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dirac_dwt.h
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1 /*
2  * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at>
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  */
20 
21 #ifndef AVCODEC_DIRAC_DWT_H
22 #define AVCODEC_DIRAC_DWT_H
23 
24 #include <stdint.h>
25 
26 typedef int DWTELEM;
27 typedef short IDWTELEM;
28 
29 #define MAX_DWT_SUPPORT 8
30 #define MAX_DECOMPOSITIONS 8
31 
32 typedef struct DWTCompose {
34  int y;
35 } DWTCompose;
36 
37 typedef struct DWTPlane {
38  int width;
39  int height;
40  int stride;
44 } DWTPlane;
45 
46 struct DWTContext;
47 
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);
53 
54 typedef struct DWTContext {
57  int width;
58  int height;
59  int stride;
61  int support;
62 
63  void (*spatial_compose)(struct DWTContext *cs, int level, int width, int height, int stride);
68  void (*vertical_compose)(void); ///< one set of lowpass and highpass combined
70 
72 } DWTContext;
73 
74 enum dwt_type {
85 };
86 
87 // -1 if an error occurred, e.g. the dwt_type isn't recognized
91 
92 void ff_spatial_idwt_slice2(DWTContext *d, int y);
93 
94 // shared stuff for simd optimizations
95 #define COMPOSE_53iL0(b0, b1, b2)\
96  (b1 - (unsigned)((int)(b0 + (unsigned)(b2) + 2) >> 2))
97 
98 #define COMPOSE_DIRAC53iH0(b0, b1, b2)\
99  (b1 + (unsigned)((int)(b0 + (unsigned)(b2) + 1) >> 1))
100 
101 #define COMPOSE_DD97iH0(b0, b1, b2, b3, b4)\
102  (int)(((unsigned)(b2) + ((int)(9U*b1 + 9U*b3 - b4 - b0 + 8) >> 4)))
103 
104 #define COMPOSE_DD137iL0(b0, b1, b2, b3, b4)\
105  (int)(((unsigned)(b2) - ((int)(9U*b1 + 9U*b3 - b4 - b0 + 16) >> 5)))
106 
107 #define COMPOSE_HAARiL0(b0, b1)\
108  ((int)(b0 - (unsigned)((int)(b1 + 1U) >> 1)))
109 
110 #define COMPOSE_HAARiH0(b0, b1)\
111  ((int)(b0 + (unsigned)(b1)))
112 
113 #define COMPOSE_FIDELITYiL0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\
114  ((unsigned)b4 - ((int)(-8*(b0+(unsigned)b8) + 21*(b1+(unsigned)b7) - 46*(b2+(unsigned)b6) + 161*(b3+(unsigned)b5) + 128) >> 8))
115 
116 #define COMPOSE_FIDELITYiH0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\
117  ((unsigned)b4 + ((int)(-2*(b0+(unsigned)b8) + 10*(b1+(unsigned)b7) - 25*(b2+(unsigned)b6) + 81*(b3+(unsigned)b5) + 128) >> 8))
118 
119 #define COMPOSE_DAUB97iL1(b0, b1, b2)\
120  ((unsigned)(b1) - ((int)(1817*(b0 + (unsigned)b2) + 2048) >> 12))
121 
122 #define COMPOSE_DAUB97iH1(b0, b1, b2)\
123  ((unsigned)(b1) - ((int)( 113*(b0 + (unsigned)b2) + 64) >> 7))
124 
125 #define COMPOSE_DAUB97iL0(b0, b1, b2)\
126  ((unsigned)(b1) + ((int)( 217*(b0 + (unsigned)b2) + 2048) >> 12))
127 
128 #define COMPOSE_DAUB97iH0(b0, b1, b2)\
129  ((unsigned)(b1) + ((int)(6497*(b0 + (unsigned)b2) + 2048) >> 12))
130 
131 
132 #endif /* AVCODEC_DWT_H */
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
uint8_t * b[MAX_DWT_SUPPORT]
Definition: dirac_dwt.h:33
const char * b
Definition: vf_curves.c:113
uint8_t * buf
Definition: dirac_dwt.h:41
int decomposition_count
Definition: dirac_dwt.h:60
short IDWTELEM
Definition: dirac_dwt.h:27
uint8_t * tmp
Definition: dirac_dwt.h:43
uint8_t
int support
Definition: dirac_dwt.h:61
void(* spatial_compose)(struct DWTContext *cs, int level, int width, int height, int stride)
Definition: dirac_dwt.h:63
void ff_spatial_idwt_slice2(DWTContext *d, int y)
Definition: dirac_dwt.c:67
void(* vertical_compose_h1)(void)
Definition: dirac_dwt.h:67
int height
Definition: dirac_dwt.h:39
uint8_t * temp
Definition: dirac_dwt.h:56
uint8_t * buffer
Definition: dirac_dwt.h:55
#define MAX_DWT_SUPPORT
Definition: dirac_dwt.h:29
int width
Definition: dirac_dwt.h:38
#define width
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)
Definition: af_astats.c:155
void(* vertical_compose_2tap)(uint8_t *b0, uint8_t *b1, int width)
Definition: dirac_dwt.h:49
dwt_type
Definition: dirac_dwt.h:74
uint8_t * buf_base
Definition: dirac_dwt.h:42
void(* vertical_compose_h0)(void)
Definition: dirac_dwt.h:65
void ff_spatial_idwt_init_x86(DWTContext *d, enum dwt_type type)
int DWTELEM
Definition: dirac_dwt.h:26
GLint GLenum type
Definition: opengl_enc.c:105
DWTCompose cs[MAX_DECOMPOSITIONS]
Definition: dirac_dwt.h:71
void(* horizontal_compose)(uint8_t *b, uint8_t *tmp, int width)
Definition: dirac_dwt.h:69
int ff_spatial_idwt_init(DWTContext *d, DWTPlane *p, enum dwt_type type, int decomposition_count, int bit_depth)
Definition: dirac_dwt.c:36
int stride
Definition: dirac_dwt.h:59
uint8_t level
Definition: svq3.c:207
#define MAX_DECOMPOSITIONS
Definition: dirac_dwt.h:30
void(* vertical_compose_3tap)(uint8_t *b0, uint8_t *b1, uint8_t *b2, int width)
Definition: dirac_dwt.h:50
void(* vertical_compose)(void)
one set of lowpass and highpass combined
Definition: dirac_dwt.h:68
void(* vertical_compose_9tap)(uint8_t *dst, uint8_t *b[8], int width)
Definition: dirac_dwt.h:52
int height
Definition: dirac_dwt.h:58
int stride
Definition: dirac_dwt.h:40
void(* vertical_compose_l0)(void)
Definition: dirac_dwt.h:64
int width
Definition: dirac_dwt.h:57
void(* vertical_compose_l1)(void)
Definition: dirac_dwt.h:66
static uint8_t tmp[11]
Definition: aes_ctr.c:26