Functions in ivas_masa_dec converted to fixed point. (03cc507f) · Commits · SA4 / Audio / IVAS BASOP

lib_com/cnst.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -718,6 +718,7 @@ enum
		#define CLDFB_NO_COL_MAX_SWITCH_BFI 10 /* CLDFB resampling - max number of CLDFB col. for switching, BFI */
		#define CLDFB_OVRLP_MIN_SLOTS 3 /* CLDFB resampling - minimize processing to minimum required for transition frame ACELP->TCX/HQ */
		#define INV_CLDFB_BANDWIDTH ( 1.f / 800.f )
		#define INV_CLDFB_BANDWIDTH_Q31 ( 2684355l )

		#define L_FILT_2OVER3 12
		#define L_FILT_2OVER3_LP 3

lib_com/ivas_cnst.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -1291,6 +1291,13 @@ typedef enum
		#define MCMASA_LFE_THETA 1.3f
		#define MCMASA_LFE_SYNTH_ALPHA 0.95f /* Smoothing coefficient for LFE synthesis */

		#define MCMASA_LFE_ALPHA_Q15 (21954)
		#define MCMASA_LFE_BETA_Q15 (2949)
		#define MCMASA_LFE_BETA_Q14 (1474)
		#define MCMASA_LFE_THETA_Q14 (21299)
		#define MCMASA_LFE_QLOW_Q12 (-26624)
		#define MCMASA_LFE_DELTA_Q11 (2048)

		#define NUM_ELEVATED_SPEAKERS 4

		#define MCMASA_MIN_SPEAKERS_SEPARATE_CENTER 4

lib_com/ivas_masa_com.c

+267 −0

Original line number	Diff line number	Diff line
		@@ -40,6 +40,9 @@
		#include "ivas_rom_com.h"
		#include "ivas_stat_dec.h"
		#include "wmc_auto.h"
		#include "ivas_rom_com_fx.h"
		#include "prot_fx2.h"


		/*---------------------------------------------------------------
		* Local constants
		@@ -155,6 +158,123 @@ void ivas_masa_set_elements(
		return;
		}

		void ivas_masa_set_elements_fx(
		const Word32 ivas_total_brate, /* i : IVAS total bitrate */
		const Word16 mc_mode, /* i : MC format mode */
		const Word16 nchan_transport, /* i : number of MASA input/transport channels */
		IVAS_QMETADATA_HANDLE hQMetaData, /* i/o: q_metadata handle */
		Word16 element_mode, / o : element mode */
		Word16 nSCE, / o : number of SCEs */
		Word16 nCPE, / o : number of CPEs */
		const Word16 ivas_format, /* i : IVAS format */
		const ISM_MODE ism_mode, /* i : ISM mode */
		const Word32 ism_total_brate /* i : initial ISM total bitrate */
		)
		{
		Word16 tmp, tmp_e;

		IF ( EQ_16( nchan_transport, 2 ) )
		{
		test();
		test();
		IF ( GE_32( ivas_total_brate, MCMASA_SEPARATE_BRATE ) && EQ_16( mc_mode, MC_MODE_MCMASA ) )
		{
		*nCPE = 1;
		move16();
		*nSCE = 1;
		move16();

		element_mode = IVAS_SCE; / This is needed for the initialization phase to initialize codec mode to SCE, since it is written first to the file*/
		move16();
		}
		ELSE IF ( EQ_16( ivas_format, MASA_ISM_FORMAT ) && NE_16( ism_mode, ISM_MODE_NONE ) )
		{
		*nCPE = 1;
		move16();

		IF ( EQ_16( *element_mode, -1 ) )
		{
		element_mode = IVAS_CPE_DFT; / To have it initialized in case it was not already. */
		move16();
		}
		IF ( GT_32( ivas_total_brate, MIN_BRATE_MDCT_STEREO ) )
		{
		*element_mode = IVAS_CPE_MDCT;
		move16();
		test();
		test();
		test();
		IF ( ( EQ_16( ism_mode, ISM_MASA_MODE_DISC ) \|\| EQ_16( ism_mode, ISM_MASA_MODE_PARAM_ONE_OBJ ) \|\| EQ_16( ism_mode, ISM_MASA_MODE_MASA_ONE_OBJ ) ) && LT_32( L_sub( ivas_total_brate, ism_total_brate ), MIN_BRATE_MDCT_STEREO ) )
		{
		*element_mode = IVAS_CPE_DFT;
		move16();
		}
		}
		}
		ELSE
		{
		*nCPE = 1;
		move16();
		*nSCE = 0;
		move16();

