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/************************************************************************** |
/************************************************************************** |
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* |
* |
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* Modifications: |
* XVID MPEG-4 VIDEO CODEC |
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* motion estimation |
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* |
* |
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* 08.02.2002 split up PMVfast into three routines: PMVFast, PMVFast_MainLoop |
* This program is an implementation of a part of one or more MPEG-4 |
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* PMVFast_Refine to support multiple searches with different start points |
* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* 07.01.2002 uv-block-based interpolation |
* to use this software module in hardware or software products are |
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* 06.01.2002 INTER/INTRA-decision is now done before any SEARCH8 (speedup) |
* advised that its use may infringe existing patents or copyrights, and |
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* changed INTER_BIAS to 150 (as suggested by suxen_drol) |
* any such use would be at such party's own risk. The original |
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* removed halfpel refinement step in PMVfastSearch8 + quality=5 |
* developer of this software module and his/her company, and subsequent |
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* added new quality mode = 6 which performs halfpel refinement |
* editors and their companies, will have no liability for use of this |
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* filesize difference between quality 5 and 6 is smaller than 1% |
* software or modifications or derivatives thereof. |
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* (Isibaar) |
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* 31.12.2001 PMVfastSearch16 and PMVfastSearch8 (gruel) |
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* 30.12.2001 get_range/MotionSearchX simplified; blue/green bug fix |
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* 22.12.2001 commented best_point==99 check |
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* 19.12.2001 modified get_range (purple bug fix) |
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* 15.12.2001 moved pmv displacement from mbprediction |
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* 02.12.2001 motion estimation/compensation split (Isibaar) |
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* 16.11.2001 rewrote/tweaked search algorithms; pross@cs.rmit.edu.au |
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* 10.11.2001 support for sad16/sad8 functions |
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* 28.08.2001 reactivated MODE_INTER4V for EXT_MODE |
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* 24.08.2001 removed MODE_INTER4V_Q, disabled MODE_INTER4V for EXT_MODE |
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* 22.08.2001 added MODE_INTER4V_Q |
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* 20.08.2001 added pragma to get rid of internal compiler error with VC6 |
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* idea by Cyril. Thanks. |
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* |
* |
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* Michael Militzer <isibaar@videocoding.de> |
* 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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*************************************************************************/ |
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#include <assert.h> |
#include <assert.h> |
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#include <stdio.h> |
#include <stdio.h> |
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#include <stdlib.h> |
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#include "../encoder.h" |
#include "../encoder.h" |
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#include "../utils/mbfunctions.h" |
#include "../utils/mbfunctions.h" |
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#include "../prediction/mbprediction.h" |
#include "../prediction/mbprediction.h" |
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#include "../global.h" |
#include "../global.h" |
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#include "../utils/timer.h" |
#include "../utils/timer.h" |
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#include "motion_est.h" |
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#include "motion.h" |
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#include "sad.h" |
#include "sad.h" |
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// very large value |
#define INITIAL_SKIP_THRESH (10) |
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#define MV_MAX_ERROR (4096 * 256) |
#define FINAL_SKIP_THRESH (50) |
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#define MAX_SAD00_FOR_SKIP (20) |
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#define MAX_CHROMA_SAD_FOR_SKIP (18) |
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#define SKIP_THRESH_B (10) |
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// stop search if sdelta < THRESHOLD |
#define CHECK_CANDIDATE(X,Y,D) { \ |
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#define MV16_THRESHOLD 192 |
(*CheckCandidate)((const int)(X),(const int)(Y), (D), &iDirection, data ); } |
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#define MV8_THRESHOLD 56 |
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/* sad16(0,0) bias; mpeg4 spec suggests nb/2+1 */ |
#define iDiamondSize 2 |
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/* nb = vop pixels * 2^(bpp-8) */ |
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#define MV16_00_BIAS (128+1) |
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/* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */ |
//FILE * debug; |
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#define INTER_BIAS 512 |
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/* Parameters which control inter/inter4v decision */ |
static __inline int |
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#define IMV16X16 5 |
d_mv_bits(int x, int y, const uint32_t iFcode) |
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{ |
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int xb, yb; |
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/* vector map (vlc delta size) smoother parameters */ |
if (x == 0) xb = 1; |
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#define NEIGH_TEND_16X16 2 |
else { |
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#define NEIGH_TEND_8X8 2 |
if (x < 0) x = -x; |
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x += (1 << (iFcode - 1)) - 1; |
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x >>= (iFcode - 1); |
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if (x > 32) x = 32; |
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xb = mvtab[x] + iFcode; |
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} |
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if (y == 0) yb = 1; |
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else { |
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if (y < 0) y = -y; |
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y += (1 << (iFcode - 1)) - 1; |
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y >>= (iFcode - 1); |
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if (y > 32) y = 32; |
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yb = mvtab[y] + iFcode; |
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} |
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return xb + yb; |
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} |
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// fast ((A)/2)*2 |
/* CHACK_CANDIATE FUNCTIONS START */ |
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#define EVEN(A) (((A)<0?(A)+1:(A)) & ~1) |
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static void |
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CheckCandidate16(const int x, const int y, const int Direction, int * const dir, const SearchData * const data) |
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{ |
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int32_t * const sad = data->temp; |
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// static int32_t sad[5]; |
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int t; |
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const uint8_t * Reference; |
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#define MIN(X, Y) ((X)<(Y)?(X):(Y)) |
if (( x > data->max_dx) || ( x < data->min_dx) |
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#define MAX(X, Y) ((X)>(Y)?(X):(Y)) |
|| ( y > data->max_dy) || (y < data->min_dy)) return; |
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#define ABS(X) (((X)>0)?(X):-(X)) |
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#define SIGN(X) (((X)>0)?1:-1) |
