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[libav.git] / libavcodec / snow.c
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791e7b83
MN		 1/*
2 * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19#include "avcodec.h"
20#include "common.h"
21#include "dsputil.h"
22#include "cabac.h"
23
24#include "mpegvideo.h"
25
26#undef NDEBUG
27#include <assert.h>
28
29#define MAX_DECOMPOSITIONS 8
30#define MAX_PLANES 4
31#define DWTELEM int
32#define QROOT 8
93fbdb5a 33#define LOSSLESS_QLOG -128
791e7b83
MN		 34
35static const int8_t quant3[256]={
36 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
37 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
38 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
39 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
40 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
41 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
42 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
43 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
44-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
45-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
46-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
47-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
48-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
49-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
50-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
51-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, 0,
52};
53static const int8_t quant3b[256]={
54 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
55 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
56 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
57 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
58 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
59 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
60 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
61 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
62-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
63-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
64-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
65-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
66-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
67-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
68-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
69-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
70};
71static const int8_t quant5[256]={
72 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
73 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
74 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
75 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
76 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
77 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
78 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
79 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
80-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
81-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
82-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
83-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
84-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
85-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
86-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
87-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,-1,
88};
89static const int8_t quant7[256]={
90 0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
91 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
92 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
93 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
94 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
95 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
96 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
97 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
98-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
99-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
100-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
101-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
102-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
103-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-2,-2,-2,
104-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
105-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,
106};
107static const int8_t quant9[256]={
108 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3,
109 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
110 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
111 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
112 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
113 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
114 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
115 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
116-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
117-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
118-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
119-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
120-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
121-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
122-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,
123-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-1,-1,
124};
125static const int8_t quant11[256]={
126 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4,
127 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
128 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
129 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
130 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
131 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
132 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
133 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
134-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
135-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
136-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
137-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
138-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
139-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-4,-4,
140-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
141-4,-4,-4,-4,-4,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-1,
142};
143static const int8_t quant13[256]={
144 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
145 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
146 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
147 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
148 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
149 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
150 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
151 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
152-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
153-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
154-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
155-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
156-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-5,
157-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
158-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
159-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,-2,-2,-1,
160};
161
162#define OBMC_MAX 64
163#if 0 //64*cubic
164static const uint8_t obmc32[1024]={
165 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
166 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
167 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0,
168 0, 0, 1, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 4, 3, 2, 2, 1, 1, 0, 0,
169 0, 0, 1, 2, 2, 3, 4, 6, 7, 8, 9,10,11,12,12,12,12,12,12,11,10, 9, 8, 7, 6, 4, 3, 2, 2, 1, 0, 0,
170 0, 1, 1, 2, 3, 5, 6, 8,10,11,13,14,15,16,17,18,18,17,16,15,14,13,11,10, 8, 6, 5, 3, 2, 1, 1, 0,
171 0, 1, 1, 3, 4, 6, 8,10,13,15,17,19,20,22,22,23,23,22,22,20,19,17,15,13,10, 8, 6, 4, 3, 1, 1, 0,
172 0, 1, 2, 4, 6, 8,10,13,16,19,21,23,25,27,28,29,29,28,27,25,23,21,19,16,13,10, 8, 6, 4, 2, 1, 0,
173 0, 1, 2, 4, 7,10,13,16,19,22,25,28,31,33,34,35,35,34,33,31,28,25,22,19,16,13,10, 7, 4, 2, 1, 0,
174 0, 1, 3, 5, 8,11,15,19,22,26,30,33,36,38,40,41,41,40,38,36,33,30,26,22,19,15,11, 8, 5, 3, 1, 0,
175 0, 1, 3, 6, 9,12,17,21,25,30,34,38,41,44,45,46,46,45,44,41,38,34,30,25,21,17,12, 9, 6, 3, 1, 0,
176 0, 1, 3, 6,10,14,19,23,28,33,38,42,45,48,51,52,52,51,48,45,42,38,33,28,23,19,14,10, 6, 3, 1, 0,
177 0, 1, 4, 7,11,15,20,25,31,36,41,45,49,52,55,56,56,55,52,49,45,41,36,31,25,20,15,11, 7, 4, 1, 0,
178 0, 2, 4, 7,12,16,22,27,33,38,44,48,52,56,58,60,60,58,56,52,48,44,38,33,27,22,16,12, 7, 4, 2, 0,
179 0, 1, 4, 8,12,17,22,28,34,40,45,51,55,58,61,62,62,61,58,55,51,45,40,34,28,22,17,12, 8, 4, 1, 0,
180 0, 2, 4, 8,12,18,23,29,35,41,46,52,56,60,62,64,64,62,60,56,52,46,41,35,29,23,18,12, 8, 4, 2, 0,
181 0, 2, 4, 8,12,18,23,29,35,41,46,52,56,60,62,64,64,62,60,56,52,46,41,35,29,23,18,12, 8, 4, 2, 0,
182 0, 1, 4, 8,12,17,22,28,34,40,45,51,55,58,61,62,62,61,58,55,51,45,40,34,28,22,17,12, 8, 4, 1, 0,
183 0, 2, 4, 7,12,16,22,27,33,38,44,48,52,56,58,60,60,58,56,52,48,44,38,33,27,22,16,12, 7, 4, 2, 0,
184 0, 1, 4, 7,11,15,20,25,31,36,41,45,49,52,55,56,56,55,52,49,45,41,36,31,25,20,15,11, 7, 4, 1, 0,
185 0, 1, 3, 6,10,14,19,23,28,33,38,42,45,48,51,52,52,51,48,45,42,38,33,28,23,19,14,10, 6, 3, 1, 0,
186 0, 1, 3, 6, 9,12,17,21,25,30,34,38,41,44,45,46,46,45,44,41,38,34,30,25,21,17,12, 9, 6, 3, 1, 0,
187 0, 1, 3, 5, 8,11,15,19,22,26,30,33,36,38,40,41,41,40,38,36,33,30,26,22,19,15,11, 8, 5, 3, 1, 0,
188 0, 1, 2, 4, 7,10,13,16,19,22,25,28,31,33,34,35,35,34,33,31,28,25,22,19,16,13,10, 7, 4, 2, 1, 0,
189 0, 1, 2, 4, 6, 8,10,13,16,19,21,23,25,27,28,29,29,28,27,25,23,21,19,16,13,10, 8, 6, 4, 2, 1, 0,
190 0, 1, 1, 3, 4, 6, 8,10,13,15,17,19,20,22,22,23,23,22,22,20,19,17,15,13,10, 8, 6, 4, 3, 1, 1, 0,
191 0, 1, 1, 2, 3, 5, 6, 8,10,11,13,14,15,16,17,18,18,17,16,15,14,13,11,10, 8, 6, 5, 3, 2, 1, 1, 0,
192 0, 0, 1, 2, 2, 3, 4, 6, 7, 8, 9,10,11,12,12,12,12,12,12,11,10, 9, 8, 7, 6, 4, 3, 2, 2, 1, 0, 0,
193 0, 0, 1, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 4, 3, 2, 2, 1, 1, 0, 0,
194 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0,
195 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
196 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
197//error:0.000022
198};
199static const uint8_t obmc16[256]={
200 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
201 0, 1, 1, 2, 4, 5, 5, 6, 6, 5, 5, 4, 2, 1, 1, 0,
202 0, 1, 4, 6, 9,11,13,15,15,13,11, 9, 6, 4, 1, 0,
203 0, 2, 6,11,15,20,24,26,26,24,20,15,11, 6, 2, 0,
204 0, 4, 9,15,23,29,34,38,38,34,29,23,15, 9, 4, 0,
205 0, 5,11,20,29,38,45,49,49,45,38,29,20,11, 5, 0,
206 1, 5,13,24,34,45,53,57,57,53,45,34,24,13, 5, 1,
207 1, 6,15,26,38,49,57,62,62,57,49,38,26,15, 6, 1,
208 1, 6,15,26,38,49,57,62,62,57,49,38,26,15, 6, 1,
209 1, 5,13,24,34,45,53,57,57,53,45,34,24,13, 5, 1,
210 0, 5,11,20,29,38,45,49,49,45,38,29,20,11, 5, 0,
211 0, 4, 9,15,23,29,34,38,38,34,29,23,15, 9, 4, 0,
212 0, 2, 6,11,15,20,24,26,26,24,20,15,11, 6, 2, 0,
213 0, 1, 4, 6, 9,11,13,15,15,13,11, 9, 6, 4, 1, 0,
214 0, 1, 1, 2, 4, 5, 5, 6, 6, 5, 5, 4, 2, 1, 1, 0,
215 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
216//error:0.000033
217};
218#elif 1 // 64*linear
219static const uint8_t obmc32[1024]={
220 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0,
221 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 0,
222 0, 1, 2, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 8, 9,10,10, 9, 8, 8, 7, 7, 6, 5, 5, 4, 3, 3, 2, 2, 1, 0,
223 0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9,10,11,12,13,14,14,13,12,11,10, 9, 8, 7, 7, 6, 5, 4, 3, 2, 1, 0,
224 1, 2, 3, 4, 5, 6, 7, 8,10,11,12,13,14,15,16,17,17,16,15,14,13,12,11,10, 8, 7, 6, 5, 4, 3, 2, 1,
225 1, 2, 3, 5, 6, 8, 9,10,12,13,14,16,17,19,20,21,21,20,19,17,16,14,13,12,10, 9, 8, 6, 5, 3, 2, 1,
226 1, 2, 4, 6, 7, 9,11,12,14,15,17,19,20,22,24,25,25,24,22,20,19,17,15,14,12,11, 9, 7, 6, 4, 2, 1,
227 1, 3, 5, 7, 8,10,12,14,16,18,20,22,23,25,27,29,29,27,25,23,22,20,18,16,14,12,10, 8, 7, 5, 3, 1,
228 1, 3, 5, 7,10,12,14,16,18,20,22,24,27,29,31,33,33,31,29,27,24,22,20,18,16,14,12,10, 7, 5, 3, 1,
