#include <stdint.h>
#include "libavutil/attributes.h"
#include "libavutil/mem.h"
#include "dct32.h"
#include "mathops.h"
#include "mpegaudiodsp.h"
#include "mpegaudio.h"

Macros
#define	RENAME(n) n##_fixed

#define	OUT_SHIFT (WFRAC_BITS + FRAC_BITS - 15)

#define	MULS(ra, rb) MUL64(ra, rb)

#define	MACS(rt, ra, rb) MAC64(rt, ra, rb)

#define	MLSS(rt, ra, rb) MLS64(rt, ra, rb)

#define	MULH3(x, y, s) MULH((s)*(x), y)

#define	MULLx(x, y, s) MULL((int)(x),(y),s)

#define	SHR(a, b) (((int)(a))>>(b))

#define	FIXR(a) ((int)((a) * FRAC_ONE + 0.5))

#define	FIXHR(a) ((int)((a) * (1LL<<32) + 0.5))

#define	SUM8(op, sum, w, p)

#define	SUM8P2(sum1, op1, sum2, op2, w1, w2, p)

#define	C1 FIXHR(0.98480775301220805936/2)

#define	C2 FIXHR(0.93969262078590838405/2)

#define	C3 FIXHR(0.86602540378443864676/2)

#define	C4 FIXHR(0.76604444311897803520/2)

#define	C5 FIXHR(0.64278760968653932632/2)

#define	C6 FIXHR(0.5/2)

#define	C7 FIXHR(0.34202014332566873304/2)

#define	C8 FIXHR(0.17364817766693034885/2)

Functions
static int	round_sample (int64_t *sum)

void RENAME()	ff_mpadsp_apply_window (MPA_INT synth_buf, MPA_INT window, int dither_state, OUT_INT samples, ptrdiff_t incr)

void RENAME()	ff_mpa_synth_filter (MPADSPContext s, MPA_INT synth_buf_ptr, int synth_buf_offset, MPA_INT window, int dither_state, OUT_INT samples, ptrdiff_t incr, MPA_INT *sb_samples)

av_cold void RENAME()	ff_mpa_synth_init (MPA_INT *window)

av_cold void RENAME()	ff_init_mpadsp_tabs (void)

static void	imdct36 (INTFLOAT out, INTFLOAT buf, SUINTFLOAT in, INTFLOAT win)

void RENAME()	ff_imdct36_blocks (INTFLOAT out, INTFLOAT buf, INTFLOAT *in, int count, int switch_point, int block_type)

Variables
int	ff_mdct_win_fixed [8][MDCT_BUF_SIZE]
	Window for MDCT. More...

MPA_INT	ff_mpa_synth_window_fixed [512+256]

static const INTFLOAT	icos36 [9]

static const INTFLOAT	icos36h [9]

Macro Definition Documentation

◆ RENAME

#define RENAME ( n ) n##_fixed

Definition at line 51 of file mpegaudiodsp_template.c.

Referenced by ff_imdct36_blocks(), and ff_init_mpadsp_tabs().

◆ OUT_SHIFT

#define OUT_SHIFT (WFRAC_BITS + FRAC_BITS - 15)

Definition at line 52 of file mpegaudiodsp_template.c.

Referenced by round_sample().

◆ MULS

#define MULS	(	ra,
		rb
	)	MUL64(ra, rb)

Definition at line 62 of file mpegaudiodsp_template.c.

◆ MACS

#define MACS	(	rt,
		ra,
		rb
	)	MAC64(rt, ra, rb)

Definition at line 63 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window().

◆ MLSS

#define MLSS	(	rt,
		ra,
		rb
	)	MLS64(rt, ra, rb)

Definition at line 64 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window().

◆ MULH3

#define MULH3	(	x,
		y,
		s
	)	MULH((s)*(x), y)

Definition at line 65 of file mpegaudiodsp_template.c.

Referenced by imdct36().

◆ MULLx

#define MULLx	(	x,
		y,
		s
	)	MULL((int)(x),(y),s)

Definition at line 66 of file mpegaudiodsp_template.c.

Referenced by imdct36().

◆ SHR

#define SHR	(	a,
		b
	)	(((int)(a))>>(b))

Definition at line 67 of file mpegaudiodsp_template.c.

Referenced by imdct36().