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switch ( ((x&1)<<1) + (y&1) ) { |
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case 0 : Reference = data->Ref + x/2 + (y/2)*(data->iEdgedWidth); break; |
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case 1 : Reference = data->RefV + x/2 + ((y-1)/2)*(data->iEdgedWidth); break; |
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case 2 : Reference = data->RefH + (x-1)/2 + (y/2)*(data->iEdgedWidth); break; |
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default : Reference = data->RefHV + (x-1)/2 + ((y-1)/2)*(data->iEdgedWidth); break; |
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} |
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int32_t PMVfastSearch8( |
data->temp[0] = sad16v(data->Cur, Reference, data->iEdgedWidth, sad+1); |
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const uint8_t * 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, const int y, |
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const int start_x, int start_y, |
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const uint32_t iQuality, |
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MBParam * const pParam, |
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MACROBLOCK * const pMBs, |
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VECTOR * const currMV, |
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VECTOR * const currPMV); |
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int32_t PMVfastSearch16( |
t = d_mv_bits(x - data->predMV.x, y - data->predMV.y, data->iFcode); |
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const uint8_t * const pRef, |
data->temp[0] += lambda_vec16[data->iQuant] * t; |
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const uint8_t * const pRefH, |
data->temp[1] += lambda_vec8[data->iQuant] * t; |
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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, const int y, |
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const uint32_t iQuality, |
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MBParam * const pParam, |
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MACROBLOCK * const pMBs, |
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VECTOR * const currMV, |
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VECTOR * const currPMV); |
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if (data->temp[0] < data->iMinSAD[0]) { |
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data->iMinSAD[0] = data->temp[0]; |
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data->currentMV[0].x = x; data->currentMV[0].y = y; |
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*dir = Direction; } |
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if (data->temp[1] < data->iMinSAD[1]) { |
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data->iMinSAD[1] = data->temp[1]; data->currentMV[1].x = x; data->currentMV[1].y = y; } |
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if (data->temp[2] < data->iMinSAD[2]) { |
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data->iMinSAD[2] = data->temp[2]; data->currentMV[2].x = x; data->currentMV[2].y = y; } |
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if (data->temp[3] < data->iMinSAD[3]) { |
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data->iMinSAD[3] = data->temp[3]; data->currentMV[3].x = x; data->currentMV[3].y = y; } |
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if (data->temp[4] < data->iMinSAD[4]) { |
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data->iMinSAD[4] = data->temp[4]; data->currentMV[4].x = x; data->currentMV[4].y = y; } |
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/* |
} |
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* diamond search stuff |
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* keep the the sequence in circular order (so optimization works) |
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*/ |
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typedef struct |
static void |
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CheckCandidate16no4v(const int x, const int y, const int Direction, int * const dir, const SearchData * const data) |
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{ |
{ |
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int32_t dx; |
int32_t sad; |
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int32_t dy; |
const uint8_t * Reference; |
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} |
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DPOINT; |
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if (( x > data->max_dx) || ( x < data->min_dx) |
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|| ( y > data->max_dy) || (y < data->min_dy)) return; |
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static const DPOINT diamond_small[4] = |
switch ( ((x&1)<<1) + (y&1) ) |
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{ |
{ |
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{0, 1}, {1, 0}, {0, -1}, {-1, 0} |
case 0 : Reference = data->Ref + x/2 + (y/2)*(data->iEdgedWidth); break; |
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}; |
case 1 : Reference = data->RefV + x/2 + ((y-1)/2)*(data->iEdgedWidth); break; |
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case 2 : Reference = data->RefH + (x-1)/2 + (y/2)*(data->iEdgedWidth); break; |
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default : Reference = data->RefHV + (x-1)/2 + ((y-1)/2)*(data->iEdgedWidth); break; |
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} |
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sad = lambda_vec16[data->iQuant] * |
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d_mv_bits(x - data->predMV.x, y - data->predMV.y, data->iFcode); |
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sad += sad16(data->Cur, Reference, data->iEdgedWidth, 256*4096); |
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static const DPOINT diamond_large[8] = |
if (sad < *(data->iMinSAD)) { |
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*(data->iMinSAD) = sad; |
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data->currentMV[0].x = x; data->currentMV[0].y = y; |
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*dir = Direction; } |
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} |
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static void |
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CheckCandidateInt(const int xf, const int yf, const int Direction, int * const dir, const SearchData * const data) |
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{ |
{ |
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{0, 2}, {1, 1}, {2, 0}, {1, -1}, {0, -2}, {-1, -1}, {-2, 0}, {-1, 1} |
int32_t sad; |
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}; |
const int xb = data->currentMV[1].x; |
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const int yb = data->currentMV[1].y; |
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const uint8_t *ReferenceF, *ReferenceB; |
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if (( xf > data->max_dx) || ( xf < data->min_dx) |
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|| ( yf > data->max_dy) || (yf < data->min_dy)) return; |
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// mv.length table |
switch ( ((xf&1)<<1) + (yf&1) ) { |
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static const uint32_t mvtab[33] = { |
case 0 : ReferenceF = data->Ref + xf/2 + (yf/2)*(data->iEdgedWidth); break; |
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1, 2, 3, 4, 6, 7, 7, 7, |
case 1 : ReferenceF = data->RefV + xf/2 + ((yf-1)/2)*(data->iEdgedWidth); break; |
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9, 9, 9, 10, 10, 10, 10, 10, |
case 2 : ReferenceF = data->RefH + (xf-1)/2 + (yf/2)*(data->iEdgedWidth); break; |
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10, 10, 10, 10, 10, 10, 10, 10, |
default : ReferenceF = data->RefHV + (xf-1)/2 + ((yf-1)/2)*(data->iEdgedWidth); break; |
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10, 11, 11, 11, 11, 11, 11, 12, 12 |
} |
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}; |
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switch ( ((xb&1)<<1) + (yb&1) ) { |
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case 0 : ReferenceB = data->bRef + xb/2 + (yb/2)*(data->iEdgedWidth); break; |
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case 1 : ReferenceB = data->bRefV + xb/2 + ((yb-1)/2)*(data->iEdgedWidth); break; |
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case 2 : ReferenceB = data->bRefH + (xb-1)/2 + (yb/2)*(data->iEdgedWidth); break; |
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default : ReferenceB = data->bRefHV + (xb-1)/2 + ((yb-1)/2)*(data->iEdgedWidth); break; |
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} |
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static __inline uint32_t mv_bits(int32_t component, const uint32_t iFcode) |
sad = lambda_vec16[data->iQuant] * |
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{ |
