recreate the branch (234ca637) · Commits · IVAS Codec Public Collaboration / IVAS Codec

lib_com/basop_util.h

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		/******************************************************************************************************

		(C) 2022 IVAS codec Public Collaboration with portions copyright Dolby International AB, Ericsson AB,
		Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
		Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
		Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
		contributors to this repository. All Rights Reserved.

		This software is protected by copyright law and by international treaties.
		The IVAS codec Public Collaboration consisting of Dolby International AB, Ericsson AB,
		Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
		Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
		Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
		contributors to this repository retain full ownership rights in their respective contributions in
		the software. This notice grants no license of any kind, including but not limited to patent
		license, nor is any license granted by implication, estoppel or otherwise.

		Contributors are required to enter into the IVAS codec Public Collaboration agreement before making
		contributions.

		This software is provided "AS IS", without any express or implied warranties. The software is in the
		development stage. It is intended exclusively for experts who have experience with such software and
		solely for the purpose of inspection. All implied warranties of non-infringement, merchantability
		and fitness for a particular purpose are hereby disclaimed and excluded.

		Any dispute, controversy or claim arising under or in relation to providing this software shall be
		submitted to and settled by the final, binding jurisdiction of the courts of Munich, Germany in
		accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and
		the United Nations Convention on Contracts on the International Sales of Goods.

		*******************************************************************************************************/

		/*====================================================================================
		EVS Codec 3GPP TS26.443 Nov 04, 2021. Version 12.14.0 / 13.10.0 / 14.6.0 / 15.4.0 / 16.3.0
		====================================================================================*/

		#ifndef __BASOP_UTIL_H__
		#define __BASOP_UTIL_H__

		#include <stdint.h>
		#include "options.h"
		#include "basop_settings.h"
		#include "typedef.h"
		#include "basop32.h"
		#include "basop_mpy.h"


		#define LD_DATA_SCALE ( 6 )

		#define LD_DATA_SHIFT_I5 ( 7 )

		#define modDiv2( x ) sub( x, shl( shr( x, 1 ), 1 ) )
		#define modDiv8( x ) L_sub( x, L_shl( L_shr( x, 3 ), 3 ) )

		#ifndef CHEAP_NORM_SIZE
		#define CHEAP_NORM_SIZE 161
		#endif

		static __inline Word16 limitScale16( Word16 s )
		{
		/* It is assumed, that s is calculated just before, therefore we can switch upon sign */
		if ( s >= 0 )
		s = s_min( s, WORD16_BITS - 1 );
		if ( s < 0 )
		s = s_max( s, 1 - WORD16_BITS );
		return ( s );
		}

		static __inline Word16 limitScale32( Word16 s )
		{
		/* It is assumed, that s is calculated just before, therefore we can switch upon sign */
		if ( s >= 0 )
		s = s_min( s, WORD32_BITS - 1 );
		if ( s < 0 )
		s = s_max( s, 1 - WORD32_BITS );
		return ( s );
		}


		/!*********************************************************************
		\brief Add two values given by mantissa and exponent.

		Mantissas are in 16-bit-fractional format with values between 0 and 1. <br>
		The base for exponents is 2. Example: \f$ a = a\_m * 2^{a\_e} \f$<br>

		************************************************************************/
		Word16 BASOP_Util_Add_MantExp /!< Exponent of result /
		( Word16 a_m, /!< Mantissa of 1st operand a /
		Word16 a_e, /!< Exponent of 1st operand a /
		Word16 b_m, /!< Mantissa of 2nd operand b /
		Word16 b_e, /!< Exponent of 2nd operand b /
		Word16 ptrSum_m ); /!< Mantissa of result */


		/************************************************************************/
		/*!
		\brief Calculate the squareroot of a number given by mantissa and exponent

		Mantissa is in 16/32-bit-fractional format with values between 0 and 1. <br>
		For *norm versions mantissa has to be between 0.5 and 1. <br>
		The base for the exponent is 2. Example: \f$ a = a\_m * 2^{a\_e} \f$<br>
		The exponent is addressed via pointers and will be overwritten with the result.
		*/
		Word16 Sqrt16( /!< output mantissa /
		Word16 mantissa, /!< input mantissa /
		Word16 exponent /!< pointer to exponent */
		);

		/*****************************************************************************/
		/*!
		\brief Calculate the inverse of a number given by mantissa and exponent

		Mantissa is in 16-bit-fractional format with values between 0 and 1. <br>
		The base for the exponent is 2. Example: \f$ a = a\_m * 2^{a\_e} \f$<br>
		The operand is addressed via pointers and will be overwritten with the result.

