FFmpeg: libavcodec/dirac_dwt.h Source File

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dirac_dwt.h

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1 /*

3 *

4 * This file is part of FFmpeg.

5 *

6 * FFmpeg is free software; you can redistribute it and/or

7 * modify it under the terms of the GNU Lesser General Public

8 * License as published by the Free Software Foundation; either

9 * version 2.1 of the License, or (at your option) any later version.

10 *

11 * FFmpeg is distributed in the hope that it will be useful,

12 * but WITHOUT ANY WARRANTY; without even the implied warranty of

13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

14 * Lesser General Public License for more details.

15 *

16 * You should have received a copy of the GNU Lesser General Public

17 * License along with FFmpeg; if not, write to the Free Software

18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

19 */

21 #ifndef AVCODEC_DIRAC_DWT_H

22 #define AVCODEC_DIRAC_DWT_H

24 #include <stdint.h>

26 typedef int DWTELEM;

27 typedef short IDWTELEM;

29 #define MAX_DWT_SUPPORT 8

30 #define MAX_DECOMPOSITIONS 8

32 typedef struct DWTCompose {

33 uint8_t *b[MAX_DWT_SUPPORT];

34 int y;

35 } DWTCompose;

37 typedef struct DWTPlane {

38 int width;

39 int height;

40 int stride;

41 uint8_t *buf;

42 uint8_t *buf_base;

43 uint8_t *tmp;

44 } DWTPlane;

46 struct DWTContext;

48 // Possible prototypes for vertical_compose functions

49 typedef void (*vertical_compose_2tap)(uint8_t *b0, uint8_t *b1, int width);

50 typedef void (*vertical_compose_3tap)(uint8_t *b0, uint8_t *b1, uint8_t *b2, int width);

51 typedef void (*vertical_compose_5tap)(uint8_t *b0, uint8_t *b1, uint8_t *b2, uint8_t *b3, uint8_t *b4, int width);

52 typedef void (*vertical_compose_9tap)(uint8_t *dst, uint8_t *b[8], int width);

54 typedef struct DWTContext {

55 uint8_t *buffer;

56 uint8_t *temp;

57 int width;

58 int height;

59 int stride;

60 int decomposition_count;

61 int support;

63 void (*spatial_compose)(struct DWTContext *cs, int level, int width, int height, int stride);

64 union {

65 vertical_compose_3tap tap3;

66 vertical_compose_5tap tap5;

67 vertical_compose_9tap tap9;

68 } vertical_compose_l0, vertical_compose_h0;

69 vertical_compose_3tap vertical_compose_l1;

70 vertical_compose_3tap vertical_compose_h1;

71 vertical_compose_2tap vertical_compose; ///< one set of lowpass and highpass combined

72 void (*horizontal_compose)(uint8_t *b, uint8_t *tmp, int width);

74 DWTCompose cs[MAX_DECOMPOSITIONS];

75 } DWTContext;

77 enum dwt_type {

78 DWT_SNOW_DAUB9_7,

79 DWT_SNOW_LEGALL5_3,

80 DWT_DIRAC_DD9_7,

81 DWT_DIRAC_LEGALL5_3,

82 DWT_DIRAC_DD13_7,

83 DWT_DIRAC_HAAR0,

84 DWT_DIRAC_HAAR1,

85 DWT_DIRAC_FIDELITY,

86 DWT_DIRAC_DAUB9_7,

87 DWT_NUM_TYPES

88 };

90 // -1 if an error occurred, e.g. the dwt_type isn't recognized

91 int ff_spatial_idwt_init(DWTContext *d, DWTPlane *p, enum dwt_type type,

92 int decomposition_count, int bit_depth);

93 void ff_spatial_idwt_init_x86(DWTContext *d, enum dwt_type type);

95 void ff_spatial_idwt_slice2(DWTContext *d, int y);

97 // shared stuff for simd optimizations

98 #define COMPOSE_53iL0(b0, b1, b2)\

99 (b1 - (unsigned)((int)(b0 + (unsigned)(b2) + 2) >> 2))

100

101 #define COMPOSE_DIRAC53iH0(b0, b1, b2)\

102 (b1 + (unsigned)((int)(b0 + (unsigned)(b2) + 1) >> 1))