( d_mv_bits(xf - data->predMV.x, yf - data->predMV.y, data->iFcode) + |
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if (component == 0) |
d_mv_bits(xb - data->bpredMV.x, yb - data->bpredMV.y, data->iFcode) ); |
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return 1; |
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sad += sad16bi(data->Cur, ReferenceF, ReferenceB, data->iEdgedWidth); |
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if (component < 0) |
if (sad < *(data->iMinSAD)) { |
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component = -component; |
*(data->iMinSAD) = sad; |
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data->currentMV->x = xf; data->currentMV->y = yf; |
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*dir = Direction; } |
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} |
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if (iFcode == 1) |
static void |
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CheckCandidateDirect(const int x, const int y, const int Direction, int * const dir, const SearchData * const data) |
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{ |
{ |
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if (component > 32) |
int32_t sad; |
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component = 32; |
int k; |
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const uint8_t *ReferenceF; |
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const uint8_t *ReferenceB; |
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VECTOR mvs, b_mvs; |
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return mvtab[component] + 1; |
if (( x > 31) || ( x < -32) || ( y > 31) || (y < -32)) return; |
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} |
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component += (1 << (iFcode - 1)) - 1; |
sad = lambda_vec16[data->iQuant] * d_mv_bits(x, y, 1); |
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component >>= (iFcode - 1); |
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if (component > 32) |
for (k = 0; k < 4; k++) { |
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component = 32; |
mvs.x = data->directmvF[k].x + x; |
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b_mvs.x = ((x == 0) ? |
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data->directmvB[k].x |
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: mvs.x - data->referencemv[k].x); |
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return mvtab[component] + 1 + iFcode - 1; |
mvs.y = data->directmvF[k].y + y; |
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} |
b_mvs.y = ((y == 0) ? |
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data->directmvB[k].y |
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: mvs.y - data->referencemv[k].y); |
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if (( mvs.x > data->max_dx ) || ( mvs.x < data->min_dx ) |
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|| ( mvs.y > data->max_dy ) || ( mvs.y < data->min_dy ) |
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|| ( b_mvs.x > data->max_dx ) || ( b_mvs.x < data->min_dx ) |
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|| ( b_mvs.y > data->max_dy ) || ( b_mvs.y < data->min_dy )) return; |
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static __inline uint32_t calc_delta_16(const int32_t dx, const int32_t dy, const uint32_t iFcode) |
switch ( ((mvs.x&1)<<1) + (mvs.y&1) ) { |
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{ |
case 0 : ReferenceF = data->Ref + mvs.x/2 + (mvs.y/2)*(data->iEdgedWidth); break; |
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return NEIGH_TEND_16X16 * (mv_bits(dx, iFcode) + mv_bits(dy, iFcode)); |
case 1 : ReferenceF = data->RefV + mvs.x/2 + ((mvs.y-1)/2)*(data->iEdgedWidth); break; |
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case 2 : ReferenceF = data->RefH + (mvs.x-1)/2 + (mvs.y/2)*(data->iEdgedWidth); break; |
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default : ReferenceF = data->RefHV + (mvs.x-1)/2 + ((mvs.y-1)/2)*(data->iEdgedWidth); break; |
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} |
} |
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static __inline uint32_t calc_delta_8(const int32_t dx, const int32_t dy, const uint32_t iFcode) |
switch ( ((b_mvs.x&1)<<1) + (b_mvs.y&1) ) { |
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case 0 : ReferenceB = data->bRef + b_mvs.x/2 + (b_mvs.y/2)*(data->iEdgedWidth); break; |
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{ |
case 1 : ReferenceB = data->bRefV + b_mvs.x/2 + ((b_mvs.y-1)/2)*(data->iEdgedWidth); break; |
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return NEIGH_TEND_8X8 * (mv_bits(dx, iFcode) + mv_bits(dy, iFcode)); |
case 2 : ReferenceB = data->bRefH + (b_mvs.x-1)/2 + (b_mvs.y/2)*(data->iEdgedWidth); break; |
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default : ReferenceB = data->bRefHV + (b_mvs.x-1)/2 + ((b_mvs.y-1)/2)*(data->iEdgedWidth); break; |
| 229 |
} |
} |
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sad += sad8bi(data->Cur + 8*(k&1) + 8*(k>>1)*(data->iEdgedWidth), |
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ReferenceF + 8*(k&1) + 8*(k>>1)*(data->iEdgedWidth), |
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ReferenceB + 8*(k&1) + 8*(k>>1)*(data->iEdgedWidth), |
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data->iEdgedWidth); |
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if (sad > *(data->iMinSAD)) return; |
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} |
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| 238 |
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if (sad < *(data->iMinSAD)) { |
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*(data->iMinSAD) = sad; |
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data->currentMV->x = x; data->currentMV->y = y; |
| 241 |
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*dir = Direction; } |
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} |
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static void |
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CheckCandidateDirectno4v(const int x, const int y, const int Direction, int * const dir, const SearchData * const data) |
| 246 |
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{ |
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int32_t sad; |
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const uint8_t *ReferenceF; |
| 249 |
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const uint8_t *ReferenceB; |
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VECTOR mvs, b_mvs; |
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/* calculate the min/max range (in halfpixels) |
if (( x > 31) || ( x < -31) || ( y > 31) || (y < -31)) return; |
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relative to the _MACROBLOCK_ position |
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*/ |
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static void __inline get_range( |
sad = lambda_vec16[data->iQuant] * d_mv_bits(x, y, 1); |
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int32_t * const min_dx, int32_t * const max_dx, |
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int32_t * const min_dy, int32_t * const max_dy, |
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const uint32_t x, const uint32_t y, |
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const uint32_t block_sz, // block dimension, 8 or 16 |
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const uint32_t width, const uint32_t height, |
|
|
const uint32_t fcode) |
|
|
{ |
|
|
|
|
|
const int search_range = 32 << (fcode - 1); |
|
|
const int high = search_range - 1; |
|
|
const int low = -search_range; |
|
|
|
|
|
// convert full-pixel measurements to half pixel |
|
|
const int hp_width = 2 * width; |
|
|
const int hp_height = 2 * height; |
|
|
const int hp_edge = 2 * block_sz; |
|
|
const int hp_x = 2 * (x) * block_sz; // we need _right end_ of block, not x-coordinate |
|
|
const int hp_y = 2 * (y) * block_sz; // same for _bottom end_ |
|
|
|
|
|
*max_dx = MIN(high, hp_width - hp_x); |
|
|
*max_dy = MIN(high, hp_height - hp_y); |
|
|
*min_dx = MAX(low, -(hp_edge + hp_x)); |
|
|
*min_dy = MAX(low, -(hp_edge + hp_y)); |
|
| 255 |
|
|
| 256 |
} |
mvs.x = data->directmvF[0].x + x; |
| 257 |
|
b_mvs.x = ((x == 0) ? |
| 258 |
|
data->directmvB[0].x |
| 259 |
|
: mvs.x - data->referencemv[0].x); |
| 260 |
|
|
| 261 |
|
mvs.y = data->directmvF[0].y + y; |
| 262 |
|
b_mvs.y = ((y == 0) ? |
| 263 |
|
data->directmvB[0].y |
| 264 |
|
: mvs.y - data->referencemv[0].y); |
| 265 |
|
|
| 266 |
/* |
if (( mvs.x > data->max_dx ) || ( mvs.x < data->min_dx ) |
| 267 |
* getref: calculate reference image pointer |
|| ( mvs.y > data->max_dy ) || ( mvs.y < data->min_dy ) |
| 268 |
* the decision to use interpolation h/v/hv or the normal image is |
|| ( b_mvs.x > data->max_dx ) || ( b_mvs.x < data->min_dx ) |
| 269 |
* based on dx & dy. |
|| ( b_mvs.y > data->max_dy ) || ( b_mvs.y < data->min_dy )) return; |
|
*/ |
|
| 270 |
|
|
| 271 |
static __inline const uint8_t * get_ref( |
