[svn] / trunk / xvidcore / src / motion / motion.h Repository:
ViewVC logotype

Annotation of /trunk/xvidcore/src/motion/motion.h

Parent Directory Parent Directory | Revision Log Revision Log


Revision 904 - (view) (download)

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 : syskin 904 * $Id: motion.h,v 1.21 2003-03-04 11:00:53 syskin 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 : edgomez 851 /* K = 4 */
52 : edgomez 872 extern const uint32_t roundtab_76[16];
53 : edgomez 851 /* K = 2 */
54 : edgomez 872 extern const uint32_t roundtab_78[8];
55 : edgomez 851 /* K = 1 */
56 : edgomez 872 extern const uint32_t roundtab_79[4];
57 : chl 326
58 :     /*
59 : edgomez 851 * getref: calculate reference image pointer
60 : chl 326 * the decision to use interpolation h/v/hv or the normal image is
61 :     * based on dx & dy.
62 :     */
63 :    
64 :     static __inline const uint8_t *
65 :     get_ref(const uint8_t * const refn,
66 :     const uint8_t * const refh,
67 :     const uint8_t * const refv,
68 :     const uint8_t * const refhv,
69 :     const uint32_t x,
70 :     const uint32_t y,
71 :     const uint32_t block, /* block dimension, 8 or 16 */
72 :     const int32_t dx,
73 :     const int32_t dy,
74 : edgomez 851 const int32_t stride)
75 : chl 326 {
76 :     switch (((dx & 1) << 1) + (dy & 1)) { /* ((dx%2)?2:0)+((dy%2)?1:0) */
77 :     case 0:
78 :     return refn + (int) ((x * block + dx / 2) + (y * block + dy / 2) * stride);
79 :     case 1:
80 : syskin 904 return refv + (int) ((x * block + dx / 2) + (y * block + (dy - 1) / 2) * stride);
81 : chl 326 case 2:
82 : syskin 904 return refh + (int) ((x * block + (dx - 1) / 2) + (y * block + dy / 2) * stride);
83 : chl 326 default:
84 : syskin 904 return refhv + (int) ((x * block + (dx - 1) / 2) + (y * block + (dy - 1) / 2) * stride);
85 : chl 326 }
86 :     }
87 :    
88 : edgomez 851 void MotionEstimationBVOP(MBParam * const pParam,
89 : syskin 904 FRAMEINFO * const frame,
90 :     // forward (past) reference
91 :     const int32_t time_bp,
92 :     const int32_t time_pp,
93 :     const MACROBLOCK * const f_mbs,
94 :     const IMAGE * const f_ref,
95 :     const IMAGE * const f_refH,
96 :     const IMAGE * const f_refV,
97 :     const IMAGE * const f_refHV,
98 :     // backward (future) reference
99 :     const FRAMEINFO * const b_reference,
100 :     const IMAGE * const b_ref,
101 :     const IMAGE * const b_refH,
102 :     const IMAGE * const b_refV,
103 :     const IMAGE * const b_refHV);
104 : chl 326
105 : edgomez 851 void MBMotionCompensationBVOP(MBParam * pParam,
106 : syskin 904 MACROBLOCK * const mb,
107 :     const uint32_t i,
108 :     const uint32_t j,
109 :     IMAGE * const cur,
110 :     const IMAGE * const f_ref,
111 :     const IMAGE * const f_refh,
112 :     const IMAGE * const f_refv,
113 :     const IMAGE * const f_refhv,
114 :     const IMAGE * const b_ref,
115 :     const IMAGE * const b_refh,
116 :     const IMAGE * const b_refv,
117 :     const IMAGE * const b_refhv,
118 :     int16_t * dct_codes);
119 :    
120 :    
121 : edgomez 851 /* GMC stuff. Maybe better put it into a separate file */
122 : syskin 904
123 :     void
124 : edgomez 851 generate_GMCparameters( const int num_wp, // [input]: number of warppoints
125 : syskin 904 const int res, // [input]: resolution
126 :     const WARPPOINTS *const warp, // [input]: warp points
127 : edgomez 851 const int width, const int height, // [input]: without edges!
128 : syskin 904 GMC_DATA *const gmc); // [output] precalculated parameters
129 : chl 326
130 : syskin 904 void
131 : edgomez 851 generate_GMCimage( const GMC_DATA *const gmc_data, // [input] precalculated data
132 : syskin 904 const IMAGE *const pRef, // [input]
133 :     const int mb_width,
134 : edgomez 851 const int mb_height,
135 :     const int stride,
136 : syskin 904 const int stride2,
137 : edgomez 851 const int fcode, // [input] some parameters...
138 : syskin 904 const int32_t quarterpel, // [input] for rounding avgMV
139 : edgomez 851 const int reduced_resolution, // [input] ignored
140 :     const int32_t rounding, // [input] for rounding image data
141 :     MACROBLOCK *const pMBs, // [output] average motion vectors
142 :     IMAGE *const pGMC); // [output] full warped image
143 : chl 326
144 : edgomez 851 VECTOR generate_GMCimageMB( const GMC_DATA *const gmc_data, /* [input] all precalc data */
145 : syskin 904 const IMAGE *const pRef, // [input]
146 :     const int mi, const int mj, /* [input] MB position */
147 : edgomez 851 const int stride, /* [input] Lumi stride */
148 :     const int stride2, /* [input] chroma stride */
149 :     const int quarterpel, /* [input] for rounding of AvgMV */
150 : syskin 904 const int rounding,
151 : edgomez 851 IMAGE *const pGMC); /* [outut] generate image */
152 : chl 326
153 : edgomez 851 int
154 : syskin 904 MEanalysis( const IMAGE * const pRef,
155 :     const FRAMEINFO * const Current,
156 :     const MBParam * const pParam,
157 :     const int maxIntra,
158 :     const int intraCount,
159 :     const int bCount,
160 :     const int b_thresh);
161 : chl 326
162 :     #endif /* _MOTION_H_ */

No admin address has been configured
ViewVC Help
Powered by ViewVC 1.0.4