229 1, 4, 6, 8,11,13,15,18,20,23,25,27,30,32,34,37,37,34,32,30,27,25,23,20,18,15,13,11, 8, 6, 4, 1,
230 1, 4, 7, 9,12,14,17,20,22,25,28,30,33,35,38,41,41,38,35,33,30,28,25,22,20,17,14,12, 9, 7, 4, 1,
231 1, 4, 7,10,13,16,19,22,24,27,30,33,36,39,42,45,45,42,39,36,33,30,27,24,22,19,16,13,10, 7, 4, 1,
232 2, 5, 8,11,14,17,20,23,27,30,33,36,39,42,45,48,48,45,42,39,36,33,30,27,23,20,17,14,11, 8, 5, 2,
233 2, 5, 8,12,15,19,22,25,29,32,35,39,42,46,49,52,52,49,46,42,39,35,32,29,25,22,19,15,12, 8, 5, 2,
234 2, 5, 9,13,16,20,24,27,31,34,38,42,45,49,53,56,56,53,49,45,42,38,34,31,27,24,20,16,13, 9, 5, 2,
235 2, 6,10,14,17,21,25,29,33,37,41,45,48,52,56,60,60,56,52,48,45,41,37,33,29,25,21,17,14,10, 6, 2,
236 2, 6,10,14,17,21,25,29,33,37,41,45,48,52,56,60,60,56,52,48,45,41,37,33,29,25,21,17,14,10, 6, 2,
237 2, 5, 9,13,16,20,24,27,31,34,38,42,45,49,53,56,56,53,49,45,42,38,34,31,27,24,20,16,13, 9, 5, 2,
238 2, 5, 8,12,15,19,22,25,29,32,35,39,42,46,49,52,52,49,46,42,39,35,32,29,25,22,19,15,12, 8, 5, 2,
239 2, 5, 8,11,14,17,20,23,27,30,33,36,39,42,45,48,48,45,42,39,36,33,30,27,23,20,17,14,11, 8, 5, 2,
240 1, 4, 7,10,13,16,19,22,24,27,30,33,36,39,42,45,45,42,39,36,33,30,27,24,22,19,16,13,10, 7, 4, 1,
241 1, 4, 7, 9,12,14,17,20,22,25,28,30,33,35,38,41,41,38,35,33,30,28,25,22,20,17,14,12, 9, 7, 4, 1,
242 1, 4, 6, 8,11,13,15,18,20,23,25,27,30,32,34,37,37,34,32,30,27,25,23,20,18,15,13,11, 8, 6, 4, 1,
243 1, 3, 5, 7,10,12,14,16,18,20,22,24,27,29,31,33,33,31,29,27,24,22,20,18,16,14,12,10, 7, 5, 3, 1,
244 1, 3, 5, 7, 8,10,12,14,16,18,20,22,23,25,27,29,29,27,25,23,22,20,18,16,14,12,10, 8, 7, 5, 3, 1,
245 1, 2, 4, 6, 7, 9,11,12,14,15,17,19,20,22,24,25,25,24,22,20,19,17,15,14,12,11, 9, 7, 6, 4, 2, 1,
246 1, 2, 3, 5, 6, 8, 9,10,12,13,14,16,17,19,20,21,21,20,19,17,16,14,13,12,10, 9, 8, 6, 5, 3, 2, 1,
247 1, 2, 3, 4, 5, 6, 7, 8,10,11,12,13,14,15,16,17,17,16,15,14,13,12,11,10, 8, 7, 6, 5, 4, 3, 2, 1,
248 0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9,10,11,12,13,14,14,13,12,11,10, 9, 8, 7, 7, 6, 5, 4, 3, 2, 1, 0,
249 0, 1, 2, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 8, 9,10,10, 9, 8, 8, 7, 7, 6, 5, 5, 4, 3, 3, 2, 2, 1, 0,
250 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 0,
251 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0,
252 //error:0.000020
253};
254static const uint8_t obmc16[256]={
255 0, 1, 1, 2, 2, 3, 3, 4, 4, 3, 3, 2, 2, 1, 1, 0,
256 1, 2, 4, 5, 7, 8,10,11,11,10, 8, 7, 5, 4, 2, 1,
257 1, 4, 6, 9,11,14,16,19,19,16,14,11, 9, 6, 4, 1,
258 2, 5, 9,12,16,19,23,26,26,23,19,16,12, 9, 5, 2,
259 2, 7,11,16,20,25,29,34,34,29,25,20,16,11, 7, 2,
260 3, 8,14,19,25,30,36,41,41,36,30,25,19,14, 8, 3,
261 3,10,16,23,29,36,42,49,49,42,36,29,23,16,10, 3,
262 4,11,19,26,34,41,49,56,56,49,41,34,26,19,11, 4,
263 4,11,19,26,34,41,49,56,56,49,41,34,26,19,11, 4,
264 3,10,16,23,29,36,42,49,49,42,36,29,23,16,10, 3,
265 3, 8,14,19,25,30,36,41,41,36,30,25,19,14, 8, 3,
266 2, 7,11,16,20,25,29,34,34,29,25,20,16,11, 7, 2,
267 2, 5, 9,12,16,19,23,26,26,23,19,16,12, 9, 5, 2,
268 1, 4, 6, 9,11,14,16,19,19,16,14,11, 9, 6, 4, 1,
269 1, 2, 4, 5, 7, 8,10,11,11,10, 8, 7, 5, 4, 2, 1,
270 0, 1, 1, 2, 2, 3, 3, 4, 4, 3, 3, 2, 2, 1, 1, 0,
271//error:0.000015
272};
273#else //64*cos
274static const uint8_t obmc32[1024]={
275 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
276 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
277 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0,
278 0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0,
279 0, 0, 1, 1, 2, 3, 4, 5, 6, 7, 9,10,11,11,12,12,12,12,11,11,10, 9, 7, 6, 5, 4, 3, 2, 1, 1, 0, 0,
280 0, 0, 1, 2, 3, 5, 6, 8, 9,11,12,14,15,16,17,17,17,17,16,15,14,12,11, 9, 8, 6, 5, 3, 2, 1, 0, 0,
281 0, 1, 1, 2, 4, 6, 8,10,12,15,17,19,20,21,22,23,23,22,21,20,19,17,15,12,10, 8, 6, 4, 2, 1, 1, 0,
282 0, 1, 2, 3, 5, 8,10,13,16,19,21,24,26,27,28,29,29,28,27,26,24,21,19,16,13,10, 8, 5, 3, 2, 1, 0,
283 0, 1, 2, 4, 6, 9,12,16,19,23,26,29,31,33,34,35,35,34,33,31,29,26,23,19,16,12, 9, 6, 4, 2, 1, 0,
284 0, 1, 3, 5, 7,11,15,19,23,26,30,34,37,39,40,41,41,40,39,37,34,30,26,23,19,15,11, 7, 5, 3, 1, 0,
285 0, 1, 3, 5, 9,12,17,21,26,30,35,38,42,44,46,47,47,46,44,42,38,35,30,26,21,17,12, 9, 5, 3, 1, 0,
286 0, 1, 3, 6, 9,14,19,24,29,34,38,43,46,49,51,52,52,51,49,46,43,38,34,29,24,19,14, 9, 6, 3, 1, 0,
287 0, 1, 3, 6,11,15,20,26,31,37,42,46,50,53,56,57,57,56,53,50,46,42,37,31,26,20,15,11, 6, 3, 1, 0,
288 0, 1, 3, 7,11,16,21,27,33,39,44,49,53,57,59,60,60,59,57,53,49,44,39,33,27,21,16,11, 7, 3, 1, 0,
289 0, 1, 4, 7,12,17,22,28,34,40,46,51,56,59,61,63,63,61,59,56,51,46,40,34,28,22,17,12, 7, 4, 1, 0,
290 0, 1, 4, 7,12,17,23,29,35,41,47,52,57,60,63,64,64,63,60,57,52,47,41,35,29,23,17,12, 7, 4, 1, 0,
291 0, 1, 4, 7,12,17,23,29,35,41,47,52,57,60,63,64,64,63,60,57,52,47,41,35,29,23,17,12, 7, 4, 1, 0,
292 0, 1, 4, 7,12,17,22,28,34,40,46,51,56,59,61,63,63,61,59,56,51,46,40,34,28,22,17,12, 7, 4, 1, 0,
293 0, 1, 3, 7,11,16,21,27,33,39,44,49,53,57,59,60,60,59,57,53,49,44,39,33,27,21,16,11, 7, 3, 1, 0,
294 0, 1, 3, 6,11,15,20,26,31,37,42,46,50,53,56,57,57,56,53,50,46,42,37,31,26,20,15,11, 6, 3, 1, 0,
295 0, 1, 3, 6, 9,14,19,24,29,34,38,43,46,49,51,52,52,51,49,46,43,38,34,29,24,19,14, 9, 6, 3, 1, 0,
296 0, 1, 3, 5, 9,12,17,21,26,30,35,38,42,44,46,47,47,46,44,42,38,35,30,26,21,17,12, 9, 5, 3, 1, 0,
297 0, 1, 3, 5, 7,11,15,19,23,26,30,34,37,39,40,41,41,40,39,37,34,30,26,23,19,15,11, 7, 5, 3, 1, 0,
298 0, 1, 2, 4, 6, 9,12,16,19,23,26,29,31,33,34,35,35,34,33,31,29,26,23,19,16,12, 9, 6, 4, 2, 1, 0,
299 0, 1, 2, 3, 5, 8,10,13,16,19,21,24,26,27,28,29,29,28,27,26,24,21,19,16,13,10, 8, 5, 3, 2, 1, 0,
300 0, 1, 1, 2, 4, 6, 8,10,12,15,17,19,20,21,22,23,23,22,21,20,19,17,15,12,10, 8, 6, 4, 2, 1, 1, 0,
301 0, 0, 1, 2, 3, 5, 6, 8, 9,11,12,14,15,16,17,17,17,17,16,15,14,12,11, 9, 8, 6, 5, 3, 2, 1, 0, 0,
302 0, 0, 1, 1, 2, 3, 4, 5, 6, 7, 9,10,11,11,12,12,12,12,11,11,10, 9, 7, 6, 5, 4, 3, 2, 1, 1, 0, 0,
303 0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0,
304 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0,
305 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
306 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
307//error:0.000022
308};
309static const uint8_t obmc16[256]={
310 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
311 0, 0, 1, 2, 3, 4, 5, 5, 5, 5, 4, 3, 2, 1, 0, 0,
312 0, 1, 3, 6, 8,11,13,14,14,13,11, 8, 6, 3, 1, 0,
313 0, 2, 6,10,15,20,24,26,26,24,20,15,10, 6, 2, 0,
314 0, 3, 8,16,23,30,35,38,38,35,30,23,16, 8, 3, 0,
315 1, 4,11,20,30,39,46,49,49,46,39,30,20,11, 4, 1,
316 1, 5,13,24,35,46,54,58,58,54,46,35,24,13, 5, 1,
317 0, 5,14,26,38,49,58,63,63,58,49,38,26,14, 5, 0,
318 0, 5,14,26,38,49,58,63,63,58,49,38,26,14, 5, 0,
319 1, 5,13,24,35,46,54,58,58,54,46,35,24,13, 5, 1,
320 1, 4,11,20,30,39,46,49,49,46,39,30,20,11, 4, 1,
321 0, 3, 8,16,23,30,35,38,38,35,30,23,16, 8, 3, 0,
322 0, 2, 6,10,15,20,24,26,26,24,20,15,10, 6, 2, 0,
323 0, 1, 3, 6, 8,11,13,14,14,13,11, 8, 6, 3, 1, 0,
324 0, 0, 1, 2, 3, 4, 5, 5, 5, 5, 4, 3, 2, 1, 0, 0,
325 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
326//error:0.000022
327};
328#endif
329
155ec6ed
MN		 330//linear *64
331static const uint8_t obmc8[64]={
332 1, 3, 5, 7, 7, 5, 3, 1,
333 3, 9,15,21,21,15, 9, 3,
334 5,15,25,35,35,25,15, 5,
335 7,21,35,49,49,35,21, 7,
336 7,21,35,49,49,35,21, 7,
337 5,15,25,35,35,25,15, 5,
338 3, 9,15,21,21,15, 9, 3,
339 1, 3, 5, 7, 7, 5, 3, 1,
340//error:0.000000
341};
342
343//linear *64
344static const uint8_t obmc4[16]={
345 4,12,12, 4,
34612,36,36,12,
34712,36,36,12,
348 4,12,12, 4,
349//error:0.000000
350};
351
352static const uint8_t *obmc_tab[4]={
353 obmc32, obmc16, obmc8, obmc4
354};
355
356typedef struct BlockNode{
357 int16_t mx;
358 int16_t my;
359 uint8_t color[3];
360 uint8_t type;
361//#define TYPE_SPLIT 1
362#define BLOCK_INTRA 1
363//#define TYPE_NOCOLOR 4
364 uint8_t level; //FIXME merge into type?
365}BlockNode;
366
367#define LOG2_MB_SIZE 4
368#define MB_SIZE (1<<LOG2_MB_SIZE)
369
791e7b83
MN		 370typedef struct SubBand{
371 int level;
372 int stride;
373 int width;
374 int height;
375 int qlog; ///< log(qscale)/log[2^(1/6)]
376 DWTELEM *buf;
7b49c309 377 int16_t *x;
0cea8a03 378 DWTELEM *coeff;
791e7b83
MN		 379 struct SubBand *parent;
380 uint8_t state[/*7*2*/ 7 + 512][32];
381}SubBand;
382
383typedef struct Plane{
384 int width;
385 int height;
386 SubBand band[MAX_DECOMPOSITIONS][4];
387}Plane;
388
389typedef struct SnowContext{
390// MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independant of MpegEncContext, so this will be removed then (FIXME/XXX)
391
392 AVCodecContext *avctx;
393 CABACContext c;
394 DSPContext dsp;
395 AVFrame input_picture;
396 AVFrame current_picture;
397 AVFrame last_picture;
398 AVFrame mconly_picture;
399// uint8_t q_context[16];
400 uint8_t header_state[32];
155ec6ed 401 uint8_t block_state[128 + 32*128];
791e7b83 402 int keyframe;
19aa028d 403 int always_reset;
791e7b83
MN		 404 int version;
405 int spatial_decomposition_type;
406 int temporal_decomposition_type;
407 int spatial_decomposition_count;
408 int temporal_decomposition_count;
409 DWTELEM *spatial_dwt_buffer;
410 DWTELEM *pred_buffer;
411 int colorspace_type;
412 int chroma_h_shift;
413 int chroma_v_shift;
414 int spatial_scalability;
415 int qlog;
155ec6ed
MN		 416 int lambda;
417 int lambda2;
791e7b83
MN		 418 int mv_scale;
419 int qbias;
420#define QBIAS_SHIFT 3
155ec6ed
MN		 421 int b_width;
422 int b_height;
423 int block_max_depth;
791e7b83 424 Plane plane[MAX_PLANES];
155ec6ed
MN		 425 BlockNode *block;
426
791e7b83
MN		 427 MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independant of MpegEncContext, so this will be removed then (FIXME/XXX)
428}SnowContext;
429
430#define QEXPSHIFT 7 //FIXME try to change this to 0
431static const uint8_t qexp[8]={
432 128, 140, 152, 166, 181, 197, 215, 235
433// 64, 70, 76, 83, 91, 99, 108, 117
434// 32, 35, 38, 41, 45, 49, 54, 59
435// 16, 17, 19, 21, 23, 25, 27, 29
436// 8, 9, 10, 10, 11, 12, 13, 15
437};
438
439static inline int mirror(int v, int m){
440 if (v<0) return -v;
441 else if(v>m) return 2*m-v;
442 else return v;
443}
444
445static inline void put_symbol(CABACContext *c, uint8_t *state, int v, int is_signed){
446 int i;
447
448 if(v){
449 const int a= ABS(v);
450 const int e= av_log2(a);
451#if 1
452 const int el= FFMIN(e, 10);
453 put_cabac(c, state+0, 0);
454
455 for(i=0; i<el; i++){
456 put_cabac(c, state+1+i, 1); //1..10
457 }
458 for(; i<e; i++){
459 put_cabac(c, state+1+9, 1); //1..10
460 }
461 put_cabac(c, state+1+FFMIN(i,9), 0);
462
463 for(i=e-1; i>=el; i--){
464 put_cabac(c, state+22+9, (a>>i)&1); //22..31
465 }
466 for(; i>=0; i--){
467 put_cabac(c, state+22+i, (a>>i)&1); //22..31
468 }
469
470 if(is_signed)
471 put_cabac(c, state+11 + el, v < 0); //11..21
472#else
473
474 put_cabac(c, state+0, 0);
475 if(e<=9){
476 for(i=0; i<e; i++){
477 put_cabac(c, state+1+i, 1); //1..10
478 }
479 put_cabac(c, state+1+i, 0);
480
481 for(i=e-1; i>=0; i--){
482 put_cabac(c, state+22+i, (a>>i)&1); //22..31
483 }
484
485 if(is_signed)
486 put_cabac(c, state+11 + e, v < 0); //11..21
487 }else{
488 for(i=0; i<e; i++){
489 put_cabac(c, state+1+FFMIN(i,9), 1); //1..10
490 }
491 put_cabac(c, state+1+FFMIN(i,9), 0);
492
493 for(i=e-1; i>=0; i--){
494 put_cabac(c, state+22+FFMIN(i,9), (a>>i)&1); //22..31
495 }
496
497 if(is_signed)
498 put_cabac(c, state+11 + FFMIN(e,10), v < 0); //11..21
499 }
500#endif
501 }else{
502 put_cabac(c, state+0, 1);
503 }
504}
505
506static inline int get_symbol(CABACContext *c, uint8_t *state, int is_signed){
507 if(get_cabac(c, state+0))
508 return 0;
509 else{
510 int i, e, a, el;
511 //FIXME try to merge loops with FFMIN() maybe they are equally fast and they are surly cuter
512 for(e=0; e<10; e++){
513 if(get_cabac(c, state + 1 + e)==0) // 1..10
514 break;
515 }
516 el= e;
517
518 if(e==10){
519 while(get_cabac(c, state + 1 + 9)) //10
520 e++;
521 }
522 a= 1;
523 for(i=e-1; i>=el; i--){
524 a += a + get_cabac(c, state+22+9); //31
525 }
526 for(; i>=0; i--){
527 a += a + get_cabac(c, state+22+i); //22..31
528 }
529
530 if(is_signed && get_cabac(c, state+11 + el)) //11..21
531 return -a;
532 else
533 return a;
534 }
535}
536
4f4e9633
MN		 537static inline void put_symbol2(CABACContext *c, uint8_t *state, int v, int log2){