switch ( ((mvs.x&1)<<1) + (mvs.y&1) ) { |
| 272 |
const uint8_t * const refn, |
case 0 : ReferenceF = data->Ref + mvs.x/2 + (mvs.y/2)*(data->iEdgedWidth); break; |
| 273 |
const uint8_t * const refh, |
case 1 : ReferenceF = data->RefV + mvs.x/2 + ((mvs.y-1)/2)*(data->iEdgedWidth); break; |
| 274 |
const uint8_t * const refv, |
case 2 : ReferenceF = data->RefH + (mvs.x-1)/2 + (mvs.y/2)*(data->iEdgedWidth); break; |
| 275 |
const uint8_t * const refhv, |
default : ReferenceF = data->RefHV + (mvs.x-1)/2 + ((mvs.y-1)/2)*(data->iEdgedWidth); break; |
|
const uint32_t x, const uint32_t y, |
|
|
const uint32_t block, // block dimension, 8 or 16 |
|
|
const int32_t dx, const int32_t dy, |
|
|
const uint32_t stride) |
|
|
{ |
|
|
|
|
|
switch ( ((dx&1)<<1) + (dy&1) ) // ((dx%2)?2:0)+((dy%2)?1:0) |
|
|
{ |
|
|
case 0 : return refn + (x*block+dx/2) + (y*block+dy/2)*stride; |
|
|
case 1 : return refv + (x*block+dx/2) + (y*block+(dy-1)/2)*stride; |
|
|
case 2 : return refh + (x*block+(dx-1)/2) + (y*block+dy/2)*stride; |
|
|
default : |
|
|
case 3 : return refhv + (x*block+(dx-1)/2) + (y*block+(dy-1)/2)*stride; |
|
| 276 |
} |
} |
| 277 |
|
|
| 278 |
|
switch ( ((b_mvs.x&1)<<1) + (b_mvs.y&1) ) { |
| 279 |
|
case 0 : ReferenceB = data->bRef + b_mvs.x/2 + (b_mvs.y/2)*(data->iEdgedWidth); break; |
| 280 |
|
case 1 : ReferenceB = data->bRefV + b_mvs.x/2 + ((b_mvs.y-1)/2)*(data->iEdgedWidth); break; |
| 281 |
|
case 2 : ReferenceB = data->bRefH + (b_mvs.x-1)/2 + (b_mvs.y/2)*(data->iEdgedWidth); break; |
| 282 |
|
default : ReferenceB = data->bRefHV + (b_mvs.x-1)/2 + ((b_mvs.y-1)/2)*(data->iEdgedWidth); break; |
| 283 |
} |
} |
| 284 |
|
|
| 285 |
|
sad += sad16bi(data->Cur, ReferenceF, ReferenceB, data->iEdgedWidth); |
| 286 |
|
|
| 287 |
/* This is somehow a copy of get_ref, but with MV instead of X,Y */ |
if (sad < *(data->iMinSAD)) { |
| 288 |
|
*(data->iMinSAD) = sad; |
| 289 |
|
data->currentMV->x = x; data->currentMV->y = y; |
| 290 |
|
*dir = Direction; } |
| 291 |
|
} |
| 292 |
|
|
| 293 |
static __inline const uint8_t * get_ref_mv( |
static void |
| 294 |
const uint8_t * const refn, |
CheckCandidate8(const int x, const int y, const int Direction, int * const dir, const SearchData * const data) |
|
const uint8_t * const refh, |
|
|
const uint8_t * const refv, |
|
|
const uint8_t * const refhv, |
|
|
const uint32_t x, const uint32_t y, |
|
|
const uint32_t block, // block dimension, 8 or 16 |
|
|
const VECTOR* mv, // measured in half-pel! |
|
|
const uint32_t stride) |
|
| 295 |
{ |
{ |
| 296 |
|
int32_t sad; |
| 297 |
|
const uint8_t * Reference; |
| 298 |
|
|
| 299 |
|
if (( x > data->max_dx) || ( x < data->min_dx) |
| 300 |
|
|| ( y > data->max_dy) || (y < data->min_dy)) return; |
| 301 |
|
|
| 302 |
switch ( (((mv->x)&1)<<1) + ((mv->y)&1) ) |
switch ( ((x&1)<<1) + (y&1) ) |
| 303 |
{ |
{ |
| 304 |
case 0 : return refn + (x*block+(mv->x)/2) + (y*block+(mv->y)/2)*stride; |
case 0 : Reference = data->Ref + x/2 + (y/2)*(data->iEdgedWidth); break; |
| 305 |
case 1 : return refv + (x*block+(mv->x)/2) + (y*block+((mv->y)-1)/2)*stride; |
case 1 : Reference = data->RefV + x/2 + ((y-1)/2)*(data->iEdgedWidth); break; |
| 306 |
case 2 : return refh + (x*block+((mv->x)-1)/2) + (y*block+(mv->y)/2)*stride; |
case 2 : Reference = data->RefH + (x-1)/2 + (y/2)*(data->iEdgedWidth); break; |
| 307 |
default : |
default : Reference = data->RefHV + (x-1)/2 + ((y-1)/2)*(data->iEdgedWidth); break; |
|
case 3 : return refhv + (x*block+((mv->x)-1)/2) + (y*block+((mv->y)-1)/2)*stride; |
|
| 308 |
} |
} |
| 309 |
|
|
| 310 |
|
sad = sad8(data->Cur, Reference, data->iEdgedWidth); |
| 311 |
|
sad += lambda_vec8[data->iQuant] * d_mv_bits(x - data->predMV.x, y - data->predMV.y, data->iFcode); |
| 312 |
|
|
| 313 |
|
if (sad < *(data->iMinSAD)) { |
| 314 |
|
*(data->iMinSAD) = sad; |
| 315 |
|
data->currentMV->x = x; data->currentMV->y = y; |
| 316 |
|
*dir = Direction; } |
| 317 |
} |
} |
| 318 |
|
|
| 319 |
#ifndef SEARCH16 |
/* CHACK_CANDIATE FUNCTIONS END */ |
|
#define SEARCH16 PMVfastSearch16 |
|
|
#endif |
|
| 320 |
|
|
| 321 |
#ifndef SEARCH8 |
/* MAINSEARCH FUNCTIONS START */ |
|
#define SEARCH8 PMVfastSearch8 |
|
|
#endif |
|
|
|
|
|
bool MotionEstimation( |
|
|
MACROBLOCK * const pMBs, |
|
|
MBParam * const pParam, |
|
|
const IMAGE * const pRef, |
|
|
const IMAGE * const pRefH, |
|
|
const IMAGE * const pRefV, |
|
|
const IMAGE * const pRefHV, |
|
|
IMAGE * const pCurrent, |
|
|
const uint32_t iLimit) |
|
| 322 |
|
|
| 323 |
|
static void |
| 324 |
|
AdvDiamondSearch(int x, int y, const SearchData * const data, int bDirection) |
| 325 |
{ |
{ |
|
const uint32_t iWcount = pParam->mb_width; |
|
|
const uint32_t iHcount = pParam->mb_height; |
|
|
|
|
|
uint32_t i, j, iIntra = 0; |
|
|
|
|
|
VECTOR mv16; |
|
|
VECTOR pmv16; |
|
| 326 |
|
|
| 327 |
int32_t sad8 = 0; |
/* directions: 1 - left (x-1); 2 - right (x+1), 4 - up (y-1); 8 - down (y+1) */ |
|
int32_t sad16; |
|
|
int32_t deviation; |
|
| 328 |
|
|
| 329 |
// note: i==horizontal, j==vertical |
int iDirection; |
|
for (i = 0; i < iHcount; i++) |
|
|
for (j = 0; j < iWcount; j++) |
|
|
{ |
|
|
MACROBLOCK *pMB = &pMBs[j + i * iWcount]; |
|
| 330 |
|
|
| 331 |
sad16 = SEARCH16(pRef->y, pRefH->y, pRefV->y, pRefHV->y, pCurrent, |
do { |
| 332 |
j, i, pParam->motion_flags, |
iDirection = 0; |
| 333 |
pParam, pMBs, &mv16, &pmv16); |
if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1); |
| 334 |
pMB->sad16=sad16; |
if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2); |
| 335 |
|
if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4); |
| 336 |
|
if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8); |
| 337 |
|
|
| 338 |
|
/* now we're doing diagonal checks near our candidate */ |
| 339 |
|
|
| 340 |
/* decide: MODE_INTER or MODE_INTRA |
if (iDirection) { //checking if anything found |
| 341 |
if (dev_intra < sad_inter - 2 * nb) use_intra |
bDirection = iDirection; |
| 342 |
*/ |
iDirection = 0; |
| 343 |
|
x = data->currentMV->x; y = data->currentMV->y; |
| 344 |
|
if (bDirection & 3) { //our candidate is left or right |
| 345 |
|
CHECK_CANDIDATE(x, y + iDiamondSize, 8); |
| 346 |
|
CHECK_CANDIDATE(x, y - iDiamondSize, 4); |
| 347 |
|
} else { // what remains here is up or down |
| 348 |
|
CHECK_CANDIDATE(x + iDiamondSize, y, 2); |
| 349 |
|
CHECK_CANDIDATE(x - iDiamondSize, y, 1); } |
| 350 |
|
|
| 351 |
deviation = dev16(pCurrent->y + j*16 + i*16*pParam->edged_width, pParam->edged_width); |
if (iDirection) { |
| 352 |
|
bDirection += iDirection; |
| 353 |
|
x = data->currentMV->x; y = data->currentMV->y; } |
| 354 |
|
} else { //about to quit, eh? not so fast.... |
| 355 |
|
switch (bDirection) { |
| 356 |
|
case 2: |
| 357 |
|
CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4); |
| 358 |
|
CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8); |
| 359 |
|
break; |
| 360 |
|
case 1: |
| 361 |
|
CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4); |
| 362 |
|
CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8); |
| 363 |
|
break; |
| 364 |
|
case 2 + 4: |
| 365 |
|
CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4); |
| 366 |
|
CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4); |
| 367 |
|
CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8); |
| 368 |
|
break; |
| 369 |
|
case 4: |
| 370 |
|
CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4); |
| 371 |
|
CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4); |
| 372 |
|
break; |
| 373 |
|
case 8: |
| 374 |
|
CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8); |
| 375 |
|
CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8); |
| 376 |
|
break; |
| 377 |
|
case 1 + 4: |
| 378 |
|
CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8); |
| 379 |
|
CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4); |
| 380 |
|
CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4); |
| 381 |
|
break; |
| 382 |
|
case 2 + 8: |
| 383 |
|
CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4); |
| 384 |
|
CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8); |
| 385 |
|
CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8); |
| 386 |
|
break; |
| 387 |
|
case 1 + 8: |
| 388 |
|
CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4); |
| 389 |
|
CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8); |
| 390 |
|
CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8); |
| 391 |
|
break; |
| 392 |
|
default: //1+2+4+8 == we didn't find anything at all |
| 393 |
|
CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4); |
| 394 |
|
CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8); |
| 395 |
|
CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4); |
| 396 |
|
CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8); |
| 397 |
|
break; |
| 398 |
|
} |
| 399 |
|
if (!iDirection) break; //ok, the end. really |
| 400 |
|
bDirection = iDirection; |
| 401 |
|
x = data->currentMV->x; y = data->currentMV->y; |
| 402 |
|
} |
| 403 |
|
} |
| 404 |
|
while (1); //forever |
| 405 |
|
} |
| 406 |
|
|
| 407 |
if (deviation < (sad16 - INTER_BIAS)) |
static void |
| 408 |
|
SquareSearch(int x, int y, const SearchData * const data, int bDirection) |
| 409 |
{ |
{ |
| 410 |
pMB->mode = MODE_INTRA; |
int iDirection; |
|
pMB->mvs[0].x = pMB->mvs[1].x = pMB->mvs[2].x = pMB->mvs[3].x = 0; |
