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Revision 872 - (view) (download)
Original Path: trunk/xvidcore/src/motion/motion.h

1 : edgomez 851 /**************************************************************************
2 : chl 326 *
3 :     * XVID MPEG-4 VIDEO CODEC
4 : edgomez 851 * - Motion sad header -
5 : chl 326 *
6 : edgomez 851 * This program is an implementation of a part of one or more MPEG-4
7 :     * Video tools as specified in ISO/IEC 14496-2 standard. Those intending
8 :     * to use this software module in hardware or software products are
9 :     * advised that its use may infringe existing patents or copyrights, and
10 :     * any such use would be at such party's own risk. The original
11 :     * developer of this software module and his/her company, and subsequent
12 :     * editors and their companies, will have no liability for use of this
13 :     * software or modifications or derivatives thereof.
14 : chl 430 *
15 : edgomez 851 * This program is free software; you can redistribute it and/or modify
16 :     * it under the terms of the GNU General Public License as published by
17 : chl 326 * the Free Software Foundation; either version 2 of the License, or
18 :     * (at your option) any later version.
19 :     *
20 :     * This program is distributed in the hope that it will be useful,
21 :     * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 :     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 :     * GNU General Public License for more details.
24 :     *
25 :     * You should have received a copy of the GNU General Public License
26 :     * along with this program; if not, write to the Free Software
27 :     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 :     *
29 : edgomez 872 * $Id: motion.h,v 1.20 2003-02-19 20:12:43 edgomez Exp $
30 : chl 326 *
31 :     ***************************************************************************/
32 :    
33 :     #ifndef _MOTION_H_
34 :     #define _MOTION_H_
35 :    
36 :     #include "../portab.h"
37 :     #include "../global.h"
38 :    
39 : edgomez 851 // fast ((A)/2)*2
40 : chl 326 #define EVEN(A) (((A)<0?(A)+1:(A)) & ~1)
41 :    
42 :     #define MVzero(A) ( ((A).x)==(0) && ((A).y)==(0) )
43 :     #define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) )
44 :    
45 : edgomez 872 /*****************************************************************************
46 :     * Modified rounding tables -- defined in motion_est.c
47 :     * Original tables see ISO spec tables 7-6 -> 7-9
48 :     ****************************************************************************/
49 : chl 326
50 : edgomez 872 extern const uint32_t roundtab[16];
51 : chl 326
52 : edgomez 851 /* K = 4 */
53 : edgomez 872 extern const uint32_t roundtab_76[16];
54 : edgomez 851 /* K = 2 */
55 : edgomez 872 extern const uint32_t roundtab_78[8];
56 : edgomez 851 /* K = 1 */
57 : edgomez 872 extern const uint32_t roundtab_79[4];
58 : chl 326
59 :    
60 :     /*
61 : edgomez 851 * getref: calculate reference image pointer
62 : chl 326 * the decision to use interpolation h/v/hv or the normal image is
63 :     * based on dx & dy.
64 :     */
65 :    
66 :     static __inline const uint8_t *
67 :     get_ref(const uint8_t * const refn,
68 :     const uint8_t * const refh,
69 :     const uint8_t * const refv,
70 :     const uint8_t * const refhv,
71 :     const uint32_t x,
72 :     const uint32_t y,
73 :     const uint32_t block, /* block dimension, 8 or 16 */
74 :    
75 :     const int32_t dx,
76 :     const int32_t dy,
77 : edgomez 851 const int32_t stride)
78 : chl 326 {
79 :    
80 :    
81 :     switch (((dx & 1) << 1) + (dy & 1)) { /* ((dx%2)?2:0)+((dy%2)?1:0) */
82 :     case 0:
83 :     return refn + (int) ((x * block + dx / 2) + (y * block + dy / 2) * stride);
84 :     case 1:
85 :     return refv + (int) ((x * block + dx / 2) + (y * block +
86 :     (dy - 1) / 2) * stride);
87 :     case 2:
88 :     return refh + (int) ((x * block + (dx - 1) / 2) + (y * block +
89 :     dy / 2) * stride);
90 :     default:
91 :     return refhv + (int) ((x * block + (dx - 1) / 2) + (y * block +
92 :     (dy - 1) / 2) * stride);
93 :     }
94 :    
95 :     }
96 :    
97 :    
98 :     /* This is somehow a copy of get_ref, but with MV instead of X,Y */
99 :    
100 :     static __inline const uint8_t *
101 :     get_ref_mv(const uint8_t * const refn,
102 :     const uint8_t * const refh,
103 :     const uint8_t * const refv,
104 :     const uint8_t * const refhv,
105 :     const uint32_t x,
106 :     const uint32_t y,