		IF ( GT_32( ivas_total_brate, MIN_BRATE_MDCT_STEREO ) )
		{
		*element_mode = IVAS_CPE_MDCT;
		move16();
		}
		}
		tmp = BASOP_Util_Divide3216_Scale(ivas_total_brate, FRAMES_PER_SEC, &tmp_e);
		hQMetaData->bits_frame_nominal = shr(tmp, negate(add(1, tmp_e))); // Q0
		IF ( EQ_16(ivas_format, MASA_ISM_FORMAT) && ( EQ_16(ism_mode, ISM_MASA_MODE_MASA_ONE_OBJ) \|\| EQ_16(ism_mode, ISM_MASA_MODE_PARAM_ONE_OBJ) \|\| EQ_16(ism_mode,ISM_MASA_MODE_DISC) ) )
		{
		tmp = BASOP_Util_Divide3216_Scale(ism_total_brate, FRAMES_PER_SEC, &tmp_e);
		tmp = shr(tmp, negate(add(1, tmp_e))); // Q0
		hQMetaData->bits_frame_nominal = sub(hQMetaData->bits_frame_nominal, tmp);
		}
		}
		ELSE IF ( GE_16( nchan_transport, 1 ) )
		{
		*nCPE = 0;
		move16();
		*nSCE = 1;
		move16();

		IF ( EQ_32( ivas_total_brate, IVAS_13k2 ) )
		{
		hQMetaData->bits_frame_nominal = ACELP_9k60 / FRAMES_PER_SEC;
		move16();
		}
		ELSE IF ( LE_32( ivas_total_brate, IVAS_16k4 ) )
		{
		hQMetaData->bits_frame_nominal = ACELP_13k20 / FRAMES_PER_SEC;
		move16();
		}
		ELSE IF ( LE_32( ivas_total_brate, IVAS_24k4 ) )
		{
		hQMetaData->bits_frame_nominal = ACELP_16k40 / FRAMES_PER_SEC;
		move16();
		}
		ELSE IF ( LE_32( ivas_total_brate, IVAS_32k ) )
		{
		hQMetaData->bits_frame_nominal = ACELP_24k40 / FRAMES_PER_SEC;
		move16();
		}
		ELSE
		{
		hQMetaData->bits_frame_nominal = (Word16) ( ivas_total_brate / FRAMES_PER_SEC );
		move16();
		}
		*element_mode = IVAS_SCE;
		move16();
		}
		ELSE
		{
		assert( !"MASA number of transport channels must be 1, or 2" );
		}

		return;
		}

		/*---------------------------------------------------------------
		* generate_gridEq()
		@@ -196,6 +316,30 @@ void generate_gridEq(
		return;
		}

		#ifdef IVAS_FLOAT_FIXED
		void generate_gridEq_fx(
		SPHERICAL_GRID_DATA data / o : data structure for grid */
		)
		{
		/***************************************************************/
		/* NOTE: created LUT from float code. The lookup table depends */
		/* on the following macros: */
		/* - MASA_NO_CIRCLES */
		/* - MASA_NO_POINTS_EQUATOR */
		/* - MASA_ANGLE_AT_EQUATOR */
		/* - MASA_NTOT2_FAC */
		/* - MASA_ASIN_OFFSET */
		/***************************************************************/

		Copy( gridEq_Table, data->no_phi, NO_THETA16_MAX );

		data->no_theta = NO_THETA16_MAX;
		move16();

		return;
		}
		#endif


		/*---------------------------------------------------------------
		* ivas_masa_set_coding_config()
		@@ -462,6 +606,129 @@ void masa_sample_rate_band_correction(
		return;
		}

		#ifdef IVAS_FLOAT_FIXED
		void masa_sample_rate_band_correction_fx(
		MASA_CODEC_CONFIG config, / i/o: MASA codec config */
		Word16 band_mapping, / i/o: Band mapping used and modified */
		IVAS_QMETADATA_HANDLE hQMetaData, /* i/o: QMetadata structure for modification */
		const UWord8 maxBand, /* i : max band */
		UWord8 is_encoder, /* i : signals if called at encoder */
		MASA_DECODER_EXT_OUT_META_HANDLE hExtOutMeta /* i/o: MASA decoder metadata ext out buffer */
		)
		{
		UWord8 band, sf;
		Word16 highBand;
		UWord8 numBands48k;

		numBands48k = config->numCodingBands;

		FOR ( band = 1; band < config->numCodingBands + 1; band++ )
		{
		highBand = band_mapping[band];

