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/************************************************************************** |
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* |
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* XVID MPEG-4 VIDEO CODEC |
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* - Motion estimation header - |
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* |
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* This program is an implementation of a part of one or more MPEG-4 |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* to use this software module in hardware or software products are |
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* advised that its use may infringe existing patents or copyrights, and |
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* any such use would be at such party's own risk. The original |
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* developer of this software module and his/her company, and subsequent |
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* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* $Id$ |
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* |
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***************************************************************************/ |
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#ifndef _MOTION_EST_H_ |
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#define _MOTION_EST_H_ |
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#include "../portab.h" |
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#include "../global.h" |
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#include "../image/reduced.h" |
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/* hard coded motion search parameters for motion_est and smp_motion_est */ |
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// very large value |
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#define MV_MAX_ERROR (4096 * 256) |
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/* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */ |
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#define MV16_INTER_BIAS 512 |
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/* vector map (vlc delta size) smoother parameters ! float !*/ |
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#define NEIGH_TEND_16X16 10.5 |
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#define NEIGH_TEND_8X8 40.0 |
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#define NEIGH_8X8_BIAS 30 |
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/* Parameters which control inter/inter4v decision */ |
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#define IMV16X16 2 |
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static const int lambda_vec16[32] = |
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{ 0 ,(int)(1.00235 * NEIGH_TEND_16X16 + 0.5), |
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(int)(1.15582*NEIGH_TEND_16X16 + 0.5), (int)(1.31976*NEIGH_TEND_16X16 + 0.5), |
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(int)(1.49591*NEIGH_TEND_16X16 + 0.5), (int)(1.68601*NEIGH_TEND_16X16 + 0.5), |
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(int)(1.89187*NEIGH_TEND_16X16 + 0.5), (int)(2.11542*NEIGH_TEND_16X16 + 0.5), |
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(int)(2.35878*NEIGH_TEND_16X16 + 0.5), (int)(2.62429*NEIGH_TEND_16X16 + 0.5), |
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(int)(2.91455*NEIGH_TEND_16X16 + 0.5), (int)(3.23253*NEIGH_TEND_16X16 + 0.5), |
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(int)(3.58158*NEIGH_TEND_16X16 + 0.5), (int)(3.96555*NEIGH_TEND_16X16 + 0.5), |
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(int)(4.38887*NEIGH_TEND_16X16 + 0.5), (int)(4.85673*NEIGH_TEND_16X16 + 0.5), |
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(int)(5.37519*NEIGH_TEND_16X16 + 0.5), (int)(5.95144*NEIGH_TEND_16X16 + 0.5), |
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(int)(6.59408*NEIGH_TEND_16X16 + 0.5), (int)(7.31349*NEIGH_TEND_16X16 + 0.5), |
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(int)(8.12242*NEIGH_TEND_16X16 + 0.5), (int)(9.03669*NEIGH_TEND_16X16 + 0.5), |
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(int)(10.0763*NEIGH_TEND_16X16 + 0.5), (int)(11.2669*NEIGH_TEND_16X16 + 0.5), |
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(int)(12.6426*NEIGH_TEND_16X16 + 0.5), (int)(14.2493*NEIGH_TEND_16X16 + 0.5), |
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(int)(16.1512*NEIGH_TEND_16X16 + 0.5), (int)(18.442*NEIGH_TEND_16X16 + 0.5), |
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(int)(21.2656*NEIGH_TEND_16X16 + 0.5), (int)(24.8580*NEIGH_TEND_16X16 + 0.5), |
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(int)(29.6436*NEIGH_TEND_16X16 + 0.5), (int)(36.4949*NEIGH_TEND_16X16 + 0.5) }; |
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static const int lambda_vec8[32] = |
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{ 0 ,(int)(1.00235 * NEIGH_TEND_8X8 + 0.5), |
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(int)(1.15582 + NEIGH_TEND_8X8 + 0.5), (int)(1.31976*NEIGH_TEND_8X8 + 0.5), |
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(int)(1.49591*NEIGH_TEND_8X8 + 0.5), (int)(1.68601*NEIGH_TEND_8X8 + 0.5), |
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(int)(1.89187*NEIGH_TEND_8X8 + 0.5), (int)(2.11542*NEIGH_TEND_8X8 + 0.5), |
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(int)(2.35878*NEIGH_TEND_8X8 + 0.5), (int)(2.62429*NEIGH_TEND_8X8 + 0.5), |
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(int)(2.91455*NEIGH_TEND_8X8 + 0.5), (int)(3.23253*NEIGH_TEND_8X8 + 0.5), |
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(int)(3.58158*NEIGH_TEND_8X8 + 0.5), (int)(3.96555*NEIGH_TEND_8X8 + 0.5), |
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(int)(4.38887*NEIGH_TEND_8X8 + 0.5), (int)(4.85673*NEIGH_TEND_8X8 + 0.5), |
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(int)(5.37519*NEIGH_TEND_8X8 + 0.5), (int)(5.95144*NEIGH_TEND_8X8 + 0.5), |
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(int)(6.59408*NEIGH_TEND_8X8 + 0.5), (int)(7.31349*NEIGH_TEND_8X8 + 0.5), |
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(int)(8.12242*NEIGH_TEND_8X8 + 0.5), (int)(9.03669*NEIGH_TEND_8X8 + 0.5), |
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(int)(10.0763*NEIGH_TEND_8X8 + 0.5), (int)(11.2669*NEIGH_TEND_8X8 + 0.5), |
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(int)(12.6426*NEIGH_TEND_8X8 + 0.5), (int)(14.2493*NEIGH_TEND_8X8 + 0.5), |
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(int)(16.1512*NEIGH_TEND_8X8 + 0.5), (int)(18.442*NEIGH_TEND_8X8 + 0.5), |
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(int)(21.2656*NEIGH_TEND_8X8 + 0.5), (int)(24.8580*NEIGH_TEND_8X8 + 0.5), |
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(int)(29.6436*NEIGH_TEND_8X8 + 0.5), (int)(36.4949*NEIGH_TEND_8X8 + 0.5) }; |
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// mv.length table |
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static const uint32_t mvtab[33] = { |
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1, 2, 3, 4, 6, 7, 7, 7, |
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9, 9, 9, 10, 10, 10, 10, 10, |
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10, 10, 10, 10, 10, 10, 10, 10, |
