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snow_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_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 {
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.
49  IDWTELEM *base_buffer; ///< Buffer that this structure is caching.
50 } slice_buffer;
51 
52 struct SnowDWTContext;
53 
54 typedef struct SnowDWTContext {
56  IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
57  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);
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);
99 
101  IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
102  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 
116  int height, int stride_line, int type,
117  int decomposition_count);
119  slice_buffer *slice_buf, IDWTELEM *temp,
120  int width, int height, int stride_line,
121  int type, int decomposition_count, int y);
123  int stride, int type, int decomposition_count);
124 
127 
128 #endif /* AVCODEC_DWT_H */
void ff_snow_horizontal_compose97i(IDWTELEM *b, IDWTELEM *temp, int width)
Definition: snow_dwt.c:465
void ff_spatial_idwt(IDWTELEM *buffer, IDWTELEM *temp, int width, int height, int stride, int type, int decomposition_count)
Definition: snow_dwt.c:731
else temp
Definition: vf_mcdeint.c:259
const char * b
Definition: vf_curves.c:113
void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width, int height, int stride_line, int type, int decomposition_count)
Definition: snow_dwt.c:639
int ff_slice_buffer_init(slice_buffer *buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM *base_buffer)
Definition: snow_dwt.c:28
void ff_slice_buffer_flush(slice_buffer *buf)
Definition: snow_dwt.c:91
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)
Definition: snow_dwt.h:59
short IDWTELEM
Definition: dirac_dwt.h:27
uint8_t
void ff_spatial_dwt(int *buffer, int *temp, int width, int height, int stride, int type, int decomposition_count)
Definition: snow_dwt.c:319
void(* vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width)
Definition: snow_dwt.h:55
#define height
int ff_w53_32_c(struct MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t line_size, int h)
Definition: snow_dwt.c:832
void ff_dwt_init(SnowDWTContext *c)
Definition: snow_dwt.c:850
int data_stack_top
Definition: snow_dwt.h:45
int data_count
Definition: snow_dwt.h:48
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)
Definition: snow.c:36
int line_count
Definition: snow_dwt.h:46
IDWTELEM * b0
Definition: snow_dwt.h:33
Definition: graph2dot.c:48
#define width
IDWTELEM * b3
Definition: snow_dwt.h:36
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
IDWTELEM * base_buffer
Buffer that this structure is caching.
Definition: snow_dwt.h:49
void ff_slice_buffer_release(slice_buffer *buf, int line)
Definition: snow_dwt.c:78
void * buf
Definition: avisynth_c.h:553
GLint GLenum type
Definition: opengl_enc.c:105
short IDWTELEM
Definition: snow_dwt.h:28
int DWTELEM
Definition: snow_dwt.h:27
void ff_slice_buffer_destroy(slice_buffer *buf)
Definition: snow_dwt.c:103
IDWTELEM * b1
Definition: snow_dwt.h:34
MpegEncContext.
Definition: mpegvideo.h:78
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
IDWTELEM * b2
Definition: snow_dwt.h:35
int line_width
Definition: snow_dwt.h:47
IDWTELEM ** line
For use by idwt and predict_slices.
Definition: snow_dwt.h:43
static double c[64]
IDWTELEM * ff_slice_buffer_load_line(slice_buffer *buf, int line)
Definition: snow_dwt.c:62
void ff_spatial_idwt_buffered_slice(SnowDWTContext *dsp, DWTCompose *cs, slice_buffer *slice_buf, IDWTELEM *temp, int width, int height, int stride_line, int type, int decomposition_count, int y)
Definition: snow_dwt.c:658
void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width)
Definition: snow_dwt.c:529
int ff_w97_32_c(struct MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t line_size, int h)
Definition: snow_dwt.c:837
IDWTELEM ** data_stack
Used for internal purposes.
Definition: snow_dwt.h:44
void ff_dwt_init_x86(SnowDWTContext *c)
Definition: snowdsp.c:880
Used to minimize the amount of memory used in order to optimize cache performance.
Definition: snow_dwt.h:42
void(* horizontal_compose97i)(IDWTELEM *b, IDWTELEM *temp, int width)
Definition: snow_dwt.h:58
GLuint buffer
Definition: opengl_enc.c:102
static int16_t block[64]
Definition: dct-test.c:112