103

104 #define COMPOSE_DD97iH0(b0, b1, b2, b3, b4)\

105 (int)(((unsigned)(b2) + ((int)(9U*b1 + 9U*b3 - b4 - b0 + 8) >> 4)))

106

107 #define COMPOSE_DD137iL0(b0, b1, b2, b3, b4)\

108 (int)(((unsigned)(b2) - ((int)(9U*b1 + 9U*b3 - b4 - b0 + 16) >> 5)))

109

110 #define COMPOSE_HAARiL0(b0, b1)\

111 ((int)(b0 - (unsigned)((int)(b1 + 1U) >> 1)))

112

113 #define COMPOSE_HAARiH0(b0, b1)\

114 ((int)(b0 + (unsigned)(b1)))

115

116 #define COMPOSE_FIDELITYiL0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\

117 ((unsigned)b4 - ((int)(-8*(b0+(unsigned)b8) + 21*(b1+(unsigned)b7) - 46*(b2+(unsigned)b6) + 161*(b3+(unsigned)b5) + 128) >> 8))

118

119 #define COMPOSE_FIDELITYiH0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\

120 ((unsigned)b4 + ((int)(-2*(b0+(unsigned)b8) + 10*(b1+(unsigned)b7) - 25*(b2+(unsigned)b6) + 81*(b3+(unsigned)b5) + 128) >> 8))

121

122 #define COMPOSE_DAUB97iL1(b0, b1, b2)\

123 ((unsigned)(b1) - ((int)(1817*(b0 + (unsigned)b2) + 2048) >> 12))

124

125 #define COMPOSE_DAUB97iH1(b0, b1, b2)\

126 ((unsigned)(b1) - ((int)( 113*(b0 + (unsigned)b2) + 64) >> 7))

127

128 #define COMPOSE_DAUB97iL0(b0, b1, b2)\

129 ((unsigned)(b1) + ((int)( 217*(b0 + (unsigned)b2) + 2048) >> 12))

130

131 #define COMPOSE_DAUB97iH0(b0, b1, b2)\

132 ((unsigned)(b1) + ((int)(6497*(b0 + (unsigned)b2) + 2048) >> 12))

133

134

135 #endif /* AVCODEC_DWT_H */

DWTPlane::buf

uint8_t * buf

Definition: dirac_dwt.h:41

ff_spatial_idwt_init

int ff_spatial_idwt_init(DWTContext *d, DWTPlane *p, enum dwt_type type, int decomposition_count, int bit_depth)

Definition: dirac_dwt.c:35

bit_depth

static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)

Definition: af_astats.c:227

level

uint8_t level

Definition: svq3.c:204

MAX_DECOMPOSITIONS

#define MAX_DECOMPOSITIONS

Definition: dirac_dwt.h:30

DWTContext::vertical_compose_l0

union DWTContext::@56 vertical_compose_l0

DWT_SNOW_DAUB9_7

@ DWT_SNOW_DAUB9_7

Definition: dirac_dwt.h:78

DWTContext::cs

DWTCompose cs[MAX_DECOMPOSITIONS]

Definition: dirac_dwt.h:74

tmp

static uint8_t tmp[11]

Definition: aes_ctr.c:28

DWTPlane

Definition: dirac_dwt.h:37

#define b

Definition: input.c:41

DWTCompose::b

uint8_t * b[MAX_DWT_SUPPORT]

Definition: dirac_dwt.h:33

DWT_SNOW_LEGALL5_3

@ DWT_SNOW_LEGALL5_3

Definition: dirac_dwt.h:79

DWTContext::vertical_compose_l1

vertical_compose_3tap vertical_compose_l1

Definition: dirac_dwt.h:69

vertical_compose_2tap

void(* vertical_compose_2tap)(uint8_t *b0, uint8_t *b1, int width)

Definition: dirac_dwt.h:49

static double b1(void *priv, double x, double y)

Definition: vf_xfade.c:1771

MAX_DWT_SUPPORT

#define MAX_DWT_SUPPORT

Definition: dirac_dwt.h:29

DWTContext::vertical_compose

vertical_compose_2tap vertical_compose

one set of lowpass and highpass combined

Definition: dirac_dwt.h:71

DWTContext::spatial_compose

void(* spatial_compose)(struct DWTContext *cs, int level, int width, int height, int stride)

