Parent Directory
| 
Revision Log
Revision 539 - (view) (download)
| 1 : | chl | 326 | /************************************************************************** |
| 2 : | * | ||
| 3 : | * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | * - Motion sad header - | ||
| 5 : | * | ||
| 6 : | chl | 530 | * 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 : | * | ||
| 15 : | chl | 326 | * 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 : | * 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 : | Isibaar | 539 | * $Id: motion.h,v 1.13.2.2 2002-09-25 21:28:48 Isibaar 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 : | // fast ((A)/2)*2 | ||
| 40 : | #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 : | /* | ||
| 46 : | chl | 530 | * getref: calculate reference image pointer |
| 47 : | chl | 326 | * the decision to use interpolation h/v/hv or the normal image is |
| 48 : | * based on dx & dy. | ||
| 49 : | */ | ||
| 50 : | |||
| 51 : | Isibaar | 539 | static const uint32_t roundtab[16] = |
| 52 : | { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; | ||
| 53 : | |||
| 54 : | |||
| 55 : | chl | 326 | static __inline const uint8_t * |
| 56 : | get_ref(const uint8_t * const refn, | ||
| 57 : | const uint8_t * const refh, | ||
| 58 : | const uint8_t * const refv, | ||
| 59 : | const uint8_t * const refhv, | ||
| 60 : | const uint32_t x, | ||
| 61 : | const uint32_t y, | ||
| 62 : | const uint32_t block, /* block dimension, 8 or 16 */ | ||
| 63 : | |||
| 64 : | const int32_t dx, | ||
| 65 : | const int32_t dy, | ||
| 66 : | const uint32_t stride) | ||
| 67 : | { | ||
| 68 : | |||
| 69 : | |||
| 70 : | switch (((dx & 1) << 1) + (dy & 1)) { /* ((dx%2)?2:0)+((dy%2)?1:0) */ | ||
| 71 : | case 0: | ||
| 72 : | return refn + (int) ((x * block + dx / 2) + (y * block + dy / 2) * stride); | ||
| 73 : | case 1: | ||
| 74 : | return refv + (int) ((x * block + dx / 2) + (y * block + | ||
| 75 : | (dy - 1) / 2) * stride); | ||
| 76 : | case 2: | ||
| 77 : | return refh + (int) ((x * block + (dx - 1) / 2) + (y * block + | ||
| 78 : | dy / 2) * stride); | ||
| 79 : | default: | ||
| 80 : | return refhv + (int) ((x * block + (dx - 1) / 2) + (y * block + | ||
| 81 : | (dy - 1) / 2) * stride); | ||
| 82 : | } | ||
| 83 : | |||
| 84 : | } | ||
| 85 : | |||
| 86 : | |||
| 87 : | /* This is somehow a copy of get_ref, but with MV instead of X,Y */ | ||
| 88 : | |||
| 89 : | static __inline const uint8_t * | ||
| 90 : | get_ref_mv(const uint8_t * const refn, | ||
| 91 : | const uint8_t * const refh, | ||
| 92 : | const uint8_t * const refv, | ||
| 93 : | const uint8_t * const refhv, | ||
| 94 : | const uint32_t x, | ||
| 95 : | const uint32_t y, | ||
| 96 : | const uint32_t block, /* block dimension, 8 or 16 */ | ||
| 97 : | |||
| 98 : | const VECTOR * mv, /* measured in half-pel! */ | ||
| 99 : | |||
| 100 : | const uint32_t stride) | ||
| 101 : | { | ||
| 102 : | |||
| 103 : | switch ((((mv->x) & 1) << 1) + ((mv->y) & 1)) { | ||
| 104 : | case 0: | ||
| 105 : | return refn + (int) ((x * block + (mv->x) / 2) + (y * block + | ||
| 106 : | (mv->y) / 2) * stride); | ||
| 107 : | case 1: | ||
| 108 : | return refv + (int) ((x * block + (mv->x) / 2) + (y * block + | ||
| 109 : | ((mv->y) - 1) / 2) * stride); | ||
| 110 : | case 2: | ||
| 111 : | return refh + (int) ((x * block + ((mv->x) - 1) / 2) + (y * block + | ||
| 112 : | (mv->y) / 2) * stride); | ||
| 113 : | default: | ||
| 114 : | return refhv + (int) ((x * block + ((mv->x) - 1) / 2) + (y * block + | ||
| 115 : | ((mv->y) - | ||
| 116 : | 1) / 2) * stride); | ||
| 117 : | } | ||
| 118 : | |||
| 119 : | } | ||
| 120 : | |||
| 121 : | void MotionEstimationBVOP(MBParam * const pParam, | ||
| 122 : | FRAMEINFO * const frame, | ||
| 123 : | // forward (past) reference | ||
| 124 : | const int32_t time_bp, | ||
| 125 : | const int32_t time_pp, | ||
| 126 : | const MACROBLOCK * const f_mbs, | ||
| 127 : | const IMAGE * const f_ref, | ||
| 128 : | const IMAGE * const f_refH, | ||
| 129 : | const IMAGE * const f_refV, | ||
| 130 : | const IMAGE * const f_refHV, | ||
| 131 : | // backward (future) reference | ||
| 132 : | const MACROBLOCK * const b_mbs, | ||
| 133 : | const IMAGE * const b_ref, | ||
| 134 : | const IMAGE * const b_refH, | ||
| 135 : | const IMAGE * const b_refV, | ||
| 136 : | const IMAGE * const b_refHV); | ||
| 137 : | |||
| 138 : | void MBMotionCompensationBVOP(MBParam * pParam, | ||
| 139 : | MACROBLOCK * const mb, | ||
| 140 : | const uint32_t i, | ||
| 141 : | const uint32_t j, | ||
| 142 : | IMAGE * const cur, | ||
| 143 : | const IMAGE * const f_ref, | ||
| 144 : | const IMAGE * const f_refh, | ||
| 145 : | const IMAGE * const f_refv, | ||
| 146 : | const IMAGE * const f_refhv, | ||
| 147 : | const IMAGE * const b_ref, | ||
| 148 : | const IMAGE * const b_refh, | ||
| 149 : | const IMAGE * const b_refv, | ||
| 150 : | const IMAGE * const b_refhv, | ||
| 151 : | int16_t * dct_codes); | ||
| 152 : | |||
| 153 : | chl | 530 | void |
| 154 : | MotionEstimationHinted( MBParam * const pParam, | ||
| 155 : | FRAMEINFO * const current, | ||
| 156 : | FRAMEINFO * const reference, | ||
| 157 : | const IMAGE * const pRefH, | ||
| 158 : | const IMAGE * const pRefV, | ||
| 159 : | const IMAGE * const pRefHV); | ||
| 160 : | chl | 326 | |
| 161 : | Isibaar | 539 | int |
| 162 : | MEanalysis( const IMAGE * const pRef, | ||
| 163 : | const IMAGE * const pCurrent, | ||
| 164 : | MBParam * const pParam, | ||
| 165 : | MACROBLOCK * const pMBs, | ||
| 166 : | const uint32_t iFcode); | ||
| 167 : | chl | 326 | |
| 168 : | Isibaar | 539 | |
| 169 : | chl | 326 | #endif /* _MOTION_H_ */ |
| No admin address has been configured | ViewVC Help |
| Powered by ViewVC 1.0.4 |