		The function uses a table lookup and a newton iteration.
		*/
		Word16 Inv16( /!< output mantissa /
		Word16 mantissa, /!< input mantissa /
		Word16 exponent /!< pointer to exponent */
		);

		/******************************************************************************/
		/*!
		\brief Calculate the squareroot and inverse of squareroot of a number given by mantissa and exponent

		Mantissa is in 16-bit-fractional format with values between 0 and 1. <br>
		The base for the exponent is 2. Example: \f$ a = a\_m * 2^{a\_e} \f$<br>
		*/
		void BASOP_Util_Sqrt_InvSqrt_MantExp( Word16 mantissa, /!< mantissa /
		Word16 exponent, /!< expoinent /
		Word16 sqrt_mant, /!< Pointer to sqrt mantissa */
		Word16 sqrt_exp, /!< Pointer to sqrt exponent */
		Word16 isqrt_mant, /!< Pointer to 1/sqrt mantissa */
		Word16 isqrt_exp /!< Pointer to 1/sqrt exponent */
		);


		/********************************************************************/
		/*!
		\brief Calculates the scalefactor needed to normalize input array

		The scalefactor needed to normalize the Word32 input array is returned <br>
		If the input array contains only '0', a scalefactor 0 is returned <br>
		Scaling factor is determined wrt a normalized target x: 1073741824 <= x <= 2147483647 for positive x <br>
		and -2147483648 <= x <= -1073741824 for negative x
		*/

		/! r: measured headroom in range [0..31], 0 if all x[i] == 0 /
		Word16 getScaleFactor32(
		const Word32 x, / i : array containing 32-bit data */
		const Word16 len_x ); /* i : length of the array to scan */

		/************************************************************************/
		/*!
		\brief Binary logarithm with 7 iterations

		\param x

		\return log2(x)/64
		*/
		/************************************************************************/
		Word32 BASOP_Util_Log2( Word32 x );


		/****************************************************************************/
		/*!
		\brief Does fractional division of Word16 arg1 by Word16 arg2


		\return fractional Q15 Word16 z = arg1(Q15)/arg2(Q15) with scaling s
		*/
		Word16 BASOP_Util_Divide1616_Scale( Word16 x, /* i : Numerator*/
		Word16 y, /* i : Denominator*/
		Word16 s ); / o : Additional scalefactor difference*/

		/****************************************************************************/
		/*!
		\brief Does fractional integer division of Word32 arg1 by Word16 arg2


		\return fractional Word16 integer z = arg1(32bits)/arg2(16bits), z not normalized
		*/
		Word16 BASOP_Util_Divide3216_Scale( Word32 x, /!< i : Numerator /
		Word16 y, /!< i : Denominator/
		Word16 s ); /!< o : Additional scalefactor difference*/


		/************************************************************************/
		/*!
		* \brief Binary logarithm with 5 iterations
		*
		* \param[i] val
		*
		* \return basop_log2(val)/128
		*/
		/************************************************************************/
		Word32 BASOP_Util_log2_i5( Word32 val );

		/************************************************************************/
		/*!
		\brief Binary power

		Date: 06-JULY-2012 Arthur Tritthart, IIS Fraunhofer Erlangen

		Version with 3 table lookup and 1 linear interpolations

		Algorithm: compute power of 2, argument x is in Q7.25 format
		result = 2^(x/64)
		We split exponent (x/64) into 5 components:
		integer part: represented by b31..b25 (exp)
		fractional part 1: represented by b24..b20 (lookup1)
		fractional part 2: represented by b19..b15 (lookup2)
		fractional part 3: represented by b14..b10 (lookup3)
		fractional part 4: represented by b09..b00 (frac)
		=> result = (lookup1lookup2(lookup3+C1*frac)<<3)>>exp

		Due to the fact, that all lookup values contain a factor 0.5
		the result has to be shifted by 3 to the right also.
		Table exp2_tab_long contains the log2 for 0 to 1.0 in steps
		of 1/32, table exp2w_tab_long the log2 for 0 to 1/32 in steps
		of 1/1024, table exp2x_tab_long the log2 for 0 to 1/1024 in
		steps of 1/32768. Since the 2-logarithm of very very small
		negative value is rather linear, we can use interpolation.

