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1 : | chl | 1.12 | /***************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * - Motion Compensation module - | ||
5 : | * | ||
6 : | edgomez | 1.14 | * Copyright(C) 2002 Peter Ross <pross@xvid.org> |
7 : | chl | 1.12 | * |
8 : | edgomez | 1.15 | * This file is part of XviD, a free MPEG-4 video encoder/decoder |
9 : | chl | 1.12 | * |
10 : | edgomez | 1.15 | * XviD is free software; you can redistribute it and/or modify it |
11 : | * under the terms of the GNU General Public License as published by | ||
12 : | chl | 1.12 | * the Free Software Foundation; either version 2 of the License, or |
13 : | * (at your option) any later version. | ||
14 : | * | ||
15 : | * This program is distributed in the hope that it will be useful, | ||
16 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 : | * GNU General Public License for more details. | ||
19 : | * | ||
20 : | * You should have received a copy of the GNU General Public License | ||
21 : | * along with this program; if not, write to the Free Software | ||
22 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
23 : | edgomez | 1.15 | * |
24 : | * Under section 8 of the GNU General Public License, the copyright | ||
25 : | * holders of XVID explicitly forbid distribution in the following | ||
26 : | * countries: | ||
27 : | * | ||
28 : | * - Japan | ||
29 : | * - United States of America | ||
30 : | * | ||
31 : | * Linking XviD statically or dynamically with other modules is making a | ||
32 : | * combined work based on XviD. Thus, the terms and conditions of the | ||
33 : | * GNU General Public License cover the whole combination. | ||
34 : | * | ||
35 : | * As a special exception, the copyright holders of XviD give you | ||
36 : | * permission to link XviD with independent modules that communicate with | ||
37 : | * XviD solely through the VFW1.1 and DShow interfaces, regardless of the | ||
38 : | * license terms of these independent modules, and to copy and distribute | ||
39 : | * the resulting combined work under terms of your choice, provided that | ||
40 : | * every copy of the combined work is accompanied by a complete copy of | ||
41 : | * the source code of XviD (the version of XviD used to produce the | ||
42 : | * combined work), being distributed under the terms of the GNU General | ||
43 : | * Public License plus this exception. An independent module is a module | ||
44 : | * which is not derived from or based on XviD. | ||
45 : | * | ||
46 : | * Note that people who make modified versions of XviD are not obligated | ||
47 : | * to grant this special exception for their modified versions; it is | ||
48 : | * their choice whether to do so. The GNU General Public License gives | ||
49 : | * permission to release a modified version without this exception; this | ||
50 : | * exception also makes it possible to release a modified version which | ||
51 : | * carries forward this exception. | ||
52 : | * | ||
53 : | * $Id$ | ||
54 : | chl | 1.12 | * |
55 : | *************************************************************************/ | ||
56 : | suxen_drol | 1.3 | |
57 : | Isibaar | 1.1 | #include "../encoder.h" |
58 : | #include "../utils/mbfunctions.h" | ||
59 : | #include "../image/interpolate8x8.h" | ||
60 : | #include "../utils/timer.h" | ||
