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1 : | chl | 430 | /***************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * - Motion Compensation module - | ||
5 : | * | ||
6 : | * Copyright(C) 2002 Michael Militzer <michael@xvid.org> | ||
7 : | * Copyright(C) 2002 Edouard Gomez <ed.gomez@wanadoo.fr> | ||
8 : | * Copyright(C) 2002 Christoph Lampert <gruel@web.de> | ||
9 : | * | ||
10 : | * This program is an implementation of a part of one or more MPEG-4 | ||
11 : | * Video tools as specified in ISO/IEC 14496-2 standard. Those intending | ||
12 : | * to use this software module in hardware or software products are | ||
13 : | * advised that its use may infringe existing patents or copyrights, and | ||
14 : | * any such use would be at such party's own risk. The original | ||
15 : | * developer of this software module and his/her company, and subsequent | ||
16 : | * editors and their companies, will have no liability for use of this | ||
17 : | * software or modifications or derivatives thereof. | ||
18 : | * | ||
19 : | * This program is free software; you can redistribute it and/or modify | ||
20 : | * it under the terms of the GNU General Public License as published by | ||
21 : | * the Free Software Foundation; either version 2 of the License, or | ||
22 : | * (at your option) any later version. | ||
23 : | * | ||
24 : | * This program is distributed in the hope that it will be useful, | ||
25 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
26 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
27 : | * GNU General Public License for more details. | ||
28 : | * | ||
29 : | * You should have received a copy of the GNU General Public License | ||
30 : | * along with this program; if not, write to the Free Software | ||
31 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
32 : | * | ||
33 : | *************************************************************************/ | ||
34 : | suxen_drol | 118 | |
35 : | Isibaar | 3 | #include "../encoder.h" |
36 : | #include "../utils/mbfunctions.h" | ||
37 : | #include "../image/interpolate8x8.h" | ||
38 : | #include "../utils/timer.h" | ||
39 : | suxen_drol | 118 | #include "motion.h" |
40 : | Isibaar | 3 | |
41 : | #define ABS(X) (((X)>0)?(X):-(X)) | ||
42 : | #define SIGN(X) (((X)>0)?1:-1) | ||
43 : | |||
44 : | edgomez | 195 | static __inline void |
45 : | compensate8x8_halfpel(int16_t * const dct_codes, | ||
46 : | uint8_t * const cur, | ||
47 : | const uint8_t * const ref, | ||
48 : | const uint8_t * const refh, | ||
49 : | const uint8_t * const refv, | ||
50 : | const uint8_t * const refhv, | ||
51 : | const uint32_t x, | ||
52 : | const uint32_t y, | ||
53 : | const int32_t dx, | ||
54 : | const int dy, | ||
55 : | const uint32_t stride) | ||
56 : | Isibaar | 3 | { |
57 : | edgomez | 195 | int32_t ddx, ddy; |
58 : | Isibaar | 3 | |
59 : | edgomez | 195 | switch (((dx & 1) << 1) + (dy & 1)) // ((dx%2)?2:0)+((dy%2)?1:0) |
60 : | { | ||
61 : | case 0: | ||
62 : | ddx = dx / 2; | ||
63 : | ddy = dy / 2; | ||
64 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
65 : | Isibaar | 209 | ref + (int) ((y + ddy) * stride + x + ddx), stride); |
66 : | Isibaar | 3 | break; |
67 : | |||
68 : | edgomez | 195 | case 1: |
69 : | ddx = dx / 2; | ||
70 : | ddy = (dy - 1) / 2; | ||
71 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
72 : | Isibaar | 209 | refv + (int) ((y + ddy) * stride + x + ddx), stride); |
73 : | Isibaar | 3 | break; |
74 : | |||
75 : | edgomez | 195 | case 2: |
76 : | ddx = (dx - 1) / 2; | ||
77 : | ddy = dy / 2; | ||
78 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
79 : | Isibaar | 209 | refh + (int) ((y + ddy) * stride + x + ddx), stride); |
80 : | Isibaar | 3 | break; |
81 : | |||
82 : | edgomez | 195 | default: // case 3: |
83 : | ddx = (dx - 1) / 2; | ||
84 : | ddy = (dy - 1) / 2; | ||
85 : | transfer_8to16sub(dct_codes, cur + y * stride + x, | ||
86 : | Isibaar | 209 | refhv + (int) ((y + ddy) * stride + x + ddx), stride); |
87 : | Isibaar | 3 | break; |
88 : | edgomez | 195 | } |
89 : | Isibaar | 3 | } |
90 : | |||
91 : | |||
92 : | |||
93 : | edgomez | 195 | void |
94 : | MBMotionCompensation(MACROBLOCK * const mb, | ||
95 : | const uint32_t i, | ||
96 : | const uint32_t j, | ||
97 : | const IMAGE * const ref, | ||
98 : | const IMAGE * const refh, | ||
99 : | const IMAGE * const refv, | ||
