vf_fsppdsp.c File Reference

#include <stdint.h>
#include "vf_fsppdsp.h"
#include "libavutil/common.h"
#include "libavutil/mathematics.h"
#include "libavutil/mem_internal.h"

Go to the source code of this file.

Macros
#define	DCTSIZE   8
#define	FIX(x, s)   (int)((x) * (1 << s) + 0.5)
#define	MULTIPLY16H(x, k)   (((x) * (k)) >> 16)
#define	THRESHOLD(r, x, t)
#define	DESCALE(x, n)   (((x) + (1 << ((n) - 1))) >> n)
#define	STORE(pos)
#define	STORE2(pos)

Typedefs
typedef int32_t	int_simd16_t

Enumerations
enum	{   FIX_0_382683433 = FIX(0.382683433, 14), FIX_0_541196100 = FIX(0.541196100, 14), FIX_0_707106781 = FIX(M_SQRT1_2 , 14), FIX_1_306562965 = FIX(1.306562965, 14),   FIX_1_414213562_A = FIX(M_SQRT2 , 14), FIX_1_847759065 = FIX(1.847759065, 13), FIX_2_613125930 = FIX(-2.613125930, 13), FIX_1_414213562 = FIX(M_SQRT2 , 13),   FIX_1_082392200 = FIX(1.082392200, 13) }

Functions
void	ff_store_slice_c (uint8_t *restrict dst, int16_t *restrict src, ptrdiff_t dst_stride, ptrdiff_t src_stride, ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale)
void	ff_store_slice2_c (uint8_t *restrict dst, int16_t *restrict src, ptrdiff_t dst_stride, ptrdiff_t src_stride, ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale)
void	ff_mul_thrmat_c (const int16_t *restrict thr_adr_noq, int16_t *restrict thr_adr, int q)
void	ff_column_fidct_c (const int16_t *restrict thr_adr, const int16_t *restrict data, int16_t *restrict output, int cnt)
void	ff_row_idct_c (const int16_t *restrict wsptr, int16_t *restrict output_adr, ptrdiff_t output_stride, int cnt)
void	ff_row_fdct_c (int16_t *restrict data, const uint8_t *restrict pixels, ptrdiff_t line_size, int cnt)

Variables
const uint8_t	ff_fspp_dither [8][8]

Macro Definition Documentation

DCTSIZE

#define DCTSIZE   8

Definition at line 31 of file vf_fsppdsp.c.

FIX

#define FIX	(		x,
			s
	)		(int)((x) * (1 << s) + 0.5)

Definition at line 33 of file vf_fsppdsp.c.

MULTIPLY16H

#define MULTIPLY16H	(		x,
			k
	)		(((x) * (k)) >> 16)

Definition at line 35 of file vf_fsppdsp.c.

THRESHOLD

#define THRESHOLD	(		r,
			x,
			t
	)

Value:

    if (((unsigned)((x) + t)) >= t * 2) r = (x); \
    else r = 0;

Definition at line 36 of file vf_fsppdsp.c.

DESCALE

#define DESCALE	(		x,
			n
	)		(((x) + (1 << ((n) - 1))) >> n)

Definition at line 39 of file vf_fsppdsp.c.

STORE

#define STORE

(

pos

)

Value:

    temp = (src[x + pos] + (d[pos] >> log2_scale)) >> (6 - log2_scale);        \
    src[x + pos] = src[x + pos - 8 * src_stride] = 0;                          \
    temp = av_clip_uint8(temp);                                                \
    dst[x + pos] = temp;

STORE2

#define STORE2

(

pos

)

Value:

    temp = (src[x + pos] + src[x + pos + 16 * src_stride] + (d[pos] >> log2_scale)) >> (6 - log2_scale);  \
    src[x + pos + 16 * src_stride] = 0;                                                                   \
    temp = av_clip_uint8(temp);                                                                           \
    dst[x + pos] = temp;

Typedef Documentation

int_simd16_t

typedef int32_t int_simd16_t

Definition at line 41 of file vf_fsppdsp.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
FIX_0_382683433
FIX_0_541196100
FIX_0_707106781
FIX_1_306562965
FIX_1_414213562_A
FIX_1_847759065
FIX_2_613125930
FIX_1_414213562
FIX_1_082392200

Definition at line 43 of file vf_fsppdsp.c.

Function Documentation

ff_store_slice_c()

void ff_store_slice_c	(	uint8_t *restrict	dst,
		int16_t *restrict	src,
		ptrdiff_t	dst_stride,
		ptrdiff_t	src_stride,
		ptrdiff_t	width,
		ptrdiff_t	height,
		ptrdiff_t	log2_scale
	)

Definition at line 67 of file vf_fsppdsp.c.

Referenced by ff_fsppdsp_init().

ff_store_slice2_c()

void ff_store_slice2_c	(	uint8_t *restrict	dst,
		int16_t *restrict	src,
		ptrdiff_t	dst_stride,
		ptrdiff_t	src_stride,
		ptrdiff_t	width,
		ptrdiff_t	height,
		ptrdiff_t	log2_scale
	)

Definition at line 96 of file vf_fsppdsp.c.

Referenced by ff_fsppdsp_init().

ff_mul_thrmat_c()

void ff_mul_thrmat_c	(	const int16_t *restrict	thr_adr_noq,
		int16_t *restrict	thr_adr,
		int	q
	)

Definition at line 124 of file vf_fsppdsp.c.

Referenced by ff_fsppdsp_init().

ff_column_fidct_c()

void ff_column_fidct_c	(	const int16_t *restrict	thr_adr,
		const int16_t *restrict	data,
		int16_t *restrict	output,
		int	cnt
	)

Definition at line 130 of file vf_fsppdsp.c.

Referenced by ff_fsppdsp_init().

ff_row_idct_c()

void ff_row_idct_c	(	const int16_t *restrict	wsptr,
		int16_t *restrict	output_adr,
		ptrdiff_t	output_stride,
		int	cnt
	)

Definition at line 250 of file vf_fsppdsp.c.

Referenced by ff_fsppdsp_init().

ff_row_fdct_c()

void ff_row_fdct_c	(	int16_t *restrict	data,
		const uint8_t *restrict	pixels,
		ptrdiff_t	line_size,
		int	cnt
	)

Definition at line 311 of file vf_fsppdsp.c.

Referenced by ff_fsppdsp_init().

Variable Documentation

ff_fspp_dither

const uint8_t ff_fspp_dither[8][8]

Initial value:

= {
    {  0,  48,  12,  60,   3,  51,  15,  63, },
    { 32,  16,  44,  28,  35,  19,  47,  31, },
    {  8,  56,   4,  52,  11,  59,   7,  55, },
    { 40,  24,  36,  20,  43,  27,  39,  23, },
    {  2,  50,  14,  62,   1,  49,  13,  61, },
    { 34,  18,  46,  30,  33,  17,  45,  29, },
    { 10,  58,   6,  54,   9,  57,   5,  53, },
    { 42,  26,  38,  22,  41,  25,  37,  21, },
}

Definition at line 55 of file vf_fsppdsp.c.

Referenced by ff_store_slice2_c(), and ff_store_slice_c().