format.h File Reference

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Macros
#define	__AUDIO_FORMAT_GENERIC__   1
#define	__AUDIO_FORMAT_HIFI3__   0
#define	INT24_MAXVALUE   8388607
#define	INT24_MINVALUE   -8388608
#define	ONE_Q2_30   1073741824 /* Q2.30 1.0 */
#define	ONE_Q1_31   2147483647 /* Q1.31 ~1.0 */
#define	MINUS_3DB_Q1_31   1520301996 /* 10^(-3/20) */
#define	MINUS_6DB_Q1_31   1076291389 /* 10^(-6/20) */
#define	MINUS_10DB_Q1_31   679093957 /* 10^(-10/20) */
#define	MINUS_20DB_Q1_31   214748365 /* 10^(-20/20) */
#define	MINUS_30DB_Q1_31   67909396 /* 10^(-30/20) */
#define	MINUS_40DB_Q1_31   21474836 /* 10^(-40/20) */
#define	MINUS_50DB_Q1_31   6790940 /* 10^(-50/20) */
#define	MINUS_60DB_Q1_31   2147484 /* 10^(-60/20) */
#define	MINUS_70DB_Q1_31   679094 /* 10^(-70/20) */
#define	MINUS_80DB_Q1_31   214748 /* 10^(-80/20) */
#define	MINUS_90DB_Q1_31   67909 /* 10^(-90/20) */
#define	Q_SHIFT_BITS_64(qx, qy, qz)
#define	Q_SHIFT_BITS_32(qx, qy, qz)
#define	Q_CONVERT_FLOAT(f, qy)
#define	Q_CONVERT_QTOF(x, ny)
#define	Q_CONVERT_QTOD(x, ny)
#define	Q_SHIFT(x, src_q, dst_q)
#define	Q_SHIFT_RND(x, src_q, dst_q)
#define	Q_SHIFT_LEFT(x, src_q, dst_q)
#define	Q_MULTS_16X16(px, py, qx, qy, qp)
#define	Q_MULTSR_16X16(px, py, qx, qy, qp)
#define	Q_MULTS_32X32(px, py, qx, qy, qp)
#define	Q_MULTSR_32X32(px, py, qx, qy, qp)
#define	SATP_INT32(x)
#define	SATM_INT32(x)

Functions
static int64_t	q_mults_32x32 (int32_t x, int32_t y, const int shift_bits)
static int64_t	q_multsr_32x32 (int32_t x, int32_t y, const int shift_bits)
static int32_t	q_mults_16x16 (int16_t x, int32_t y, const int shift_bits)
static int16_t	q_multsr_16x16 (int16_t x, int32_t y, const int shift_bits)
static int32_t	q_multsr_sat_32x32 (int32_t x, int32_t y, const int shift_bits)
static int32_t	q_multsr_sat_32x32_24 (int32_t x, int32_t y, const int shift_bits)
static int32_t	q_multsr_sat_32x32_16 (int32_t x, int32_t y, const int shift_bits)
static int16_t	q_multsr_sat_16x16 (int16_t x, int32_t y, const int shift_bits)
static int32_t	sign_extend_s24 (int32_t x)

Macro Definition Documentation

__AUDIO_FORMAT_GENERIC__

#define __AUDIO_FORMAT_GENERIC__   1

__AUDIO_FORMAT_HIFI3__

#define __AUDIO_FORMAT_HIFI3__   0

INT24_MAXVALUE

#define INT24_MAXVALUE   8388607

INT24_MINVALUE

#define INT24_MINVALUE   -8388608

MINUS_10DB_Q1_31

#define MINUS_10DB_Q1_31   679093957 /* 10^(-10/20) */

MINUS_20DB_Q1_31

#define MINUS_20DB_Q1_31   214748365 /* 10^(-20/20) */

MINUS_30DB_Q1_31

#define MINUS_30DB_Q1_31   67909396 /* 10^(-30/20) */

MINUS_3DB_Q1_31

#define MINUS_3DB_Q1_31   1520301996 /* 10^(-3/20) */

MINUS_40DB_Q1_31

#define MINUS_40DB_Q1_31   21474836 /* 10^(-40/20) */

MINUS_50DB_Q1_31

#define MINUS_50DB_Q1_31   6790940 /* 10^(-50/20) */

MINUS_60DB_Q1_31

#define MINUS_60DB_Q1_31   2147484 /* 10^(-60/20) */

MINUS_6DB_Q1_31

#define MINUS_6DB_Q1_31   1076291389 /* 10^(-6/20) */

MINUS_70DB_Q1_31

#define MINUS_70DB_Q1_31   679094 /* 10^(-70/20) */

MINUS_80DB_Q1_31

#define MINUS_80DB_Q1_31   214748 /* 10^(-80/20) */

MINUS_90DB_Q1_31

#define MINUS_90DB_Q1_31   67909 /* 10^(-90/20) */

ONE_Q1_31

#define ONE_Q1_31   2147483647 /* Q1.31 ~1.0 */

ONE_Q2_30

#define ONE_Q2_30   1073741824 /* Q2.30 1.0 */

Q_CONVERT_FLOAT

#define Q_CONVERT_FLOAT	(		f,
			qy )