107 :     const uint32_t block, /* block dimension, 8 or 16 */
108 :    
109 :     const VECTOR * mv, /* measured in half-pel! */
110 :    
111 : edgomez 851 const int32_t stride)
112 : chl 326 {
113 :    
114 :     switch ((((mv->x) & 1) << 1) + ((mv->y) & 1)) {
115 :     case 0:
116 :     return refn + (int) ((x * block + (mv->x) / 2) + (y * block +
117 :     (mv->y) / 2) * stride);
118 :     case 1:
119 :     return refv + (int) ((x * block + (mv->x) / 2) + (y * block +
120 :     ((mv->y) - 1) / 2) * stride);
121 :     case 2:
122 :     return refh + (int) ((x * block + ((mv->x) - 1) / 2) + (y * block +
123 :     (mv->y) / 2) * stride);
124 :     default:
125 :     return refhv + (int) ((x * block + ((mv->x) - 1) / 2) + (y * block +
126 :     ((mv->y) -
127 :     1) / 2) * stride);
128 :     }
129 :    
130 :     }
131 :    
132 : edgomez 851 void MotionEstimationBVOP(MBParam * const pParam,
133 :     FRAMEINFO * const frame,
134 :     // forward (past) reference
135 :     const int32_t time_bp,
136 :     const int32_t time_pp,
137 :     const MACROBLOCK * const f_mbs,
138 :     const IMAGE * const f_ref,
139 :     const IMAGE * const f_refH,
140 :     const IMAGE * const f_refV,
141 :     const IMAGE * const f_refHV,
142 :     // backward (future) reference
143 :     const FRAMEINFO * const b_reference,
144 :     const IMAGE * const b_ref,
145 :     const IMAGE * const b_refH,
146 :     const IMAGE * const b_refV,
147 :     const IMAGE * const b_refHV);
148 : chl 326
149 : edgomez 851 void MBMotionCompensationBVOP(MBParam * pParam,
150 :     MACROBLOCK * const mb,
151 :     const uint32_t i,
152 :     const uint32_t j,
153 :     IMAGE * const cur,
154 :     const IMAGE * const f_ref,
155 :     const IMAGE * const f_refh,
156 :     const IMAGE * const f_refv,
157 :     const IMAGE * const f_refhv,
158 :     const IMAGE * const b_ref,
159 :     const IMAGE * const b_refh,
160 :     const IMAGE * const b_refv,
161 :     const IMAGE * const b_refhv,
162 :     int16_t * dct_codes);
163 :    
164 :    
165 :     /* GMC stuff. Maybe better put it into a separate file */
166 :    
167 :     void
168 :     generate_GMCparameters( const int num_wp, // [input]: number of warppoints
169 :     const int res, // [input]: resolution
170 :     const WARPPOINTS *const warp, // [input]: warp points
171 :     const int width, const int height, // [input]: without edges!
172 :     GMC_DATA *const gmc); // [output] precalculated parameters
173 : chl 326
174 : edgomez 851 void
175 :     generate_GMCimage( const GMC_DATA *const gmc_data, // [input] precalculated data
176 :     const IMAGE *const pRef, // [input]
177 :     const int mb_width,
178 :     const int mb_height,
179 :     const int stride,
180 :     const int stride2,
181 :     const int fcode, // [input] some parameters...
182 :     const int32_t quarterpel, // [input] for rounding avgMV
183 :     const int reduced_resolution, // [input] ignored
184 :     const int32_t rounding, // [input] for rounding image data
185 :     MACROBLOCK *const pMBs, // [output] average motion vectors
186 :     IMAGE *const pGMC); // [output] full warped image
187 :    
188 : chl 326
189 : edgomez 851 VECTOR generate_GMCimageMB( const GMC_DATA *const gmc_data, /* [input] all precalc data */
190 :     const IMAGE *const pRef, // [input]
191 :     const int mi, const int mj, /* [input] MB position */
192 :     const int stride, /* [input] Lumi stride */
193 :     const int stride2, /* [input] chroma stride */
194 :     const int quarterpel, /* [input] for rounding of AvgMV */
195 :     const int rounding,
196 :     IMAGE *const pGMC); /* [outut] generate image */
197 : chl 326
198 :    
199 :    
200 : edgomez 851 /* Hinted ME */
201 : chl 326
202 : edgomez 851 void
203 :     MotionEstimationHinted( MBParam * const pParam,
204 :     FRAMEINFO * const current,
205 :     FRAMEINFO * const reference,
206 :     const IMAGE * const pRefH,
207 :     const IMAGE * const pRefV,
208 :     const IMAGE * const pRefHV);
209 : chl 326
210 : edgomez 851 int
211 :     MEanalysis( const IMAGE * const pRef,
212 :     FRAMEINFO * const Current,
213 :     MBParam * const pParam,
214 :     int maxIntra,
215 :     int intraCount,
216 :     int bCount);
217 : chl 326
218 : edgomez 851 int
219 :     FindFcode( const MBParam * const pParam,
220 :     const FRAMEINFO * const current);
221 : chl 326
222 :    
223 : edgomez 851 int d_amv_penalty(int x, int y, const VECTOR pred, const uint32_t iFcode, const int quant);
224 :    
225 : chl 326
226 :     #endif /* _MOTION_H_ */

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