538 int i;
0635cbfc 539 int r= log2>=0 ? 1<<log2 : 1;
4f4e9633
MN		 540
541 assert(v>=0);
0635cbfc
MN		 542 assert(log2>=-4);
543
544 while(v >= r){
545 put_cabac(c, state+4+log2, 1);
546 v -= r;
4f4e9633 547 log2++;
0635cbfc 548 if(log2>0) r+=r;
4f4e9633 549 }
0635cbfc 550 put_cabac(c, state+4+log2, 0);
4f4e9633
MN		 551
552 for(i=log2-1; i>=0; i--){
553 put_cabac(c, state+31-i, (v>>i)&1);
554 }
4f4e9633
MN		 555}
556
557static inline int get_symbol2(CABACContext *c, uint8_t *state, int log2){
558 int i;
0635cbfc 559 int r= log2>=0 ? 1<<log2 : 1;
4f4e9633
MN		 560 int v=0;
561
0635cbfc
MN		 562 assert(log2>=-4);
563
564 while(get_cabac(c, state+4+log2)){
565 v+= r;
4f4e9633 566 log2++;
0635cbfc 567 if(log2>0) r+=r;
4f4e9633
MN		 568 }
569
570 for(i=log2-1; i>=0; i--){
571 v+= get_cabac(c, state+31-i)<<i;
572 }
573
574 return v;
575}
576
791e7b83
MN		 577static always_inline void lift(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse){
578 const int mirror_left= !highpass;
579 const int mirror_right= (width&1) ^ highpass;
580 const int w= (width>>1) - 1 + (highpass & width);
581 int i;
582
583#define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref)))
584 if(mirror_left){
585 dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse);
586 dst += dst_step;
587 src += src_step;
588 }
589
590 for(i=0; i<w; i++){
591 dst[i*dst_step] = LIFT(src[i*src_step], ((mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add)>>shift), inverse);
592 }
593
594 if(mirror_right){
595 dst[w*dst_step] = LIFT(src[w*src_step], ((mul*2*ref[w*ref_step]+add)>>shift), inverse);
596 }
597}
598
599static always_inline void lift5(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse){
600 const int mirror_left= !highpass;
601 const int mirror_right= (width&1) ^ highpass;
602 const int w= (width>>1) - 1 + (highpass & width);
603 int i;
604
605 if(mirror_left){
606 int r= 3*2*ref[0];
607 r += r>>4;
608 r += r>>8;
609 dst[0] = LIFT(src[0], ((r+add)>>shift), inverse);
610 dst += dst_step;
611 src += src_step;
612 }
613
614 for(i=0; i<w; i++){
615 int r= 3*(ref[i*ref_step] + ref[(i+1)*ref_step]);
616 r += r>>4;
617 r += r>>8;
618 dst[i*dst_step] = LIFT(src[i*src_step], ((r+add)>>shift), inverse);
619 }
620
621 if(mirror_right){
622 int r= 3*2*ref[w*ref_step];
623 r += r>>4;
624 r += r>>8;
625 dst[w*dst_step] = LIFT(src[w*src_step], ((r+add)>>shift), inverse);
626 }
627}
628
629
630static void inplace_lift(int *dst, int width, int *coeffs, int n, int shift, int start, int inverse){
631 int x, i;
632
633 for(x=start; x<width; x+=2){
634 int64_t sum=0;
635
636 for(i=0; i<n; i++){
637 int x2= x + 2*i - n + 1;
638 if (x2< 0) x2= -x2;
639 else if(x2>=width) x2= 2*width-x2-2;
640 sum += coeffs[i]*(int64_t)dst[x2];
641 }
642 if(inverse) dst[x] -= (sum + (1<<shift)/2)>>shift;
643 else dst[x] += (sum + (1<<shift)/2)>>shift;
644 }
645}
646
647static void inplace_liftV(int *dst, int width, int height, int stride, int *coeffs, int n, int shift, int start, int inverse){
648 int x, y, i;
649 for(y=start; y<height; y+=2){
650 for(x=0; x<width; x++){
651 int64_t sum=0;
652
653 for(i=0; i<n; i++){
654 int y2= y + 2*i - n + 1;
655 if (y2< 0) y2= -y2;
656 else if(y2>=height) y2= 2*height-y2-2;
657 sum += coeffs[i]*(int64_t)dst[x + y2*stride];
658 }
659 if(inverse) dst[x + y*stride] -= (sum + (1<<shift)/2)>>shift;
660 else dst[x + y*stride] += (sum + (1<<shift)/2)>>shift;
661 }
662 }
663}
664
665#define SCALEX 1
666#define LX0 0
667#define LX1 1
668
de890c9b 669#if 0 // more accurate 9/7
791e7b83
MN		 670#define N1 2
671#define SHIFT1 14
672#define COEFFS1 (int[]){-25987,-25987}
673#define N2 2
674#define SHIFT2 19
675#define COEFFS2 (int[]){-27777,-27777}
676#define N3 2
677#define SHIFT3 15
678#define COEFFS3 (int[]){28931,28931}
679#define N4 2
680#define SHIFT4 15
681#define COEFFS4 (int[]){14533,14533}
682#elif 1 // 13/7 CRF
683#define N1 4
684#define SHIFT1 4
685#define COEFFS1 (int[]){1,-9,-9,1}
de890c9b 686#define N2 4
791e7b83
MN		 687#define SHIFT2 4
688#define COEFFS2 (int[]){-1,5,5,-1}
689#define N3 0
690#define SHIFT3 1
691#define COEFFS3 NULL
692#define N4 0
693#define SHIFT4 1
694#define COEFFS4 NULL
695#elif 1 // 3/5
696#define LX0 1
697#define LX1 0
698#define SCALEX 0.5
699#define N1 2
700#define SHIFT1 1
701#define COEFFS1 (int[]){1,1}
702#define N2 2
703#define SHIFT2 2
704#define COEFFS2 (int[]){-1,-1}
705#define N3 0
706#define SHIFT3 0
707#define COEFFS3 NULL
708#define N4 0
709#define SHIFT4 0
710#define COEFFS4 NULL
711#elif 1 // 11/5
712#define N1 0
713#define SHIFT1 1
714#define COEFFS1 NULL
715#define N2 2
716#define SHIFT2 2
717#define COEFFS2 (int[]){-1,-1}
718#define N3 2
719#define SHIFT3 0
720#define COEFFS3 (int[]){-1,-1}
721#define N4 4
722#define SHIFT4 7
723#define COEFFS4 (int[]){-5,29,29,-5}
724#define SCALEX 4
725#elif 1 // 9/7 CDF
726#define N1 2
727#define SHIFT1 7
728#define COEFFS1 (int[]){-203,-203}
729#define N2 2
730#define SHIFT2 12
731#define COEFFS2 (int[]){-217,-217}
732#define N3 2
733#define SHIFT3 7
734#define COEFFS3 (int[]){113,113}
735#define N4 2
736#define SHIFT4 9
737#define COEFFS4 (int[]){227,227}
738#define SCALEX 1
739#elif 1 // 7/5 CDF
740#define N1 0
741#define SHIFT1 1
742#define COEFFS1 NULL
743#define N2 2
744#define SHIFT2 2
745#define COEFFS2 (int[]){-1,-1}
746#define N3 2
747#define SHIFT3 0
748#define COEFFS3 (int[]){-1,-1}
749#define N4 2
750#define SHIFT4 4
751#define COEFFS4 (int[]){3,3}
752#elif 1 // 9/7 MN
753#define N1 4
754#define SHIFT1 4
755#define COEFFS1 (int[]){1,-9,-9,1}
756#define N2 2
757#define SHIFT2 2
758#define COEFFS2 (int[]){1,1}
759#define N3 0
760#define SHIFT3 1
761#define COEFFS3 NULL
762#define N4 0
763#define SHIFT4 1
764#define COEFFS4 NULL
765#else // 13/7 CRF
766#define N1 4
767#define SHIFT1 4
768#define COEFFS1 (int[]){1,-9,-9,1}
769#define N2 4
770#define SHIFT2 4
771#define COEFFS2 (int[]){-1,5,5,-1}
772#define N3 0
773#define SHIFT3 1
774#define COEFFS3 NULL
775#define N4 0
776#define SHIFT4 1
777#define COEFFS4 NULL
778#endif
779static void horizontal_decomposeX(int *b, int width){
780 int temp[width];
781 const int width2= width>>1;
782 const int w2= (width+1)>>1;
783 int A1,A2,A3,A4, x;
784
785 inplace_lift(b, width, COEFFS1, N1, SHIFT1, LX1, 0);
786 inplace_lift(b, width, COEFFS2, N2, SHIFT2, LX0, 0);
787 inplace_lift(b, width, COEFFS3, N3, SHIFT3, LX1, 0);
788 inplace_lift(b, width, COEFFS4, N4, SHIFT4, LX0, 0);
789
790 for(x=0; x<width2; x++){
791 temp[x ]= b[2*x ];
792 temp[x+w2]= b[2*x + 1];
793 }
794 if(width&1)
795 temp[x ]= b[2*x ];
796 memcpy(b, temp, width*sizeof(int));
797}
798
799static void horizontal_composeX(int *b, int width){
800 int temp[width];
801 const int width2= width>>1;
802 int A1,A2,A3,A4, x;
803 const int w2= (width+1)>>1;
804
805 memcpy(temp, b, width*sizeof(int));
806 for(x=0; x<width2; x++){
807 b[2*x ]= temp[x ];
808 b[2*x + 1]= temp[x+w2];
809 }
810 if(width&1)
811 b[2*x ]= temp[x ];
812
813 inplace_lift(b, width, COEFFS4, N4, SHIFT4, LX0, 1);
814 inplace_lift(b, width, COEFFS3, N3, SHIFT3, LX1, 1);
815 inplace_lift(b, width, COEFFS2, N2, SHIFT2, LX0, 1);
816 inplace_lift(b, width, COEFFS1, N1, SHIFT1, LX1, 1);
817}
818
819static void spatial_decomposeX(int *buffer, int width, int height, int stride){
820 int x, y;
821
822 for(y=0; y<height; y++){
823 for(x=0; x<width; x++){
824 buffer[y*stride + x] *= SCALEX;
825 }
826 }
827
828 for(y=0; y<height; y++){
829 horizontal_decomposeX(buffer + y*stride, width);
830 }
831
832 inplace_liftV(buffer, width, height, stride, COEFFS1, N1, SHIFT1, LX1, 0);
833 inplace_liftV(buffer, width, height, stride, COEFFS2, N2, SHIFT2, LX0, 0);
834 inplace_liftV(buffer, width, height, stride, COEFFS3, N3, SHIFT3, LX1, 0);
835 inplace_liftV(buffer, width, height, stride, COEFFS4, N4, SHIFT4, LX0, 0);
836}
837
838static void spatial_composeX(int *buffer, int width, int height, int stride){
839 int x, y;
840
841 inplace_liftV(buffer, width, height, stride, COEFFS4, N4, SHIFT4, LX0, 1);
842 inplace_liftV(buffer, width, height, stride, COEFFS3, N3, SHIFT3, LX1, 1);
843 inplace_liftV(buffer, width, height, stride, COEFFS2, N2, SHIFT2, LX0, 1);
844 inplace_liftV(buffer, width, height, stride, COEFFS1, N1, SHIFT1, LX1, 1);
845
846 for(y=0; y<height; y++){
847 horizontal_composeX(buffer + y*stride, width);
848 }
849
850 for(y=0; y<height; y++){
851 for(x=0; x<width; x++){
852 buffer[y*stride + x] /= SCALEX;
853 }
854 }
855}
856
857static void horizontal_decompose53i(int *b, int width){
858 int temp[width];
859 const int width2= width>>1;
860 int A1,A2,A3,A4, x;
861 const int w2= (width+1)>>1;
862
863 for(x=0; x<width2; x++){
864 temp[x ]= b[2*x ];
865 temp[x+w2]= b[2*x + 1];
866 }
867 if(width&1)
868 temp[x ]= b[2*x ];
869#if 0
870 A2= temp[1 ];
871 A4= temp[0 ];
872 A1= temp[0+width2];
873 A1 -= (A2 + A4)>>1;
874 A4 += (A1 + 1)>>1;
875 b[0+width2] = A1;
876 b[0 ] = A4;
877 for(x=1; x+1<width2; x+=2){
878 A3= temp[x+width2];
879 A4= temp[x+1 ];
880 A3 -= (A2 + A4)>>1;
881 A2 += (A1 + A3 + 2)>>2;
882 b[x+width2] = A3;
883 b[x ] = A2;
884
885 A1= temp[x+1+width2];
886 A2= temp[x+2 ];
887 A1 -= (A2 + A4)>>1;
888 A4 += (A1 + A3 + 2)>>2;
889 b[x+1+width2] = A1;
890 b[x+1 ] = A4;
891 }
892 A3= temp[width-1];
893 A3 -= A2;
894 A2 += (A1 + A3 + 2)>>2;
895 b[width -1] = A3;
896 b[width2-1] = A2;
897#else
898 lift(b+w2, temp+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 0);
899 lift(b , temp , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 0);
900#endif
901}
902
903static void vertical_decompose53iH0(int *b0, int *b1, int *b2, int width){
904 int i;
905
906 for(i=0; i<width; i++){
907 b1[i] -= (b0[i] + b2[i])>>1;
908 }
909}
910
911static void vertical_decompose53iL0(int *b0, int *b1, int *b2, int width){
912 int i;
913
914 for(i=0; i<width; i++){
915 b1[i] += (b0[i] + b2[i] + 2)>>2;
916 }
917}
918
919static void spatial_decompose53i(int *buffer, int width, int height, int stride){
39c61bbb 920 int y;
791e7b83
MN		 921 DWTELEM *b0= buffer + mirror(-2-1, height-1)*stride;
922 DWTELEM *b1= buffer + mirror(-2 , height-1)*stride;
923
924 for(y=-2; y<height; y+=2){
925 DWTELEM *b2= buffer + mirror(y+1, height-1)*stride;
926 DWTELEM *b3= buffer + mirror(y+2, height-1)*stride;
927
928{START_TIMER
929 if(b1 <= b3) horizontal_decompose53i(b2, width);
930 if(y+2 < height) horizontal_decompose53i(b3, width);
931STOP_TIMER("horizontal_decompose53i")}
932
933{START_TIMER
934 if(b1 <= b3) vertical_decompose53iH0(b1, b2, b3, width);
935 if(b0 <= b2) vertical_decompose53iL0(b0, b1, b2, width);
936STOP_TIMER("vertical_decompose53i*")}
937
938 b0=b2;
939 b1=b3;
940 }
941}
942
943#define lift5 lift
944#if 1
945#define W_AM 3
946#define W_AO 0
947#define W_AS 1
948
949#define W_BM 1
950#define W_BO 8
951#define W_BS 4
952
953#undef lift5
954#define W_CM 9999
955#define W_CO 2
956#define W_CS 2
957
958#define W_DM 15
959#define W_DO 16
960#define W_DS 5
961#elif 0
962#define W_AM 55
963#define W_AO 16
964#define W_AS 5
965
966#define W_BM 3
967#define W_BO 32
968#define W_BS 6
969
970#define W_CM 127
971#define W_CO 64
972#define W_CS 7
973
974#define W_DM 7
975#define W_DO 8
976#define W_DS 4
977#elif 0
978#define W_AM 97
979#define W_AO 32
980#define W_AS 6
981
982#define W_BM 63
983#define W_BO 512
984#define W_BS 10
985
986#define W_CM 13
987#define W_CO 8
988#define W_CS 4
989
990#define W_DM 15
991#define W_DO 16
992#define W_DS 5
993
994#else
995
996#define W_AM 203
997#define W_AO 64
998#define W_AS 7
999
1000#define W_BM 217
1001#define W_BO 2048
1002#define W_BS 12
1003
1004#define W_CM 113
1005#define W_CO 64
1006#define W_CS 7
1007
1008#define W_DM 227
1009#define W_DO 128
1010#define W_DS 9
1011#endif
1012static void horizontal_decompose97i(int *b, int width){
1013 int temp[width];
1014 const int w2= (width+1)>>1;
1015
1016 lift (temp+w2, b +1, b , 1, 2, 2, width, -W_AM, W_AO, W_AS, 1, 0);
1017 lift (temp , b , temp+w2, 1, 2, 1, width, -W_BM, W_BO, W_BS, 0, 0);
1018 lift5(b +w2, temp+w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 0);
1019 lift (b , temp , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 0);
1020}
1021
1022
1023static void vertical_decompose97iH0(int *b0, int *b1, int *b2, int width){
1024 int i;
1025
1026 for(i=0; i<width; i++){