|
|
pMB->mvs[0].y = pMB->mvs[1].y = pMB->mvs[2].y = pMB->mvs[3].y = 0; |
|
| 411 |
|
|
| 412 |
iIntra++; |
do { |
| 413 |
if(iIntra >= iLimit) |
iDirection = 0; |
| 414 |
return 1; |
if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1+16+64); |
| 415 |
|
if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2+32+128); |
| 416 |
|
if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4+16+32); |
| 417 |
|
if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8+64+128); |
| 418 |
|
if (bDirection & 16) CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1+4+16+32+64); |
| 419 |
|
if (bDirection & 32) CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2+4+16+32+128); |
| 420 |
|
if (bDirection & 64) CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1+8+16+64+128); |
| 421 |
|
if (bDirection & 128) CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2+8+32+64+128); |
| 422 |
|
|
| 423 |
continue; |
bDirection = iDirection; |
| 424 |
|
x = data->currentMV->x; y = data->currentMV->y; |
| 425 |
|
} while (iDirection); |
| 426 |
} |
} |
| 427 |
|
|
| 428 |
if (pParam->global_flags & XVID_INTER4V) |
static void |
| 429 |
|
DiamondSearch(int x, int y, const SearchData * const data, int bDirection) |
| 430 |
{ |
{ |
|
pMB->sad8[0] = SEARCH8(pRef->y, pRefH->y, pRefV->y, pRefHV->y, pCurrent, |
|
|
2 * j, 2 * i, mv16.x, mv16.y, pParam->motion_flags, |
|
|
pParam, pMBs, &pMB->mvs[0], &pMB->pmvs[0]); |
|
|
|
|
|
pMB->sad8[1] = SEARCH8(pRef->y, pRefH->y, pRefV->y, pRefHV->y, pCurrent, |
|
|
2 * j + 1, 2 * i, mv16.x, mv16.y, pParam->motion_flags, |
|
|
pParam, pMBs, &pMB->mvs[1], &pMB->pmvs[1]); |
|
| 431 |
|
|
| 432 |
pMB->sad8[2] = SEARCH8(pRef->y, pRefH->y, pRefV->y, pRefHV->y, pCurrent, |
/* directions: 1 - left (x-1); 2 - right (x+1), 4 - up (y-1); 8 - down (y+1) */ |
|
2 * j, 2 * i + 1, mv16.x, mv16.y, pParam->motion_flags, |
|
|
pParam, pMBs, &pMB->mvs[2], &pMB->pmvs[2]); |
|
| 433 |
|
|
| 434 |
pMB->sad8[3] = SEARCH8(pRef->y, pRefH->y, pRefV->y, pRefHV->y, pCurrent, |
int iDirection; |
|
2 * j + 1, 2 * i + 1, mv16.x, mv16.y, pParam->motion_flags, |
|
|
pParam, pMBs, &pMB->mvs[3], &pMB->pmvs[3]); |
|
| 435 |
|
|
| 436 |
sad8 = pMB->sad8[0] + pMB->sad8[1] + pMB->sad8[2] + pMB->sad8[3]; |
do { |
| 437 |
} |
iDirection = 0; |
| 438 |
|
if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1); |
| 439 |
|
if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2); |
| 440 |
|
if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4); |
| 441 |
|
if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8); |
| 442 |
|
|
| 443 |
|
/* now we're doing diagonal checks near our candidate */ |
| 444 |
|
|
| 445 |
/* decide: MODE_INTER or MODE_INTER4V |
if (iDirection) { //checking if anything found |
| 446 |
mpeg4: if (sad8 < sad16 - nb/2+1) use_inter4v |
bDirection = iDirection; |
| 447 |
*/ |
iDirection = 0; |
| 448 |
|
x = data->currentMV->x; y = data->currentMV->y; |
| 449 |
if (pMB->dquant == NO_CHANGE) { |
if (bDirection & 3) { //our candidate is left or right |
| 450 |
if (((pParam->global_flags & XVID_INTER4V)==0) || |
CHECK_CANDIDATE(x, y + iDiamondSize, 8); |
| 451 |
(sad16 < (sad8 + (int32_t)(IMV16X16 * pParam->quant)))) { |
CHECK_CANDIDATE(x, y - iDiamondSize, 4); |
| 452 |
|
} else { // what remains here is up or down |
| 453 |
|
CHECK_CANDIDATE(x + iDiamondSize, y, 2); |
| 454 |
|
CHECK_CANDIDATE(x - iDiamondSize, y, 1); } |
| 455 |
|
|
| 456 |
sad8 = sad16; |
bDirection += iDirection; |
| 457 |
pMB->mode = MODE_INTER; |
x = data->currentMV->x; y = data->currentMV->y; |
|
pMB->mvs[0].x = pMB->mvs[1].x = pMB->mvs[2].x = pMB->mvs[3].x = mv16.x; |
|
|
pMB->mvs[0].y = pMB->mvs[1].y = pMB->mvs[2].y = pMB->mvs[3].y = mv16.y; |
|
|
pMB->pmvs[0].x = pmv16.x; |
|
|
pMB->pmvs[0].y = pmv16.y; |
|
|
} |
|
|
else |
|
|
pMB->mode = MODE_INTER4V; |
|
| 458 |
} |
} |
|
else |
|
|
{ |
|
|
sad8 = sad16; |
|
|
pMB->mode = MODE_INTER; |
|
|
pMB->mvs[0].x = pMB->mvs[1].x = pMB->mvs[2].x = pMB->mvs[3].x = mv16.x; |
|
|
pMB->mvs[0].y = pMB->mvs[1].y = pMB->mvs[2].y = pMB->mvs[3].y = mv16.y; |
|
|
pMB->pmvs[0].x = pmv16.x; |
|
|
pMB->pmvs[0].y = pmv16.y; |
|
| 459 |
} |
} |
| 460 |
|
while (iDirection); |
| 461 |
} |
} |
| 462 |
|
|
| 463 |
return 0; |
/* MAINSEARCH FUNCTIONS END */ |
|
} |
|
| 464 |
|
|
| 465 |
#define MVzero(A) ( ((A).x)==(0) && ((A).y)==(0) ) |
/* HALFPELREFINE COULD BE A MAINSEARCH FUNCTION, BUT THERE IS NO NEED FOR IT */ |
| 466 |
|
|
| 467 |
#define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) ) |
static void |
| 468 |
|
HalfpelRefine(const SearchData * const data) |
| 469 |
|
{ |
| 470 |
|
/* Do a half-pel refinement (or rather a "smallest possible amount" refinement) */ |
| 471 |
|
|
| 472 |
|
VECTOR backupMV = *(data->currentMV); |
| 473 |
|
int iDirection; //not needed |
| 474 |
|
|
| 475 |
|
CHECK_CANDIDATE(backupMV.x - 1, backupMV.y - 1, 0); |
| 476 |
|
CHECK_CANDIDATE(backupMV.x + 1, backupMV.y - 1, 0); |
| 477 |
|
CHECK_CANDIDATE(backupMV.x - 1, backupMV.y + 1, 0); |
| 478 |
|
CHECK_CANDIDATE(backupMV.x + 1, backupMV.y + 1, 0); |
| 479 |
|
|
| 480 |
#define CHECK_MV16_ZERO {\ |
CHECK_CANDIDATE(backupMV.x - 1, backupMV.y, 0); |
| 481 |
if ( (0 <= max_dx) && (0 >= min_dx) \ |
CHECK_CANDIDATE(backupMV.x + 1, backupMV.y, 0); |
| 482 |
&& (0 <= max_dy) && (0 >= min_dy) ) \ |
|
| 483 |
{ \ |
CHECK_CANDIDATE(backupMV.x, backupMV.y + 1, 0); |
| 484 |
iSAD = sad16( cur, get_ref(pRef, pRefH, pRefV, pRefHV, x, y, 16, 0, 0 , iEdgedWidth), iEdgedWidth, MV_MAX_ERROR); \ |
CHECK_CANDIDATE(backupMV.x, backupMV.y - 1, 0); |
|
iSAD += calc_delta_16(-pmv[0].x, -pmv[0].y, (uint8_t)iFcode) * iQuant;\ |
|
|
if (iSAD <= iQuant * 96) \ |
|
|
iSAD -= MV16_00_BIAS; \ |
|
|
if (iSAD < iMinSAD) \ |
|
|
{ iMinSAD=iSAD; currMV->x=0; currMV->y=0; } } \ |
|
|
} |
|
|
|
|
|
|
|
|
#define CHECK_MV16_CANDIDATE(X,Y) { \ |
|
|
if ( ((X) <= max_dx) && ((X) >= min_dx) \ |
|
|
&& ((Y) <= max_dy) && ((Y) >= min_dy) ) \ |
|
|
{ \ |
|
|
iSAD = sad16( cur, get_ref(pRef, pRefH, pRefV, pRefHV, x, y, 16, X, Y, iEdgedWidth),iEdgedWidth, iMinSAD); \ |
|
|
iSAD += calc_delta_16((X) - pmv[0].x, (Y) - pmv[0].y, (uint8_t)iFcode) * iQuant;\ |
|
|
if (iSAD < iMinSAD) \ |
|
|
{ iMinSAD=iSAD; currMV->x=(X); currMV->y=(Y); } } \ |
|
|
} |
|
|
|
|
|
#define CHECK_MV16_CANDIDATE_DIR(X,Y,D) { \ |
|
|
if ( ((X) <= max_dx) && ((X) >= min_dx) \ |
|
|
&& ((Y) <= max_dy) && ((Y) >= min_dy) ) \ |
|
|
{ \ |
|
|
iSAD = sad16( cur, get_ref(pRef, pRefH, pRefV, pRefHV, x, y, 16, X, Y, iEdgedWidth),iEdgedWidth, iMinSAD); \ |
|
|
iSAD += calc_delta_16((X) - pmv[0].x, (Y) - pmv[0].y, (uint8_t)iFcode) * iQuant;\ |
|
|
if (iSAD < iMinSAD) \ |
|
|
{ iMinSAD=iSAD; currMV->x=(X); currMV->y=(Y); iDirection=(D); } } \ |
|
|
} |
|
|
|
|
|
#define CHECK_MV16_CANDIDATE_FOUND(X,Y,D) { \ |
|
|
if ( ((X) <= max_dx) && ((X) >= min_dx) \ |
|
|
&& ((Y) <= max_dy) && ((Y) >= min_dy) ) \ |
|
|
{ \ |
|
|
iSAD = sad16( cur, get_ref(pRef, pRefH, pRefV, pRefHV, x, y, 16, X, Y, iEdgedWidth),iEdgedWidth, iMinSAD); \ |
|
|
iSAD += calc_delta_16((X) - pmv[0].x, (Y) - pmv[0].y, (uint8_t)iFcode) * iQuant;\ |
|
|
if (iSAD < iMinSAD) \ |
|
|
{ iMinSAD=iSAD; currMV->x=(X); currMV->y=(Y); iDirection=(D); iFound=0; } } \ |
|
|
} |
|
|
|
|
|
|
|
|
#define CHECK_MV8_ZERO {\ |
|
|
iSAD = sad8( cur, get_ref(pRef, pRefH, pRefV, pRefHV, x, y, 8, 0, 0 , iEdgedWidth), iEdgedWidth); \ |
|
|
iSAD += calc_delta_8(-pmv[0].x, -pmv[0].y, (uint8_t)iFcode) * iQuant;\ |
|
|
if (iSAD < iMinSAD) \ |
|
|
{ iMinSAD=iSAD; currMV->x=0; currMV->y=0; } \ |
|
|
} |
|
|
|
|
|
|
|
|
#define CHECK_MV8_CANDIDATE(X,Y) { \ |
|
|
if ( ((X) <= max_dx) && ((X) >= min_dx) \ |
|
|
&& ((Y) <= max_dy) && ((Y) >= min_dy) ) \ |
|
|
{ \ |
|
|
iSAD = sad8( cur, get_ref(pRef, pRefH, pRefV, pRefHV, x, y, 8, (X), (Y), iEdgedWidth),iEdgedWidth); \ |
|
|
iSAD += calc_delta_8((X)-pmv[0].x, (Y)-pmv[0].y, (uint8_t)iFcode) * iQuant;\ |
|
|
if (iSAD < iMinSAD) \ |
|
|
{ iMinSAD=iSAD; currMV->x=(X); currMV->y=(Y); } } \ |
|
|
} |
|
|
|
|
|
#define CHECK_MV8_CANDIDATE_DIR(X,Y,D) { \ |
|
|
if ( ((X) <= max_dx) && ((X) >= min_dx) \ |
|
|
&& ((Y) <= max_dy) && ((Y) >= min_dy) ) \ |
|
|
{ \ |
|
|
iSAD = sad8( cur, get_ref(pRef, pRefH, pRefV, pRefHV, x, y, 8, (X), (Y), iEdgedWidth),iEdgedWidth); \ |
|
|
iSAD += calc_delta_8((X)-pmv[0].x, (Y)-pmv[0].y, (uint8_t)iFcode) * iQuant;\ |
|
|
if (iSAD < iMinSAD) \ |
|
|
{ iMinSAD=iSAD; currMV->x=(X); currMV->y=(Y); iDirection=(D); } } \ |
|
|
} |
|
|
|
|
|
#define CHECK_MV8_CANDIDATE_FOUND(X,Y,D) { \ |
|
|
if ( ((X) <= max_dx) && ((X) >= min_dx) \ |
|
|
&& ((Y) <= max_dy) && ((Y) >= min_dy) ) \ |
|
|
{ \ |
|
|
iSAD = sad8( cur, get_ref(pRef, pRefH, pRefV, pRefHV, x, y, 8, (X), (Y), iEdgedWidth),iEdgedWidth); \ |
|
|
iSAD += calc_delta_8((X)-pmv[0].x, (Y)-pmv[0].y, (uint8_t)iFcode) * iQuant;\ |
|
|
if (iSAD < iMinSAD) \ |
|
|
{ iMinSAD=iSAD; currMV->x=(X); currMV->y=(Y); iDirection=(D); iFound=0; } } \ |
|
| 485 |
} |
} |
| 486 |
|
|
| 487 |
/* too slow and not fully functional at the moment */ |
static __inline int |
| 488 |
/* |
SkipDecisionP(const IMAGE * current, const IMAGE * reference, |
|
int32_t ZeroSearch16( |
|
|
const uint8_t * const pRef, |
|
|
const uint8_t * const pRefH, |
|
|
const uint8_t * const pRefV, |
|
|
const uint8_t * const pRefHV, |
|
|
const IMAGE * const pCur, |
