commit 1 (d2884f72) · Commits · SA4 / Audio / IVAS BASOP

lib_com/cnst.h

+3 −1

Original line number	Diff line number	Diff line
		@@ -575,7 +575,7 @@ enum
		#define FRAMES_PER_SEC 50
		#ifdef IVAS_FLOAT_FIXED
		#define MAX_PARAM_SPATIAL_SUB_FRAMES_PER_SEC 200 //(FRAMES_PER_SEC * MAX_PARAM_SPATIAL_SUBFRAMES)
		#define ONE_BY_FRAMES_PER_SEC ((Word32)(0x028F5C29))
		#define ONE_BY_FRAMES_PER_SEC_Q31 ((Word32)(0x028F5C29))
		#define FRAMES_PER_SEC_BY_2 (FRAMES_PER_SEC >> 1)
		#endif
		#define INV_FRAME_PER_SEC_Q15 656
		@@ -1818,7 +1818,9 @@ typedef enum _DCTTYPE
		#define CNA_INIT_NBANDS 6

		#define GAIN_Q_OFFSET_EVS 60.f
		#define GAIN_Q_OFFSET_EVS_FX_Q0 60
		#define GAIN_Q_OFFSET_IVAS 45.f
		#define GAIN_Q_OFFSET_IVAS_FX_Q0 45

		/----------------------------------------------------------------------------------
		* Bass post-filter constants

lib_com/ivas_cnst.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -343,14 +343,22 @@ typedef enum
		#define ISM_AZIMUTH_MAX_FX 754974720
		#define ISM_AZIMUTH_LOW_BORDER -140.0f
		#define ISM_AZIMUTH_HIGH_BORDER 135.0f
		#define ISM_AZIMUTH_LOW_BORDER_FX -587202560
		#define ISM_AZIMUTH_HIGH_BORDER_FX 566231040

		#define ISM_ELEVATION_NBITS 6
		#define ISM_ELEVATION_MIN -90.0f
		#define ISM_ELEVATION_MAX 90.0f
		#define ISM_ELEVATION_MIN_FX -377487360
		#define ISM_ELEVATION_MAX_FX 377487360
		#define ISM_ELEVATION_LOW_BORDER -70.0f
		#define ISM_ELEVATION_HIGH_BORDER 65.0f
		#define ISM_ELEVATION_LOW_BORDER_FX -293601280
		#define ISM_ELEVATION_HIGH_BORDER_FX 272629760
		#define ISM_Q_STEP 2.5f
		#define ISM_Q_STEP_FX 10485760
		#define ISM_Q_STEP_BORDER 5.0f
		#define ISM_Q_STEP_BORDER_FX 20971520

		#define ISM_RADIUS_NBITS 6
		#define ISM_RADIUS_MIN 0.0f

lib_com/ivas_entropy_coder_common.c

+364 −64

File changed.

Preview size limit exceeded, changes collapsed.

lib_com/ivas_ism_com.c

+56 −0

Original line number	Diff line number	Diff line
		@@ -838,6 +838,62 @@ void ivas_ism_reset_metadata_API(
		-------------------------------------------------------------------/

		/! r: index of the winning codeword /
		#ifdef IVAS_FLOAT_FIXED
		Word16 ism_quant_meta_fx(
		const Word32 val, /* i : scalar value to quantize Q22 */
		Word32 valQ, / o : quantized value Q22 */
		const Word32 borders_fx[], /* i : level borders Q22 */
		const Word32 q_step_fx, /* i : quantization step Q22 */
		const Word32 q_step_border_fx, /* i : quantization step at the border Q22 */
		const Word16 cbsize /* i : codebook size */
		)
		{
		Word16 idx, idx_start;
		Word32 qlow_fx, step_fx;
		Word16 tmp, tmp_e;

		IF( val <= borders_fx[1] )
		{
		qlow_fx = borders_fx[0];
		move32();
		idx_start = 0;
		move32();
		step_fx = q_step_border_fx;
		move32();
		}
		ELSE IF( val <= borders_fx[2] )
		{
		qlow_fx = borders_fx[1];
		move32();
		tmp = BASOP_Util_Divide3232_Scale( L_sub( borders_fx[1], borders_fx[0] ), q_step_border_fx, &tmp_e );
		idx_start = shr( tmp, sub( 15, tmp_e ) );
		step_fx = q_step_fx;
		move32();
		}
		ELSE
		{
		qlow_fx = borders_fx[2];
		move32();
		tmp = BASOP_Util_Divide3232_Scale( L_add( L_sub( borders_fx[3], borders_fx[2] ), L_sub( q_step_border_fx, ONE_IN_Q22 ) ), q_step_border_fx, &tmp_e );
		idx_start = sub( cbsize, add( 1, shr( tmp, sub( 15, tmp_e ) ) ) );
		step_fx = q_step_border_fx;
		move32();
		}


		tmp = BASOP_Util_Divide3232_Scale( L_sub( val, qlow_fx ), step_fx, &tmp_e );
		tmp = shl( tmp, sub( Q1, sub( 15, tmp_e ) ) );
		tmp = add( tmp, 1 );
		tmp = shr( tmp, 1 );
		idx = add( idx_start, s_max( 0, s_min( sub( cbsize, 1 ), tmp ) ) );