1027 b1[i] -= (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
1028 }
1029}
1030
1031static void vertical_decompose97iH1(int *b0, int *b1, int *b2, int width){
1032 int i;
1033
1034 for(i=0; i<width; i++){
1035#ifdef lift5
1036 b1[i] += (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS;
1037#else
1038 int r= 3*(b0[i] + b2[i]);
1039 r+= r>>4;
1040 r+= r>>8;
1041 b1[i] += (r+W_CO)>>W_CS;
1042#endif
1043 }
1044}
1045
1046static void vertical_decompose97iL0(int *b0, int *b1, int *b2, int width){
1047 int i;
1048
1049 for(i=0; i<width; i++){
1050 b1[i] -= (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS;
1051 }
1052}
1053
1054static void vertical_decompose97iL1(int *b0, int *b1, int *b2, int width){
1055 int i;
1056
1057 for(i=0; i<width; i++){
1058 b1[i] += (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS;
1059 }
1060}
1061
1062static void spatial_decompose97i(int *buffer, int width, int height, int stride){
39c61bbb 1063 int y;
791e7b83
MN		 1064 DWTELEM *b0= buffer + mirror(-4-1, height-1)*stride;
1065 DWTELEM *b1= buffer + mirror(-4 , height-1)*stride;
1066 DWTELEM *b2= buffer + mirror(-4+1, height-1)*stride;
1067 DWTELEM *b3= buffer + mirror(-4+2, height-1)*stride;
1068
1069 for(y=-4; y<height; y+=2){
1070 DWTELEM *b4= buffer + mirror(y+3, height-1)*stride;
1071 DWTELEM *b5= buffer + mirror(y+4, height-1)*stride;
1072
1073{START_TIMER
1074 if(b3 <= b5) horizontal_decompose97i(b4, width);
1075 if(y+4 < height) horizontal_decompose97i(b5, width);
1076if(width>400){
1077STOP_TIMER("horizontal_decompose97i")
1078}}
1079
1080{START_TIMER
1081 if(b3 <= b5) vertical_decompose97iH0(b3, b4, b5, width);
1082 if(b2 <= b4) vertical_decompose97iL0(b2, b3, b4, width);
1083 if(b1 <= b3) vertical_decompose97iH1(b1, b2, b3, width);
1084 if(b0 <= b2) vertical_decompose97iL1(b0, b1, b2, width);
1085
1086if(width>400){
1087STOP_TIMER("vertical_decompose97i")
1088}}
1089
1090 b0=b2;
1091 b1=b3;
1092 b2=b4;
1093 b3=b5;
1094 }
1095}
1096
46c281e8 1097void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count){
791e7b83
MN		 1098 int level;
1099
46c281e8
MN		 1100 for(level=0; level<decomposition_count; level++){
1101 switch(type){
791e7b83
MN		 1102 case 0: spatial_decompose97i(buffer, width>>level, height>>level, stride<<level); break;
1103 case 1: spatial_decompose53i(buffer, width>>level, height>>level, stride<<level); break;
1104 case 2: spatial_decomposeX (buffer, width>>level, height>>level, stride<<level); break;
1105 }
1106 }
1107}
1108
1109static void horizontal_compose53i(int *b, int width){
1110 int temp[width];
1111 const int width2= width>>1;
1112 const int w2= (width+1)>>1;
1113 int A1,A2,A3,A4, x;
1114
1115#if 0
1116 A2= temp[1 ];
1117 A4= temp[0 ];
1118 A1= temp[0+width2];
1119 A1 -= (A2 + A4)>>1;
1120 A4 += (A1 + 1)>>1;
1121 b[0+width2] = A1;
1122 b[0 ] = A4;
1123 for(x=1; x+1<width2; x+=2){
1124 A3= temp[x+width2];
1125 A4= temp[x+1 ];
1126 A3 -= (A2 + A4)>>1;
1127 A2 += (A1 + A3 + 2)>>2;
1128 b[x+width2] = A3;
1129 b[x ] = A2;
1130
1131 A1= temp[x+1+width2];
1132 A2= temp[x+2 ];
1133 A1 -= (A2 + A4)>>1;
1134 A4 += (A1 + A3 + 2)>>2;
1135 b[x+1+width2] = A1;
1136 b[x+1 ] = A4;
1137 }
1138 A3= temp[width-1];
1139 A3 -= A2;
1140 A2 += (A1 + A3 + 2)>>2;
1141 b[width -1] = A3;
1142 b[width2-1] = A2;
1143#else
1144 lift(temp , b , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 1);
1145 lift(temp+w2, b+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 1);
1146#endif
1147 for(x=0; x<width2; x++){
1148 b[2*x ]= temp[x ];
1149 b[2*x + 1]= temp[x+w2];
1150 }
1151 if(width&1)
1152 b[2*x ]= temp[x ];
1153}
1154
1155static void vertical_compose53iH0(int *b0, int *b1, int *b2, int width){
1156 int i;
1157
1158 for(i=0; i<width; i++){
1159 b1[i] += (b0[i] + b2[i])>>1;
1160 }
1161}
1162
1163static void vertical_compose53iL0(int *b0, int *b1, int *b2, int width){
1164 int i;
1165
1166 for(i=0; i<width; i++){
1167 b1[i] -= (b0[i] + b2[i] + 2)>>2;
1168 }
1169}
1170
1171static void spatial_compose53i(int *buffer, int width, int height, int stride){
39c61bbb 1172 int y;
791e7b83
MN		 1173 DWTELEM *b0= buffer + mirror(-1-1, height-1)*stride;
1174 DWTELEM *b1= buffer + mirror(-1 , height-1)*stride;
1175
1176 for(y=-1; y<=height; y+=2){
1177 DWTELEM *b2= buffer + mirror(y+1, height-1)*stride;
1178 DWTELEM *b3= buffer + mirror(y+2, height-1)*stride;
1179
1180{START_TIMER
1181 if(b1 <= b3) vertical_compose53iL0(b1, b2, b3, width);
1182 if(b0 <= b2) vertical_compose53iH0(b0, b1, b2, width);
1183STOP_TIMER("vertical_compose53i*")}
1184
1185{START_TIMER
1186 if(y-1 >= 0) horizontal_compose53i(b0, width);
1187 if(b0 <= b2) horizontal_compose53i(b1, width);
1188STOP_TIMER("horizontal_compose53i")}
1189
1190 b0=b2;
1191 b1=b3;
1192 }
1193}
1194
1195
1196static void horizontal_compose97i(int *b, int width){
1197 int temp[width];
1198 const int w2= (width+1)>>1;
1199
1200 lift (temp , b , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 1);
1201 lift5(temp+w2, b +w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 1);
1202 lift (b , temp , temp+w2, 2, 1, 1, width, -W_BM, W_BO, W_BS, 0, 1);
1203 lift (b+1 , temp+w2, b , 2, 1, 2, width, -W_AM, W_AO, W_AS, 1, 1);
1204}
1205
1206static void vertical_compose97iH0(int *b0, int *b1, int *b2, int width){
1207 int i;
1208
1209 for(i=0; i<width; i++){
1210 b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
1211 }
1212}
1213
1214static void vertical_compose97iH1(int *b0, int *b1, int *b2, int width){
1215 int i;
1216
1217 for(i=0; i<width; i++){
1218#ifdef lift5
1219 b1[i] -= (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS;
1220#else
1221 int r= 3*(b0[i] + b2[i]);
1222 r+= r>>4;
1223 r+= r>>8;
1224 b1[i] -= (r+W_CO)>>W_CS;
1225#endif
1226 }
1227}
1228
1229static void vertical_compose97iL0(int *b0, int *b1, int *b2, int width){
1230 int i;
1231
1232 for(i=0; i<width; i++){
1233 b1[i] += (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS;
1234 }
1235}
1236
1237static void vertical_compose97iL1(int *b0, int *b1, int *b2, int width){
1238 int i;
1239
1240 for(i=0; i<width; i++){
1241 b1[i] -= (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS;
1242 }
1243}
1244
1245static void spatial_compose97i(int *buffer, int width, int height, int stride){
39c61bbb 1246 int y;
791e7b83
MN		 1247 DWTELEM *b0= buffer + mirror(-3-1, height-1)*stride;
1248 DWTELEM *b1= buffer + mirror(-3 , height-1)*stride;
1249 DWTELEM *b2= buffer + mirror(-3+1, height-1)*stride;
1250 DWTELEM *b3= buffer + mirror(-3+2, height-1)*stride;
1251
1252 for(y=-3; y<=height; y+=2){
1253 DWTELEM *b4= buffer + mirror(y+3, height-1)*stride;
1254 DWTELEM *b5= buffer + mirror(y+4, height-1)*stride;
1255
1256 if(stride == width && y+4 < height && 0){
1257 int x;
1258 for(x=0; x<width/2; x++)
1259 b5[x] += 64*2;
1260 for(; x<width; x++)
1261 b5[x] += 169*2;
1262 }
1263
1264{START_TIMER
1265 if(b3 <= b5) vertical_compose97iL1(b3, b4, b5, width);
1266 if(b2 <= b4) vertical_compose97iH1(b2, b3, b4, width);
1267 if(b1 <= b3) vertical_compose97iL0(b1, b2, b3, width);
1268 if(b0 <= b2) vertical_compose97iH0(b0, b1, b2, width);
1269if(width>400){
1270STOP_TIMER("vertical_compose97i")}}
1271
1272{START_TIMER
1273 if(y-1>= 0) horizontal_compose97i(b0, width);
1274 if(b0 <= b2) horizontal_compose97i(b1, width);
1275if(width>400 && b0 <= b2){
1276STOP_TIMER("horizontal_compose97i")}}
1277
1278 b0=b2;
1279 b1=b3;
1280 b2=b4;
1281 b3=b5;
1282 }
1283}
1284
46c281e8 1285void ff_spatial_idwt(int *buffer, int width, int height, int stride, int type, int decomposition_count){
791e7b83
MN		 1286 int level;
1287
46c281e8
MN		 1288 for(level=decomposition_count-1; level>=0; level--){
1289 switch(type){
791e7b83
MN		 1290 case 0: spatial_compose97i(buffer, width>>level, height>>level, stride<<level); break;
1291 case 1: spatial_compose53i(buffer, width>>level, height>>level, stride<<level); break;
1292 case 2: spatial_composeX (buffer, width>>level, height>>level, stride<<level); break;
1293 }
1294 }
1295}
1296
4f4e9633 1297static void encode_subband_c0run(SnowContext *s, SubBand *b, DWTELEM *src, DWTELEM *parent, int stride, int orientation){
4f4e9633
MN		 1298 const int w= b->width;
1299 const int h= b->height;
1300 int x, y;
1301
791e7b83 1302 if(1){
791e7b83 1303 int run=0;
a8d73e56 1304 int runs[w*h];
791e7b83
MN		 1305 int run_index=0;
1306
791e7b83
MN		 1307 for(y=0; y<h; y++){
1308 for(x=0; x<w; x++){
78486403 1309 int v, p=0;
6b2f6646 1310 int /*ll=0, */l=0, lt=0, t=0, rt=0;
a8d73e56 1311 v= src[x + y*stride];
791e7b83
MN		 1312
1313 if(y){
a8d73e56 1314 t= src[x + (y-1)*stride];
791e7b83 1315 if(x){
a8d73e56 1316 lt= src[x - 1 + (y-1)*stride];
791e7b83
MN		 1317 }
1318 if(x + 1 < w){
a8d73e56 1319 rt= src[x + 1 + (y-1)*stride];
791e7b83
MN		 1320 }
1321 }
1322 if(x){
a8d73e56 1323 l= src[x - 1 + y*stride];
6b2f6646
MN		 1324 /*if(x > 1){
1325 if(orientation==1) ll= src[y + (x-2)*stride];
1326 else ll= src[x - 2 + y*stride];
791e7b83
MN		 1327 }*/
1328 }
78486403 1329 if(parent){
a8d73e56
MN		 1330 int px= x>>1;
1331 int py= y>>1;
78486403
MN		 1332 if(px<b->parent->width && py<b->parent->height)
1333 p= parent[px + py*2*stride];
1334 }
1335 if(!(/*ll|*/l|lt|t|rt|p)){
791e7b83
MN		 1336 if(v){
1337 runs[run_index++]= run;
1338 run=0;
1339 }else{
1340 run++;
1341 }
1342 }
1343 }
1344 }
1345 runs[run_index++]= run;
1346 run_index=0;
1347 run= runs[run_index++];
1348
4f4e9633 1349 put_symbol2(&s->c, b->state[1], run, 3);
791e7b83
MN		 1350
1351 for(y=0; y<h; y++){
1352 for(x=0; x<w; x++){
78486403 1353 int v, p=0;
6b2f6646 1354 int /*ll=0, */l=0, lt=0, t=0, rt=0;
a8d73e56 1355 v= src[x + y*stride];
791e7b83
MN		 1356
1357 if(y){
a8d73e56 1358 t= src[x + (y-1)*stride];
791e7b83 1359 if(x){
a8d73e56 1360 lt= src[x - 1 + (y-1)*stride];
791e7b83
MN		 1361 }
1362 if(x + 1 < w){
a8d73e56 1363 rt= src[x + 1 + (y-1)*stride];
791e7b83
MN		 1364 }
1365 }
1366 if(x){
a8d73e56 1367 l= src[x - 1 + y*stride];
6b2f6646
MN		 1368 /*if(x > 1){
1369 if(orientation==1) ll= src[y + (x-2)*stride];
1370 else ll= src[x - 2 + y*stride];
791e7b83
MN		 1371 }*/
1372 }
78486403 1373 if(parent){
a8d73e56
MN		 1374 int px= x>>1;
1375 int py= y>>1;
78486403
MN		 1376 if(px<b->parent->width && py<b->parent->height)
1377 p= parent[px + py*2*stride];
1378 }
1379 if(/*ll|*/l|lt|t|rt|p){
1380 int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p));
6b2f6646
MN		 1381
1382 put_cabac(&s->c, &b->state[0][context], !!v);
791e7b83
MN		 1383 }else{
1384 if(!run){
1385 run= runs[run_index++];
4f4e9633
MN		 1386
1387 put_symbol2(&s->c, b->state[1], run, 3);
791e7b83
MN		 1388 assert(v);
1389 }else{
1390 run--;
1391 assert(!v);
1392 }
1393 }
1394 if(v){
78486403 1395 int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p));
6b2f6646 1396
0635cbfc 1397 put_symbol2(&s->c, b->state[context + 2], ABS(v)-1, context-4);
791e7b83
MN		 1398 put_cabac(&s->c, &b->state[0][16 + 1 + 3 + quant3b[l&0xFF] + 3*quant3b[t&0xFF]], v<0);
1399 }
1400 }
1401 }
791e7b83 1402 }
791e7b83
MN		 1403}
1404
4f4e9633
MN		 1405static void encode_subband(SnowContext *s, SubBand *b, DWTELEM *src, DWTELEM *parent, int stride, int orientation){
1406// encode_subband_qtree(s, b, src, parent, stride, orientation);
1407// encode_subband_z0run(s, b, src, parent, stride, orientation);
1408 encode_subband_c0run(s, b, src, parent, stride, orientation);
1409// encode_subband_dzr(s, b, src, parent, stride, orientation);
1410}
1411
a8d73e56 1412static inline void decode_subband(SnowContext *s, SubBand *b, DWTELEM *src, DWTELEM *parent, int stride, int orientation){
791e7b83
MN		 1413 const int w= b->width;
1414 const int h= b->height;
1415 int x,y;
ea7d9cd4
MN		 1416 const int qlog= clip(s->qlog + b->qlog, 0, 128);
1417 int qmul= qexp[qlog&7]<<(qlog>>3);
1418 int qadd= (s->qbias*qmul)>>QBIAS_SHIFT;
1419
fff6d4ea
MN		 1420 START_TIMER
1421
ea7d9cd4
MN		 1422 if(b->buf == s->spatial_dwt_buffer || s->qlog == LOSSLESS_QLOG){
1423 qadd= 0;
1424 qmul= 1<<QEXPSHIFT;
1425 }
791e7b83 1426
791e7b83 1427 if(1){
791e7b83 1428 int run;
7b49c309
MN		 1429 int index=0;
1430 int prev_index=-1;
1431 int prev2_index=0;
1432 int parent_index= 0;
1433 int prev_parent_index= 0;
1434
791e7b83
MN		 1435 for(y=0; y<b->height; y++)
1436 memset(&src[y*stride], 0, b->width*sizeof(DWTELEM));