61 : | suxen_drol | 1.3 | #include "motion.h" |
62 : | Isibaar | 1.1 | |
63 : | #define ABS(X) (((X)>0)?(X):-(X)) | ||
64 : | #define SIGN(X) (((X)>0)?1:-1) | ||
65 : | |||
66 : | edgomez | 1.5 | static __inline void |
67 : | compensate8x8_halfpel(int16_t * const dct_codes, | ||
68 : | uint8_t * const cur, | ||
69 : | const uint8_t * const ref, | ||
70 : | const uint8_t * const refh, | ||
71 : | const uint8_t * const refv, | ||
72 : | const uint8_t * const refhv, | ||
73 : | const uint32_t x, | ||
74 : | const uint32_t y, | ||
75 : | const int32_t dx, | ||
76 : | const int dy, | ||
77 : | const uint32_t stride) | ||
78 : | Isibaar | 1.1 | { |
79 : | edgomez | 1.5 | int32_t ddx, ddy; |
80 : | Isibaar | 1.1 | |
81 : | edgomez | 1.5 | switch (((dx & 1) << 1) + (dy & 1)) // ((dx%2)?2:0)+((dy%2)?1:0) |
82 : | { | ||
83 : | case 0: | ||
84 : | ddx = dx / 2; | ||
85 : | ddy = dy / 2; | ||
86 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
87 : | Isibaar | 1.6 | ref + (int) ((y + ddy) * stride + x + ddx), stride); |
88 : | Isibaar | 1.1 | break; |
89 : | |||
90 : | edgomez | 1.5 | case 1: |
91 : | ddx = dx / 2; | ||
92 : | ddy = (dy - 1) / 2; | ||
93 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
94 : | Isibaar | 1.6 | refv + (int) ((y + ddy) * stride + x + ddx), stride); |
95 : | Isibaar | 1.1 | break; |
96 : | |||
97 : | edgomez | 1.5 | case 2: |
98 : | ddx = (dx - 1) / 2; | ||
99 : | ddy = dy / 2; | ||
100 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
101 : | Isibaar | 1.6 | refh + (int) ((y + ddy) * stride + x + ddx), stride); |
102 : | Isibaar | 1.1 | break; |
103 : | |||
104 : | edgomez | 1.5 | default: // case 3: |
105 : | ddx = (dx - 1) / 2; | ||
106 : | ddy = (dy - 1) / 2; | ||
107 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
108 : | Isibaar | 1.6 | refhv + (int) ((y + ddy) * stride + x + ddx), stride); |
109 : | Isibaar | 1.1 | break; |
110 : | edgomez | 1.5 | } |
111 : | Isibaar | 1.1 | } |
112 : | |||
113 : | |||
114 : | |||
115 : | edgomez | 1.5 | void |
116 : | MBMotionCompensation(MACROBLOCK * const mb, | ||
117 : | const uint32_t i, | ||
118 : | const uint32_t j, | ||
119 : | const IMAGE * const ref, | ||
120 : | const IMAGE * const refh, | ||
121 : | const IMAGE * const refv, | ||
122 : | const IMAGE * const refhv, | ||
123 : | IMAGE * const cur, | ||
124 : | int16_t * dct_codes, | ||
125 : | const uint32_t width, | ||
126 : | const uint32_t height, | ||
127 : | const uint32_t edged_width, | ||
128 : | const uint32_t rounding) | ||
129 : | Isibaar | 1.1 | { |
130 : | static const uint32_t roundtab[16] = | ||
131 : | { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; | ||
132 : | |||
133 : | |||
134 : | edgomez | 1.5 | if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
135 : | Isibaar | 1.1 | int32_t dx = mb->mvs[0].x; |
136 : | int32_t dy = mb->mvs[0].y; | ||
137 : | |||
138 : | edgomez | 1.5 | compensate8x8_halfpel(&dct_codes[0 * 64], cur->y, ref->y, refh->y, |
139 : | refv->y, refhv->y, 16 * i, 16 * j, dx, dy, | ||
140 : | edged_width); | ||
141 : | compensate8x8_halfpel(&dct_codes[1 * 64], cur->y, ref->y, refh->y, | ||
142 : | refv->y, refhv->y, 16 * i + 8, 16 * j, dx, dy, | ||
143 : | edged_width); | ||
144 : | compensate8x8_halfpel(&dct_codes[2 * 64], cur->y, ref->y, refh->y, | ||