		Limitations:

		For x <= 0, the result is fractional positive
		For x > 0, the result is integer in range 1...7FFF.FFFF
		For x < -31/64, we have to clear the result
		For x = 0, the result is ~1.0 (0x7FFF.FFFF)
		For x >= 31/64, the result is 0x7FFF.FFFF

		\param x

		\return pow(2,(x/64))
		*/
		/************************************************************************/
		Word32 BASOP_Util_InvLog2( Word32 x );


		/****************************************************************************/
		/*!
		\brief Sets Array Word16 arg1 to value Word16 arg2 for Word16 arg3 elements
		*/
		void set_val_Word16( Word16 X[], /!< Address of array /
		const Word16 val, /!< Value to copy into array /
		Word16 n ); /!< Number of elements to process /


		/****************************************************************************/
		/*!
		\brief Sets Array Word32 arg1 to value Word32 arg2 for Word16 arg3 elements
		*/
		void set_val_Word32( Word32 X[], /!< Address of array /
		const Word32 val, /!< Value to copy into array /
		Word16 n ); /!< Number of elements to process /

		/****************************************************************************/
		/*!
		\brief Does a multiplication of Word16 input values

		\return z16 = x16 * y16
		*/
		Word16 mult0( Word16 x, /* i : Multiplier */
		Word16 y ); /* i : Multiplicand */

		/**
		* \brief calculate cosine of angle. Tuned for ISF domain.
		* \param theta Angle normalized to radix 2, theta = (angle in radians)*2.0/pi
		* \return result with exponent 0.
		*/
		Word16 getCosWord16R2( Word16 theta );

		/****************************************************************************/
		/*!
		\brief 16/16->16 unsigned integer division

		x and y have to be positive, x has to be < 16384

		\return 16/16->16 integer
		*/

		Word16 idiv1616U( Word16 x, Word16 y );


		/**
		* \brief return 2 ^ (exp * 2^exp_e)
		* \param exp_m mantissa of the exponent to 2.0f
		* \param exp_e exponent of the exponent to 2.0f
		* \param result_e pointer to a INT where the exponent of the result will be stored into
		* \return mantissa of the result
		*/
		Word32 BASOP_util_Pow2(
		const Word32 exp_m,
		const Word16 exp_e,
		Word16 *result_e );


		Word32 Isqrt_lc1(
		Word32 frac, /* i : Q31: normalized value (1.0 < frac <= 0.5) */
		Word16 exp / i/o: exponent (value = frac x 2^exponent) */
		);

		/*****************************************************************************/
		/*!

		\brief Calculates pow(2,x)
		___________________________________________________________________________
		\| \|
		\| Function Name : Pow2() \|
		\| \|
		\| L_x = pow(2.0, exponant.fraction) (exponent = interger part) \|
		\| = pow(2.0, 0.fraction) << exponent \|
		\|---------------------------------------------------------------------------\|
		\| Algorithm: \|
		\| \|
		\| The function Pow2(L_x) is approximated by a table and linear \|
		\| interpolation. \|
		\| \|
		\| 1- i = bit10-b15 of fraction, 0 <= i <= 31 \|
		\| 2- a = bit0-b9 of fraction \|
		\| 3- L_x = table[i]<<16 - (table[i] - table[i+1]) * a * 2 \|
		\| 4- L_x = L_x >> (30-exponant) (with rounding) \|
		\|___________________________________________________________________________\|
		*/
		Word32 Pow2( /* o : Q0 : result (range: 0<=val<=0x7fffffff) */
		Word16 exponant, /* i : Q0 : Integer part. (range: 0<=val<=30) */
		Word16 fraction /* i : Q15 : Fractionnal part. (range: 0.0<=val<1.0) */
		);

		/*************************************************************************
		*
		* FUNCTION: Log2_norm()
		*
		* PURPOSE: Computes log2(L_x, exp), where L_x is positive and
		* normalized, and exp is the normalisation exponent
		* If L_x is negative or zero, the result is 0.
		*
		* DESCRIPTION:
		* The function Log2(L_x) is approximated by a table and linear
		* interpolation. The following steps are used to compute Log2(L_x)
		*
		* 1- exponent = 30-norm_exponent
		* 2- i = bit25-b31 of L_x; 32<=i<=63 (because of normalization).
		* 3- a = bit10-b24
		* 4- i -=32
		* 5- fraction = table[i]<<16 - (table[i] - table[i+1]) * a * 2
		*
		*************************************************************************/

		Word16 Log2_norm_lc( /* o : Fractional part of Log2. (range: 0<=val<1) */
		Word32 L_x /* i : input value (normalized) */
		);