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10, 11, 11, 11, 11, 11, 11, 12, 12 |
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}; |
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static const int DQtab[4] = { |
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-1, -2, 1, 2 |
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}; |
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#define RRV_MV_SCALEDOWN(a) ( (a)>=0 ? (a+1)/2 : (a-1)/2 ) |
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static const VECTOR zeroMV = {0,0}; |
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typedef struct |
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{ |
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// general fields |
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int max_dx, min_dx, max_dy, min_dy; |
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uint32_t rounding; |
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VECTOR predMV; |
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VECTOR * currentMV; |
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VECTOR * currentQMV; |
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int32_t * iMinSAD; |
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const uint8_t * Ref; |
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const uint8_t * RefH; |
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const uint8_t * RefV; |
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const uint8_t * RefHV; |
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const uint8_t * RefCU; |
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const uint8_t * RefCV; |
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const uint8_t * CurU; |
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const uint8_t * CurV; |
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uint8_t * RefQ; |
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const uint8_t * Cur; |
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uint32_t lambda16; |
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uint32_t lambda8; |
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uint32_t iEdgedWidth; |
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uint32_t iFcode; |
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int * temp; |
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int qpel, qpel_precision; |
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int chroma; |
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int rrv; |
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//fields for interpolate and direct modes |
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const uint8_t * bRef; |
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const uint8_t * bRefH; |
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const uint8_t * bRefV; |
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const uint8_t * bRefHV; |
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const uint8_t * b_RefCU; |
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const uint8_t * b_RefCV; |
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VECTOR bpredMV; |
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uint32_t bFcode; |
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// fields for direct mode |
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VECTOR directmvF[4]; |
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VECTOR directmvB[4]; |
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const VECTOR * referencemv; |
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} SearchData; |
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typedef void(CheckFunc)(const int x, const int y, |
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const int Direction, int * const dir, |
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const SearchData * const Data); |
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CheckFunc *CheckCandidate; |
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/* |
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* Calculate the min/max range |
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* relative to the _MACROBLOCK_ position |
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*/ |
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static void __inline |
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get_range(int32_t * const min_dx, |
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int32_t * const max_dx, |
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int32_t * const min_dy, |
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int32_t * const max_dy, |
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const uint32_t x, |
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const uint32_t y, |
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uint32_t block_sz, /* block dimension, 8 or 16 */ |
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const uint32_t width, |
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const uint32_t height, |
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const uint32_t fcode, |
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const int qpel, /* 1 if the resulting range should be in qpel precision; otherwise 0 */ |
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const int rrv) |
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{ |
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int k, m = qpel ? 4 : 2; |
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const int search_range = 32 << (fcode - 1); |
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int high = search_range - 1; |
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int low = -search_range; |
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if (rrv) { |
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high = RRV_MV_SCALEUP(high); |
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low = RRV_MV_SCALEUP(low); |
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block_sz *= 2; |
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} |
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k = m * (int)(width - x * block_sz); |
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*max_dx = MIN(high, k); |
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k = m * (int)(height - y * block_sz); |
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*max_dy = MIN(high, k); |
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k = -m * (int)((x+1) * block_sz); |
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*min_dx = MAX(low, k); |
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k = -m * (int)((y+1) * block_sz); |
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*min_dy = MAX(low, k); |
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} |
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typedef void MainSearchFunc(int x, int y, const SearchData * const Data, int bDirection); |
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static MainSearchFunc DiamondSearch, AdvDiamondSearch, SquareSearch; |
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static void Search8(const SearchData * const OldData, |
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const int x, const int y, |
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const uint32_t MotionFlags, |
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const MBParam * const pParam, |
