repositories / deb_ffmpeg.git / blame
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|---|---|---|
| 2ba45a60 DM |
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 <stdint.h> | |
| 25 | ||
| 26 | typedef int DWTELEM; | |
| 27 | typedef short IDWTELEM; | |
| 28 | ||
| 29 | #define MAX_DECOMPOSITIONS 8 | |
| 30 | ||
| 31 | typedef struct DWTCompose { | |
| 32 | IDWTELEM *b0; | |
| 33 | IDWTELEM *b1; | |
| 34 | IDWTELEM *b2; | |
| 35 | IDWTELEM *b3; | |
| 36 | int y; | |
| 37 | } DWTCompose; | |
| 38 | ||
| 39 | /** Used to minimize the amount of memory used in order to | |
| 40 | * optimize cache performance. **/ | |
| 41 | typedef struct slice_buffer_s { | |
| 42 | IDWTELEM **line; ///< For use by idwt and predict_slices. | |
| 43 | IDWTELEM **data_stack; ///< Used for internal purposes. | |
| 44 | int data_stack_top; | |
| 45 | int line_count; | |
| 46 | int line_width; | |
| 47 | int data_count; | |
| 48 | IDWTELEM *base_buffer; ///< Buffer that this structure is caching. | |
| 49 | } slice_buffer; | |
| 50 | ||
| 51 | struct SnowDWTContext; | |
| 52 | ||
| 53 | typedef struct SnowDWTContext { | |
| 54 | void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, | |
| 55 | IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, | |
| 56 | int width); | |
| 57 | void (*horizontal_compose97i)(IDWTELEM *b, IDWTELEM *temp, int width); | |
| 58 | void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, | |
| 59 | uint8_t **block, int b_w, int b_h, int src_x, | |
| 60 | int src_y, int src_stride, slice_buffer *sb, | |
| 61 | int add, uint8_t *dst8); | |
| 62 | } SnowDWTContext; | |
| 63 | ||
| 64 | ||
| 65 | #define DWT_97 0 | |
| 66 | #define DWT_53 1 | |
| 67 | ||
| 68 | #define liftS lift | |
| 69 | #define W_AM 3 | |
| 70 | #define W_AO 0 | |
| 71 | #define W_AS 1 | |
| 72 | ||
| 73 | #undef liftS | |
| 74 | #define W_BM 1 | |
| 75 | #define W_BO 8 | |
| 76 | #define W_BS 4 | |
| 77 | ||
| 78 | #define W_CM 1 | |
| 79 | #define W_CO 0 | |
| 80 | #define W_CS 0 | |
| 81 | ||
| 82 | #define W_DM 3 | |
| 83 | #define W_DO 4 | |
| 84 | #define W_DS 3 | |
| 85 | ||
| 86 | #define slice_buffer_get_line(slice_buf, line_num) \ | |
| 87 | ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] \ | |
| 88 | : ff_slice_buffer_load_line((slice_buf), \ | |
| 89 | (line_num))) | |
| 90 | ||
| 91 | int ff_slice_buffer_init(slice_buffer *buf, int line_count, | |
| 92 | int max_allocated_lines, int line_width, | |
| 93 | IDWTELEM *base_buffer); | |
| 94 | void ff_slice_buffer_release(slice_buffer *buf, int line); | |
| 95 | void ff_slice_buffer_flush(slice_buffer *buf); | |
| 96 | void ff_slice_buffer_destroy(slice_buffer *buf); | |
| 97 | IDWTELEM *ff_slice_buffer_load_line(slice_buffer *buf, int line); | |
| 98 | ||
| 99 | void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, | |
| 100 | IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, | |
| 101 | int width); | |
| 102 | void ff_snow_horizontal_compose97i(IDWTELEM *b, IDWTELEM *temp, int width); | |
| 103 | void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, | |
| 104 | uint8_t **block, int b_w, int b_h, int src_x, | |
| 105 | int src_y, int src_stride, slice_buffer *sb, | |
| 106 | int add, uint8_t *dst8); | |
| 107 | ||
| 108 | int ff_w53_32_c(struct MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h); | |
| 109 | int ff_w97_32_c(struct MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h); | |
| 110 | ||
| 111 | void ff_spatial_dwt(int *buffer, int *temp, int width, int height, int stride, | |
| 112 | int type, int decomposition_count); | |
| 113 | ||
| 114 | void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width, | |
| 115 | int height, int stride_line, int type, | |
| 116 | int decomposition_count); | |
| 117 | void ff_spatial_idwt_buffered_slice(SnowDWTContext *dsp, DWTCompose *cs, | |
| 118 | slice_buffer *slice_buf, IDWTELEM *temp, | |
| 119 | int width, int height, int stride_line, | |
| 120 | int type, int decomposition_count, int y); | |
| 121 | void ff_spatial_idwt(IDWTELEM *buffer, IDWTELEM *temp, int width, int height, | |
| 122 | int stride, int type, int decomposition_count); | |
| 123 | ||
| 124 | void ff_dwt_init(SnowDWTContext *c); | |
| 125 | void ff_dwt_init_x86(SnowDWTContext *c); | |
| 126 | ||
| 127 | #endif /* AVCODEC_DWT_H */ |