		IF ( GE_16( highBand, (Word16)maxBand ) )
		{
		config->numCodingBands = band;
		hQMetaData->numCodingBands = band;

		IF ( is_encoder )
		{
		test();
		IF ( GT_16( hQMetaData->q_direction->cfg.nbands, (Word16)band ) )
		{
		hQMetaData->q_direction->cfg.nbands = band;
		}
		IF ( EQ_16( (Word16) hQMetaData->no_directions, 2 ) && GT_16( hQMetaData->q_direction[1].cfg.nbands, (Word16)band ) )
		{
		hQMetaData->q_direction[1].cfg.nbands = band;
		}
		}

		band_mapping[band] = maxBand;

		BREAK;
		}
		}

		/* Set rest of the bands to zero in qmetadata. */
		FOR ( ; band < numBands48k; band++ )
		{
		FOR ( sf = 0; sf < MAX_PARAM_SPATIAL_SUBFRAMES; sf++ )
		{
		#if 1 /* TODO: remove float code */
		hQMetaData->q_direction[0].band_data[band].azimuth[sf] = 0.0f;
		hQMetaData->q_direction[0].band_data[band].elevation[sf] = 0.0f;
		hQMetaData->q_direction[0].band_data[band].energy_ratio[sf] = 0.0f;
		#endif
		hQMetaData->q_direction[0].band_data[band].azimuth_fx[sf] = 0;
		move32();
		hQMetaData->q_direction[0].band_data[band].elevation_fx[sf] = 0;
		move32();
		hQMetaData->q_direction[0].band_data[band].energy_ratio_fx[sf] = 0;
		move32();

		IF ( hQMetaData->coherence_flag && hQMetaData->q_direction[0].coherence_band_data != NULL )
		{
		hQMetaData->q_direction[0].coherence_band_data[band].spread_coherence[sf] = 0u;
		}

		IF ( EQ_16( (Word16) hQMetaData->no_directions, 2 ) )
		{
		#if 1 /* TODO: remove float code */
		hQMetaData->q_direction[1].band_data[band].azimuth[sf] = 0.0f;
		hQMetaData->q_direction[1].band_data[band].elevation[sf] = 0.0f;
		hQMetaData->q_direction[1].band_data[band].energy_ratio[sf] = 0.0f;
		#endif
		hQMetaData->q_direction[1].band_data[band].azimuth_fx[sf] = 0;
		move32();
		hQMetaData->q_direction[1].band_data[band].elevation_fx[sf] = 0;
		move32();
		hQMetaData->q_direction[1].band_data[band].energy_ratio_fx[sf] = 0;
		move32();

		IF ( hQMetaData->coherence_flag && hQMetaData->q_direction[1].coherence_band_data != NULL )
		{
		hQMetaData->q_direction[1].coherence_band_data[band].spread_coherence[sf] = 0u;
		}
		}

		IF ( hQMetaData->coherence_flag && hQMetaData->surcoh_band_data != NULL )
		{
		hQMetaData->surcoh_band_data[band].surround_coherence[sf] = 0u;
		}
		}

		IF ( EQ_16( (Word16) hQMetaData->no_directions, 2 ) )
		{
		hQMetaData->twoDirBands[band] = 0;
		}
		}

		IF ( hExtOutMeta != NULL )
		{
		/* in decoder, zero the EXT out MASA meta buffer */
		FOR ( sf = 0; sf < MAX_PARAM_SPATIAL_SUBFRAMES; sf++ )
		{
		FOR ( band = hQMetaData->numCodingBands; band < MASA_FREQUENCY_BANDS; band++ )
		{
		hExtOutMeta->directionIndex[0][sf][band] = SPH_IDX_FRONT;
		hExtOutMeta->directToTotalRatio[0][sf][band] = 0u;
		hExtOutMeta->spreadCoherence[0][sf][band] = 0u;

		hExtOutMeta->directionIndex[1][sf][band] = SPH_IDX_FRONT;
		hExtOutMeta->directToTotalRatio[1][sf][band] = 0u;
		hExtOutMeta->spreadCoherence[1][sf][band] = 0u;

		hExtOutMeta->surroundCoherence[sf][band] = 0u;
		hExtOutMeta->diffuseToTotalRatio[sf][band] = UINT8_MAX;
		}
		}
		}

		return;
		}
		#endif


		/*-------------------------------------------------------------------------
		* index_theta_phi_16()

