e92918967292876174aa69c064b2ddb5aa0b296d
2 * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
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.
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.
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
21 #ifndef AVCODEC_SNOW_DWT_H
22 #define AVCODEC_SNOW_DWT_H
27 typedef short IDWTELEM
;
29 #define MAX_DECOMPOSITIONS 8
31 typedef struct DWTCompose
{
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.
48 IDWTELEM
*base_buffer
; ///< Buffer that this structure is caching.
51 struct SnowDWTContext
;
53 typedef struct SnowDWTContext
{
54 void (*vertical_compose97i
)(IDWTELEM
*b0
, IDWTELEM
*b1
, IDWTELEM
*b2
,
55 IDWTELEM
*b3
, IDWTELEM
*b4
, IDWTELEM
*b5
,
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
);
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), \
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
);
99 void ff_snow_vertical_compose97i(IDWTELEM
*b0
, IDWTELEM
*b1
, IDWTELEM
*b2
,
100 IDWTELEM
*b3
, IDWTELEM
*b4
, IDWTELEM
*b5
,
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
);
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
);
111 void ff_spatial_dwt(int *buffer
, int *temp
, int width
, int height
, int stride
,
112 int type
, int decomposition_count
);
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
);
124 void ff_dwt_init(SnowDWTContext
*c
);
125 void ff_dwt_init_x86(SnowDWTContext
*c
);
127 #endif /* AVCODEC_DWT_H */