Value:

    ((int32_t)(((const double)f) * ((int64_t)1 << (const int)qy) + 0.5))

Q_CONVERT_QTOD

#define Q_CONVERT_QTOD	(		x,
			ny )

Value:

((double)(x) / ((int64_t)1 << (ny)))

Q_CONVERT_QTOF

#define Q_CONVERT_QTOF	(		x,
			ny )

Value:

((float)(x) / ((int64_t)1 << (ny)))

Q_MULTS_16X16

#define Q_MULTS_16X16	(		px,
			py,
			qx,
			qy,
			qp )

Value:

    ((px) * (py) >> (((qx) + (qy) - (qp))))

Q_MULTS_32X32

#define Q_MULTS_32X32	(		px,
			py,
			qx,
			qy,
			qp )

Value:

    ((px) * (py) >> (((qx) + (qy) - (qp))))

Q_MULTSR_16X16

#define Q_MULTSR_16X16	(		px,
			py,
			qx,
			qy,
			qp )

Value:

    ((((px) * (py) >> ((qx) + (qy) - (qp) - 1)) + 1) >> 1)

Q_MULTSR_32X32

#define Q_MULTSR_32X32	(		px,
			py,
			qx,
			qy,
			qp )

Value:

    ((((px) * (py) >> ((qx) + (qy) - (qp) - 1)) + 1) >> 1)

Q_SHIFT

#define Q_SHIFT	(		x,
			src_q,
			dst_q )

Value:

((x) >> ((src_q) - (dst_q)))

Q_SHIFT_BITS_32

#define Q_SHIFT_BITS_32	(		qx,
			qy,
			qz )

Value:

    ((qx + qy - qz) <= 31 ? (((qx + qy - qz) >= 0) ? \
     (qx + qy - qz) : INT32_MIN) : INT32_MAX)

Q_SHIFT_BITS_64

#define Q_SHIFT_BITS_64	(		qx,
			qy,
			qz )

Value:

    ((qx + qy - qz) <= 63 ? (((qx + qy - qz) >= 0) ? \
     (qx + qy - qz) : INT64_MIN) : INT64_MAX)

Q_SHIFT_LEFT

#define Q_SHIFT_LEFT	(		x,
			src_q,
			dst_q )

Value:

((x) << ((dst_q) - (src_q)))

Q_SHIFT_RND

#define Q_SHIFT_RND	(		x,
			src_q,
			dst_q )

Value:

    ((((x) >> ((src_q) - (dst_q) - 1)) + 1) >> 1)

SATM_INT32

#define SATM_INT32

(

x

)

Value:

(((x) < INT32_MIN) ? INT32_MIN : (x))

SATP_INT32

#define SATP_INT32

(

x

)

Value:

(((x) > INT32_MAX) ? INT32_MAX : (x))

Function Documentation

q_mults_16x16()

int32_t q_mults_16x16 ( int16_t x, int32_t y, const int shift_bits )

inlinestatic

q_mults_32x32()

int64_t q_mults_32x32 ( int32_t x, int32_t y, const int shift_bits )

inlinestatic

q_multsr_16x16()

int16_t q_multsr_16x16 ( int16_t x, int32_t y, const int shift_bits )

inlinestatic

q_multsr_32x32()

int64_t q_multsr_32x32 ( int32_t x, int32_t y, const int shift_bits )

inlinestatic

q_multsr_sat_16x16()

int16_t q_multsr_sat_16x16 ( int16_t x, int32_t y, const int shift_bits )

inlinestatic

q_multsr_sat_32x32()

int32_t q_multsr_sat_32x32 ( int32_t x, int32_t y, const int shift_bits )

inlinestatic

q_multsr_sat_32x32_16()

int32_t q_multsr_sat_32x32_16 ( int32_t x, int32_t y, const int shift_bits )

inlinestatic

q_multsr_sat_32x32_24()

int32_t q_multsr_sat_32x32_24 ( int32_t x, int32_t y, const int shift_bits )

inlinestatic

sign_extend_s24()

int32_t sign_extend_s24 ( int32_t x )

inlinestatic