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_DWT_H
22#define AVCODEC_DWT_H
23
24#include <stdint.h>
25
26typedef int DWTELEM;
27typedef short IDWTELEM;
28
29typedef struct {
30    IDWTELEM *b0;
31    IDWTELEM *b1;
32    IDWTELEM *b2;
33    IDWTELEM *b3;
34    int y;
35} DWTCompose;
36
37/** Used to minimize the amount of memory used in order to optimize cache performance. **/
38typedef struct slice_buffer_s {
39    IDWTELEM * * line; ///< For use by idwt and predict_slices.
40    IDWTELEM * * data_stack; ///< Used for internal purposes.
41    int data_stack_top;
42    int line_count;
43    int line_width;
44    int data_count;
45    IDWTELEM * base_buffer; ///< Buffer that this structure is caching.
46} slice_buffer;
47
48typedef struct DWTContext {
49    void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
50    void (*horizontal_compose97i)(IDWTELEM *b, int width);
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
132void ff_slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer);
133void ff_slice_buffer_release(slice_buffer * buf, int line);
134void ff_slice_buffer_flush(slice_buffer * buf);
135void ff_slice_buffer_destroy(slice_buffer * buf);
136IDWTELEM * ff_slice_buffer_load_line(slice_buffer * buf, int line);
137
138void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
139void ff_snow_horizontal_compose97i(IDWTELEM *b, int width);
140void 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
142int ff_w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
143int ff_w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
144
145void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count);
146
147void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line, int type, int decomposition_count);
148void 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);
149void ff_spatial_idwt_init(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count);
150void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count, int y);
151void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count);
152
153void ff_dwt_init(DWTContext *c);
154void ff_dwt_init_x86(DWTContext *c);
155
156#endif /* AVCODEC_DWT_H */
157