mpegaudiodsp_template.c File Reference

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

Go to the source code of this file.

Macros
#define	RENAME(n)
#define	OUT_SHIFT   (WFRAC_BITS + FRAC_BITS - 15)
#define	MULS(ra, rb)
#define	MACS(rt, ra, rb)
#define	MLSS(rt, ra, rb)
#define	MULH3(x, y, s)
#define	MULLx(x, y, s)
#define	SHR(a, b)
#define	FIXR(a)
#define	FIXHR(a)
#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	ff_mpadsp_apply_window_TMPL (MPA_INT *synth_buf, MPA_INT *window, int *dither_state, OUT_INT *samples, ptrdiff_t incr)
void	ff_mpa_synth_filter_TMPL (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)
static av_cold void	mpa_synth_init (MPA_INT *window)
static av_cold void	mpa_synth_window_init (void)
av_cold void	ff_mpa_synth_init_TMPL (void)
static void	imdct36 (INTFLOAT *out, INTFLOAT *buf, SUINTFLOAT *in, INTFLOAT *win)
void	ff_imdct36_blocks_TMPL (INTFLOAT *out, INTFLOAT *buf, INTFLOAT *in, int count, int switch_point, int block_type)

Variables
INTFLOAT	ff_mdct_win_TMPL [8][MDCT_BUF_SIZE]
	Window for MDCT.
MPA_INT	ff_mpa_synth_window_TMPL [512+256]
static const INTFLOAT	icos36 [9]
static const INTFLOAT	icos36h [9]

Macro Definition Documentation

RENAME

#define RENAME

(

n

)

Value:

n##_fixed

Definition at line 53 of file mpegaudiodsp_template.c.

Referenced by ff_imdct36_blocks_TMPL(), and mpa_synth_window_init().

OUT_SHIFT

#define OUT_SHIFT   (WFRAC_BITS + FRAC_BITS - 15)

Definition at line 54 of file mpegaudiodsp_template.c.

MULS

#define MULS	(		ra,
			rb )

Value:

MUL64(ra, rb)

Definition at line 64 of file mpegaudiodsp_template.c.

MACS

#define MACS	(		rt,
			ra,
			rb )

Value:

MAC64(rt, ra, rb)

Definition at line 65 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window_TMPL().

MLSS

#define MLSS	(		rt,
			ra,
			rb )

Value:

MLS64(rt, ra, rb)

Definition at line 66 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window_TMPL().

MULH3

#define MULH3	(		x,
			y,
			s )

Value:

MULH((s)*(x), y)

Definition at line 67 of file mpegaudiodsp_template.c.

Referenced by imdct36().

MULLx

#define MULLx	(		x,
			y,
			s )

Value:

MULL((int)(x),(y),s)

Definition at line 68 of file mpegaudiodsp_template.c.

Referenced by imdct36().

SHR

#define SHR	(		a,
			b )

Value:

(((int)(a))>>(b))

Definition at line 69 of file mpegaudiodsp_template.c.

Referenced by imdct36().

FIXR

#define FIXR

(

a

)

Value:

((int)((a) * FRAC_ONE + 0.5))

Definition at line 70 of file mpegaudiodsp_template.c.

FIXHR

#define FIXHR

(

a

)

Value:

((int)((a) * (1LL<<32) + 0.5))

Definition at line 71 of file mpegaudiodsp_template.c.

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 82 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window_TMPL().

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 94 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window_TMPL().

C1

#define C1   FIXHR(0.98480775301220805936/2)

Definition at line 238 of file mpegaudiodsp_template.c.

Referenced by build_map(), gbr16ptopacked30(), idct4col_add(), idct4col_put(), imdct36(), lbr_bank_c(), and xbr_filter().

C2

#define C2   FIXHR(0.93969262078590838405/2)

Definition at line 239 of file mpegaudiodsp_template.c.

Referenced by build_map(), gbr16ptopacked30(), idct4col_add(), idct4col_put(), imdct36(), and lbr_bank_c().

C3

#define C3   FIXHR(0.86602540378443864676/2)

Definition at line 240 of file mpegaudiodsp_template.c.

C4

#define C4   FIXHR(0.76604444311897803520/2)

Definition at line 241 of file mpegaudiodsp_template.c.

C5

#define C5   FIXHR(0.64278760968653932632/2)

Definition at line 242 of file mpegaudiodsp_template.c.

C6

#define C6   FIXHR(0.5/2)

Definition at line 243 of file mpegaudiodsp_template.c.

C7

#define C7   FIXHR(0.34202014332566873304/2)

Definition at line 244 of file mpegaudiodsp_template.c.

Referenced by imdct36().

C8

#define C8   FIXHR(0.17364817766693034885/2)

Definition at line 245 of file mpegaudiodsp_template.c.

Referenced by imdct36().

Function Documentation

round_sample()

static int round_sample ( int64_t * sum )

inlinestatic

Definition at line 56 of file mpegaudiodsp_template.c.

Referenced by ff_mpadsp_apply_window_TMPL().

ff_mpadsp_apply_window_TMPL()

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

Definition at line 123 of file mpegaudiodsp_template.c.

ff_mpa_synth_filter_TMPL()

void ff_mpa_synth_filter_TMPL	(	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 178 of file mpegaudiodsp_template.c.

mpa_synth_init()

static av_cold void mpa_synth_init ( MPA_INT * window )

static

Definition at line 197 of file mpegaudiodsp_template.c.

Referenced by mpa_synth_window_init().

mpa_synth_window_init()

static av_cold void mpa_synth_window_init ( void )

static

Definition at line 226 of file mpegaudiodsp_template.c.

Referenced by ff_mpa_synth_init_TMPL().

ff_mpa_synth_init_TMPL()

av_cold void ff_mpa_synth_init_TMPL

(

void

)

Definition at line 231 of file mpegaudiodsp_template.c.

imdct36()

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

static

Definition at line 274 of file mpegaudiodsp_template.c.

Referenced by ff_imdct36_blocks_TMPL().

ff_imdct36_blocks_TMPL()

void ff_imdct36_blocks_TMPL	(	INTFLOAT *	out,
		INTFLOAT *	buf,
		INTFLOAT *	in,
		int	count,
		int	switch_point,
		int	block_type )

Definition at line 354 of file mpegaudiodsp_template.c.

Variable Documentation

ff_mdct_win_TMPL

INTFLOAT ff_mdct_win_TMPL[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 78 of file mpegaudiodsp_template.c.

ff_mpa_synth_window_TMPL

MPA_INT ff_mpa_synth_window_TMPL[512+256]

Definition at line 80 of file mpegaudiodsp_template.c.

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 248 of file mpegaudiodsp_template.c.

Referenced by imdct36().

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 261 of file mpegaudiodsp_template.c.

Referenced by imdct36().