		// idx = idx_start + (int16_t) max( 0.f, min( cbsize - 1, ( ( val - qlow_fx ) / step_fx + 0.5f ) ) );
		*valQ = L_add( imult3216( step_fx, sub( idx, idx_start ) ), qlow_fx );

		return idx;
		}
		#endif

		int16_t ism_quant_meta(
		const float val, /* i : scalar value to quantize */
		float valQ, / o : quantized value */

lib_com/ivas_omasa_com.c

+51 −29

Original line number	Diff line number	Diff line
		@@ -89,7 +89,7 @@

		/! r : ISM format mode /
		#ifdef IVAS_FLOAT_FIXED
		ISM_MODE ivas_omasa_ism_mode_select(
		ISM_MODE ivas_omasa_ism_mode_select_fx(
		const Word32 ivas_total_brate, /* i : IVAS total bitrate */
		const Word16 nchan_ism /* i : number of input ISM's */
		)
		@@ -169,6 +169,7 @@ ISM_MODE ivas_omasa_ism_mode_select(
		ELSE
		{
		ism_mode = ISM_MODE_NONE;
		move16();
		}
		BREAK;
		}
		@@ -258,7 +259,7 @@ ISM_MODE ivas_omasa_ism_mode_select(
		* ---------------------------------------------------------------*/

		#ifdef IVAS_FLOAT_FIXED
		void ivas_set_omasa_TC(
		void ivas_set_omasa_TC_fx(
		const ISM_MODE ism_mode, /* i : ISM mode */
		const Word16 nchan_ism, /* i : number of input ISMs */
		Word16 nSCE, / o : number of SCEs */
		@@ -331,7 +332,7 @@ void ivas_set_omasa_TC(

		/! r: adjusted bitrate /
		#ifdef IVAS_FLOAT_FIXED
		Word32 ivas_interformat_brate(
		Word32 ivas_interformat_brate_fx(
		const ISM_MODE ism_mode, /* i : ISM mode */
		const Word16 nchan_ism, /* i : number of ISM channels */
		const Word32 element_brate, /* i : element bitrate */
		@@ -342,17 +343,32 @@ Word32 ivas_interformat_brate(
		Word32 element_brate_out;
		Word16 nBits, limit_low, limit_high;

		nBits = extract_l( div_l( element_brate, shr( FRAMES_PER_SEC, 1 ) ) );
		nBits = extract_l( Mpy_32_32( element_brate, ONE_BY_FRAMES_PER_SEC_Q31 ) ); /* Q0 */