|
| 489 |
const int x, const int y, |
const int x, const int y, |
| 490 |
const uint32_t MotionFlags, |
const uint32_t iEdgedWidth, const uint32_t iQuant) |
|
MBParam * const pParam, |
|
|
MACROBLOCK * const pMBs, |
|
|
VECTOR * const currMV, |
|
|
VECTOR * const currPMV) |
|
|
{ |
|
|
const int32_t iEdgedWidth = pParam->edged_width; |
|
|
const int32_t iQuant = pParam->quant; |
|
|
const uint8_t * cur = pCur->y + x*16 + y*16*iEdgedWidth; |
|
|
int32_t iSAD; |
|
|
int32_t pred_x,pred_y; |
|
|
|
|
|
get_pmv(pMBs, x, y, pParam->mb_width, 0, &pred_x, &pred_y); |
|
|
|
|
|
iSAD = sad16( cur, |
|
|
get_ref(pRef, pRefH, pRefV, pRefHV, x, y, 16, 0,0, iEdgedWidth), |
|
|
iEdgedWidth, MV_MAX_ERROR); |
|
|
if (iSAD <= iQuant * 96) |
|
|
iSAD -= MV16_00_BIAS; |
|
|
|
|
|
currMV->x = 0; |
|
|
currMV->y = 0; |
|
|
currPMV->x = -pred_x; |
|
|
currPMV->y = -pred_y; |
|
| 491 |
|
|
| 492 |
return iSAD; |
{ |
| 493 |
|
/* keep repeating checks for all b-frames before this P frame, |
| 494 |
|
to make sure that SKIP is possible (todo) |
| 495 |
|
how: if skip is not possible set sad00 to a very high value */ |
| 496 |
|
|
| 497 |
|
uint32_t sadC = sad8(current->u + x*8 + y*(iEdgedWidth/2)*8, |
| 498 |
|
reference->u + x*8 + y*(iEdgedWidth/2)*8, iEdgedWidth/2); |
| 499 |
|
if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP) return 0; |
| 500 |
|
sadC += sad8(current->v + x*8 + y*(iEdgedWidth/2)*8, |
| 501 |
|
reference->v + x*8 + y*(iEdgedWidth/2)*8, iEdgedWidth/2); |
| 502 |
|
if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP) return 0; |
| 503 |
|
|
| 504 |
|
return 1; |
| 505 |
} |
} |
|
*/ |
|
| 506 |
|
|
| 507 |
int32_t PMVfastSearch16_MainSearch( |
static __inline void |
| 508 |
const uint8_t * const pRef, |
SkipMacroblockP(MACROBLOCK *pMB, const int32_t sad) |
|
const uint8_t * const pRefH, |
|
|
const uint8_t * const pRefV, |
|
|
const uint8_t * const pRefHV, |
|
|
const uint8_t * const cur, |
|
|
const int x, const int y, |
|
|
int32_t startx, int32_t starty, |
|
|
int32_t iMinSAD, |
|
|
VECTOR * const currMV, |
|
|
const VECTOR * const pmv, |
|
|
const int32_t min_dx, const int32_t max_dx, |
|
|
const int32_t min_dy, const int32_t max_dy, |
|
|
const int32_t iEdgedWidth, |
|
|
const int32_t iDiamondSize, |
|
|
const int32_t iFcode, |
|
|
const int32_t iQuant, |
|
|
int iFound) |
|
|
{ |
|
|
/* Do a diamond search around given starting point, return SAD of best */ |
|
|
|
|
|
int32_t iDirection=0; |
|
|
int32_t iSAD; |
|
|
VECTOR backupMV; |
|
|
backupMV.x = startx; |
|
|
backupMV.y = starty; |
|
|
|
|
|
/* It's one search with full Diamond pattern, and only 3 of 4 for all following diamonds */ |
|
|
|
|
|
CHECK_MV16_CANDIDATE_DIR(backupMV.x-iDiamondSize,backupMV.y,1); |
|
|
CHECK_MV16_CANDIDATE_DIR(backupMV.x+iDiamondSize,backupMV.y,2); |
|
|
CHECK_MV16_CANDIDATE_DIR(backupMV.x,backupMV.y-iDiamondSize,3); |
|
|
CHECK_MV16_CANDIDATE_DIR(backupMV.x,backupMV.y+iDiamondSize,4); |
|
|
|
|
|
if (iDirection) |
|
|
while (!iFound) |
|
|
{ |
|
|
iFound = 1; |
|
|
backupMV=*currMV; |
|
|
|
|
|
if ( iDirection != 2) |
|
|
CHECK_MV16_CANDIDATE_FOUND(backupMV.x-iDiamondSize,backupMV.y,1); |
|
|
if ( iDirection != 1) |
|
|
CHECK_MV16_CANDIDATE_FOUND(backupMV.x+iDiamondSize,backupMV.y,2); |
|
|
if ( iDirection != 4) |
|
|
CHECK_MV16_CANDIDATE_FOUND(backupMV.x,backupMV.y-iDiamondSize,3); |
|
|
if ( iDirection != 3) |
|
|
CHECK_MV16_CANDIDATE_FOUND(backupMV.x,backupMV.y+iDiamondSize,4); |
|
|
} |
|
|
else |
|
| 509 |
{ |
{ |
| 510 |
currMV->x = startx; |
pMB->mode = MODE_NOT_CODED; |
| 511 |
currMV->y = starty; |
pMB->mvs[0].x = pMB->mvs[1].x = pMB->mvs[2].x = pMB->mvs[3].x = pMB->mv16.x = 0; |
| 512 |
} |
pMB->mvs[0].y = pMB->mvs[1].y = pMB->mvs[2].y = pMB->mvs[3].y = pMB->mv16.y = 0; |
| 513 |
return iMinSAD; |
pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] = pMB->sad8[3] = sad; |
| 514 |
} |
} |
| 515 |
|
|
| 516 |
int32_t PMVfastSearch16_Refine( |
bool |
| 517 |
const uint8_t * const pRef, |
MotionEstimation(MBParam * const pParam, |
| 518 |
const uint8_t * const pRefH, |
FRAMEINFO * const current, |
| 519 |
const uint8_t * const pRefV, |
FRAMEINFO * const reference, |
| 520 |
const uint8_t * const pRefHV, |
const IMAGE * const pRefH, |
| 521 |
const uint8_t * const cur, |
const IMAGE * const pRefV, |
| 522 |
const int x, const int y, |
const IMAGE * const pRefHV, |
| 523 |
VECTOR * const currMV, |
const uint32_t iLimit) |
|
int32_t iMinSAD, |
|
|
const VECTOR * const pmv, |
|
|
const int32_t min_dx, const int32_t max_dx, |
|
|
const int32_t min_dy, const int32_t max_dy, |
|
|
const int32_t iFcode, |
|
|
const int32_t iQuant, |
|
|
const int32_t iEdgedWidth) |
|
| 524 |
{ |
{ |
| 525 |
/* Do a half-pel refinement (or rather a "smallest possible amount" refinement) */ |
MACROBLOCK *const pMBs = current->mbs; |
| 526 |
|
const IMAGE *const pCurrent = ¤t->image; |
| 527 |
|
const IMAGE *const pRef = &reference->image; |
| 528 |
|
|
| 529 |
|
const VECTOR zeroMV = { 0, 0 }; |
| 530 |
|
|
| 531 |
int32_t iSAD; |
uint32_t x, y; |
| 532 |
VECTOR backupMV = *currMV; |
uint32_t iIntra = 0; |
| 533 |
|
int32_t InterBias; |
| 534 |
|
|
| 535 |
CHECK_MV16_CANDIDATE(backupMV.x-1,backupMV.y-1); |
if (sadInit) (*sadInit) (); |
|
CHECK_MV16_CANDIDATE(backupMV.x ,backupMV.y-1); |
|
|
CHECK_MV16_CANDIDATE(backupMV.x+1,backupMV.y-1); |
|
|
CHECK_MV16_CANDIDATE(backupMV.x-1,backupMV.y); |
|
|
CHECK_MV16_CANDIDATE(backupMV.x+1,backupMV.y); |
|
|
CHECK_MV16_CANDIDATE(backupMV.x-1,backupMV.y+1); |
|
|
CHECK_MV16_CANDIDATE(backupMV.x ,backupMV.y+1); |
|
|
CHECK_MV16_CANDIDATE(backupMV.x+1,backupMV.y+1); |
|
| 536 |
|
|
| 537 |
return iMinSAD; |
for (y = 0; y < pParam->mb_height; y++) { |
| 538 |
|
for (x = 0; x < pParam->mb_width; x++) { |
| 539 |
|
|
| 540 |
|
MACROBLOCK *pMB = &pMBs[x + y * pParam->mb_width]; |
| 541 |
|
int32_t sad00 = pMB->sad16 |
| 542 |
|
= sad16v(pCurrent->y + (x + y * pParam->edged_width) * 16, |
| 543 |
|
pRef->y + (x + y * pParam->edged_width) * 16, |
| 544 |
|
pParam->edged_width, pMB->sad8 ); |
| 545 |
|
|
| 546 |
|
if (!(current->global_flags & XVID_LUMIMASKING)) { |
| 547 |
|
pMB->dquant = NO_CHANGE; |
| 548 |
|
pMB->quant = current->quant; } |
| 549 |
|
|
| 550 |
|
//initial skip decision |
| 551 |
|
|
| 552 |
|
if ((pMB->dquant == NO_CHANGE) && (sad00 <= MAX_SAD00_FOR_SKIP * pMB->quant) |
| 553 |
|
&& (SkipDecisionP(pCurrent, pRef, x, y, pParam->edged_width, pMB->quant)) ) { |
| 554 |
|
if (pMB->sad16 < pMB->quant * INITIAL_SKIP_THRESH) { |
| 555 |
|
SkipMacroblockP(pMB, sad00); |
| 556 |
|
continue; |
| 557 |
} |
} |
| 558 |
|
} else sad00 = 256*4096; // skip not allowed - for final skip decision |
| 559 |
|
|
| 560 |
#define PMV_HALFPEL16 (PMV_HALFPELDIAMOND16|PMV_HALFPELREFINE16) |
SearchP(pRef->y, pRefH->y, pRefV->y, pRefHV->y, pCurrent, x, |
| 561 |
|
y, current->motion_flags, pMB->quant, |
| 562 |
|
current->fcode, pParam, pMBs, reference->mbs, |
| 563 |
|
current->global_flags & XVID_INTER4V, pMB); |
| 564 |
|
|
| 565 |
|
/* final skip decision, a.k.a. "the vector you found, really that good?" */ |
| 566 |
|
if (sad00 < pMB->quant * MAX_SAD00_FOR_SKIP) |
| 567 |
|
if ((100*pMB->sad16)/(sad00+1) > FINAL_SKIP_THRESH) |
| 568 |
|
{ SkipMacroblockP(pMB, sad00); continue; } |
| 569 |
|
|
| 570 |
int32_t PMVfastSearch16( |
/* finally, intra decision */ |
|
const uint8_t * const pRef, |
|
|
const uint8_t * const pRefH, |
|
|
const uint8_t * const pRefV, |
|
|
const uint8_t * const pRefHV, |
|
|
const IMAGE * const pCur, |
|
|
const int x, const int y, |
|
|
const uint32_t MotionFlags, |
|
|
MBParam * const pParam, |
|
|
MACROBLOCK * const pMBs, |
|
|
VECTOR * const currMV, |
|
|
VECTOR * const currPMV) |
|
|
{ |
|
|
const uint32_t iWcount = pParam->mb_width; |
|
|
const int32_t iFcode = pParam->fixed_code; |
|
|
const int32_t iQuant = pParam->quant; |
|
|
const int32_t iWidth = pParam->width; |
|
|
const int32_t iHeight = pParam->height; |
|
|
const int32_t iEdgedWidth = pParam->edged_width; |
|
| 571 |
|
|
| 572 |
const uint8_t * cur = pCur->y + x*16 + y*16*iEdgedWidth; |
InterBias = MV16_INTER_BIAS; |
| 573 |
|
if (pMB->quant > 8) InterBias += 50 * (pMB->quant - 8); // to make high quants work |
| 574 |
|
if (y != 0) |
| 575 |
|
if ((pMB - pParam->mb_width)->mode == MODE_INTER ) InterBias -= 50; |
| 576 |
|
if (x != 0) |
| 577 |
|
if ((pMB - 1)->mode == MODE_INTER ) InterBias -= 50; |
| 578 |
|
|
| 579 |
int32_t iDiamondSize; |
if (InterBias < pMB->sad16) { |
| 580 |
|
const int32_t deviation = |
| 581 |
|
dev16(pCurrent->y + (x + y * pParam->edged_width) * 16, |
| 582 |
|
pParam->edged_width); |
| 583 |
|
|
| 584 |
int32_t min_dx; |
if (deviation < (pMB->sad16 - InterBias)) { |
| 585 |
int32_t max_dx; |
if (++iIntra >= iLimit) return 1; |
| 586 |
int32_t min_dy; |
pMB->mode = MODE_INTRA; |
| 587 |
int32_t max_dy; |
pMB->mv16 = pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = |
| 588 |
|
pMB->mvs[3] = zeroMV; |
| 589 |
|
pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] = |
| 590 |
|
pMB->sad8[3] = 0; |
| 591 |
|
} |
| 592 |
|
} |
| 593 |
|
} |
| 594 |
|
} |
| 595 |
|
return 0; |
| 596 |
|
} |
| 597 |
|
|
|
int32_t iFound; |
|
| 598 |
|
|
| 599 |
VECTOR newMV; |
#define PMV_HALFPEL16 (PMV_HALFPELDIAMOND16|PMV_HALFPELREFINE16) |
|
VECTOR backupMV; /* just for PMVFAST */ |