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MACROBLOCK * const pMB, |
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const MACROBLOCK * const pMBs, |
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const int block, |
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SearchData * const Data); |
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bool |
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MotionEstimation(MBParam * const pParam, |
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FRAMEINFO * const current, |
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FRAMEINFO * const reference, |
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const IMAGE * const pRefH, |
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const IMAGE * const pRefV, |
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const IMAGE * const pRefHV, |
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const uint32_t iLimit); |
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static void |
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SearchP(const IMAGE * const pRef, |
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const uint8_t * const pRefH, |
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const uint8_t * const pRefV, |
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const uint8_t * const pRefHV, |
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const IMAGE * const pCur, |
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const int x, |
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const int y, |
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const uint32_t MotionFlags, |
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const uint32_t GlobalFlags, |
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const uint32_t iQuant, |
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SearchData * const Data, |
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const MBParam * const pParam, |
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const MACROBLOCK * const pMBs, |
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const MACROBLOCK * const prevMBs, |
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int inter4v, |
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MACROBLOCK * const pMB); |
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static WARPPOINTS |
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GlobalMotionEst(const MACROBLOCK * const pMBs, |
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const MBParam * const pParam, |
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const FRAMEINFO * const current, |
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const FRAMEINFO * const reference, |
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const IMAGE * const pRefH, |
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const IMAGE * const pRefV, |
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const IMAGE * const pRefHV ); |
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#define iDiamondSize 2 |
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static __inline uint32_t |
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MakeGoodMotionFlags(const uint32_t MotionFlags, const uint32_t GlobalFlags) |
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{ |
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uint32_t Flags = MotionFlags; |
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if (!(GlobalFlags & XVID_MODEDECISION_BITS)) |
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Flags &= ~(QUARTERPELREFINE16_BITS+QUARTERPELREFINE8_BITS+HALFPELREFINE16_BITS+HALFPELREFINE8_BITS+EXTSEARCH_BITS); |
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if (Flags & EXTSEARCH_BITS) |
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Flags |= HALFPELREFINE16_BITS; |
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if (Flags & EXTSEARCH_BITS && MotionFlags & PMV_EXTSEARCH8) |
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Flags |= HALFPELREFINE8_BITS; |
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if (Flags & HALFPELREFINE16_BITS) |
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Flags |= QUARTERPELREFINE16_BITS; |
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if (Flags & HALFPELREFINE8_BITS) { |
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Flags |= QUARTERPELREFINE8_BITS; |
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Flags &= ~PMV_HALFPELREFINE8; |
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} |
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if (Flags & QUARTERPELREFINE8_BITS) |
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Flags &= ~PMV_QUARTERPELREFINE8; |
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if (!(GlobalFlags & XVID_QUARTERPEL)) |
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Flags &= ~(PMV_QUARTERPELREFINE16+PMV_QUARTERPELREFINE8+QUARTERPELREFINE16_BITS+QUARTERPELREFINE8_BITS); |
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if (!(GlobalFlags & XVID_HALFPEL)) |
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Flags &= ~(PMV_EXTSEARCH16+PMV_HALFPELREFINE16+PMV_HALFPELREFINE8+HALFPELREFINE16_BITS+HALFPELREFINE8_BITS); |
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if (GlobalFlags & (XVID_GREYSCALE + XVID_REDUCED)) |
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Flags &= ~(PMV_CHROMA16 + PMV_CHROMA8); |
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return Flags; |
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} |
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/* BITS mode decision and search */ |
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#include "../bitstream/zigzag.h" |
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#include "../quant/quant_mpeg4.h" |
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#include "../quant/quant_h263.h" |
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#include "../bitstream/vlc_codes.h" |
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static int |
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CountMBBitsInter(SearchData * const Data, |
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const MACROBLOCK * const pMBs, const int x, const int y, |
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const MBParam * const pParam, |
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const uint32_t MotionFlags); |
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static int |
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CountMBBitsInter4v(const SearchData * const Data, |
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MACROBLOCK * const pMB, const MACROBLOCK * const pMBs, |
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const int x, const int y, |
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const MBParam * const pParam, const uint32_t MotionFlags, |
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const VECTOR * const backup); |
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static int |
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CountMBBitsIntra(const SearchData * const Data); |
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int CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag); |
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int CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag); |
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#endif /* _MOTION_EST_H_ */ |