◆ FIXR

#define FIXR ( a ) ((int)((a) * FRAC_ONE + 0.5))

Definition at line 68 of file mpegaudiodsp_template.c.

◆ FIXHR

#define FIXHR ( a ) ((int)((a) * (1LL<<32) + 0.5))

Definition at line 69 of file mpegaudiodsp_template.c.

Referenced by ff_init_mpadsp_tabs().

◆ SUM8

#define SUM8	(	op,
		sum,
		w,
		p
	)

Value:

{                                         \
    op(sum, (w)[0 * 64], (p)[0 * 64]);    \
    op(sum, (w)[1 * 64], (p)[1 * 64]);    \
    op(sum, (w)[2 * 64], (p)[2 * 64]);    \
    op(sum, (w)[3 * 64], (p)[3 * 64]);    \
    op(sum, (w)[4 * 64], (p)[4 * 64]);    \
    op(sum, (w)[5 * 64], (p)[5 * 64]);    \
    op(sum, (w)[6 * 64], (p)[6 * 64]);    \
    op(sum, (w)[7 * 64], (p)[7 * 64]);    \
}

Definition at line 80 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window().

◆ SUM8P2

#define SUM8P2	(	sum1,
		op1,
		sum2,
		op2,
		w1,
		w2,
		p
	)

Value:

{                                               \
    INTFLOAT tmp;\
    tmp = p[0 * 64];\
    op1(sum1, (w1)[0 * 64], tmp);\
    op2(sum2, (w2)[0 * 64], tmp);\
    tmp = p[1 * 64];\
    op1(sum1, (w1)[1 * 64], tmp);\
    op2(sum2, (w2)[1 * 64], tmp);\
    tmp = p[2 * 64];\
    op1(sum1, (w1)[2 * 64], tmp);\
    op2(sum2, (w2)[2 * 64], tmp);\
    tmp = p[3 * 64];\
    op1(sum1, (w1)[3 * 64], tmp);\
    op2(sum2, (w2)[3 * 64], tmp);\
    tmp = p[4 * 64];\
    op1(sum1, (w1)[4 * 64], tmp);\
    op2(sum2, (w2)[4 * 64], tmp);\
    tmp = p[5 * 64];\
    op1(sum1, (w1)[5 * 64], tmp);\
    op2(sum2, (w2)[5 * 64], tmp);\
    tmp = p[6 * 64];\
    op1(sum1, (w1)[6 * 64], tmp);\
    op2(sum2, (w2)[6 * 64], tmp);\
    tmp = p[7 * 64];\
    op1(sum1, (w1)[7 * 64], tmp);\
    op2(sum2, (w2)[7 * 64], tmp);\
}

Definition at line 92 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window().

◆ C1

#define C1 FIXHR(0.98480775301220805936/2)

Definition at line 267 of file mpegaudiodsp_template.c.

Referenced by imdct36().

◆ C2

#define C2 FIXHR(0.93969262078590838405/2)

Definition at line 268 of file mpegaudiodsp_template.c.

Referenced by imdct36().

◆ C3

#define C3 FIXHR(0.86602540378443864676/2)

Definition at line 269 of file mpegaudiodsp_template.c.

Referenced by imdct36().

◆ C4

#define C4 FIXHR(0.76604444311897803520/2)

Definition at line 270 of file mpegaudiodsp_template.c.

Referenced by imdct36().

◆ C5

#define C5 FIXHR(0.64278760968653932632/2)

Definition at line 271 of file mpegaudiodsp_template.c.

Referenced by imdct36().

◆ C6

#define C6 FIXHR(0.5/2)

Definition at line 272 of file mpegaudiodsp_template.c.

◆ C7

#define C7 FIXHR(0.34202014332566873304/2)

Definition at line 273 of file mpegaudiodsp_template.c.

Referenced by imdct36().

◆ C8

#define C8 FIXHR(0.17364817766693034885/2)

Definition at line 274 of file mpegaudiodsp_template.c.

Referenced by imdct36().

Function Documentation

◆ round_sample()

static int round_sample ( int64_t * sum )

inlinestatic

Definition at line 54 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window().

◆ ff_mpadsp_apply_window()

void RENAME() ff_mpadsp_apply_window	(	MPA_INT *	synth_buf,
		MPA_INT *	window,
		int *	dither_state,
		OUT_INT *	samples,
		ptrdiff_t	incr
	)

Definition at line 121 of file mpegaudiodsp_template.c.