lib_com/ivas_prot_fx.h

+47 −0

Original line number	Diff line number	Diff line
		@@ -45,6 +45,53 @@
		#include "ivas_stat_com.h"
		#include "ivas_error_utils.h"

		ivas_error ivas_masa_dec_open_fx(
		Decoder_Struct st_ivas / i/o: IVAS decoder handle */
		);

		void ivas_masa_dec_close_fx(
		MASA_DECODER_HANDLE hMasa / i/o: MASA metadata structure */
		);

		void generate_gridEq_fx(
		SPHERICAL_GRID_DATA data / o : data structure for grid */
		);

		void masa_sample_rate_band_correction_fx(
		MASA_CODEC_CONFIG config, / i/o: MASA codec config */
		Word16 band_mapping, / i/o: Band mapping used and modified */
		IVAS_QMETADATA_HANDLE hQMetaData, /* i/o: QMetadata structure for modification */
		const UWord8 maxBand, /* i : max band */
		UWord8 is_encoder, /* i : signals if called at encoder */
		MASA_DECODER_EXT_OUT_META_HANDLE hExtOutMeta /* i/o: MASA decoder metadata ext out buffer */
		);

		void ivas_masa_set_elements_fx(
		const Word32 ivas_total_brate, /* i : codec total bitrate */
		const Word16 mc_mode, /* i : MC format mode */
		const Word16 nchan_transport, /* i : number of MASA input/transport channels */
		IVAS_QMETADATA_HANDLE hQMetaData, /* i/o: q_metadata handle */
		Word16 element_mode, / o : element mode */
		Word16 nSCE, / o : number of SCEs */
		Word16 nCPE, / o : number of CPEs */
		const Word16 ivas_format, /* i : IVAS format */
		const ISM_MODE ism_mode, /* i : ISM mode */
		const Word32 ism_total_brate /* i : initial ISM total bitrate */
		);

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

		ivas_error ivas_jbm_dec_tc_buffer_open_fx(
		Decoder_Struct st_ivas, / i/o: IVAS decoder structure */
		const TC_BUFFER_MODE tc_buffer_mode, /* i : buffer mode */
		const Word16 nchan_transport_jbm, /* i : number of real transport channels */
		const Word16 nchan_transport_internal, /* i : number of totally buffered channels */
		const Word16 nchan_full, /* i : number of channels to fully store */
		const Word16 n_samples_granularity /* i : granularity of the renderer/buffer */
		);

		void ivas_dct_windowing_fx(
		const Word16 fade_len,
		const Word16 full_len,

lib_com/ivas_rom_com_fx.c

+24 −1

Original line number	Diff line number	Diff line
		@@ -292,4 +292,27 @@ const Word32 ism_elevation_borders_fx[4] =
		{
		-377487360, -293601280, 272639760, 377487360
		};

		const Word16 gridEq_Table[NO_THETA16_MAX] = {
		430, 423, 422, 422, 422, 422, 421, 421, 420, 420, 419, 418, 417, 417, 416,
		414, 414, 412, 412, 409, 409, 407, 406, 404, 402, 401, 399, 397, 395, 394,
		391, 389, 387, 385, 383, 380, 378, 375, 373, 370, 368, 365, 362, 359, 356,
		354, 350, 347, 344, 341, 338, 334, 331, 328, 324, 321, 317, 313, 310, 306,
		302, 299, 294, 291, 287, 282, 279, 274, 270, 266, 262, 258, 253, 249, 244,
		240, 235, 231, 226, 222, 217, 212, 208, 202, 198, 194, 188, 183, 179, 173,
		169, 163, 159, 153, 148, 144, 138, 133, 127, 123, 117, 112, 107, 102, 96,
		91, 85, 81, 75, 69, 64, 59, 53, 48, 43, 37, 32, 26, 21, 15, 10, 1
		};

		const Word16 McMASA_LFEGain_vectors_fx_q13[64] = {
		3112, 2703, 1556, 1638, -1310, -1802, -2867, -2785,
		4096, 4096, 4096, 4096, -6553, -3276, 8355, 819,
		-4096, -4096, -4096, -4096, -4587, -983, -6389, 11141,
		-8355, 9666, -4669, 2703, 5898, -9256, 7946, -5079,
		-7454, 7618, 8192, -9011, 14172, -1884, -6389, -6881,
		7782, -13107, -2785, 7618, 7127, 3850, -15564, 4259,
		5488, 11632, -7946, -10158, 6799, 4751, 4997, -16711,
		-6553, -12943, 6717, 11632, -17530, 2129, 6881, 8355
		};

		/* clang-format on */

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