		IF( EQ_16( ism_imp, ISM_INACTIVE_IMP ) )
		IF( ism_imp == ISM_INACTIVE_IMP )
		{
		nBits = BITS_ISM_INACTIVE;
		move16();
		}
		ELSE
		{
		IF( EQ_16( (Word16) ism_mode, (Word16) ISM_MASA_MODE_DISC ) && ( ( EQ_16( nchan_ism, 4 ) && EQ_32( element_brate, 24000 ) ) \|\| ( EQ_16( nchan_ism, 3 ) && LE_32( element_brate, 24000 ) ) \|\| ( EQ_16( nchan_ism, 2 ) && LE_32( element_brate, 11000 ) ) ) ) /* for border case in DISC mode */
		{
		test();
		test();
		test();
		test();
		test();
		test();
		test();
		test();
		test();
		IF( EQ_16( ism_mode, ISM_MASA_MODE_DISC ) && ( ( EQ_16( nchan_ism, 4 ) && EQ_32( element_brate, 24000 ) ) \|\| ( EQ_16( nchan_ism, 3 ) && LE_32( element_brate, 24000 ) ) \|\| ( EQ_16( nchan_ism, 2 ) && LE_32( element_brate, 11000 ) ) ) ) /* for border case in DISC mode */
		{
		test();
		test();
		test();
		test();
		test();
		test();
		IF( EQ_16( limit_flag, 1 ) && ( ( EQ_16( nchan_ism, 4 ) && EQ_32( element_brate, 24000 ) ) \|\| ( EQ_16( nchan_ism, 3 ) && EQ_32( element_brate, 20000 ) ) \|\| ( EQ_16( nchan_ism, 2 ) && LE_32( element_brate, 11000 ) ) ) )
		{
		return element_brate;
		@@ -379,11 +395,12 @@ Word32 ivas_interformat_brate(
		}
		}
		}
		ELSE IF( EQ_16( (Word16) ism_mode, (Word16) ISM_MASA_MODE_PARAM_ONE_OBJ ) \|\|
		( EQ_16( (Word16) ism_mode, (Word16) ISM_MASA_MODE_DISC ) && EQ_32( element_brate, 9600 ) ) /* this condition corresponds to the ivas_total_brate = 24400 and 1 object */
		ELSE IF( EQ_16( ism_mode, ISM_MASA_MODE_PARAM_ONE_OBJ ) \|\|
		( EQ_16( ism_mode, ISM_MASA_MODE_DISC ) && EQ_32( element_brate, 9600 ) ) /* this condition corresponds to the ivas_total_brate = 24400 and 1 object */
		)
		{
		IF( EQ_16( (Word16) ism_mode, (Word16) ISM_MASA_MODE_PARAM_ONE_OBJ ) && EQ_32( element_brate, IVAS_13k2 ) )
		test();
		IF( EQ_16( ism_mode, ISM_MASA_MODE_PARAM_ONE_OBJ ) && EQ_32( element_brate, IVAS_13k2 ) )
		{
		IF( EQ_16( ism_imp, ISM_LOW_IMP ) )
		{
		@@ -414,7 +431,7 @@ Word32 ivas_interformat_brate(
		}
		}
		}
		ELSE IF( EQ_16( (Word16) ism_mode, (Word16) ISM_MASA_MODE_MASA_ONE_OBJ ) && EQ_32( element_brate, 16000 ) )
		ELSE IF( EQ_16( ism_mode, ISM_MASA_MODE_MASA_ONE_OBJ ) && EQ_32( element_brate, 16000 ) )
		{
		IF( EQ_16( ism_imp, ISM_LOW_IMP ) )
		{
		@@ -447,7 +464,8 @@ Word32 ivas_interformat_brate(
		}

		limit_low = MIN_BRATE_SWB_BWE / FRAMES_PER_SEC;
		IF( EQ_16( ism_imp, ISM_INACTIVE_IMP ) )
		move16();
		IF( ism_imp == ISM_INACTIVE_IMP )
		{
		limit_low = BITS_ISM_INACTIVE;
		move16();
		@@ -466,7 +484,7 @@ Word32 ivas_interformat_brate(
		move16();
		}

		nBits = check_bounds_s( nBits, limit_low, limit_high );
		nBits = check_bounds_s_fx( nBits, limit_low, limit_high );

		element_brate_out = L_mult0( nBits, FRAMES_PER_SEC );

		@@ -618,7 +636,7 @@ int32_t ivas_interformat_brate(
		* ---------------------------------------------------------------*/

		#ifdef IVAS_FLOAT_FIXED
		void ivas_combined_format_brate_sanity(
		void ivas_combined_format_brate_sanity_fx(
		const Word32 element_brate, /* i : element bitrate */
		const Word16 core, /* i : core */
		const Word32 total_brate, /* i : total bitrate */
		@@ -640,10 +658,10 @@ void ivas_combined_format_brate_sanity(
		{
		limit_high = ACELP_12k8_HIGH_LIMIT / FRAMES_PER_SEC;
		move16();
		nBits = extract_l( div_l( *core_brate, shr( FRAMES_PER_SEC, 1 ) ) );
		nBits = extract_l( Mpy_32_32( *core_brate, ONE_BY_FRAMES_PER_SEC_Q31 ) );

		*diff_nBits = sub( nBits, limit_high );
		IF( GT_16( *diff_nBits, 0 ) )
		IF( *diff_nBits > 0 )
		{
		IF( EQ_16( core, TCX_20_CORE ) \|\| EQ_16( core, TCX_10_CORE ) )
		{
		@@ -661,11 +679,11 @@ void ivas_combined_format_brate_sanity(
		* set inactive coder_type flag in ACELP core
		-----------------------------------------------------------------/

		IF( EQ_16( core, ACELP_CORE ) )
		IF( core == ACELP_CORE )
		{
		inactive_coder_type_flag = 0; / AVQ by default */
		move16();
		IF( LE_32( L_add( *core_brate, brate_diff ), MAX_GSC_INACTIVE_BRATE ) )
		if ( LE_32( L_add( *core_brate, brate_diff ), MAX_GSC_INACTIVE_BRATE ) )
		{
		inactive_coder_type_flag = 1; / GSC */
		move16();
		@@ -729,6 +747,7 @@ void ivas_combined_format_brate_sanity(
		}
		#endif


		/*---------------------------------------------------------------
		* bits_index_ism_ratio()
		*
		@@ -737,7 +756,7 @@ void ivas_combined_format_brate_sanity(

