blob: e2d7528056f4017a7b35b0afb02643b3fb20ca37
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_SNOW_DWT_H |
22 | #define AVCODEC_SNOW_DWT_H |
23 | |
24 | #include <stddef.h> |
25 | #include <stdint.h> |
26 | |
27 | typedef int DWTELEM; |
28 | typedef short IDWTELEM; |
29 | |
30 | #define MAX_DECOMPOSITIONS 8 |
31 | |
32 | typedef struct DWTCompose { |
33 | IDWTELEM *b0; |
34 | IDWTELEM *b1; |
35 | IDWTELEM *b2; |
36 | IDWTELEM *b3; |
37 | int y; |
38 | } DWTCompose; |
39 | |
40 | /** Used to minimize the amount of memory used in order to |
41 | * optimize cache performance. **/ |
42 | typedef struct slice_buffer_s { |
43 | IDWTELEM **line; ///< For use by idwt and predict_slices. |
44 | IDWTELEM **data_stack; ///< Used for internal purposes. |
45 | int data_stack_top; |
46 | int line_count; |
47 | int line_width; |
48 | int data_count; |
49 | IDWTELEM *base_buffer; ///< Buffer that this structure is caching. |
50 | } slice_buffer; |
51 | |
52 | struct SnowDWTContext; |
53 | |
54 | typedef struct SnowDWTContext { |
55 | void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, |
56 | IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, |
57 | int width); |
58 | void (*horizontal_compose97i)(IDWTELEM *b, IDWTELEM *temp, int width); |
59 | void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, |
60 | uint8_t **block, int b_w, int b_h, int src_x, |
61 | int src_y, int src_stride, slice_buffer *sb, |
62 | int add, uint8_t *dst8); |
63 | } SnowDWTContext; |
64 | |
65 | |
66 | #define DWT_97 0 |
67 | #define DWT_53 1 |
68 | |
69 | #define liftS lift |
70 | #define W_AM 3 |
71 | #define W_AO 0 |
72 | #define W_AS 1 |
73 | |
74 | #undef liftS |
75 | #define W_BM 1 |
76 | #define W_BO 8 |
77 | #define W_BS 4 |
78 | |
79 | #define W_CM 1 |
80 | #define W_CO 0 |
81 | #define W_CS 0 |
82 | |
83 | #define W_DM 3 |
84 | #define W_DO 4 |
85 | #define W_DS 3 |
86 | |
87 | #define slice_buffer_get_line(slice_buf, line_num) \ |
88 | ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] \ |
89 | : ff_slice_buffer_load_line((slice_buf), \ |
90 | (line_num))) |
91 | |
92 | int ff_slice_buffer_init(slice_buffer *buf, int line_count, |
93 | int max_allocated_lines, int line_width, |
94 | IDWTELEM *base_buffer); |
95 | void ff_slice_buffer_release(slice_buffer *buf, int line); |
96 | void ff_slice_buffer_flush(slice_buffer *buf); |
97 | void ff_slice_buffer_destroy(slice_buffer *buf); |
98 | IDWTELEM *ff_slice_buffer_load_line(slice_buffer *buf, int line); |
99 | |
100 | void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, |
101 | IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, |
102 | int width); |
103 | void ff_snow_horizontal_compose97i(IDWTELEM *b, IDWTELEM *temp, int width); |
104 | void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, |
105 | uint8_t **block, int b_w, int b_h, int src_x, |
106 | int src_y, int src_stride, slice_buffer *sb, |
107 | int add, uint8_t *dst8); |
108 | |
109 | int ff_w53_32_c(struct MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t line_size, int h); |
110 | int ff_w97_32_c(struct MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t line_size, int h); |
111 | |
112 | void ff_spatial_dwt(int *buffer, int *temp, int width, int height, int stride, |
113 | int type, int decomposition_count); |
114 | |
115 | void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width, |
116 | int height, int stride_line, int type, |
117 | int decomposition_count); |
118 | void ff_spatial_idwt_buffered_slice(SnowDWTContext *dsp, DWTCompose *cs, |
119 | slice_buffer *slice_buf, IDWTELEM *temp, |
120 | int width, int height, int stride_line, |
121 | int type, int decomposition_count, int y); |
122 | void ff_spatial_idwt(IDWTELEM *buffer, IDWTELEM *temp, int width, int height, |
123 | int stride, int type, int decomposition_count); |
124 | |
125 | void ff_dwt_init(SnowDWTContext *c); |
126 | void ff_dwt_init_x86(SnowDWTContext *c); |
127 | |
128 | #endif /* AVCODEC_DWT_H */ |
129 |