1437
4f4e9633 1438 run= get_symbol2(&s->c, b->state[1], 3);
791e7b83 1439 for(y=0; y<h; y++){
0cea8a03
MN		 1440 int v=0;
1441 int lt=0, t=0, rt=0;
1442
ff765159
MN		 1443 if(y && b->x[prev_index] == 0){
1444 rt= b->coeff[prev_index];
0cea8a03 1445 }
791e7b83 1446 for(x=0; x<w; x++){
0cea8a03
MN		 1447 int p=0;
1448 const int l= v;
1449
1450 lt= t; t= rt;
791e7b83 1451
ff765159 1452 if(y){
ea7d9cd4 1453 if(b->x[prev_index] <= x)
ff765159
MN		 1454 prev_index++;
1455 if(b->x[prev_index] == x + 1)
1456 rt= b->coeff[prev_index];
1457 else
1458 rt=0;
1459 }
78486403 1460 if(parent){
7b49c309
MN		 1461 if(x>>1 > b->parent->x[parent_index]){
1462 parent_index++;
1463 }
ff765159
MN		 1464 if(x>>1 == b->parent->x[parent_index]){
1465 p= b->parent->coeff[parent_index];
1466 }
78486403
MN		 1467 }
1468 if(/*ll|*/l|lt|t|rt|p){
1469 int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p));
6b2f6646
MN		 1470
1471 v=get_cabac(&s->c, &b->state[0][context]);
791e7b83
MN		 1472 }else{
1473 if(!run){
4f4e9633 1474 run= get_symbol2(&s->c, b->state[1], 3);
791e7b83
MN		 1475 v=1;
1476 }else{
1477 run--;
1478 v=0;
3c1adccd 1479
7b49c309
MN		 1480 if(y && parent){
1481 int max_run;
7b49c309
MN		 1482
1483 max_run= FFMIN(run, b->x[prev_index] - x - 2);
1484 max_run= FFMIN(max_run, 2*b->parent->x[parent_index] - x - 1);
1485 x+= max_run;
1486 run-= max_run;
3c1adccd 1487 }
791e7b83
MN		 1488 }
1489 }
1490 if(v){
78486403 1491 int context= av_log2(/*ABS(ll) + */3*ABS(l) + ABS(lt) + 2*ABS(t) + ABS(rt) + ABS(p));
0635cbfc 1492 v= get_symbol2(&s->c, b->state[context + 2], context-4) + 1;
ea7d9cd4
MN		 1493 if(get_cabac(&s->c, &b->state[0][16 + 1 + 3 + quant3b[l&0xFF] + 3*quant3b[t&0xFF]])){
1494 src[x + y*stride]=-(( v*qmul + qadd)>>(QEXPSHIFT));
791e7b83 1495 v= -v;
ea7d9cd4
MN		 1496 }else{
1497 src[x + y*stride]= (( v*qmul + qadd)>>(QEXPSHIFT));
1498 }
ff765159
MN		 1499 b->x[index]=x; //FIXME interleave x/coeff
1500 b->coeff[index++]= v;
7b49c309
MN		 1501 }
1502 }
1503 b->x[index++]= w+1; //end marker
1504 prev_index= prev2_index;
1505 prev2_index= index;
1506
1507 if(parent){
1508 while(b->parent->x[parent_index] != b->parent->width+1)
1509 parent_index++;
1510 parent_index++;
1511 if(y&1){
1512 prev_parent_index= parent_index;
1513 }else{
1514 parent_index= prev_parent_index;
791e7b83
MN		 1515 }
1516 }
1517 }
7b49c309 1518 b->x[index++]= w+1; //end marker
3c1adccd 1519 if(w > 200 /*level+1 == s->spatial_decomposition_count*/){
791e7b83
MN		 1520 STOP_TIMER("decode_subband")
1521 }
1522
1523 return;
1524 }
791e7b83
MN		 1525}
1526
1527static void reset_contexts(SnowContext *s){
1528 int plane_index, level, orientation;
1529
19aa028d 1530 for(plane_index=0; plane_index<3; plane_index++){
791e7b83
MN		 1531 for(level=0; level<s->spatial_decomposition_count; level++){
1532 for(orientation=level ? 1:0; orientation<4; orientation++){
1533 memset(s->plane[plane_index].band[level][orientation].state, 0, sizeof(s->plane[plane_index].band[level][orientation].state));
1534 }
1535 }
1536 }
791e7b83 1537 memset(s->header_state, 0, sizeof(s->header_state));
155ec6ed
MN		 1538 memset(s->block_state, 0, sizeof(s->block_state));
1539}
1540
1541static int alloc_blocks(SnowContext *s){
1542 int w= -((-s->avctx->width )>>LOG2_MB_SIZE);
1543 int h= -((-s->avctx->height)>>LOG2_MB_SIZE);
1544
1545 s->b_width = w;
1546 s->b_height= h;
1547
1548 s->block= av_mallocz(w * h * sizeof(BlockNode) << (s->block_max_depth*2));
1549 return 0;
1550}
1551
1552static inline void copy_cabac_state(CABACContext *d, CABACContext *s){
1553 PutBitContext bak= d->pb;
1554 *d= *s;
1555 d->pb= bak;
1556}
1557
1558//near copy & paste from dsputil, FIXME
1559static int pix_sum(uint8_t * pix, int line_size, int w)
1560{
1561 int s, i, j;
1562
1563 s = 0;
1564 for (i = 0; i < w; i++) {
1565 for (j = 0; j < w; j++) {
1566 s += pix[0];
1567 pix ++;
1568 }
1569 pix += line_size - w;
1570 }
1571 return s;
1572}
1573
1574//near copy & paste from dsputil, FIXME
1575static int pix_norm1(uint8_t * pix, int line_size, int w)
1576{
1577 int s, i, j;
1578 uint32_t *sq = squareTbl + 256;
1579
1580 s = 0;
1581 for (i = 0; i < w; i++) {
1582 for (j = 0; j < w; j ++) {
1583 s += sq[pix[0]];
1584 pix ++;
1585 }
1586 pix += line_size - w;
1587 }
1588 return s;
1589}
1590
1591static inline void set_blocks(SnowContext *s, int level, int x, int y, int l, int cb, int cr, int mx, int my, int type){
1592 const int w= s->b_width << s->block_max_depth;
1593 const int rem_depth= s->block_max_depth - level;
1594 const int index= (x + y*w) << rem_depth;
1595 const int block_w= 1<<rem_depth;
1596 BlockNode block;
1597 int i,j;
1598
1599 block.color[0]= l;
1600 block.color[1]= cb;
1601 block.color[2]= cr;
1602 block.mx= mx;
1603 block.my= my;
1604 block.type= type;
1605 block.level= level;
1606
1607 for(j=0; j<block_w; j++){
1608 for(i=0; i<block_w; i++){
1609 s->block[index + i + j*w]= block;
1610 }
1611 }
1612}
1613
1614static inline void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index){
1615 const int offset[3]= {
1616 y*c-> stride + x,
1617 ((y*c->uvstride + x)>>1),
1618 ((y*c->uvstride + x)>>1),
1619 };
1620 int i;
1621 for(i=0; i<3; i++){
1622 c->src[0][i]= src [i];
1623 c->ref[0][i]= ref [i] + offset[i];
1624 }
1625 assert(!ref_index);
1626}
1627
1628//FIXME copy&paste
1629#define P_LEFT P[1]
1630#define P_TOP P[2]
1631#define P_TOPRIGHT P[3]
1632#define P_MEDIAN P[4]
1633#define P_MV1 P[9]
1634#define FLAG_QPEL 1 //must be 1
1635
1636static int encode_q_branch(SnowContext *s, int level, int x, int y){
1637 uint8_t p_buffer[1024];
1638 uint8_t i_buffer[1024];
1639 uint8_t p_state[sizeof(s->block_state)];
1640 uint8_t i_state[sizeof(s->block_state)];
1641 CABACContext pc, ic;
1642 PutBitContext pbbak= s->c.pb;
1643 int score, score2, iscore, i_len, p_len, block_s, sum;
1644 const int w= s->b_width << s->block_max_depth;
1645 const int h= s->b_height << s->block_max_depth;
1646 const int rem_depth= s->block_max_depth - level;
1647 const int index= (x + y*w) << rem_depth;
1648 const int block_w= 1<<(LOG2_MB_SIZE - level);
1649 static BlockNode null_block= { //FIXME add border maybe
1650 .color= {128,128,128},
1651 .mx= 0,
1652 .my= 0,
1653 .type= 0,
1654 .level= 0,
1655 };
1656 int trx= (x+1)<<rem_depth;
1657 int try= (y+1)<<rem_depth;
1658 BlockNode *left = x ? &s->block[index-1] : &null_block;
1659 BlockNode *top = y ? &s->block[index-w] : &null_block;
1660 BlockNode *right = trx<w ? &s->block[index+1] : &null_block;
1661 BlockNode *bottom= try<h ? &s->block[index+w] : &null_block;
1662 BlockNode *tl = y && x ? &s->block[index-w-1] : left;
1663 BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt
1664 int pl = left->color[0];
1665 int pcb= left->color[1];
1666 int pcr= left->color[2];
1667 int pmx= mid_pred(left->mx, top->mx, tr->mx);
1668 int pmy= mid_pred(left->my, top->my, tr->my);
1669 int mx=0, my=0;
1670 int l,cr,cb, i;
1671 const int stride= s->current_picture.linesize[0];
1672 const int uvstride= s->current_picture.linesize[1];
1673 const int instride= s->input_picture.linesize[0];
1674 const int uvinstride= s->input_picture.linesize[1];
1675 uint8_t *new_l = s->input_picture.data[0] + (x + y* instride)*block_w;
1676 uint8_t *new_cb= s->input_picture.data[1] + (x + y*uvinstride)*block_w/2;
1677 uint8_t *new_cr= s->input_picture.data[2] + (x + y*uvinstride)*block_w/2;
1678 uint8_t current_mb[3][stride*block_w];
1679 uint8_t *current_data[3]= {&current_mb[0][0], &current_mb[1][0], &current_mb[2][0]};
1680 int P[10][2];
1681 int16_t last_mv[3][2];
1682 int qpel= !!(s->avctx->flags & CODEC_FLAG_QPEL); //unused
1683 const int shift= 1+qpel;
1684 MotionEstContext *c= &s->m.me;
1685 int mx_context= av_log2(2*ABS(left->mx - top->mx));
1686 int my_context= av_log2(2*ABS(left->my - top->my));
1687 int s_context= 2*left->level + 2*top->level + tl->level + tr->level;
1688
1689 assert(sizeof(s->block_state) >= 256);
1690 if(s->keyframe){
1691 set_blocks(s, level, x, y, pl, pcb, pcr, pmx, pmy, BLOCK_INTRA);
1692 return 0;
1693 }
1694
1695 //FIXME optimize
1696 for(i=0; i<block_w; i++)
1697 memcpy(&current_mb[0][0] + stride*i, new_l + instride*i, block_w);
1698 for(i=0; i<block_w>>1; i++)
1699 memcpy(&current_mb[1][0] + uvstride*i, new_cb + uvinstride*i, block_w>>1);
1700 for(i=0; i<block_w>>1; i++)
1701 memcpy(&current_mb[2][0] + uvstride*i, new_cr + uvinstride*i, block_w>>1);
1702
1703// clip predictors / edge ?
1704
1705 P_LEFT[0]= left->mx;
1706 P_LEFT[1]= left->my;
1707 P_TOP [0]= top->mx;
1708 P_TOP [1]= top->my;
1709 P_TOPRIGHT[0]= tr->mx;
1710 P_TOPRIGHT[1]= tr->my;
1711
1712 last_mv[0][0]= s->block[index].mx;
1713 last_mv[0][1]= s->block[index].my;
1714 last_mv[1][0]= right->mx;
1715 last_mv[1][1]= right->my;
1716 last_mv[2][0]= bottom->mx;
1717 last_mv[2][1]= bottom->my;
1718
1719 s->m.mb_stride=2;
1720 s->m.mb_x=
1721 s->m.mb_y= 0;
1722 s->m.me.skip= 0;
1723
1724 init_ref(c, current_data, s->last_picture.data, NULL, block_w*x, block_w*y, 0);
1725
1726 assert(s->m.me. stride == stride);
1727 assert(s->m.me.uvstride == uvstride);
1728
1729 c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
1730 c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
1731 c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
1732 c->current_mv_penalty= c->mv_penalty[s->m.f_code=1] + MAX_MV;
1733
1734 c->xmin = - x*block_w - 16;
1735 c->ymin = - y*block_w - 16;
1736 c->xmax = - (x+1)*block_w + (w<<(LOG2_MB_SIZE - s->block_max_depth)) + 16;
1737 c->ymax = - (y+1)*block_w + (h<<(LOG2_MB_SIZE - s->block_max_depth)) + 16;
1738
1739 if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift);
1740 if(P_LEFT[1] > (c->ymax<<shift)) P_LEFT[1] = (c->ymax<<shift);
1741 if(P_TOP[0] > (c->xmax<<shift)) P_TOP[0] = (c->xmax<<shift);
1742 if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift);
1743 if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
1744 if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift); //due to pmx no clip
1745 if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
1746
1747 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1748 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1749
1750 if (!y) {
1751 c->pred_x= P_LEFT[0];
1752 c->pred_y= P_LEFT[1];
1753 } else {
1754 c->pred_x = P_MEDIAN[0];
1755 c->pred_y = P_MEDIAN[1];
1756 }
1757
1758 score= ff_epzs_motion_search(&s->m, &mx, &my, P, 0, /*ref_index*/ 0, last_mv,
1759 (1<<16)>>shift, level-LOG2_MB_SIZE+4, block_w);
1760
1761 assert(mx >= c->xmin);
1762 assert(mx <= c->xmax);
1763 assert(my >= c->ymin);
1764 assert(my <= c->ymax);
1765
1766 score= s->m.me.sub_motion_search(&s->m, &mx, &my, score, 0, 0, level-LOG2_MB_SIZE+4, block_w);
1767 score= ff_get_mb_score(&s->m, mx, my, 0, 0, level-LOG2_MB_SIZE+4, block_w, 0);
1768 //FIXME if mb_cmp != SSE then intra cant be compared currently and mb_penalty vs. lambda2
1769
1770 // subpel search
1771 pc= s->c;
1772 init_put_bits(&pc.pb, p_buffer, sizeof(p_buffer));
1773 memcpy(p_state, s->block_state, sizeof(s->block_state));
1774
1775 if(level!=s->block_max_depth)
1776 put_cabac(&pc, &p_state[4 + s_context], 1);
1777 put_cabac(&pc, &p_state[1 + left->type + top->type], 0);
1778 put_symbol(&pc, &p_state[128 + 32*mx_context], mx - pmx, 1);
1779 put_symbol(&pc, &p_state[128 + 32*my_context], my - pmy, 1);
1780 p_len= put_bits_count(&pc.pb);
1781 score += (s->lambda2*(p_len + pc.outstanding_count - s->c.outstanding_count))>>FF_LAMBDA_SHIFT;
1782
1783 block_s= block_w*block_w;
1784 sum = pix_sum(&current_mb[0][0], stride, block_w);
1785 l= (sum + block_s/2)/block_s;
1786 iscore = pix_norm1(&current_mb[0][0], stride, block_w) - 2*l*sum + l*l*block_s;
1787
1788 block_s= block_w*block_w>>2;
1789 sum = pix_sum(&current_mb[1][0], uvstride, block_w>>1);
1790 cb= (sum + block_s/2)/block_s;
1791// iscore += pix_norm1(&current_mb[1][0], uvstride, block_w>>1) - 2*cb*sum + cb*cb*block_s;
1792 sum = pix_sum(&current_mb[2][0], uvstride, block_w>>1);
1793 cr= (sum + block_s/2)/block_s;
1794// iscore += pix_norm1(&current_mb[2][0], uvstride, block_w>>1) - 2*cr*sum + cr*cr*block_s;
1795
1796 ic= s->c;
1797 init_put_bits(&ic.pb, i_buffer, sizeof(i_buffer));
1798 memcpy(i_state, s->block_state, sizeof(s->block_state));
1799 if(level!=s->block_max_depth)