		/*************************************************************************
		*
		* FUNCTION: BASOP_Util_fPow()
		*/
		/**
		* \brief BASOP_Util_fPow
		*
		* PURPOSE: Computes pow(base_m, base_e, exp_m, exp_e), where base_m and base_e
		* specify the base, and exp_m and exp_e specify the exponent.
		* The result is returned in a mantissa and exponent representation.
		*
		* DESCRIPTION:
		* The function BASOP_Util_fPow(L_x) calculates the power function by
		* calculating 2 ^ (log2(base)*exp)
		*
		* \param base_m mantissa of base
		* \param base_e exponent of base
		* \param exp_m mantissa of exponent
		* \param exp_e exponent of exponent
		* \param result_e pointer to exponent of result
		* \return Word32 mantissa of result
		*
		*************************************************************************/

		Word32 BASOP_Util_fPow( /* o : mantissa of result */
		Word32 base_m,
		Word16 base_e, /* i : input value for base (mantissa and exponent) */
		Word32 exp_m,
		Word16 exp_e, /* i : input value for exponent (mantissa and exponent) */
		Word16 result_e / o : output pointer to exponent of result */
		);

		/!*********************************************************************
		\brief Add two values given by mantissa and exponent.

		Mantissas are in 32-bit-fractional format with values between 0 and 1. <br>
		The base for exponents is 2. Example: \f$ a = a\_m * 2^{a\_e} \f$<br>

		************************************************************************/
		Word32 BASOP_Util_Add_Mant32Exp /* o : normalized result mantissa */
		( Word32 a_m, /* i : Mantissa of 1st operand a */
		Word16 a_e, /* i : Exponent of 1st operand a */
		Word32 b_m, /* i : Mantissa of 2nd operand b */
		Word16 b_e, /* i : Exponent of 2nd operand b */
		Word16 ptr_e ); / o : exponent of result */

		/****************************************************************************/
		/*!
		\brief Accumulates multiplications

		Accumulates the elementwise multiplications of Word32 Array X with Word16 Array Y
		pointed to by arg1 and arg2 with specified headroom. Length of to be multiplied arrays is arg3,
		headroom with has to be taken into account is specified in arg4

		\return Word32 result of accumulated multiplications over Word32 array arg1 and Word16 array arg2 and Word16 pointer
		to exponent correction factor which needs to be added to the exponent of the result vector
		*/
		Word32 dotWord32_16_guards( const Word32 X, const Word16 Y, Word16 n, Word16 hr, Word16 *shift );

		Word32 Sqrt_l( Word32 L_x, Word16 *exp );

		#endif /* __BASOP_UTIL_H__ */

lib_com/cnst.h

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lib_com/common_api_types.h

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		/******************************************************************************************************

		(C) 2022 IVAS codec Public Collaboration with portions copyright Dolby International AB, Ericsson AB,
		Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
		Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
		Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
		contributors to this repository. All Rights Reserved.

		This software is protected by copyright law and by international treaties.
		The IVAS codec Public Collaboration consisting of Dolby International AB, Ericsson AB,
		Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
		Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
		Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
		contributors to this repository retain full ownership rights in their respective contributions in
		the software. This notice grants no license of any kind, including but not limited to patent
		license, nor is any license granted by implication, estoppel or otherwise.

		Contributors are required to enter into the IVAS codec Public Collaboration agreement before making
		contributions.

		This software is provided "AS IS", without any express or implied warranties. The software is in the
		development stage. It is intended exclusively for experts who have experience with such software and
		solely for the purpose of inspection. All implied warranties of non-infringement, merchantability
		and fitness for a particular purpose are hereby disclaimed and excluded.

		Any dispute, controversy or claim arising under or in relation to providing this software shall be
		submitted to and settled by the final, binding jurisdiction of the courts of Munich, Germany in
		accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and
		the United Nations Convention on Contracts on the International Sales of Goods.