100 : | const IMAGE * const refhv, | ||
101 : | IMAGE * const cur, | ||
102 : | int16_t * dct_codes, | ||
103 : | const uint32_t width, | ||
104 : | const uint32_t height, | ||
105 : | const uint32_t edged_width, | ||
106 : | const uint32_t rounding) | ||
107 : | Isibaar | 3 | { |
108 : | static const uint32_t roundtab[16] = | ||
109 : | { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; | ||
110 : | |||
111 : | |||
112 : | edgomez | 195 | if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
113 : | Isibaar | 3 | int32_t dx = mb->mvs[0].x; |
114 : | int32_t dy = mb->mvs[0].y; | ||
115 : | |||
116 : | edgomez | 195 | compensate8x8_halfpel(&dct_codes[0 * 64], cur->y, ref->y, refh->y, |
117 : | refv->y, refhv->y, 16 * i, 16 * j, dx, dy, | ||
118 : | edged_width); | ||
119 : | compensate8x8_halfpel(&dct_codes[1 * 64], cur->y, ref->y, refh->y, | ||
120 : | refv->y, refhv->y, 16 * i + 8, 16 * j, dx, dy, | ||
121 : | edged_width); | ||
122 : | compensate8x8_halfpel(&dct_codes[2 * 64], cur->y, ref->y, refh->y, | ||
123 : | refv->y, refhv->y, 16 * i, 16 * j + 8, dx, dy, | ||
124 : | edged_width); | ||
125 : | compensate8x8_halfpel(&dct_codes[3 * 64], cur->y, ref->y, refh->y, | ||
126 : | refv->y, refhv->y, 16 * i + 8, 16 * j + 8, dx, | ||
127 : | dy, edged_width); | ||
128 : | Isibaar | 3 | |
129 : | dx = (dx & 3) ? (dx >> 1) | 1 : dx / 2; | ||
130 : | dy = (dy & 3) ? (dy >> 1) | 1 : dy / 2; | ||
131 : | |||
132 : | suxen_drol | 152 | /* uv-image-based compensation */ |
133 : | chl | 437 | |
134 : | edgomez | 195 | interpolate8x8_switch(refv->u, ref->u, 8 * i, 8 * j, dx, dy, |
135 : | edged_width / 2, rounding); | ||
136 : | transfer_8to16sub(&dct_codes[4 * 64], | ||
137 : | cur->u + 8 * j * edged_width / 2 + 8 * i, | ||
138 : | refv->u + 8 * j * edged_width / 2 + 8 * i, | ||
139 : | edged_width / 2); | ||
140 : | Isibaar | 3 | |
141 : | edgomez | 195 | interpolate8x8_switch(refv->v, ref->v, 8 * i, 8 * j, dx, dy, |
142 : | edged_width / 2, rounding); | ||
143 : | transfer_8to16sub(&dct_codes[5 * 64], | ||
144 : | cur->v + 8 * j * edged_width / 2 + 8 * i, | ||
145 : | refv->v + 8 * j * edged_width / 2 + 8 * i, | ||
146 : | edged_width / 2); | ||
147 : | chl | 437 | |
148 : | edgomez | 195 | } else // mode == MODE_INTER4V |
149 : | Isibaar | 3 | { |
150 : | int32_t sum, dx, dy; | ||
151 : | |||
152 : | edgomez | 195 | compensate8x8_halfpel(&dct_codes[0 * 64], cur->y, ref->y, refh->y, |
153 : | refv->y, refhv->y, 16 * i, 16 * j, mb->mvs[0].x, | ||
154 : | mb->mvs[0].y, edged_width); | ||
155 : | compensate8x8_halfpel(&dct_codes[1 * 64], cur->y, ref->y, refh->y, | ||
156 : | refv->y, refhv->y, 16 * i + 8, 16 * j, | ||
157 : | mb->mvs[1].x, mb->mvs[1].y, edged_width); | ||
158 : | compensate8x8_halfpel(&dct_codes[2 * 64], cur->y, ref->y, refh->y, | ||
159 : | refv->y, refhv->y, 16 * i, 16 * j + 8, | ||
160 : | mb->mvs[2].x, mb->mvs[2].y, edged_width); | ||
161 : | compensate8x8_halfpel(&dct_codes[3 * 64], cur->y, ref->y, refh->y, | ||
162 : | refv->y, refhv->y, 16 * i + 8, 16 * j + 8, | ||
163 : | mb->mvs[3].x, mb->mvs[3].y, edged_width); | ||
164 : | Isibaar | 3 | |
165 : | sum = mb->mvs[0].x + mb->mvs[1].x + mb->mvs[2].x + mb->mvs[3].x; | ||
166 : | edgomez | 195 | dx = (sum ? SIGN(sum) * |
167 : | (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) : 0); | ||
168 : | Isibaar | 3 | |
169 : | sum = mb->mvs[0].y + mb->mvs[1].y + mb->mvs[2].y + mb->mvs[3].y; | ||
170 : | edgomez | 195 | dy = (sum ? SIGN(sum) * |
171 : | (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) : 0); | ||
172 : | Isibaar | 3 | |
173 : | /* uv-block-based compensation */ | ||
174 : | edgomez | 195 | interpolate8x8_switch(refv->u, ref->u, 8 * i, 8 * j, dx, dy, |
175 : | edged_width / 2, rounding); | ||
176 : | transfer_8to16sub(&dct_codes[4 * 64], | ||
177 : | cur->u + 8 * j * edged_width / 2 + 8 * i, | ||
178 : | refv->u + 8 * j * edged_width / 2 + 8 * i, | ||
179 : | edged_width / 2); | ||
180 : | Isibaar | 3 | |
181 : | edgomez | 195 | interpolate8x8_switch(refv->v, ref->v, 8 * i, 8 * j, dx, dy, |
182 : | edged_width / 2, rounding); | ||
183 : | transfer_8to16sub(&dct_codes[5 * 64], | ||
184 : | cur->v + 8 * j * edged_width / 2 + 8 * i, | ||
185 : | refv->v + 8 * j * edged_width / 2 + 8 * i, | ||
186 : | edged_width / 2); | ||
187 : | Isibaar | 3 | } |
188 : | } |
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