1800 put_cabac(&ic, &i_state[4 + s_context], 1);
1801 put_cabac(&ic, &i_state[1 + left->type + top->type], 1);
1802 put_symbol(&ic, &i_state[32], l-pl , 1);
1803 put_symbol(&ic, &i_state[64], cb-pcb, 1);
1804 put_symbol(&ic, &i_state[96], cr-pcr, 1);
1805 i_len= put_bits_count(&ic.pb);
1806 iscore += (s->lambda2*(i_len + ic.outstanding_count - s->c.outstanding_count))>>FF_LAMBDA_SHIFT;
1807
1808// assert(score==256*256*256*64-1);
1809 assert(iscore < 255*255*256 + s->lambda2*10);
1810 assert(iscore >= 0);
1811 assert(l>=0 && l<=255);
1812 assert(pl>=0 && pl<=255);
1813
1814 if(level==0){
1815 int varc= iscore >> 8;
1816 int vard= score >> 8;
1817 if (vard <= 64 || vard < varc)
1818 c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
1819 else
1820 c->scene_change_score+= s->m.qscale;
1821 }
1822
1823 if(level!=s->block_max_depth){
1824 put_cabac(&s->c, &s->block_state[4 + s_context], 0);
1825 score2 = encode_q_branch(s, level+1, 2*x+0, 2*y+0);
1826 score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+0);
1827 score2+= encode_q_branch(s, level+1, 2*x+0, 2*y+1);
1828 score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+1);
1829 score2+= s->lambda2>>FF_LAMBDA_SHIFT; //FIXME exact split overhead
1830
1831 if(score2 < score && score2 < iscore)
1832 return score2;
1833 }
1834
1835 if(iscore < score){
1836 flush_put_bits(&ic.pb);
1837 ff_copy_bits(&pbbak, i_buffer, i_len);
1838 s->c= ic;
1839 s->c.pb= pbbak;
1840 set_blocks(s, level, x, y, l, cb, cr, pmx, pmy, BLOCK_INTRA);
1841 memcpy(s->block_state, i_state, sizeof(s->block_state));
1842 return iscore;
1843 }else{
1844 flush_put_bits(&pc.pb);
1845 ff_copy_bits(&pbbak, p_buffer, p_len);
1846 s->c= pc;
1847 s->c.pb= pbbak;
1848 set_blocks(s, level, x, y, pl, pcb, pcr, mx, my, 0);
1849 memcpy(s->block_state, p_state, sizeof(s->block_state));
1850 return score;
1851 }
1852}
1853
1854static void decode_q_branch(SnowContext *s, int level, int x, int y){
1855 const int w= s->b_width << s->block_max_depth;
155ec6ed
MN		 1856 const int rem_depth= s->block_max_depth - level;
1857 const int index= (x + y*w) << rem_depth;
1858 static BlockNode null_block= { //FIXME add border maybe
1859 .color= {128,128,128},
1860 .mx= 0,
1861 .my= 0,
1862 .type= 0,
1863 .level= 0,
1864 };
1865 int trx= (x+1)<<rem_depth;
155ec6ed
MN		 1866 BlockNode *left = x ? &s->block[index-1] : &null_block;
1867 BlockNode *top = y ? &s->block[index-w] : &null_block;
1868 BlockNode *tl = y && x ? &s->block[index-w-1] : left;
1869 BlockNode *tr = y && trx<w && ((x&1)==0 || level==0) ? &s->block[index-w+(1<<rem_depth)] : tl; //FIXME use lt
1870 int s_context= 2*left->level + 2*top->level + tl->level + tr->level;
1871
1872 if(s->keyframe){
1873 set_blocks(s, level, x, y, null_block.color[0], null_block.color[1], null_block.color[2], null_block.mx, null_block.my, BLOCK_INTRA);
1874 return;
1875 }
1876
1877 if(level==s->block_max_depth || get_cabac(&s->c, &s->block_state[4 + s_context])){
1878 int type;
1879 int l = left->color[0];
1880 int cb= left->color[1];
1881 int cr= left->color[2];
1882 int mx= mid_pred(left->mx, top->mx, tr->mx);
1883 int my= mid_pred(left->my, top->my, tr->my);
1884 int mx_context= av_log2(2*ABS(left->mx - top->mx)) + 0*av_log2(2*ABS(tr->mx - top->mx));
1885 int my_context= av_log2(2*ABS(left->my - top->my)) + 0*av_log2(2*ABS(tr->my - top->my));
1886
1887 type= get_cabac(&s->c, &s->block_state[1 + left->type + top->type]) ? BLOCK_INTRA : 0;
1888
1889 if(type){
1890 l += get_symbol(&s->c, &s->block_state[32], 1);
1891 cb+= get_symbol(&s->c, &s->block_state[64], 1);
1892 cr+= get_symbol(&s->c, &s->block_state[96], 1);
1893 }else{
1894 mx+= get_symbol(&s->c, &s->block_state[128 + 32*mx_context], 1);
1895 my+= get_symbol(&s->c, &s->block_state[128 + 32*my_context], 1);
1896 }
1897 set_blocks(s, level, x, y, l, cb, cr, mx, my, type);
1898 }else{
1899 decode_q_branch(s, level+1, 2*x+0, 2*y+0);
1900 decode_q_branch(s, level+1, 2*x+1, 2*y+0);
1901 decode_q_branch(s, level+1, 2*x+0, 2*y+1);
1902 decode_q_branch(s, level+1, 2*x+1, 2*y+1);
1903 }
1904}
1905
1906static void encode_blocks(SnowContext *s){
1907 int x, y;
1908 int w= s->b_width;
1909 int h= s->b_height;
1910
1911 for(y=0; y<h; y++){
1912 for(x=0; x<w; x++){
1913 encode_q_branch(s, 0, x, y);
1914 }
1915 }
1916}
1917
1918static void decode_blocks(SnowContext *s){
1919 int x, y;
1920 int w= s->b_width;
1921 int h= s->b_height;
1922
1923 for(y=0; y<h; y++){
1924 for(x=0; x<w; x++){
1925 decode_q_branch(s, 0, x, y);
1926 }
1927 }
791e7b83
MN		 1928}
1929
1930static void mc_block(uint8_t *dst, uint8_t *src, uint8_t *tmp, int stride, int b_w, int b_h, int dx, int dy){
1931 int x, y;
1932
1933 for(y=0; y < b_h+5; y++){
1934 for(x=0; x < b_w; x++){
1935 int a0= src[x + y*stride];
1936 int a1= src[x + 1 + y*stride];
1937 int a2= src[x + 2 + y*stride];
1938 int a3= src[x + 3 + y*stride];
1939 int a4= src[x + 4 + y*stride];
1940 int a5= src[x + 5 + y*stride];
1941// int am= 9*(a1+a2) - (a0+a3);
1942 int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5);
1943// int am= 18*(a2+a3) - 2*(a1+a4);
1944// int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3;
1945// int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3;
1946
1947// if(b_w==16) am= 8*(a1+a2);
1948
1949 if(dx<8) tmp[x + y*stride]= (32*a2*( 8-dx) + am* dx + 128)>>8;
1950 else tmp[x + y*stride]= ( am*(16-dx) + 32*a3*(dx-8) + 128)>>8;
1951
1952/* if (dx< 4) tmp[x + y*stride]= (16*a1*( 4-dx) + aL* dx + 32)>>6;
1953 else if(dx< 8) tmp[x + y*stride]= ( aL*( 8-dx) + am*(dx- 4) + 32)>>6;
1954 else if(dx<12) tmp[x + y*stride]= ( am*(12-dx) + aR*(dx- 8) + 32)>>6;
1955 else tmp[x + y*stride]= ( aR*(16-dx) + 16*a2*(dx-12) + 32)>>6;*/
1956 }
1957 }
1958 for(y=0; y < b_h; y++){
1959 for(x=0; x < b_w; x++){
1960 int a0= tmp[x + y *stride];
1961 int a1= tmp[x + (y + 1)*stride];
1962 int a2= tmp[x + (y + 2)*stride];
1963 int a3= tmp[x + (y + 3)*stride];
1964 int a4= tmp[x + (y + 4)*stride];
1965 int a5= tmp[x + (y + 5)*stride];
1966 int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5);
1967// int am= 18*(a2+a3) - 2*(a1+a4);
1968/* int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3;
1969 int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3;*/
1970
1971// if(b_w==16) am= 8*(a1+a2);
1972
1973 if(dy<8) dst[x + y*stride]= (32*a2*( 8-dy) + am* dy + 128)>>8;
1974 else dst[x + y*stride]= ( am*(16-dy) + 32*a3*(dy-8) + 128)>>8;
1975
1976/* if (dy< 4) tmp[x + y*stride]= (16*a1*( 4-dy) + aL* dy + 32)>>6;
1977 else if(dy< 8) tmp[x + y*stride]= ( aL*( 8-dy) + am*(dy- 4) + 32)>>6;
1978 else if(dy<12) tmp[x + y*stride]= ( am*(12-dy) + aR*(dy- 8) + 32)>>6;
1979 else tmp[x + y*stride]= ( aR*(16-dy) + 16*a2*(dy-12) + 32)>>6;*/
1980 }
1981 }
1982}
1983
1984#define mcb(dx,dy,b_w)\
1985static void mc_block ## dx ## dy(uint8_t *dst, uint8_t *src, int stride){\
1986 uint8_t tmp[stride*(b_w+5)];\
1987 mc_block(dst, src-2-2*stride, tmp, stride, b_w, b_w, dx, dy);\
1988}
1989
1990mcb( 0, 0,16)
1991mcb( 4, 0,16)
1992mcb( 8, 0,16)
1993mcb(12, 0,16)
1994mcb( 0, 4,16)
1995mcb( 4, 4,16)
1996mcb( 8, 4,16)
1997mcb(12, 4,16)
1998mcb( 0, 8,16)
1999mcb( 4, 8,16)
2000mcb( 8, 8,16)
2001mcb(12, 8,16)
2002mcb( 0,12,16)
2003mcb( 4,12,16)
2004mcb( 8,12,16)
2005mcb(12,12,16)
2006
2007#define mca(dx,dy,b_w)\
2008static void mc_block_hpel ## dx ## dy(uint8_t *dst, uint8_t *src, int stride, int h){\
2009 uint8_t tmp[stride*(b_w+5)];\
2010 assert(h==b_w);\
2011 mc_block(dst, src-2-2*stride, tmp, stride, b_w, b_w, dx, dy);\
2012}
2013
2014mca( 0, 0,16)
2015mca( 8, 0,16)
2016mca( 0, 8,16)
2017mca( 8, 8,16)
2018
fff6d4ea 2019static always_inline void add_xblock(SnowContext *s, DWTELEM *dst, uint8_t *src, uint8_t *obmc, int s_x, int s_y, int b_w, int b_h, int mv_x, int mv_y, int w, int h, int dst_stride, int src_stride, int obmc_stride, int mb_type, int add, int color){
791e7b83
MN		 2020 uint8_t tmp[src_stride*(b_h+5)]; //FIXME move to context to gurantee alignment
2021 int x,y;
2022
2023 if(s_x<0){
2024 obmc -= s_x;
2025 b_w += s_x;
2026 s_x=0;
2027 }else if(s_x + b_w > w){
2028 b_w = w - s_x;
2029 }
2030 if(s_y<0){
2031 obmc -= s_y*obmc_stride;
2032 b_h += s_y;
2033 s_y=0;
2034 }else if(s_y + b_h> h){
2035 b_h = h - s_y;
2036 }
2037
620ab797
MN		 2038 if(b_w<=0 || b_h<=0) return;
2039
791e7b83 2040 dst += s_x + s_y*dst_stride;
155ec6ed
MN		 2041
2042 if(mb_type==BLOCK_INTRA){
791e7b83
MN		 2043 for(y=0; y < b_h; y++){
2044 for(x=0; x < b_w; x++){
155ec6ed
MN		 2045 if(add) dst[x + y*dst_stride] += obmc[x + y*obmc_stride] * color * (256/OBMC_MAX);
2046 else dst[x + y*dst_stride] -= obmc[x + y*obmc_stride] * color * (256/OBMC_MAX);
791e7b83
MN		 2047 }
2048 }
2049 }else{
2050 int dx= mv_x&15;
2051 int dy= mv_y&15;
2052// int dxy= (mv_x&1) + 2*(mv_y&1);
2053
2054 s_x += (mv_x>>4) - 2;
2055 s_y += (mv_y>>4) - 2;
2056 src += s_x + s_y*src_stride;
2057 //use dsputil
2058
2059 if( (unsigned)s_x >= w - b_w - 4
2060 || (unsigned)s_y >= h - b_h - 4){
2061 ff_emulated_edge_mc(tmp + 32, src, src_stride, b_w+5, b_h+5, s_x, s_y, w, h);
2062 src= tmp + 32;
2063 }
2064
155ec6ed
MN		 2065 assert(mb_type==0);
2066 mc_block(tmp, src, tmp + 64+8, src_stride, b_w, b_h, dx, dy);
791e7b83
MN		 2067 for(y=0; y < b_h; y++){
2068 for(x=0; x < b_w; x++){
2069 if(add) dst[x + y*dst_stride] += obmc[x + y*obmc_stride] * tmp[x + y*src_stride] * (256/OBMC_MAX);
2070 else dst[x + y*dst_stride] -= obmc[x + y*obmc_stride] * tmp[x + y*src_stride] * (256/OBMC_MAX);
2071 }
2072 }
2073 }
2074}
2075
2076static void predict_plane(SnowContext *s, DWTELEM *buf, int plane_index, int add){
2077 Plane *p= &s->plane[plane_index];
155ec6ed
MN		 2078 const int mb_w= s->b_width << s->block_max_depth;
2079 const int mb_h= s->b_height << s->block_max_depth;
2080 const int mb_stride= mb_w;
791e7b83
MN		 2081 int x, y, mb_x, mb_y;
2082 int scale = plane_index ? s->mv_scale : 2*s->mv_scale;
155ec6ed
MN		 2083 int block_size = MB_SIZE >> s->block_max_depth;
2084 int block_w = plane_index ? block_size/2 : block_size;
2085 uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth];
2086 int obmc_stride= plane_index ? block_size : 2*block_size;
791e7b83
MN		 2087 int ref_stride= s->last_picture.linesize[plane_index];
2088 uint8_t *ref = s->last_picture.data[plane_index];
2089 int w= p->width;
2090 int h= p->height;
fff6d4ea 2091 START_TIMER
791e7b83
MN		 2092
2093if(s->avctx->debug&512){
2094 for(y=0; y<h; y++){
2095 for(x=0; x<w; x++){
2096 if(add) buf[x + y*w]+= 128*256;
2097 else buf[x + y*w]-= 128*256;
2098 }
2099 }
2100
2101 return;
2102}
2103 for(mb_y=-1; mb_y<=mb_h; mb_y++){
2104 for(mb_x=-1; mb_x<=mb_w; mb_x++){
2105 int index= clip(mb_x, 0, mb_w-1) + clip(mb_y, 0, mb_h-1)*mb_stride;
2106
fff6d4ea 2107 START_TIMER
155ec6ed 2108 add_xblock(s, buf, ref, obmc,
791e7b83
MN		 2109 block_w*mb_x - block_w/2,
2110 block_w*mb_y - block_w/2,
2111 2*block_w, 2*block_w,
155ec6ed 2112 s->block[index].mx*scale, s->block[index].my*scale,
791e7b83
MN		 2113 w, h,
2114 w, ref_stride, obmc_stride,
155ec6ed 2115 s->block[index].type, add, s->block[index].color[plane_index]);
791e7b83 2116
fff6d4ea 2117 STOP_TIMER("add_xblock")
791e7b83
MN		 2118 }
2119 }
fff6d4ea
MN		 2120
2121 STOP_TIMER("predict_plane")
791e7b83
MN		 2122}
2123
2124static void quantize(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int bias){
2125 const int level= b->level;
2126 const int w= b->width;
2127 const int h= b->height;
2128 const int qlog= clip(s->qlog + b->qlog, 0, 128);
2129 const int qmul= qexp[qlog&7]<<(qlog>>3);
da66b631
MN		 2130 int x,y, thres1, thres2;
2131 START_TIMER
791e7b83
MN		 2132
2133 assert(QROOT==8);
2134
93fbdb5a
MN		 2135 if(s->qlog == LOSSLESS_QLOG) return;
2136
791e7b83 2137 bias= bias ? 0 : (3*qmul)>>3;
da66b631
MN		 2138 thres1= ((qmul - bias)>>QEXPSHIFT) - 1;
2139 thres2= 2*thres1;
791e7b83
MN		 2140
2141 if(!bias){
2142 for(y=0; y<h; y++){
2143 for(x=0; x<w; x++){
da66b631
MN		 2144 int i= src[x + y*stride];
2145
2146 if((unsigned)(i+thres1) > thres2){
2147 if(i>=0){
2148 i<<= QEXPSHIFT;
2149 i/= qmul; //FIXME optimize
2150 src[x + y*stride]= i;
2151 }else{
2152 i= -i;
2153 i<<= QEXPSHIFT;
2154 i/= qmul; //FIXME optimize
2155 src[x + y*stride]= -i;
2156 }
2157 }else
2158 src[x + y*stride]= 0;
791e7b83
MN		 2159 }
2160 }
2161 }else{
2162 for(y=0; y<h; y++){