|
| 600 |
|
|
| 601 |
VECTOR pmv[4]; |
static __inline int |
| 602 |
int32_t psad[4]; |
make_mask(const VECTOR * const pmv, const int i) |
| 603 |
|
{ |
| 604 |
|
int mask = 0xFF, j; |
| 605 |
|
for (j = 0; j < i; j++) { |
| 606 |
|
if (MVequal(pmv[i], pmv[j])) return 0; // same vector has been checked already |
| 607 |
|
if (pmv[i].x == pmv[j].x) { |
| 608 |
|
if (pmv[i].y == pmv[j].y + iDiamondSize) { mask &= ~4; continue; } |
| 609 |
|
if (pmv[i].y == pmv[j].y - iDiamondSize) { mask &= ~8; continue; } |
| 610 |
|
} else |
| 611 |
|
if (pmv[i].y == pmv[j].y) { |
| 612 |
|
if (pmv[i].x == pmv[j].x + iDiamondSize) { mask &= ~1; continue; } |
| 613 |
|
if (pmv[i].x == pmv[j].x - iDiamondSize) { mask &= ~2; continue; } |
| 614 |
|
} |
| 615 |
|
} |
| 616 |
|
return mask; |
| 617 |
|
} |
| 618 |
|
|
| 619 |
MACROBLOCK * const pMB = pMBs + x + y * iWcount; |
static __inline void |
| 620 |
|
PreparePredictionsP(VECTOR * const pmv, int x, int y, const int iWcount, |
| 621 |
|
const int iHcount, const MACROBLOCK * const prevMB) |
| 622 |
|
{ |
| 623 |
|
|
| 624 |
static int32_t threshA,threshB; |
//this function depends on get_pmvdata which means that it sucks. It should get the predictions by itself |
|
int32_t bPredEq; |
|
|
int32_t iMinSAD,iSAD; |
|
| 625 |
|
|
| 626 |
/* Get maximum range */ |
if ( (y != 0) && (x != (iWcount-1)) ) { // [5] top-right neighbour |
| 627 |
get_range(&min_dx, &max_dx, &min_dy, &max_dy, |
pmv[5].x = EVEN(pmv[3].x); |
| 628 |
x, y, 16, iWidth, iHeight, iFcode); |
pmv[5].y = EVEN(pmv[3].y); } |
| 629 |
|
else pmv[5].x = pmv[5].y = 0; |
| 630 |
|
|
| 631 |
/* we work with abs. MVs, not relative to prediction, so get_range is called relative to 0,0 */ |
if (x != 0) { pmv[3].x = EVEN(pmv[1].x); pmv[3].y = EVEN(pmv[1].y); }// pmv[3] is left neighbour |
| 632 |
|
else pmv[3].x = pmv[3].y = 0; |
| 633 |
|
|
| 634 |
if (!(MotionFlags & PMV_HALFPEL16 )) |
if (y != 0) { pmv[4].x = EVEN(pmv[2].x); pmv[4].y = EVEN(pmv[2].y); }// [4] top neighbour |
| 635 |
{ min_dx = EVEN(min_dx); |
else pmv[4].x = pmv[4].y = 0; |
|
max_dx = EVEN(max_dx); |
|
|
min_dy = EVEN(min_dy); |
|
|
max_dy = EVEN(max_dy); |
|
|
} /* because we might use something like IF (dx>max_dx) THEN dx=max_dx; */ |
|
| 636 |
|
|
| 637 |
|
// [1] median prediction |
| 638 |
|
pmv[1].x = EVEN(pmv[0].x); pmv[1].y = EVEN(pmv[0].y); |
| 639 |
|
|
| 640 |
bPredEq = get_pmvdata(pMBs, x, y, iWcount, 0, pmv, psad); |
pmv[0].x = pmv[0].y = 0; // [0] is zero; not used in the loop (checked before) but needed here for make_mask |
| 641 |
|
|
| 642 |
if ((x==0) && (y==0) ) |
pmv[2].x = EVEN(prevMB->mvs[0].x); // [2] is last frame |
| 643 |
{ |
pmv[2].y = EVEN(prevMB->mvs[0].y); |
|
threshA = 512; |
|
|
threshB = 1024; |
|
| 644 |
|
|
| 645 |
|
if ((x != iWcount-1) && (y != iHcount-1)) { |
| 646 |
|
pmv[6].x = EVEN((prevMB+1+iWcount)->mvs[0].x); //[6] right-down neighbour in last frame |
| 647 |
|
pmv[6].y = EVEN((prevMB+1+iWcount)->mvs[0].y); } |
| 648 |
|
else pmv[6].x = pmv[6].y = 0; |
| 649 |
} |
} |
| 650 |
else |
|
| 651 |
|
static void |
| 652 |
|
SearchP(const uint8_t * const pRef, |
| 653 |
|
const uint8_t * const pRefH, |
| 654 |
|
const uint8_t * const pRefV, |
| 655 |
|
const uint8_t * const pRefHV, |
| 656 |
|
const IMAGE * const pCur, |
| 657 |
|
const int x, |
| 658 |
|
const int y, |
| 659 |
|
const uint32_t MotionFlags, |
| 660 |
|
const uint32_t iQuant, |
| 661 |
|
const uint32_t iFcode, |
| 662 |
|
const MBParam * const pParam, |
| 663 |
|
const MACROBLOCK * const pMBs, |
| 664 |
|
const MACROBLOCK * const prevMBs, |
| 665 |
|
int inter4v, |
| 666 |
|
MACROBLOCK * const pMB) |
| 667 |
{ |
{ |
| 668 |
threshA = psad[0]; |
|
| 669 |
threshB = threshA+256; |
const int32_t iEdgedWidth = pParam->edged_width; |
| 670 |
|
|
| 671 |
|
int i, iDirection = 255, mask, threshA; |
| 672 |
|
int32_t temp[5]; |
| 673 |
|
VECTOR currentMV[5], pmv[7]; |
| 674 |
|
int32_t psad[4], iMinSAD[5]; |
| 675 |
|
MainSearchFunc * MainSearchPtr; |
| 676 |
|
SearchData Data; |
| 677 |
|
|
| 678 |
|
get_pmvdata2(pMBs, pParam->mb_width, 0, x, y, 0, pmv, psad); //has to be changed to get_pmv(2)() |
| 679 |
|
get_range(&Data.min_dx, &Data.max_dx, &Data.min_dy, &Data.max_dy, x, y, 16, |
| 680 |
|
pParam->width, pParam->height, iFcode); |
| 681 |
|
|
| 682 |
|
Data.predMV = pmv[0]; |
| 683 |
|
Data.Cur = pCur->y + (x + y * iEdgedWidth) * 16; |
| 684 |
|
Data.iEdgedWidth = iEdgedWidth; |
| 685 |
|
Data.currentMV = currentMV; |
| 686 |
|
Data.iMinSAD = iMinSAD; |
| 687 |
|
Data.Ref = pRef + (x + iEdgedWidth*y)*16; |
| 688 |
|
Data.RefH = pRefH + (x + iEdgedWidth*y) * 16; |
| 689 |
|
Data.RefV = pRefV + (x + iEdgedWidth*y) * 16; |
| 690 |
|
Data.RefHV = pRefHV + (x + iEdgedWidth*y) * 16; |
| 691 |
|
Data.temp = temp; |
| 692 |
|
|
| 693 |
|
Data.iQuant = iQuant; |
| 694 |
|
Data.iFcode = iFcode; |
| 695 |
|
|
| 696 |
|
if (!(MotionFlags & PMV_HALFPEL16)) { |
| 697 |
|
Data.min_dx = EVEN(Data.min_dx); |
| 698 |
|
Data.max_dx = EVEN(Data.max_dx); |
| 699 |
|
Data.min_dy = EVEN(Data.min_dy); |
| 700 |
|
Data.max_dy = EVEN(Data.max_dy); } |
| 701 |
|
|
| 702 |
|
for(i = 0; i < 5; i++) currentMV[i].x = currentMV[i].y = 0; |
| 703 |
|
|
| 704 |
|
i = d_mv_bits(pmv[0].x, pmv[0].y, iFcode); |
| 705 |
|
|
| 706 |
|
iMinSAD[0] = pMB->sad16 + lambda_vec16[iQuant] * i; |
| 707 |
|
iMinSAD[1] = pMB->sad8[0] + lambda_vec8[iQuant] * i; |
| 708 |
|
iMinSAD[2] = pMB->sad8[1]; |
| 709 |
|
iMinSAD[3] = pMB->sad8[2]; |
| 710 |
|
iMinSAD[4] = pMB->sad8[3]; |
| 711 |
|
|
| 712 |
|
if (pMB->dquant != NO_CHANGE) inter4v = 0; |
| 713 |
|
|
| 714 |
|
if ((x == 0) && (y == 0)) threshA = 512; |
| 715 |
|
else { |
| 716 |
|
threshA = psad[0] + 20; |
| 717 |
if (threshA< 512) threshA = 512; |
if (threshA< 512) threshA = 512; |
| 718 |
if (threshA>1024) threshA = 1024; |
if (threshA > 1024) threshA = 1024; } |
|
if (threshB>1792) threshB = 1792; |
|
|
} |
|
| 719 |
|
|
| 720 |
iFound=0; |
PreparePredictionsP(pmv, x, y, pParam->mb_width, pParam->mb_height, |
| 721 |
|
prevMBs + x + y * pParam->mb_width); |
| 722 |
|
|
| 723 |
/* Step 2: Calculate Distance= |MedianMVX| + |MedianMVY| where MedianMV is the motion |
if (inter4v) CheckCandidate = CheckCandidate16; |
| 724 |
vector of the median. |
else CheckCandidate = CheckCandidate16no4v; |
|
If PredEq=1 and MVpredicted = Previous Frame MV, set Found=2 |
|
|
*/ |
|
| 725 |
|
|
| 726 |
if ((bPredEq) && (MVequal(pmv[0],pMB->mvs[0]) ) ) |
/* main loop. checking all predictions */ |
|
iFound=2; |
|
| 727 |
|
|
| 728 |
/* Step 3: If Distance>0 or thresb<1536 or PredEq=1 Select small Diamond Search. |
for (i = 1; i < 7; i++) { |
| 729 |
Otherwise select large Diamond Search. |
if (!(mask = make_mask(pmv, i)) ) continue; |
| 730 |
*/ |
CheckCandidate16(pmv[i].x, pmv[i].y, mask, &iDirection, &Data); |
| 731 |
|
if (iMinSAD[0] < threshA) break; |
| 732 |
|
} |
| 733 |
|
|
| 734 |
if ( (pmv[0].x != 0) || (pmv[0].y != 0) || (threshB<1536) || (bPredEq) ) |
if ((iMinSAD[0] <= threshA) || |
| 735 |
iDiamondSize=1; // halfpel! |
(MVequal(currentMV[0], (prevMBs+x+y*pParam->mb_width)->mvs[0]) && |
| 736 |
else |
(iMinSAD[0] < (prevMBs+x+y*pParam->mb_width)->sad16))) { |
| 737 |
iDiamondSize=2; // halfpel! |
inter4v = 0; |
| 738 |
|
if (MotionFlags & PMV_QUICKSTOP16) goto PMVfast16_Terminate_without_Refine; |
| 739 |
|
if (MotionFlags & PMV_EARLYSTOP16) { |
| 740 |
|
CheckCandidate = CheckCandidate16no4v; // I sure hope it's faster |
| 741 |
|
goto PMVfast16_Terminate_with_Refine; |
| 742 |
|
} |
| 743 |
|
} |
| 744 |
|
|
| 745 |
if (!(MotionFlags & PMV_HALFPELDIAMOND16) ) |
if (MotionFlags & PMV_USESQUARES16) |
| 746 |
iDiamondSize*=2; |
MainSearchPtr = SquareSearch; |
| 747 |
|
else if (MotionFlags & PMV_ADVANCEDDIAMOND16) |
| 748 |
|
MainSearchPtr = AdvDiamondSearch; |
| 749 |
|
else MainSearchPtr = DiamondSearch; |
| 750 |
|
|
| 751 |
/* Step 4: Calculate SAD around the Median prediction. |
(*MainSearchPtr)(currentMV->x, currentMV->y, &Data, iDirection); |
|
MinSAD=SAD |
|
|
If Motion Vector equal to Previous frame motion vector |
|
|
and MinSAD<PrevFrmSAD goto Step 10. |
|
|
If SAD<=256 goto Step 10. |
|
|
*/ |
|
| 752 |
|
|
| 753 |
|
/* extended search, diamond starting in 0,0 and in prediction. |
| 754 |
|
note that this search is/might be done in halfpel positions, |
| 755 |
|
which makes it more different than the diamond above */ |
| 756 |
|
|
| 757 |
// Prepare for main loop |
if (MotionFlags & PMV_EXTSEARCH16) { |
| 758 |
|
int32_t bSAD; |
| 759 |
|
VECTOR startMV = Data.predMV, backupMV = currentMV[0]; |
| 760 |
|
if (!(MotionFlags & PMV_HALFPELREFINE16)) // who's gonna use extsearch and no halfpel? |
| 761 |
|
startMV.x = EVEN(startMV.x); startMV.y = EVEN(startMV.y); |
| 762 |
|
if (!(MVequal(startMV, backupMV))) { |
| 763 |
|
bSAD = iMinSAD[0]; iMinSAD[0] = MV_MAX_ERROR; |
| 764 |
|
|
| 765 |
*currMV=pmv[0]; /* current best := prediction */ |
CheckCandidate16(startMV.x, startMV.y, 255, &iDirection, &Data); |
| 766 |
if (!(MotionFlags & PMV_HALFPEL16 )) |
(*MainSearchPtr)(startMV.x, startMV.y, &Data, 255); |
| 767 |
{ /* This should NOT be necessary! */ |
if (bSAD < iMinSAD[0]) { |
| 768 |
currMV->x = EVEN(currMV->x); |
currentMV[0] = backupMV; |
| 769 |
currMV->y = EVEN(currMV->y); |
iMinSAD[0] = bSAD; } |
| 770 |
} |
} |
| 771 |
|
|