Definition: dirac_dwt.h:63

type

it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type

Definition: writing_filters.txt:86

DWT_DIRAC_FIDELITY

@ DWT_DIRAC_FIDELITY

Definition: dirac_dwt.h:85

DWTCompose

Definition: dirac_dwt.h:32

ff_spatial_idwt_slice2

void ff_spatial_idwt_slice2(DWTContext *d, int y)

Definition: dirac_dwt.c:68

DWTCompose::y

int y

Definition: dirac_dwt.h:34

DWTContext::width

int width

Definition: dirac_dwt.h:57

width

#define width

DWT_DIRAC_HAAR1

@ DWT_DIRAC_HAAR1

Definition: dirac_dwt.h:84

static double b3(void *priv, double x, double y)

Definition: vf_xfade.c:1773

DWT_DIRAC_HAAR0

@ DWT_DIRAC_HAAR0

Definition: dirac_dwt.h:83

DWTContext::tap5

vertical_compose_5tap tap5

Definition: dirac_dwt.h:66

DWTContext::horizontal_compose

void(* horizontal_compose)(uint8_t *b, uint8_t *tmp, int width)

Definition: dirac_dwt.h:72

DWTContext::decomposition_count

int decomposition_count

Definition: dirac_dwt.h:60

DWTPlane::stride

int stride

Definition: dirac_dwt.h:40

dwt_type

Definition: dirac_dwt.h:77

DWTContext::temp

uint8_t * temp

Definition: dirac_dwt.h:56

vertical_compose_5tap

void(* vertical_compose_5tap)(uint8_t *b0, uint8_t *b1, uint8_t *b2, uint8_t *b3, uint8_t *b4, int width)

Definition: dirac_dwt.h:51

DWT_DIRAC_DD13_7

@ DWT_DIRAC_DD13_7

Definition: dirac_dwt.h:82

DWTContext::vertical_compose_h0

union DWTContext::@56 vertical_compose_h0

DWTContext::tap9

vertical_compose_9tap tap9

Definition: dirac_dwt.h:67

static double b2(void *priv, double x, double y)

Definition: vf_xfade.c:1772

DWTPlane::buf_base

uint8_t * buf_base

Definition: dirac_dwt.h:42

DWTContext::tap3

vertical_compose_3tap tap3

Definition: dirac_dwt.h:65

DWTELEM

int DWTELEM

Definition: dirac_dwt.h:26

vertical_compose_9tap

void(* vertical_compose_9tap)(uint8_t *dst, uint8_t *b[8], int width)

Definition: dirac_dwt.h:52

vertical_compose_3tap

void(* vertical_compose_3tap)(uint8_t *b0, uint8_t *b1, uint8_t *b2, int width)

Definition: dirac_dwt.h:50

DWTContext::height

int height

Definition: dirac_dwt.h:58

DWT_DIRAC_DAUB9_7

@ DWT_DIRAC_DAUB9_7

Definition: dirac_dwt.h:86

DWTContext::support

int support

Definition: dirac_dwt.h:61

ff_spatial_idwt_init_x86

void ff_spatial_idwt_init_x86(DWTContext *d, enum dwt_type type)

Definition: dirac_dwt_init.c:158

DWTContext

Definition: dirac_dwt.h:54

DWTContext::stride

int stride

Definition: dirac_dwt.h:59

DWT_NUM_TYPES

@ DWT_NUM_TYPES

Definition: dirac_dwt.h:87

Definition: ffmpeg_filter.c:156

DWT_DIRAC_LEGALL5_3

@ DWT_DIRAC_LEGALL5_3

Definition: dirac_dwt.h:81

IDWTELEM

short IDWTELEM

Definition: dirac_dwt.h:27

static double b0(void *priv, double x, double y)

Definition: vf_xfade.c:1770

DWTContext::vertical_compose_h1

vertical_compose_3tap vertical_compose_h1

Definition: dirac_dwt.h:70

DWTPlane::width

int width

Definition: dirac_dwt.h:38

DWT_DIRAC_DD9_7

@ DWT_DIRAC_DD9_7

Definition: dirac_dwt.h:80

DWTContext::buffer

uint8_t * buffer

Definition: dirac_dwt.h:55

DWTPlane::tmp

uint8_t * tmp

Definition: dirac_dwt.h:43

DWTPlane::height

int height

Definition: dirac_dwt.h:39

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