◆ ff_mpa_synth_filter()

void RENAME() ff_mpa_synth_filter	(	MPADSPContext *	s,
		MPA_INT *	synth_buf_ptr,
		int *	synth_buf_offset,
		MPA_INT *	window,
		int *	dither_state,
		OUT_INT *	samples,
		ptrdiff_t	incr,
		MPA_INT *	sb_samples
	)

Definition at line 176 of file mpegaudiodsp_template.c.

Referenced by mp_decode_frame().

◆ ff_mpa_synth_init()

av_cold void RENAME() ff_mpa_synth_init ( MPA_INT * window )

Definition at line 195 of file mpegaudiodsp_template.c.

Referenced by decode_init_static().

◆ ff_init_mpadsp_tabs()

av_cold void RENAME() ff_init_mpadsp_tabs ( void )

Definition at line 224 of file mpegaudiodsp_template.c.

◆ imdct36()

static void imdct36	(	INTFLOAT *	out,
		INTFLOAT *	buf,
		SUINTFLOAT *	in,
		INTFLOAT *	win
	)

static

Definition at line 303 of file mpegaudiodsp_template.c.

Referenced by ff_imdct36_blocks().

◆ ff_imdct36_blocks()

void RENAME() ff_imdct36_blocks	(	INTFLOAT *	out,
		INTFLOAT *	buf,
		INTFLOAT *	in,
		int	count,
		int	switch_point,
		int	block_type
	)

Definition at line 383 of file mpegaudiodsp_template.c.

Variable Documentation

◆ ff_mdct_win_fixed

int ff_mdct_win_fixed[8][MDCT_BUF_SIZE]

Window for MDCT.

Actually only the elements in [0,17] and [MDCT_BUF_SIZE/2, MDCT_BUF_SIZE/2 + 17] are actually used. The rest is just to preserve alignment for SIMD implementations.

Definition at line 76 of file mpegaudiodsp_template.c.

◆ ff_mpa_synth_window_fixed

MPA_INT ff_mpa_synth_window_fixed[512+256]

Definition at line 78 of file mpegaudiodsp_template.c.

Referenced by ff_mpc_init(), and mpc_synth().

◆ icos36

const INTFLOAT icos36[9]

static

Initial value:

= {
    FIXR(0.50190991877167369479),
    FIXR(0.51763809020504152469), 
    FIXR(0.55168895948124587824),
    FIXR(0.61038729438072803416),
    FIXR(0.70710678118654752439), 
    FIXR(0.87172339781054900991),
    FIXR(1.18310079157624925896),
    FIXR(1.93185165257813657349), 
    FIXR(5.73685662283492756461),
}

Definition at line 277 of file mpegaudiodsp_template.c.

◆ icos36h

const INTFLOAT icos36h[9]

static

Initial value:

= {
    FIXHR(0.50190991877167369479/2),
    FIXHR(0.51763809020504152469/2), 
    FIXHR(0.55168895948124587824/2),
    FIXHR(0.61038729438072803416/2),
    FIXHR(0.70710678118654752439/2), 
    FIXHR(0.87172339781054900991/2),
    FIXHR(1.18310079157624925896/4),
    FIXHR(1.93185165257813657349/4), 
}

Definition at line 290 of file mpegaudiodsp_template.c.

Macros

Functions

Variables

Macro Definition Documentation

◆ RENAME

◆ OUT_SHIFT

◆ MULS

◆ MACS

◆ MLSS

◆ MULH3

◆ MULLx

◆ SHR

◆ FIXR

◆ FIXHR

◆ SUM8

◆ SUM8P2

◆ C1

◆ C2

◆ C3

◆ C4

◆ C5

◆ C6

◆ C7

◆ C8

Function Documentation

◆ round_sample()

◆ ff_mpadsp_apply_window()

◆ ff_mpa_synth_filter()

◆ ff_mpa_synth_init()

◆ ff_init_mpadsp_tabs()

◆ imdct36()

◆ ff_imdct36_blocks()

Variable Documentation

◆ ff_mdct_win_fixed

◆ ff_mpa_synth_window_fixed

◆ icos36

◆ icos36h