Q30 );
		}
		}
		}
		}
		// Fixed to float conversion ends here.
		#else
		if ( ( error = ivas_masa_decode( st_ivas, st, &nb_bits_metadata[0] ) ) != IVAS_ERR_OK )
		{
		return error;
		}
		#endif
		if ( st_ivas->hOutSetup.separateChannelEnabled )
		{
		/* Decode the transport audio signals */

lib_dec/ivas_masa_dec.c

+958 −19

File changed.

Preview size limit exceeded, changes collapsed.

lib_dec/ivas_omasa_dec.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -209,7 +209,11 @@ ivas_error ivas_omasa_dec_config(
		old_renderer_type = st_ivas->renderer_type;

		/* MASA reconfig. */
		#ifdef IVAS_FLOAT_FIXED
		cpe_brate = calculate_cpe_brate_MASA_ISM_fx( st_ivas->ism_mode, ivas_total_brate, st_ivas->nchan_ism );
		#else
		cpe_brate = calculate_cpe_brate_MASA_ISM( st_ivas->ism_mode, ivas_total_brate, st_ivas->nchan_ism );
		#endif
		if ( st_ivas->ini_active_frame == 0 && ivas_total_brate != FRAME_NO_DATA && ( cpe_brate < MASA_STEREO_MIN_BITRATE ) && st_ivas->nCPE == 1 )
		{
		st_ivas->hCPE[0]->nchan_out = 1;