2163 for(x=0; x<w; x++){
2164 int i= src[x + y*stride];
2165
da66b631
MN		 2166 if((unsigned)(i+thres1) > thres2){
2167 if(i>=0){
2168 i<<= QEXPSHIFT;
2169 i= (i + bias) / qmul; //FIXME optimize
2170 src[x + y*stride]= i;
2171 }else{
2172 i= -i;
2173 i<<= QEXPSHIFT;
2174 i= (i + bias) / qmul; //FIXME optimize
2175 src[x + y*stride]= -i;
2176 }
2177 }else
2178 src[x + y*stride]= 0;
791e7b83
MN		 2179 }
2180 }
2181 }
da66b631
MN		 2182 if(level+1 == s->spatial_decomposition_count){
2183// STOP_TIMER("quantize")
2184 }
791e7b83
MN		 2185}
2186
2187static void dequantize(SnowContext *s, SubBand *b, DWTELEM *src, int stride){
791e7b83
MN		 2188 const int w= b->width;
2189 const int h= b->height;
2190 const int qlog= clip(s->qlog + b->qlog, 0, 128);
2191 const int qmul= qexp[qlog&7]<<(qlog>>3);
2192 const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT;
2193 int x,y;
ea7d9cd4 2194 START_TIMER
791e7b83 2195
93fbdb5a
MN		 2196 if(s->qlog == LOSSLESS_QLOG) return;
2197
791e7b83
MN		 2198 assert(QROOT==8);
2199
2200 for(y=0; y<h; y++){
2201 for(x=0; x<w; x++){
2202 int i= src[x + y*stride];
2203 if(i<0){
2204 src[x + y*stride]= -((-i*qmul + qadd)>>(QEXPSHIFT)); //FIXME try different bias
2205 }else if(i>0){
2206 src[x + y*stride]= (( i*qmul + qadd)>>(QEXPSHIFT));
2207 }
2208 }
2209 }
ea7d9cd4
MN		 2210 if(w > 200 /*level+1 == s->spatial_decomposition_count*/){
2211 STOP_TIMER("dquant")
2212 }
791e7b83
MN		 2213}
2214
2215static void decorrelate(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int inverse, int use_median){
2216 const int w= b->width;
2217 const int h= b->height;
2218 int x,y;
2219
2220 for(y=h-1; y>=0; y--){
2221 for(x=w-1; x>=0; x--){
2222 int i= x + y*stride;
2223
2224 if(x){
2225 if(use_median){
2226 if(y && x+1<w) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]);
2227 else src[i] -= src[i - 1];
2228 }else{
2229 if(y) src[i] -= mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]);
2230 else src[i] -= src[i - 1];
2231 }
2232 }else{
2233 if(y) src[i] -= src[i - stride];
2234 }
2235 }
2236 }
2237}
2238
2239static void correlate(SnowContext *s, SubBand *b, DWTELEM *src, int stride, int inverse, int use_median){
2240 const int w= b->width;
2241 const int h= b->height;
2242 int x,y;
2243
2244 for(y=0; y<h; y++){
2245 for(x=0; x<w; x++){
2246 int i= x + y*stride;
2247
2248 if(x){
2249 if(use_median){
2250 if(y && x+1<w) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - stride + 1]);
2251 else src[i] += src[i - 1];
2252 }else{
2253 if(y) src[i] += mid_pred(src[i - 1], src[i - stride], src[i - 1] + src[i - stride] - src[i - 1 - stride]);
2254 else src[i] += src[i - 1];
2255 }
2256 }else{
2257 if(y) src[i] += src[i - stride];
2258 }
2259 }
2260 }
2261}
2262
2263static void encode_header(SnowContext *s){
2264 int plane_index, level, orientation;
19aa028d 2265 uint8_t kstate[32]={0};
791e7b83 2266
19aa028d
MN		 2267 put_cabac(&s->c, kstate, s->keyframe);
2268 if(s->keyframe || s->always_reset)
2269 reset_contexts(s);
791e7b83
MN		 2270 if(s->keyframe){
2271 put_symbol(&s->c, s->header_state, s->version, 0);
19aa028d 2272 put_cabac(&s->c, s->header_state, s->always_reset);
791e7b83
MN		 2273 put_symbol(&s->c, s->header_state, s->temporal_decomposition_type, 0);
2274 put_symbol(&s->c, s->header_state, s->temporal_decomposition_count, 0);
2275 put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0);
2276 put_symbol(&s->c, s->header_state, s->colorspace_type, 0);
791e7b83
MN		 2277 put_symbol(&s->c, s->header_state, s->chroma_h_shift, 0);
2278 put_symbol(&s->c, s->header_state, s->chroma_v_shift, 0);
2279 put_cabac(&s->c, s->header_state, s->spatial_scalability);
2280// put_cabac(&s->c, s->header_state, s->rate_scalability);
2281
2282 for(plane_index=0; plane_index<2; plane_index++){
2283 for(level=0; level<s->spatial_decomposition_count; level++){
2284 for(orientation=level ? 1:0; orientation<4; orientation++){
2285 if(orientation==2) continue;
2286 put_symbol(&s->c, s->header_state, s->plane[plane_index].band[level][orientation].qlog, 1);
2287 }
2288 }
2289 }
2290 }
2291 put_symbol(&s->c, s->header_state, s->spatial_decomposition_type, 0);
2292 put_symbol(&s->c, s->header_state, s->qlog, 1);
2293 put_symbol(&s->c, s->header_state, s->mv_scale, 0);
2294 put_symbol(&s->c, s->header_state, s->qbias, 1);
155ec6ed 2295 put_symbol(&s->c, s->header_state, s->block_max_depth, 0);
791e7b83
MN		 2296}
2297
2298static int decode_header(SnowContext *s){
2299 int plane_index, level, orientation;
19aa028d 2300 uint8_t kstate[32]={0};
791e7b83 2301
19aa028d
MN		 2302 s->keyframe= get_cabac(&s->c, kstate);
2303 if(s->keyframe || s->always_reset)
2304 reset_contexts(s);
791e7b83
MN		 2305 if(s->keyframe){
2306 s->version= get_symbol(&s->c, s->header_state, 0);
2307 if(s->version>0){
2308 av_log(s->avctx, AV_LOG_ERROR, "version %d not supported", s->version);
2309 return -1;
2310 }
19aa028d 2311 s->always_reset= get_cabac(&s->c, s->header_state);
791e7b83
MN		 2312 s->temporal_decomposition_type= get_symbol(&s->c, s->header_state, 0);
2313 s->temporal_decomposition_count= get_symbol(&s->c, s->header_state, 0);
2314 s->spatial_decomposition_count= get_symbol(&s->c, s->header_state, 0);
2315 s->colorspace_type= get_symbol(&s->c, s->header_state, 0);
791e7b83
MN		 2316 s->chroma_h_shift= get_symbol(&s->c, s->header_state, 0);
2317 s->chroma_v_shift= get_symbol(&s->c, s->header_state, 0);
2318 s->spatial_scalability= get_cabac(&s->c, s->header_state);
2319// s->rate_scalability= get_cabac(&s->c, s->header_state);
2320
2321 for(plane_index=0; plane_index<3; plane_index++){
2322 for(level=0; level<s->spatial_decomposition_count; level++){
2323 for(orientation=level ? 1:0; orientation<4; orientation++){
2324 int q;
2325 if (plane_index==2) q= s->plane[1].band[level][orientation].qlog;
2326 else if(orientation==2) q= s->plane[plane_index].band[level][1].qlog;
2327 else q= get_symbol(&s->c, s->header_state, 1);
2328 s->plane[plane_index].band[level][orientation].qlog= q;
2329 }
2330 }
2331 }
2332 }
2333
2334 s->spatial_decomposition_type= get_symbol(&s->c, s->header_state, 0);
2335 if(s->spatial_decomposition_type > 2){
2336 av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_type %d not supported", s->spatial_decomposition_type);
2337 return -1;
2338 }
2339
2340 s->qlog= get_symbol(&s->c, s->header_state, 1);
2341 s->mv_scale= get_symbol(&s->c, s->header_state, 0);
2342 s->qbias= get_symbol(&s->c, s->header_state, 1);
155ec6ed 2343 s->block_max_depth= get_symbol(&s->c, s->header_state, 0);
791e7b83
MN		 2344
2345 return 0;
2346}
2347
2348static int common_init(AVCodecContext *avctx){
2349 SnowContext *s = avctx->priv_data;
2350 int width, height;
2351 int level, orientation, plane_index, dec;
2352
2353 s->avctx= avctx;
2354
2355 dsputil_init(&s->dsp, avctx);
2356
2357#define mcf(dx,dy)\
2358 s->dsp.put_qpel_pixels_tab [0][dy+dx/4]=\
2359 s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\
2360 mc_block ## dx ## dy;
2361
2362 mcf( 0, 0)
2363 mcf( 4, 0)
2364 mcf( 8, 0)
2365 mcf(12, 0)
2366 mcf( 0, 4)
2367 mcf( 4, 4)
2368 mcf( 8, 4)
2369 mcf(12, 4)
2370 mcf( 0, 8)
2371 mcf( 4, 8)
2372 mcf( 8, 8)
2373 mcf(12, 8)
2374 mcf( 0,12)
2375 mcf( 4,12)
2376 mcf( 8,12)
2377 mcf(12,12)
2378
2379#define mcfh(dx,dy)\
2380 s->dsp.put_pixels_tab [0][dy/4+dx/8]=\
2381 s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\
2382 mc_block_hpel ## dx ## dy;
2383
2384 mcfh(0, 0)
2385 mcfh(8, 0)
2386 mcfh(0, 8)
2387 mcfh(8, 8)
2388
2389 dec= s->spatial_decomposition_count= 5;
2390 s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type
2391
2392 s->chroma_h_shift= 1; //FIXME XXX
2393 s->chroma_v_shift= 1;
2394
2395// dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift);
2396
155ec6ed
MN		 2397 width= s->avctx->width;
2398 height= s->avctx->height;
2399
2400 s->spatial_dwt_buffer= av_mallocz(width*height*sizeof(DWTELEM));
2401 s->pred_buffer= av_mallocz(width*height*sizeof(DWTELEM));
791e7b83
MN		 2402
2403 s->mv_scale= (s->avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4;
155ec6ed 2404 s->block_max_depth= (s->avctx->flags & CODEC_FLAG_4MV) ? 1 : 0;
791e7b83
MN		 2405
2406 for(plane_index=0; plane_index<3; plane_index++){
2407 int w= s->avctx->width;
2408 int h= s->avctx->height;
2409
2410 if(plane_index){
2411 w>>= s->chroma_h_shift;
2412 h>>= s->chroma_v_shift;
2413 }
2414 s->plane[plane_index].width = w;
2415 s->plane[plane_index].height= h;
3bb9f096 2416//av_log(NULL, AV_LOG_DEBUG, "%d %d\n", w, h);
791e7b83
MN		 2417 for(level=s->spatial_decomposition_count-1; level>=0; level--){
2418 for(orientation=level ? 1 : 0; orientation<4; orientation++){
2419 SubBand *b= &s->plane[plane_index].band[level][orientation];
2420
2421 b->buf= s->spatial_dwt_buffer;
2422 b->level= level;
2423 b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level);
2424 b->width = (w + !(orientation&1))>>1;
2425 b->height= (h + !(orientation>1))>>1;
2426
2427 if(orientation&1) b->buf += (w+1)>>1;
2428 if(orientation>1) b->buf += b->stride>>1;
2429
2430 if(level)
2431 b->parent= &s->plane[plane_index].band[level-1][orientation];
0cea8a03
MN		 2432 b->x = av_mallocz(((b->width+1) * b->height+1)*sizeof(int16_t));
2433 b->coeff= av_mallocz(((b->width+1) * b->height+1)*sizeof(DWTELEM));
791e7b83
MN		 2434 }
2435 w= (w+1)>>1;
2436 h= (h+1)>>1;
2437 }
2438 }
2439
791e7b83
MN		 2440 reset_contexts(s);
2441/*
2442 width= s->width= avctx->width;
2443 height= s->height= avctx->height;
2444
2445 assert(width && height);
2446*/
2447 s->avctx->get_buffer(s->avctx, &s->mconly_picture);
2448
2449 return 0;
2450}
2451
2452
2453static void calculate_vissual_weight(SnowContext *s, Plane *p){
2454 int width = p->width;
2455 int height= p->height;
39c61bbb 2456 int level, orientation, x, y;
791e7b83
MN		 2457
2458 for(level=0; level<s->spatial_decomposition_count; level++){
2459 for(orientation=level ? 1 : 0; orientation<4; orientation++){
2460 SubBand *b= &p->band[level][orientation];
2461 DWTELEM *buf= b->buf;
2462 int64_t error=0;
2463
2464 memset(s->spatial_dwt_buffer, 0, sizeof(int)*width*height);
2465 buf[b->width/2 + b->height/2*b->stride]= 256*256;
46c281e8 2466 ff_spatial_idwt(s->spatial_dwt_buffer, width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
791e7b83
MN		 2467 for(y=0; y<height; y++){
2468 for(x=0; x<width; x++){
2469 int64_t d= s->spatial_dwt_buffer[x + y*width];
2470 error += d*d;
2471 }
2472 }
2473
2474 b->qlog= (int)(log(352256.0/sqrt(error)) / log(pow(2.0, 1.0/QROOT))+0.5);
46c281e8 2475// av_log(NULL, AV_LOG_DEBUG, "%d %d %d\n", level, orientation, b->qlog/*, sqrt(error)*/);
791e7b83
MN		 2476 }
2477 }
2478}
2479
2480static int encode_init(AVCodecContext *avctx)
2481{
2482 SnowContext *s = avctx->priv_data;
39c61bbb 2483 int plane_index;
791e7b83 2484
2ff9ff5b
MN		 2485 if(avctx->strict_std_compliance >= 0){
2486 av_log(avctx, AV_LOG_ERROR, "this codec is under development, files encoded with it wont be decodeable with future versions!!!\n"
2487 "use vstrict=-1 to use it anyway\n");
2488 return -1;
2489 }
2490
791e7b83 2491 common_init(avctx);
155ec6ed 2492 alloc_blocks(s);
791e7b83
MN		 2493
2494 s->version=0;
2495
2496 s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t));
2497 s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
2498 s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
791e7b83
MN		 2499 h263_encode_init(&s->m); //mv_penalty
2500
2501 for(plane_index=0; plane_index<3; plane_index++){
2502 calculate_vissual_weight(s, &s->plane[plane_index]);
2503 }
2504
2505
2506 avctx->coded_frame= &s->current_picture;
2507 switch(avctx->pix_fmt){
2508// case PIX_FMT_YUV444P:
2509// case PIX_FMT_YUV422P:
2510 case PIX_FMT_YUV420P:
2511 case PIX_FMT_GRAY8:
2512// case PIX_FMT_YUV411P:
2513// case PIX_FMT_YUV410P:
2514 s->colorspace_type= 0;
2515 break;
2516/* case PIX_FMT_RGBA32:
2517 s->colorspace= 1;
2518 break;*/
2519 default:
2520 av_log(avctx, AV_LOG_ERROR, "format not supported\n");
2521 return -1;
2522 }
2523// avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift);
2524 s->chroma_h_shift= 1;
2525 s->chroma_v_shift= 1;
2526 return 0;
2527}
2528
2529static int frame_start(SnowContext *s){
2530 AVFrame tmp;
64886072
MN		 2531 int w= s->avctx->width; //FIXME round up to x16 ?