145 : | refv->y, refhv->y, 16 * i, 16 * j + 8, dx, dy, | ||
146 : | edged_width); | ||
147 : | compensate8x8_halfpel(&dct_codes[3 * 64], cur->y, ref->y, refh->y, | ||
148 : | refv->y, refhv->y, 16 * i + 8, 16 * j + 8, dx, | ||
149 : | dy, edged_width); | ||
150 : | Isibaar | 1.1 | |
151 : | dx = (dx & 3) ? (dx >> 1) | 1 : dx / 2; | ||
152 : | dy = (dy & 3) ? (dy >> 1) | 1 : dy / 2; | ||
153 : | |||
154 : | suxen_drol | 1.4 | /* uv-image-based compensation */ |
155 : | chl | 1.13 | |
156 : | edgomez | 1.5 | interpolate8x8_switch(refv->u, ref->u, 8 * i, 8 * j, dx, dy, |
157 : | edged_width / 2, rounding); | ||
158 : | transfer_8to16sub(&dct_codes[4 * 64], | ||
159 : | cur->u + 8 * j * edged_width / 2 + 8 * i, | ||
160 : | refv->u + 8 * j * edged_width / 2 + 8 * i, | ||
161 : | edged_width / 2); | ||
162 : | |||
163 : | interpolate8x8_switch(refv->v, ref->v, 8 * i, 8 * j, dx, dy, | ||
164 : | edged_width / 2, rounding); | ||
165 : | transfer_8to16sub(&dct_codes[5 * 64], | ||
166 : | cur->v + 8 * j * edged_width / 2 + 8 * i, | ||
167 : | refv->v + 8 * j * edged_width / 2 + 8 * i, | ||
168 : | edged_width / 2); | ||
169 : | chl | 1.13 | |
170 : | edgomez | 1.5 | } else // mode == MODE_INTER4V |
171 : | Isibaar | 1.1 | { |
172 : | int32_t sum, dx, dy; | ||
173 : | |||
174 : | edgomez | 1.5 | compensate8x8_halfpel(&dct_codes[0 * 64], cur->y, ref->y, refh->y, |
175 : | refv->y, refhv->y, 16 * i, 16 * j, mb->mvs[0].x, | ||
176 : | mb->mvs[0].y, edged_width); | ||
177 : | compensate8x8_halfpel(&dct_codes[1 * 64], cur->y, ref->y, refh->y, | ||
178 : | refv->y, refhv->y, 16 * i + 8, 16 * j, | ||
179 : | mb->mvs[1].x, mb->mvs[1].y, edged_width); | ||
180 : | compensate8x8_halfpel(&dct_codes[2 * 64], cur->y, ref->y, refh->y, | ||
181 : | refv->y, refhv->y, 16 * i, 16 * j + 8, | ||
182 : | mb->mvs[2].x, mb->mvs[2].y, edged_width); | ||
183 : | compensate8x8_halfpel(&dct_codes[3 * 64], cur->y, ref->y, refh->y, | ||
184 : | refv->y, refhv->y, 16 * i + 8, 16 * j + 8, | ||
185 : | mb->mvs[3].x, mb->mvs[3].y, edged_width); | ||
186 : | Isibaar | 1.1 | |
187 : | sum = mb->mvs[0].x + mb->mvs[1].x + mb->mvs[2].x + mb->mvs[3].x; | ||
188 : | edgomez | 1.5 | dx = (sum ? SIGN(sum) * |
189 : | (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) : 0); | ||
190 : | Isibaar | 1.1 | |
191 : | sum = mb->mvs[0].y + mb->mvs[1].y + mb->mvs[2].y + mb->mvs[3].y; | ||
192 : | edgomez | 1.5 | dy = (sum ? SIGN(sum) * |
193 : | (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) : 0); | ||
194 : | Isibaar | 1.1 | |
195 : | /* uv-block-based compensation */ | ||
196 : | edgomez | 1.5 | interpolate8x8_switch(refv->u, ref->u, 8 * i, 8 * j, dx, dy, |
197 : | edged_width / 2, rounding); | ||
198 : | transfer_8to16sub(&dct_codes[4 * 64], | ||
199 : | cur->u + 8 * j * edged_width / 2 + 8 * i, | ||
200 : | refv->u + 8 * j * edged_width / 2 + 8 * i, | ||
201 : | edged_width / 2); | ||
202 : | |||
203 : | interpolate8x8_switch(refv->v, ref->v, 8 * i, 8 * j, dx, dy, | ||
204 : | edged_width / 2, rounding); | ||
205 : | transfer_8to16sub(&dct_codes[5 * 64], | ||
206 : | cur->v + 8 * j * edged_width / 2 + 8 * i, | ||
207 : | refv->v + 8 * j * edged_width / 2 + 8 * i, | ||
208 : | edged_width / 2); | ||
209 : | suxen_drol | 1.3 | } |
210 : | } |
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