FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
snow_dwt.h
Go to the documentation of this file.
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 
28 
29 typedef int DWTELEM;
30 typedef short IDWTELEM;
31 
32 #define MAX_DECOMPOSITIONS 8
33 
34 typedef struct DWTCompose {
39  int y;
40 } DWTCompose;
41 
42 /** Used to minimize the amount of memory used in order to
43  * optimize cache performance. **/
44 typedef struct slice_buffer_s {
45  IDWTELEM **line; ///< For use by idwt and predict_slices.
46  IDWTELEM **data_stack; ///< Used for internal purposes.
51  IDWTELEM *base_buffer; ///< Buffer that this structure is caching.
52 } slice_buffer;
53 
54 struct SnowDWTContext;
55 
56 typedef struct SnowDWTContext {
58  IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
59  int width);
61  void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride,
62  uint8_t **block, int b_w, int b_h, int src_x,
63  int src_y, int src_stride, slice_buffer *sb,
64  int add, uint8_t *dst8);
66 
67 
68 #define DWT_97 0
69 #define DWT_53 1
70 
71 #define liftS lift
72 #define W_AM 3
73 #define W_AO 0
74 #define W_AS 1
75 
76 #undef liftS
77 #define W_BM 1
78 #define W_BO 8
79 #define W_BS 4
80 
81 #define W_CM 1
82 #define W_CO 0
83 #define W_CS 0
84 
85 #define W_DM 3
86 #define W_DO 4
87 #define W_DS 3
88 
89 #define slice_buffer_get_line(slice_buf, line_num) \
90  ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] \
91  : ff_slice_buffer_load_line((slice_buf), \
92  (line_num)))
93 
94 int ff_slice_buffer_init(slice_buffer *buf, int line_count,
95  int max_allocated_lines, int line_width,
96  IDWTELEM *base_buffer);
101 
103  IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
104  int width);
106 void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride,
107  uint8_t **block, int b_w, int b_h, int src_x,
108  int src_y, int src_stride, slice_buffer *sb,
109  int add, uint8_t *dst8);
110 
111 int ff_w53_32_c(struct MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t line_size, int h);
112 int ff_w97_32_c(struct MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t line_size, int h);
113 
114 void ff_spatial_dwt(int *buffer, int *temp, int width, int height, int stride,
115  int type, int decomposition_count);
116 
118  int height, int stride_line, int type,
119  int decomposition_count);
121  slice_buffer *slice_buf, IDWTELEM *temp,
122  int width, int height, int stride_line,
123  int type, int decomposition_count, int y);
125  int stride, int type, int decomposition_count);
126 
129 
130 #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:256
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:61
short IDWTELEM
Definition: dirac_dwt.h:27
static int16_t block[64]
Definition: dct.c:115
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:57
#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:47
int data_count
Definition: snow_dwt.h:50
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:48
IDWTELEM * b0
Definition: snow_dwt.h:35
Definition: graph2dot.c:48
uint16_t width
Definition: gdv.c:47
IDWTELEM * b3
Definition: snow_dwt.h:38
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
IDWTELEM * base_buffer
Buffer that this structure is caching.
Definition: snow_dwt.h:51
void ff_slice_buffer_release(slice_buffer *buf, int line)
Definition: snow_dwt.c:78
void * buf
Definition: avisynth_c.h:690
GLint GLenum type
Definition: opengl_enc.c:105
short IDWTELEM
Definition: snow_dwt.h:30
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:36
MpegEncContext.
Definition: mpegvideo.h:78
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
IDWTELEM * b2
Definition: snow_dwt.h:37
int line_width
Definition: snow_dwt.h:49
IDWTELEM ** line
For use by idwt and predict_slices.
Definition: snow_dwt.h:45
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:46
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:44
void(* horizontal_compose97i)(IDWTELEM *b, IDWTELEM *temp, int width)
Definition: snow_dwt.h:60
GLuint buffer
Definition: opengl_enc.c:102