2532 int h= s->avctx->height;
791e7b83 2533
64886072
MN		 2534 if(s->current_picture.data[0]){
2535 draw_edges(s->current_picture.data[0], s->current_picture.linesize[0], w , h , EDGE_WIDTH );
2536 draw_edges(s->current_picture.data[1], s->current_picture.linesize[1], w>>1, h>>1, EDGE_WIDTH/2);
2537 draw_edges(s->current_picture.data[2], s->current_picture.linesize[2], w>>1, h>>1, EDGE_WIDTH/2);
2538 }
2539
791e7b83
MN		 2540 tmp= s->last_picture;
2541 s->last_picture= s->current_picture;
2542 s->current_picture= tmp;
2543
2544 s->current_picture.reference= 1;
2545 if(s->avctx->get_buffer(s->avctx, &s->current_picture) < 0){
2546 av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
2547 return -1;
2548 }
2549
2550 return 0;
2551}
2552
2553static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
2554 SnowContext *s = avctx->priv_data;
2555 CABACContext * const c= &s->c;
2556 AVFrame *pict = data;
2557 const int width= s->avctx->width;
2558 const int height= s->avctx->height;
39c61bbb 2559 int level, orientation, plane_index;
791e7b83 2560
791e7b83
MN		 2561 ff_init_cabac_encoder(c, buf, buf_size);
2562 ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64);
2563
2564 s->input_picture = *pict;
2565
791e7b83
MN		 2566 s->keyframe=avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0;
2567 pict->pict_type= s->keyframe ? FF_I_TYPE : FF_P_TYPE;
2568
93fbdb5a
MN		 2569 if(pict->quality){
2570 s->qlog= rint(QROOT*log(pict->quality / (float)FF_QP2LAMBDA)/log(2));
2571 //<64 >60
2572 s->qlog += 61;
2573 }else{
2574 s->qlog= LOSSLESS_QLOG;
2575 }
791e7b83 2576
791e7b83 2577 frame_start(s);
19aa028d 2578 s->current_picture.key_frame= s->keyframe;
791e7b83
MN		 2579
2580 if(pict->pict_type == P_TYPE){
2581 int block_width = (width +15)>>4;
2582 int block_height= (height+15)>>4;
2583 int stride= s->current_picture.linesize[0];
791e7b83
MN		 2584
2585 assert(s->current_picture.data[0]);
2586 assert(s->last_picture.data[0]);
2587
2588 s->m.avctx= s->avctx;
2589 s->m.current_picture.data[0]= s->current_picture.data[0];
2590 s->m. last_picture.data[0]= s-> last_picture.data[0];
2591 s->m. new_picture.data[0]= s-> input_picture.data[0];
2592 s->m.current_picture_ptr= &s->m.current_picture;
2593 s->m. last_picture_ptr= &s->m. last_picture;
2594 s->m.linesize=
2595 s->m. last_picture.linesize[0]=
2596 s->m. new_picture.linesize[0]=
2597 s->m.current_picture.linesize[0]= stride;
155ec6ed 2598 s->m.uvlinesize= s->current_picture.linesize[1];
791e7b83
MN		 2599 s->m.width = width;
2600 s->m.height= height;
2601 s->m.mb_width = block_width;
2602 s->m.mb_height= block_height;
2603 s->m.mb_stride= s->m.mb_width+1;
2604 s->m.b8_stride= 2*s->m.mb_width+1;
2605 s->m.f_code=1;
2606 s->m.pict_type= pict->pict_type;
2607 s->m.me_method= s->avctx->me_method;
2608 s->m.me.scene_change_score=0;
2609 s->m.flags= s->avctx->flags;
2610 s->m.quarter_sample= (s->avctx->flags & CODEC_FLAG_QPEL)!=0;
2611 s->m.out_format= FMT_H263;
2612 s->m.unrestricted_mv= 1;
2613
155ec6ed 2614 s->lambda = s->m.lambda= pict->quality * 3/2; //FIXME bug somewhere else
791e7b83 2615 s->m.qscale= (s->m.lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
155ec6ed 2616 s->lambda2= s->m.lambda2= (s->m.lambda*s->m.lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
791e7b83 2617
791e7b83
MN		 2618 s->m.dsp= s->dsp; //move
2619 ff_init_me(&s->m);
791e7b83 2620 }
791e7b83 2621
155ec6ed
MN		 2622redo_frame:
2623
791e7b83
MN		 2624 s->qbias= pict->pict_type == P_TYPE ? 2 : 0;
2625
2626 encode_header(s);
155ec6ed
MN		 2627 encode_blocks(s);
2628
791e7b83
MN		 2629 for(plane_index=0; plane_index<3; plane_index++){
2630 Plane *p= &s->plane[plane_index];
2631 int w= p->width;
2632 int h= p->height;
2633 int x, y;
39c61bbb 2634// int bits= put_bits_count(&s->c.pb);
791e7b83
MN		 2635
2636 //FIXME optimize
791e7b83
MN		 2637 if(pict->data[plane_index]) //FIXME gray hack
2638 for(y=0; y<h; y++){
2639 for(x=0; x<w; x++){
2640 s->spatial_dwt_buffer[y*w + x]= pict->data[plane_index][y*pict->linesize[plane_index] + x]<<8;
2641 }
2642 }
2643 predict_plane(s, s->spatial_dwt_buffer, plane_index, 0);
155ec6ed
MN		 2644
2645 if( plane_index==0
2646 && pict->pict_type == P_TYPE
2647 && s->m.me.scene_change_score > s->avctx->scenechange_threshold){
2648 ff_init_cabac_encoder(c, buf, buf_size);
2649 ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64);
2650 pict->pict_type= FF_I_TYPE;
2651 s->keyframe=1;
2652 reset_contexts(s);
2653 goto redo_frame;
2654 }
2655
93fbdb5a
MN		 2656 if(s->qlog == LOSSLESS_QLOG){
2657 for(y=0; y<h; y++){
2658 for(x=0; x<w; x++){
2659 s->spatial_dwt_buffer[y*w + x]= (s->spatial_dwt_buffer[y*w + x] + 127)>>8;
2660 }
2661 }
2662 }
791e7b83 2663
46c281e8 2664 ff_spatial_dwt(s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
93fbdb5a 2665
791e7b83
MN		 2666 for(level=0; level<s->spatial_decomposition_count; level++){
2667 for(orientation=level ? 1 : 0; orientation<4; orientation++){
2668 SubBand *b= &p->band[level][orientation];
2669
2670 quantize(s, b, b->buf, b->stride, s->qbias);
2671 if(orientation==0)
2672 decorrelate(s, b, b->buf, b->stride, pict->pict_type == P_TYPE, 0);
2673 encode_subband(s, b, b->buf, b->parent ? b->parent->buf : NULL, b->stride, orientation);
2674 assert(b->parent==NULL || b->parent->stride == b->stride*2);
2675 if(orientation==0)
2676 correlate(s, b, b->buf, b->stride, 1, 0);
2677 }
2678 }
2679// av_log(NULL, AV_LOG_DEBUG, "plane:%d bits:%d\n", plane_index, put_bits_count(&s->c.pb) - bits);
2680
2681 for(level=0; level<s->spatial_decomposition_count; level++){
2682 for(orientation=level ? 1 : 0; orientation<4; orientation++){
2683 SubBand *b= &p->band[level][orientation];
2684
2685 dequantize(s, b, b->buf, b->stride);
2686 }
2687 }
93fbdb5a 2688
46c281e8 2689 ff_spatial_idwt(s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
93fbdb5a
MN		 2690 if(s->qlog == LOSSLESS_QLOG){
2691 for(y=0; y<h; y++){
2692 for(x=0; x<w; x++){
2693 s->spatial_dwt_buffer[y*w + x]<<=8;
2694 }
2695 }
2696 }
791e7b83 2697 predict_plane(s, s->spatial_dwt_buffer, plane_index, 1);
791e7b83
MN		 2698 //FIXME optimize
2699 for(y=0; y<h; y++){
2700 for(x=0; x<w; x++){
2701 int v= (s->spatial_dwt_buffer[y*w + x]+128)>>8;
2702 if(v&(~255)) v= ~(v>>31);
2703 s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]= v;
2704 }
2705 }
2706 if(s->avctx->flags&CODEC_FLAG_PSNR){
2707 int64_t error= 0;
2708
2709 if(pict->data[plane_index]) //FIXME gray hack
2710 for(y=0; y<h; y++){
2711 for(x=0; x<w; x++){
93fbdb5a 2712 int d= s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x] - pict->data[plane_index][y*pict->linesize[plane_index] + x];
791e7b83
MN		 2713 error += d*d;
2714 }
2715 }
791e7b83
MN		 2716 s->avctx->error[plane_index] += error;
2717 s->avctx->error[3] += error;
2718 }
2719 }
2720
2721 if(s->last_picture.data[0])
2722 avctx->release_buffer(avctx, &s->last_picture);
2723
2724 emms_c();
2725
2726 return put_cabac_terminate(c, 1);
2727}
2728
2729static void common_end(SnowContext *s){
7b49c309
MN		 2730 int plane_index, level, orientation;
2731
791e7b83 2732 av_freep(&s->spatial_dwt_buffer);
791e7b83
MN		 2733
2734 av_freep(&s->m.me.scratchpad);
2735 av_freep(&s->m.me.map);
2736 av_freep(&s->m.me.score_map);
155ec6ed
MN		 2737
2738 av_freep(&s->block);
7b49c309
MN		 2739
2740 for(plane_index=0; plane_index<3; plane_index++){
2741 for(level=s->spatial_decomposition_count-1; level>=0; level--){
2742 for(orientation=level ? 1 : 0; orientation<4; orientation++){
2743 SubBand *b= &s->plane[plane_index].band[level][orientation];
2744
2745 av_freep(&b->x);
0cea8a03 2746 av_freep(&b->coeff);
7b49c309
MN		 2747 }
2748 }
2749 }
791e7b83
MN		 2750}
2751
2752static int encode_end(AVCodecContext *avctx)
2753{
2754 SnowContext *s = avctx->priv_data;
2755
2756 common_end(s);
2757
2758 return 0;
2759}
2760
2761static int decode_init(AVCodecContext *avctx)
2762{
2763// SnowContext *s = avctx->priv_data;
2764
2765 common_init(avctx);
2766
2767 return 0;
2768}
2769
2770static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size){
2771 SnowContext *s = avctx->priv_data;
2772 CABACContext * const c= &s->c;
791e7b83
MN		 2773 int bytes_read;
2774 AVFrame *picture = data;
39c61bbb 2775 int level, orientation, plane_index;
791e7b83
MN		 2776
2777
2778 /* no supplementary picture */
2779 if (buf_size == 0)
2780 return 0;
2781
2782 ff_init_cabac_decoder(c, buf, buf_size);
2783 ff_init_cabac_states(c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64);
2784
791e7b83
MN		 2785 s->current_picture.pict_type= FF_I_TYPE; //FIXME I vs. P
2786 decode_header(s);
155ec6ed 2787 if(!s->block) alloc_blocks(s);
791e7b83
MN		 2788
2789 frame_start(s);
2790 //keyframe flag dupliaction mess FIXME
2791 if(avctx->debug&FF_DEBUG_PICT_INFO)
2792 av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog);
2793
155ec6ed 2794 decode_blocks(s);
791e7b83
MN		 2795
2796 for(plane_index=0; plane_index<3; plane_index++){
2797 Plane *p= &s->plane[plane_index];
2798 int w= p->width;
2799 int h= p->height;
2800 int x, y;
2801
2802if(s->avctx->debug&2048){
2803 memset(s->spatial_dwt_buffer, 0, sizeof(DWTELEM)*w*h);
2804 predict_plane(s, s->spatial_dwt_buffer, plane_index, 1);
2805
2806 for(y=0; y<h; y++){
2807 for(x=0; x<w; x++){
2808 int v= (s->spatial_dwt_buffer[y*w + x]+128)>>8;
2809 if(v&(~255)) v= ~(v>>31);
2810 s->mconly_picture.data[plane_index][y*s->mconly_picture.linesize[plane_index] + x]= v;
2811 }
2812 }
2813}
2814 for(level=0; level<s->spatial_decomposition_count; level++){
2815 for(orientation=level ? 1 : 0; orientation<4; orientation++){
2816 SubBand *b= &p->band[level][orientation];
2817
2818 decode_subband(s, b, b->buf, b->parent ? b->parent->buf : NULL, b->stride, orientation);
ea7d9cd4 2819 if(orientation==0){
791e7b83 2820 correlate(s, b, b->buf, b->stride, 1, 0);
ea7d9cd4
MN		 2821 dequantize(s, b, b->buf, b->stride);
2822 assert(b->buf == s->spatial_dwt_buffer);
2823 }
791e7b83
MN		 2824 }
2825 }
2826
46c281e8 2827 ff_spatial_idwt(s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
93fbdb5a
MN		 2828 if(s->qlog == LOSSLESS_QLOG){
2829 for(y=0; y<h; y++){
2830 for(x=0; x<w; x++){
2831 s->spatial_dwt_buffer[y*w + x]<<=8;
2832 }
2833 }
2834 }
791e7b83 2835 predict_plane(s, s->spatial_dwt_buffer, plane_index, 1);
791e7b83
MN		 2836
2837 //FIXME optimize
2838 for(y=0; y<h; y++){
2839 for(x=0; x<w; x++){
2840 int v= (s->spatial_dwt_buffer[y*w + x]+128)>>8;
2841 if(v&(~255)) v= ~(v>>31);
2842 s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]= v;
2843 }
2844 }
2845 }
2846
2847 emms_c();
2848
2849 if(s->last_picture.data[0])
2850 avctx->release_buffer(avctx, &s->last_picture);
2851
2852if(!(s->avctx->debug&2048))
2853 *picture= s->current_picture;
2854else
2855 *picture= s->mconly_picture;
2856
2857 *data_size = sizeof(AVFrame);
2858
2859 bytes_read= get_cabac_terminate(c);
2860 if(bytes_read ==0) av_log(s->avctx, AV_LOG_ERROR, "error at end of frame\n");
2861
2862 return bytes_read;
2863}
2864
2865static int decode_end(AVCodecContext *avctx)
2866{
2867 SnowContext *s = avctx->priv_data;
2868
2869 common_end(s);
2870
2871 return 0;
2872}
2873
2874AVCodec snow_decoder = {
2875 "snow",
2876 CODEC_TYPE_VIDEO,
2877 CODEC_ID_SNOW,
2878 sizeof(SnowContext),
2879 decode_init,
2880 NULL,
2881 decode_end,
2882 decode_frame,
2883 0 /*CODEC_CAP_DR1*/ /*| CODEC_CAP_DRAW_HORIZ_BAND*/,
2884 NULL
2885};
2886
2887AVCodec snow_encoder = {
2888 "snow",
2889 CODEC_TYPE_VIDEO,
2890 CODEC_ID_SNOW,
2891 sizeof(SnowContext),
2892 encode_init,
2893 encode_frame,
2894 encode_end,
2895};
2896
2897
2898#if 0
2899#undef malloc
2900#undef free
2901#undef printf
2902
2903int main(){
2904 int width=256;
2905 int height=256;
2906 int buffer[2][width*height];
2907 SnowContext s;
2908 int i;
2909 s.spatial_decomposition_count=6;
2910 s.spatial_decomposition_type=1;
2911
2912 printf("testing 5/3 DWT\n");
2913 for(i=0; i<width*height; i++)
2914 buffer[0][i]= buffer[1][i]= random()%54321 - 12345;
2915
46c281e8
MN		 2916 ff_spatial_dwt(buffer[0], width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
2917 ff_spatial_idwt(buffer[0], width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
791e7b83
MN		 2918
2919 for(i=0; i<width*height; i++)
2920 if(buffer[0][i]!= buffer[1][i]) printf("fsck: %d %d %d\n",i, buffer[0][i], buffer[1][i]);
2921
2922 printf("testing 9/7 DWT\n");
2923 s.spatial_decomposition_type=0;
2924 for(i=0; i<width*height; i++)
2925 buffer[0][i]= buffer[1][i]= random()%54321 - 12345;
2926
46c281e8
MN		 2927 ff_spatial_dwt(buffer[0], width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
2928 ff_spatial_idwt(buffer[0], width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
791e7b83
MN		 2929
2930 for(i=0; i<width*height; i++)
2931 if(buffer[0][i]!= buffer[1][i]) printf("fsck: %d %d %d\n",i, buffer[0][i], buffer[1][i]);
2932
2933 printf("testing AC coder\n");
2934 memset(s.header_state, 0, sizeof(s.header_state));
2935 ff_init_cabac_encoder(&s.c, buffer[0], 256*256);
2936 ff_init_cabac_states(&s.c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64);
2937
2938 for(i=-256; i<256; i++){
2939START_TIMER
2940 put_symbol(&s.c, s.header_state, i*i*i/3*ABS(i), 1);
2941STOP_TIMER("put_symbol")
2942 }
2943 put_cabac_terminate(&s.c, 1);
2944
2945 memset(s.header_state, 0, sizeof(s.header_state));
2946 ff_init_cabac_decoder(&s.c, buffer[0], 256*256);
2947 ff_init_cabac_states(&s.c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64);
2948
2949 for(i=-256; i<256; i++){
2950 int j;
2951START_TIMER
2952 j= get_symbol(&s.c, s.header_state, 1);
2953STOP_TIMER("get_symbol")
2954 if(j!=i*i*i/3*ABS(i)) printf("fsck: %d != %d\n", i, j);
2955 }
2956{
2957int level, orientation, x, y;
2958int64_t errors[8][4];
2959int64_t g=0;
2960
2961 memset(errors, 0, sizeof(errors));
2962 s.spatial_decomposition_count=3;
2963 s.spatial_decomposition_type=0;
2964 for(level=0; level<s.spatial_decomposition_count; level++){
2965 for(orientation=level ? 1 : 0; orientation<4; orientation++){
2966 int w= width >> (s.spatial_decomposition_count-level);
2967 int h= height >> (s.spatial_decomposition_count-level);
2968 int stride= width << (s.spatial_decomposition_count-level);
2969 DWTELEM *buf= buffer[0];
2970 int64_t error=0;
2971
2972 if(orientation&1) buf+=w;
2973 if(orientation>1) buf+=stride>>1;
2974
2975 memset(buffer[0], 0, sizeof(int)*width*height);
2976 buf[w/2 + h/2*stride]= 256*256;
46c281e8 2977 ff_spatial_idwt(buffer[0], width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
791e7b83
MN		 2978 for(y=0; y<height; y++){
2979 for(x=0; x<width; x++){
2980 int64_t d= buffer[0][x + y*width];
2981 error += d*d;
2982 if(ABS(width/2-x)<9 && ABS(height/2-y)<9 && level==2) printf("%8lld ", d);
2983 }
2984 if(ABS(height/2-y)<9 && level==2) printf("\n");
2985 }
2986 error= (int)(sqrt(error)+0.5);
2987 errors[level][orientation]= error;
2988 if(g) g=ff_gcd(g, error);
2989 else g= error;
2990 }
2991 }
2992 printf("static int const visual_weight[][4]={\n");
2993 for(level=0; level<s.spatial_decomposition_count; level++){
2994 printf(" {");
2995 for(orientation=0; orientation<4; orientation++){
2996 printf("%8lld,", errors[level][orientation]/g);
2997 }
2998 printf("},\n");
2999 }
3000 printf("};\n");
3001 {
3002 int level=2;
3003 int orientation=3;
3004 int w= width >> (s.spatial_decomposition_count-level);
3005 int h= height >> (s.spatial_decomposition_count-level);
3006 int stride= width << (s.spatial_decomposition_count-level);
3007 DWTELEM *buf= buffer[0];
3008 int64_t error=0;
3009
3010 buf+=w;
3011 buf+=stride>>1;
3012
3013 memset(buffer[0], 0, sizeof(int)*width*height);
3014#if 1
3015 for(y=0; y<height; y++){
3016 for(x=0; x<width; x++){
3017 int tab[4]={0,2,3,1};
3018 buffer[0][x+width*y]= 256*256*tab[(x&1) + 2*(y&1)];
3019 }
3020 }
46c281e8 3021 ff_spatial_dwt(buffer[0], width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
791e7b83
MN		 3022#else
3023 for(y=0; y<h; y++){
3024 for(x=0; x<w; x++){
3025 buf[x + y*stride ]=169;
3026 buf[x + y*stride-w]=64;
3027 }
3028 }
46c281e8 3029 ff_spatial_idwt(buffer[0], width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count);
791e7b83
MN		 3030#endif
3031 for(y=0; y<height; y++){
3032 for(x=0; x<width; x++){
3033 int64_t d= buffer[0][x + y*width];
3034 error += d*d;
3035 if(ABS(width/2-x)<9 && ABS(height/2-y)<9) printf("%8lld ", d);
3036 }
3037 if(ABS(height/2-y)<9) printf("\n");
3038 }
3039 }
3040
3041}
3042 return 0;
3043}
3044#endif
3045
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