dwt.h
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1 /*
2  * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of Libav.
5  *
6  * Libav 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  * Libav 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 Libav; 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_DWT_H
22 #define AVCODEC_DWT_H
23 
24 #include <stdint.h>
25 
26 typedef int DWTELEM;
27 typedef short IDWTELEM;
28 
29 typedef struct {
34  int y;
35 } DWTCompose;
36 
38 typedef struct slice_buffer_s {
39  IDWTELEM * * line;
46 } slice_buffer;
47 
48 typedef struct DWTContext {
51  void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
52 } DWTContext;
53 
54 #define MAX_DECOMPOSITIONS 8
55 
56 #define DWT_97 0
57 #define DWT_53 1
58 
59 #define liftS lift
60 #if 1
61 #define W_AM 3
62 #define W_AO 0
63 #define W_AS 1
64 
65 #undef liftS
66 #define W_BM 1
67 #define W_BO 8
68 #define W_BS 4
69 
70 #define W_CM 1
71 #define W_CO 0
72 #define W_CS 0
73 
74 #define W_DM 3
75 #define W_DO 4
76 #define W_DS 3
77 #elif 0
78 #define W_AM 55
79 #define W_AO 16
80 #define W_AS 5
81 
82 #define W_BM 3
83 #define W_BO 32
84 #define W_BS 6
85 
86 #define W_CM 127
87 #define W_CO 64
88 #define W_CS 7
89 
90 #define W_DM 7
91 #define W_DO 8
92 #define W_DS 4
93 #elif 0
94 #define W_AM 97
95 #define W_AO 32
96 #define W_AS 6
97 
98 #define W_BM 63
99 #define W_BO 512
100 #define W_BS 10
101 
102 #define W_CM 13
103 #define W_CO 8
104 #define W_CS 4
105 
106 #define W_DM 15
107 #define W_DO 16
108 #define W_DS 5
109 
110 #else
111 
112 #define W_AM 203
113 #define W_AO 64
114 #define W_AS 7
115 
116 #define W_BM 217
117 #define W_BO 2048
118 #define W_BS 12
119 
120 #define W_CM 113
121 #define W_CO 64
122 #define W_CS 7
123 
124 #define W_DM 227
125 #define W_DO 128
126 #define W_DS 9
127 #endif
128 
129 #define slice_buffer_get_line(slice_buf, line_num) ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : ff_slice_buffer_load_line((slice_buf), (line_num)))
130 //#define slice_buffer_get_line(slice_buf, line_num) (ff_slice_buffer_load_line((slice_buf), (line_num)))
131 
132 void ff_slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer);
133 void ff_slice_buffer_release(slice_buffer * buf, int line);
137 
138 void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
140 void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
141 
142 int ff_w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
143 int ff_w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
144 
145 void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count);
146 
147 void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line, int type, int decomposition_count);
148 void ff_spatial_idwt_buffered_slice(DWTContext *dsp, DWTCompose *cs, slice_buffer * slice_buf, int width, int height, int stride_line, int type, int decomposition_count, int y);
149 void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count);
150 
151 void ff_dwt_init(DWTContext *c);
152 void ff_dwt_init_x86(DWTContext *c);
153 
154 #endif /* AVCODEC_DWT_H */