		*******************************************************************************************************/

		#ifndef COMMON_API_TYPES_H
		#define COMMON_API_TYPES_H

		/* options.h needed for debugging/development features
		* It should be stripped for delivery along with debugging switches */
		#include "options.h"
		#include <stdint.h>
		#include <stdio.h>

		/----------------------------------------------------------------------------------
		* Common API constants
		----------------------------------------------------------------------------------/

		#define IVAS_MAX_BITS_PER_FRAME ( 512000 / 50 )
		#define IVAS_MAX_NUM_OBJECTS 4
		#define IVAS_MAX_OUTPUT_CHANNELS 16
		#define IVAS_CLDFB_NO_CHANNELS_MAX ( 60 )
		#define IVAS_MAX_INPUT_LFE_CHANNELS 4

		/----------------------------------------------------------------------------------
		* Common API structures
		----------------------------------------------------------------------------------/

		typedef enum _IVAS_ENC_FEC_INDICATOR
		{
		IVAS_ENC_FEC_LO,
		IVAS_ENC_FEC_HI,
		IVAS_ENC_FEC_UNDEFINED = 0xffff
		} IVAS_ENC_FEC_INDICATOR;

		typedef struct _IVAS_ENC_CHANNEL_AWARE_CONFIG
		{
		int16_t channelAwareModeEnabled;
		IVAS_ENC_FEC_INDICATOR fec_indicator;
		int16_t fec_offset;
		} IVAS_ENC_CHANNEL_AWARE_CONFIG;


		typedef struct _IVAS_ISM_METADATA
		{
		float azimuth;
		float elevation;
		float radius;
		float spread;
		float gainFactor;
		} IVAS_ISM_METADATA;

		typedef struct
		{
		float w, x, y, z;

		} IVAS_QUATERNION;

		typedef struct ivas_masa_metadata_frame_struct *IVAS_MASA_METADATA_HANDLE;
		typedef struct ivas_masa_qmetadata_frame_struct *IVAS_MASA_QMETADATA_HANDLE;

		typedef struct TDREND_HRFILT_FiltSet_struct *IVAS_DEC_HRTF_HANDLE;

		#ifdef DEBUGGING
		typedef enum
		{
		IVAS_RENDER_TYPE_OVERRIDE_NONE,
		IVAS_RENDER_TYPE_OVERRIDE_CREND,
		IVAS_RENDER_TYPE_OVERRIDE_FASTCONV
		} IVAS_RENDER_TYPE_OVERRIDE;
		#endif

		typedef struct _IVAS_ROOM_ACOUSTICS_CONFIG
		{
		int16_t override;
		int16_t use_brir;
		int16_t late_reverb_on;
		int16_t nBands; /* Number of frequency bands for which reverb properties are provided, integer, range [2..256] */
		float pFc_input[IVAS_CLDFB_NO_CHANNELS_MAX]; /* Center frequencies for which following values are provided: */
		float pAcoustic_rt60[IVAS_CLDFB_NO_CHANNELS_MAX]; /* - The room's T60 per center frequency */
		float pAcoustic_dsr[IVAS_CLDFB_NO_CHANNELS_MAX]; /* - The room's Diffuse to Source Ratio per center frequency */
		float acousticPreDelay; /* Time elapsed between input signal and late reverberation start, float, range [0.001..10] */
		float inputPreDelay; /* Offset in seconds from where DSR is computed in the RIR (0 = at source), float, range [0.001..10] */
		} IVAS_ROOM_ACOUSTICS_CONFIG_DATA;

		typedef struct _IVAS_RENDER_CONFIG
		{
		#ifdef DEBUGGING
		IVAS_RENDER_TYPE_OVERRIDE renderer_type_override;
		#endif
		IVAS_ROOM_ACOUSTICS_CONFIG_DATA room_acoustics;
		} IVAS_RENDER_CONFIG_DATA, *IVAS_RENDER_CONFIG_HANDLE;

		typedef struct _IVAS_LS_CUSTOM_LAYOUT
		{
		int16_t num_spk;
		float azimuth[IVAS_MAX_OUTPUT_CHANNELS];
		float elevation[IVAS_MAX_OUTPUT_CHANNELS];
		int16_t num_lfe;
		int16_t lfe_idx[IVAS_MAX_OUTPUT_CHANNELS];

		} IVAS_CUSTOM_LS_DATA;

		typedef struct ivas_LS_setup_custom *IVAS_LSSETUP_CUSTOM_HANDLE;
		typedef struct ivas_LS_setup_custom IVAS_LSSETUP_CUSTOM_STRUCT;


		typedef struct _IVAS_JBM_TRACE_DATA
		{
		double playTime;
		int16_t partialCopyOffset;
		uint16_t sequenceNumber;
		uint32_t timeStamp;
		uint32_t rcvTime;

		int16_t lastDecodedWasActive;
		int16_t partial_frame_flag;
		int16_t dataUnit_flag;

		} IVAS_JBM_TRACE_DATA;


		#endif /* COMMON_API_TYPES_H */

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lib_com/enh1632.h

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