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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 : | * This program is an implementation of a part of one or more MPEG-4 | ||
9 : | * Video tools as specified in ISO/IEC 14496-2 standard. Those intending | ||
10 : | * to use this software module in hardware or software products are | ||
11 : | * advised that its use may infringe existing patents or copyrights, and | ||
12 : | * any such use would be at such party's own risk. The original | ||
13 : | * developer of this software module and his/her company, and subsequent | ||
14 : | * editors and their companies, will have no liability for use of this | ||
15 : | * software or modifications or derivatives thereof. | ||
16 : | * | ||
17 : | * This program is free software; you can redistribute it and/or modify | ||
18 : | * it under the terms of the GNU General Public License as published by | ||
19 : | * the Free Software Foundation; either version 2 of the License, or | ||
20 : | * (at your option) any later version. | ||
21 : | * | ||
22 : | * This program is distributed in the hope that it will be useful, | ||
23 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
24 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
25 : | * GNU General Public License for more details. | ||
26 : | * | ||
27 : | * You should have received a copy of the GNU General Public License | ||
28 : | * along with this program; if not, write to the Free Software | ||
29 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
30 : | * | ||
31 : | *************************************************************************/ | ||
32 : | suxen_drol | 1.3 | |
33 : | Isibaar | 1.1 | #include "../encoder.h" |
34 : | #include "../utils/mbfunctions.h" | ||
35 : | #include "../image/interpolate8x8.h" | ||
36 : | #include "../utils/timer.h" | ||
37 : | suxen_drol | 1.3 | #include "motion.h" |
38 : | Isibaar | 1.1 | |
39 : | #define ABS(X) (((X)>0)?(X):-(X)) | ||
40 : | #define SIGN(X) (((X)>0)?1:-1) | ||
41 : | |||
42 : | edgomez | 1.5 | static __inline void |
43 : | compensate8x8_halfpel(int16_t * const dct_codes, | ||
44 : | uint8_t * const cur, | ||
45 : | const uint8_t * const ref, | ||
46 : | const uint8_t * const refh, | ||
47 : | const uint8_t * const refv, | ||
48 : | const uint8_t * const refhv, | ||
49 : | const uint32_t x, | ||
50 : | const uint32_t y, | ||
51 : | const int32_t dx, | ||
52 : | const int dy, | ||
53 : | const uint32_t stride) | ||
54 : | Isibaar | 1.1 | { |
55 : | edgomez | 1.5 | int32_t ddx, ddy; |
56 : | Isibaar | 1.1 | |
57 : | edgomez | 1.5 | switch (((dx & 1) << 1) + (dy & 1)) // ((dx%2)?2:0)+((dy%2)?1:0) |
58 : | { | ||
59 : | case 0: | ||
60 : | ddx = dx / 2; | ||
61 : | ddy = dy / 2; | ||
62 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
63 : | Isibaar | 1.6 | ref + (int) ((y + ddy) * stride + x + ddx), stride); |
64 : | Isibaar | 1.1 | break; |
65 : | |||
66 : | edgomez | 1.5 | case 1: |
67 : | ddx = dx / 2; | ||
68 : | ddy = (dy - 1) / 2; | ||
69 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
70 : | Isibaar | 1.6 | refv + (int) ((y + ddy) * stride + x + ddx), stride); |
71 : | Isibaar | 1.1 | break; |
72 : | |||
73 : | edgomez | 1.5 | case 2: |
74 : | ddx = (dx - 1) / 2; | ||
75 : | ddy = dy / 2; | ||
76 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
77 : | Isibaar | 1.6 | refh + (int) ((y + ddy) * stride + x + ddx), stride); |
78 : | Isibaar | 1.1 | break; |
79 : | |||
80 : | edgomez | 1.5 | default: // case 3: |
81 : | ddx = (dx - 1) / 2; | ||
82 : | ddy = (dy - 1) / 2; | ||
83 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
84 : | Isibaar | 1.6 | refhv + (int) ((y + ddy) * stride + x + ddx), stride); |
85 : | Isibaar | 1.1 | break; |
86 : | edgomez | 1.5 | } |
87 : | Isibaar | 1.1 | } |
88 : | |||
89 : | |||
90 : | |||
91 : | edgomez | 1.5 | void |
92 : | MBMotionCompensation(MACROBLOCK * const mb, | ||
93 : | const uint32_t i, | ||
94 : | const uint32_t j, | ||
95 : | const IMAGE * const ref, | ||
96 : | const IMAGE * const refh, | ||
97 : | const IMAGE * const refv, | ||
98 : | const IMAGE * const refhv, | ||
99 : | IMAGE * const cur, | ||
100 : | int16_t * dct_codes, | ||
101 : | const uint32_t width, | ||