		/!r : number of bits for ISM ratio index /
		#ifdef IVAS_FLOAT_FIXED
		Word16 bits_index_ism_ratio(
		Word16 bits_index_ism_ratio_fx(
		const Word16 nchan_ism /* i : number of objects */
		)
		{
		@@ -802,7 +821,7 @@ int16_t bits_index_ism_ratio(
		*
		* ---------------------------------------------------------------*/


		#ifndef IVAS_FLOAT_FIXED
		void calculate_nbits_meta(
		const int16_t nchan_ism,
		float q_energy_ratio_ism[MAX_PARAM_SPATIAL_SUBFRAMES][MASA_FREQUENCY_BANDS][MAX_NUM_OBJECTS],
		@@ -860,7 +879,7 @@ void calculate_nbits_meta(

		return;
		}
		#ifdef IVAS_FLOAT_FIXED
		#else
		static Word16 get_bits_ism( Word32 val )
		{
		Word16 res;
		@@ -914,7 +933,7 @@ void calculate_nbits_meta_fx(
		const Word16 ism_imp )
		{
		Word16 sf, band, obj;
		Word32 priority[MAX_NUM_OBJECTS], max_p;
		Word32 priority[MAX_NUM_OBJECTS], max_p; /* Q29 */

		IF( GT_16( nchan_ism, 1 ) )
		{
		@@ -925,7 +944,7 @@ void calculate_nbits_meta_fx(
		{
		FOR( obj = 0; obj < nchan_ism; obj++ )
		{
		priority[obj] = max( priority[obj], ( Mpy_32_32( q_energy_ratio_ism[sf][band][obj], L_sub( 1073741824, masa_to_total_energy_ratio[sf][band] ) ) ) ); // Qx - 1
		priority[obj] = L_max( priority[obj], ( Mpy_32_32( q_energy_ratio_ism[sf][band][obj], L_sub( 1073741824 /* 1.0f in Q30 */, masa_to_total_energy_ratio[sf][band] ) ) ) ); // Qx - 1
		move32();
		}
		}
		@@ -933,7 +952,7 @@ void calculate_nbits_meta_fx(
		}
		ELSE
		{
		priority[0] = 536870912;
		priority[0] = 536870912; /* 1.0f in Q29 */
		move32();
		}

		@@ -945,7 +964,7 @@ void calculate_nbits_meta_fx(
		{
		IF( EQ_16( ism_imp, 3 ) )
		{
		priority[obj] = 536870912;
		priority[obj] = 536870912; /* 1.0f in Q29 */
		move32();
		}
		ELSE IF( EQ_16( ism_imp, 2 ) )
		@@ -955,7 +974,7 @@ void calculate_nbits_meta_fx(
		}
		ELSE
		{
		priority[obj] = max_p;
		priority[obj] = max_p; /* Q29 */
		move32();
		}
		}
		@@ -966,6 +985,7 @@ void calculate_nbits_meta_fx(
		}
		#endif


		/*---------------------------------------------------------------
		* ivas_get_stereo_panning_gains()
		*
		@@ -1161,7 +1181,7 @@ void ivas_get_stereo_panning_gains_fx(

		/! r: limitation flag /
		#ifdef IVAS_FLOAT_FIXED
		Word16 calculate_brate_limit_flag(
		Word16 calculate_brate_limit_flag_fx(
		const Word16 ism_imp[], /* i : ISM importance flags */
		const Word16 nchan_ism /* i : number of objects */
		)
		@@ -1178,17 +1198,19 @@ Word16 calculate_brate_limit_flag(
		FOR( n = 0; n < nchan_ism; n++ )
		{
		brate_limit_flag = add( brate_limit_flag, ism_imp[n] );
		IF( EQ_16( ism_imp[n], 0 ) )
		if ( ism_imp[n] == 0 )
		{
		nzeros = add( nzeros, 1 );
		}
		}
		nchan_ism_sat = nchan_ism;
		IF( EQ_16( nchan_ism & 1, 1 ) )
		if ( EQ_16( nchan_ism & 1, 1 ) )
		{
		nchan_ism_sat = sub( nchan_ism, 1 );
		}


		/* brate_limit_flag >= (int16_t) ( nchan_ism * 2.5f ) */
		IF( GE_16( i_mult( 2, brate_limit_flag ), add( i_mult( 4, nchan_ism ), nchan_ism_sat ) ) )
		{
		brate_limit_flag = 1;
		@@ -1196,7 +1218,7 @@ Word16 calculate_brate_limit_flag(
		}
		ELSE
		{
		IF( GE_16( i_mult( 2, nzeros ), nchan_ism ) )
		if ( GE_16( i_mult( 2, nzeros ), nchan_ism ) )
		{
		brate_limit_flag = -1; /* there is no limitation, on the contrary */
		move16();