102 : | const uint32_t height, | ||
103 : | const uint32_t edged_width, | ||
104 : | const uint32_t rounding) | ||
105 : | Isibaar | 1.1 | { |
106 : | static const uint32_t roundtab[16] = | ||
107 : | { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; | ||
108 : | |||
109 : | |||
110 : | edgomez | 1.5 | if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
111 : | Isibaar | 1.1 | int32_t dx = mb->mvs[0].x; |
112 : | int32_t dy = mb->mvs[0].y; | ||
113 : | |||
114 : | edgomez | 1.5 | compensate8x8_halfpel(&dct_codes[0 * 64], cur->y, ref->y, refh->y, |
115 : | refv->y, refhv->y, 16 * i, 16 * j, dx, dy, | ||
116 : | edged_width); | ||
117 : | compensate8x8_halfpel(&dct_codes[1 * 64], cur->y, ref->y, refh->y, | ||
118 : | refv->y, refhv->y, 16 * i + 8, 16 * j, dx, dy, | ||
119 : | edged_width); | ||
120 : | compensate8x8_halfpel(&dct_codes[2 * 64], cur->y, ref->y, refh->y, | ||
121 : | refv->y, refhv->y, 16 * i, 16 * j + 8, dx, dy, | ||
122 : | edged_width); | ||
123 : | compensate8x8_halfpel(&dct_codes[3 * 64], cur->y, ref->y, refh->y, | ||
124 : | refv->y, refhv->y, 16 * i + 8, 16 * j + 8, dx, | ||
125 : | dy, edged_width); | ||
126 : | Isibaar | 1.1 | |
127 : | dx = (dx & 3) ? (dx >> 1) | 1 : dx / 2; | ||
128 : | dy = (dy & 3) ? (dy >> 1) | 1 : dy / 2; | ||
129 : | |||
130 : | suxen_drol | 1.4 | /* uv-image-based compensation */ |
131 : | chl | 1.13 | |
132 : | edgomez | 1.5 | interpolate8x8_switch(refv->u, ref->u, 8 * i, 8 * j, dx, dy, |
133 : | edged_width / 2, rounding); | ||
134 : | transfer_8to16sub(&dct_codes[4 * 64], | ||
135 : | cur->u + 8 * j * edged_width / 2 + 8 * i, | ||
136 : | refv->u + 8 * j * edged_width / 2 + 8 * i, | ||
137 : | edged_width / 2); | ||
138 : | |||
139 : | interpolate8x8_switch(refv->v, ref->v, 8 * i, 8 * j, dx, dy, | ||
140 : | edged_width / 2, rounding); | ||
141 : | transfer_8to16sub(&dct_codes[5 * 64], | ||
142 : | cur->v + 8 * j * edged_width / 2 + 8 * i, | ||
143 : | refv->v + 8 * j * edged_width / 2 + 8 * i, | ||
144 : | edged_width / 2); | ||
145 : | chl | 1.13 | |
146 : | edgomez | 1.5 | } else // mode == MODE_INTER4V |
147 : | Isibaar | 1.1 | { |
148 : | int32_t sum, dx, dy; | ||
149 : | |||
150 : | edgomez | 1.5 | compensate8x8_halfpel(&dct_codes[0 * 64], cur->y, ref->y, refh->y, |
151 : | refv->y, refhv->y, 16 * i, 16 * j, mb->mvs[0].x, | ||
152 : | mb->mvs[0].y, edged_width); | ||
153 : | compensate8x8_halfpel(&dct_codes[1 * 64], cur->y, ref->y, refh->y, | ||
154 : | refv->y, refhv->y, 16 * i + 8, 16 * j, | ||
155 : | mb->mvs[1].x, mb->mvs[1].y, edged_width); | ||
156 : | compensate8x8_halfpel(&dct_codes[2 * 64], cur->y, ref->y, refh->y, | ||
157 : | refv->y, refhv->y, 16 * i, 16 * j + 8, | ||
158 : | mb->mvs[2].x, mb->mvs[2].y, edged_width); | ||
159 : | compensate8x8_halfpel(&dct_codes[3 * 64], cur->y, ref->y, refh->y, | ||
160 : | refv->y, refhv->y, 16 * i + 8, 16 * j + 8, | ||
161 : | mb->mvs[3].x, mb->mvs[3].y, edged_width); | ||
162 : | Isibaar | 1.1 | |
163 : | sum = mb->mvs[0].x + mb->mvs[1].x + mb->mvs[2].x + mb->mvs[3].x; | ||
164 : | edgomez | 1.5 | dx = (sum ? SIGN(sum) * |
165 : | (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) : 0); | ||
166 : | Isibaar | 1.1 | |
167 : | sum = mb->mvs[0].y + mb->mvs[1].y + mb->mvs[2].y + mb->mvs[3].y; | ||
168 : | edgomez | 1.5 | dy = (sum ? SIGN(sum) * |
169 : | (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) : 0); | ||
170 : | Isibaar | 1.1 | |
171 : | /* uv-block-based compensation */ | ||
172 : | edgomez | 1.5 | interpolate8x8_switch(refv->u, ref->u, 8 * i, 8 * j, dx, dy, |
173 : | edged_width / 2, rounding); | ||
174 : | transfer_8to16sub(&dct_codes[4 * 64], | ||
175 : | cur->u + 8 * j * edged_width / 2 + 8 * i, | ||
176 : | refv->u + 8 * j * edged_width / 2 + 8 * i, | ||
177 : | edged_width / 2); | ||
178 : | |||
179 : | interpolate8x8_switch(refv->v, ref->v, 8 * i, 8 * j, dx, dy, | ||
180 : | edged_width / 2, rounding); | ||
181 : | transfer_8to16sub(&dct_codes[5 * 64], | ||
182 : | cur->v + 8 * j * edged_width / 2 + 8 * i, | ||
183 : | refv->v + 8 * j * edged_width / 2 + 8 * i, | ||
184 : | edged_width / 2); | ||
185 : | suxen_drol | 1.3 | } |
186 : | } |
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