| 772 |
if (currMV->x > max_dx) |
backupMV = currentMV[0]; |
| 773 |
{ |
if (MotionFlags & PMV_HALFPELREFINE16) startMV.x = startMV.y = 1; |
| 774 |
currMV->x=max_dx; |
else startMV.x = startMV.y = 0; |
| 775 |
} |
if (!(MVequal(startMV, backupMV))) { |
| 776 |
if (currMV->x < min_dx) |
bSAD = iMinSAD[0]; iMinSAD[0] = MV_MAX_ERROR; |
| 777 |
{ |
|
| 778 |
currMV->x=min_dx; |
CheckCandidate16(startMV.x, startMV.y, 255, &iDirection, &Data); |
| 779 |
} |
(*MainSearchPtr)(startMV.x, startMV.y, &Data, 255); |
| 780 |
if (currMV->y > max_dy) |
if (bSAD < iMinSAD[0]) { |
| 781 |
{ |
currentMV[0] = backupMV; |
| 782 |
currMV->y=max_dy; |
iMinSAD[0] = bSAD; } |
| 783 |
} |
} |
|
if (currMV->y < min_dy) |
|
|
{ |
|
|
currMV->y=min_dy; |
|
| 784 |
} |
} |
| 785 |
|
|
| 786 |
iMinSAD = sad16( cur, |
PMVfast16_Terminate_with_Refine: |
|
get_ref_mv(pRef, pRefH, pRefV, pRefHV, x, y, 16, currMV, iEdgedWidth), |
|
|
iEdgedWidth, MV_MAX_ERROR); |
|
|
iMinSAD += calc_delta_16(currMV->x-pmv[0].x, currMV->y-pmv[0].y, (uint8_t)iFcode) * iQuant; |
|
| 787 |
|
|
| 788 |
if ( (iMinSAD < 256 ) || ( (MVequal(*currMV,pMB->mvs[0])) && (iMinSAD < pMB->sad16) ) ) |
if (MotionFlags & PMV_HALFPELREFINE16) HalfpelRefine(&Data); |
|
{ |
|
| 789 |
|
|
| 790 |
if (MotionFlags & PMV_QUICKSTOP16) |
PMVfast16_Terminate_without_Refine: |
|
goto step10b; |
|
|
if (MotionFlags & PMV_EARLYSTOP16) |
|
|
goto step10; |
|
|
} |
|
| 791 |
|
|
| 792 |
/* |
if (inter4v) |
| 793 |
Step 5: Calculate SAD for motion vectors taken from left block, top, top-right, and Previous frame block. |
for(i = 0; i < 4; i++) |
| 794 |
Also calculate (0,0) but do not subtract offset. |
Search8(&Data, 2*x+(i&1), 2*y+(i>>1), MotionFlags, pParam, pMB, pMBs, i); |
|
Let MinSAD be the smallest SAD up to this point. |
|
|
If MV is (0,0) subtract offset. ******** WHAT'S THIS 'OFFSET' ??? *********** |
|
|
*/ |
|
| 795 |
|
|
| 796 |
// (0,0) is always possible |
if (!(inter4v) || |
| 797 |
|
(iMinSAD[0] < iMinSAD[1] + iMinSAD[2] + iMinSAD[3] + iMinSAD[4] + IMV16X16 * (int32_t)iQuant )) { |
| 798 |
CHECK_MV16_ZERO; |
// INTER MODE |
| 799 |
|
pMB->mode = MODE_INTER; |
| 800 |
|
pMB->mv16 = pMB->mvs[0] = pMB->mvs[1] |
| 801 |
|
= pMB->mvs[2] = pMB->mvs[3] = currentMV[0]; |
| 802 |
|
|
| 803 |
// previous frame MV is always possible |
pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = |
| 804 |
CHECK_MV16_CANDIDATE(pMB->mvs[0].x,pMB->mvs[0].y); |
pMB->sad8[2] = pMB->sad8[3] = iMinSAD[0]; |
| 805 |
|
|
| 806 |
// left neighbour, if allowed |
pMB->pmvs[0].x = currentMV[0].x - Data.predMV.x; |
| 807 |
if (x != 0) |
pMB->pmvs[0].y = currentMV[0].y - Data.predMV.y; |
| 808 |
{ |
} else { |
| 809 |
if (!(MotionFlags & PMV_HALFPEL16 )) |
// INTER4V MODE; all other things are already set in Search8 |
| 810 |
{ pmv[1].x = EVEN(pmv[1].x); |
pMB->mode = MODE_INTER4V; |
| 811 |
pmv[1].y = EVEN(pmv[1].y); |
pMB->sad16 = iMinSAD[1] + iMinSAD[2] + iMinSAD[3] + iMinSAD[4] + IMV16X16 * iQuant; |
|
} |
|
|
CHECK_MV16_CANDIDATE(pmv[1].x,pmv[1].y); |
|
| 812 |
} |
} |
| 813 |
|
|
|
// top neighbour, if allowed |
|
|
if (y != 0) |
|
|
{ |
|
|
if (!(MotionFlags & PMV_HALFPEL16 )) |
|
|
{ pmv[2].x = EVEN(pmv[2].x); |
|
|
pmv[2].y = EVEN(pmv[2].y); |
|
| 814 |
} |
} |
|
CHECK_MV16_CANDIDATE(pmv[2].x,pmv[2].y); |
|
| 815 |
|
|
| 816 |
// top right neighbour, if allowed |
static void |
| 817 |
if (x != (iWcount-1)) |
Search8(const SearchData * const OldData, |
| 818 |
|
const int x, const int y, |
| 819 |
|
const uint32_t MotionFlags, |
| 820 |
|
const MBParam * const pParam, |
| 821 |
|
MACROBLOCK * const pMB, |
| 822 |
|
const MACROBLOCK * const pMBs, |
| 823 |
|
const int block) |
| 824 |
{ |
{ |
| 825 |
if (!(MotionFlags & PMV_HALFPEL16 )) |
SearchData Data; |
|
{ pmv[3].x = EVEN(pmv[3].x); |
|
|
pmv[3].y = EVEN(pmv[3].y); |
|
|
} |
|
|
CHECK_MV16_CANDIDATE(pmv[3].x,pmv[3].y); |
|
|
} |
|
|
} |
|
| 826 |
|
|
| 827 |
/* Step 6: If MinSAD <= thresa goto Step 10. |
Data.predMV = get_pmv2(pMBs, pParam->mb_width, 0, x/2 , y/2, block); |
| 828 |
If Motion Vector equal to Previous frame motion vector and MinSAD<PrevFrmSAD goto Step 10. |
Data.iMinSAD = OldData->iMinSAD + 1 + block; |
| 829 |
*/ |
Data.currentMV = OldData->currentMV+1+block; |
| 830 |
|
Data.iFcode = OldData->iFcode; |
| 831 |
|
Data.iQuant = OldData->iQuant; |
| 832 |
|
|
| 833 |
if ( (iMinSAD <= threshA) || ( MVequal(*currMV,pMB->mvs[0]) && (iMinSAD < pMB->sad16) ) ) |
if (block != 0) |
| 834 |
{ |
*(Data.iMinSAD) += lambda_vec8[Data.iQuant] * |
| 835 |
if (MotionFlags & PMV_QUICKSTOP16) |
d_mv_bits( Data.currentMV->x - Data.predMV.x, |
| 836 |
goto step10b; |
Data.currentMV->y - Data.predMV.y, |
| 837 |
if (MotionFlags & PMV_EARLYSTOP16) |
Data.iFcode); |
|
goto step10; |
|
|
} |
|
| 838 |
|
|
| 839 |
|
|
| 840 |
/************ (Diamond Search) **************/ |
if (MotionFlags & (PMV_EXTSEARCH8|PMV_HALFPELREFINE8)) { |
|
/* |
|
|
Step 7: Perform Diamond search, with either the small or large diamond. |
|
|
If Found=2 only examine one Diamond pattern, and afterwards goto step 10 |
|
|
Step 8: If small diamond, iterate small diamond search pattern until motion vector lies in the center of the diamond. |
|
|
If center then goto step 10. |
|
|
Step 9: If large diamond, iterate large diamond search pattern until motion vector lies in the center. |
|
|
Refine by using small diamond and goto step 10. |
|
|
*/ |
|
| 841 |
|
|
| 842 |
backupMV = *currMV; /* save best prediction, actually only for EXTSEARCH */ |
Data.Ref = OldData->Ref + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
| 843 |
|
Data.RefH = OldData->RefH + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
| 844 |
|
Data.RefV = OldData->RefV + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
| 845 |
|
Data.RefHV = OldData->RefHV + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
| 846 |
|
|
| 847 |
/* default: use best prediction as starting point for one call of PMVfast_MainSearch */ |
Data.iEdgedWidth = pParam->edged_width; |
|
iSAD = PMVfastSearch16_MainSearch(pRef, pRefH, pRefV, pRefHV, cur, |
|
|
x, y, |
|
|
currMV->x, currMV->y, iMinSAD, &newMV, |
|
|
pmv, min_dx, max_dx, min_dy, max_dy, iEdgedWidth, iDiamondSize, iFcode, iQuant, iFound); |
|
| 848 |
|
|
| 849 |
if (iSAD < iMinSAD) |
Data.Cur = OldData->Cur + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
|
{ |
|
|
*currMV = newMV; |
|
|
iMinSAD = iSAD; |
|
|
} |
|
| 850 |
|
|
| 851 |
if (MotionFlags & PMV_EXTSEARCH16) |
get_range(&Data.min_dx, &Data.max_dx, &Data.min_dy, &Data.max_dy, x, y, 8, |
| 852 |
{ |
pParam->width, pParam->height, OldData->iFcode); |
|
/* extended: search (up to) two more times: orignal prediction and (0,0) */ |
|
| 853 |
|
|
| 854 |
if (!(MVequal(pmv[0],backupMV)) ) |
CheckCandidate = CheckCandidate8; |
|
{ iSAD = PMVfastSearch16_MainSearch(pRef, pRefH, pRefV, pRefHV, cur, |
|
|
x, y, |
|
|
pmv[0].x, pmv[0].y, iMinSAD, &newMV, |
|
|
pmv, min_dx, max_dx, min_dy, max_dy, iEdgedWidth, iDiamondSize, iFcode, iQuant, iFound); |
|
| 855 |
|
|
| 856 |
if (iSAD < iMinSAD) |
if (MotionFlags & PMV_EXTSEARCH8) { |
| 857 |
{ |
|
| 858 |
*currMV = newMV; |
MainSearchFunc *MainSearchPtr; |
| 859 |
iMinSAD = iSAD; |
if (MotionFlags & PMV_USESQUARES8) MainSearchPtr = SquareSearch; |
| 860 |
|
else if (MotionFlags & PMV_ADVANCEDDIAMOND8) MainSearchPtr = AdvDiamondSearch; |
| 861 |
|
else MainSearchPtr = DiamondSearch; |
| 862 |
|
|
| 863 |
|
(*MainSearchPtr)(Data.currentMV->x, Data.currentMV->y, &Data, 255); } |
| 864 |
|
|
| 865 |
|
if (MotionFlags & PMV_HALFPELREFINE8) HalfpelRefine(&Data); |
| 866 |
} |
} |
| 867 |
|
|
| 868 |
|
pMB->pmvs[block].x = Data.currentMV->x - Data.predMV.x; |
| 869 |
|
pMB->pmvs[block].y = Data.currentMV->y - Data.predMV.y; |
| 870 |
|
pMB->mvs[block] = *(Data.currentMV); |
| 871 |
|
pMB->sad8[block] = 4 * (*(Data.iMinSAD)); |
| 872 |
} |
} |
| 873 |
|
|
| 874 |
if ( (!(MVzero(pmv[0]))) && (!(MVzero(backupMV))) ) |
/* B-frames code starts here */ |
|
{ iSAD = PMVfastSearch16_MainSearch(pRef, pRefH, pRefV, pRefHV, cur, |
|
|
x, y, |
|
|
0, 0, iMinSAD, &newMV, |
|
|
pmv, min_dx, max_dx, min_dy, max_dy, iEdgedWidth, iDiamondSize, iFcode, iQuant, iFound); |
|
| 875 |
|
|
| 876 |
if (iSAD < iMinSAD) |
static __inline VECTOR |
| 877 |
|
ChoosePred(const MACROBLOCK * const pMB, const uint32_t mode) |
| 878 |
{ |
{ |
| 879 |
*currMV = newMV; |
/* the stupidiest function ever */ |
| 880 |
iMinSAD = iSAD; |
if (mode == MODE_FORWARD) return pMB->mvs[0]; |
| 881 |
} |
else return pMB->b_mvs[0]; |
|
} |
|
| 882 |
} |
} |
| 883 |
|
|
| 884 |
/* |
static void __inline |
| 885 |
Step 10: The motion vector is chosen according to the block corresponding to MinSAD. |
PreparePredictionsBF(VECTOR * const pmv, const int x, const int y, |
| 886 |
*/ |
const uint32_t iWcount, |
| 887 |
|
const MACROBLOCK * const pMB, |
| 888 |
|
const uint32_t mode_curr) |
| 889 |
|
{ |
| 890 |
|
|
| 891 |
step10: |
// [0] is prediction |
| 892 |
if (MotionFlags & PMV_HALFPELREFINE16) // perform final half-pel step |
pmv[0].x = EVEN(pmv[0].x); pmv[0].y = EVEN(pmv[0].y); |
|
iMinSAD = PMVfastSearch16_Refine( pRef, pRefH, pRefV, pRefHV, cur, |
|
|
x, y, |
|
|
currMV, iMinSAD, |
|
|
pmv, min_dx, max_dx, min_dy, max_dy, iFcode, iQuant, iEdgedWidth); |
|
| 893 |
|
|
| 894 |
step10b: |
pmv[1].x = pmv[1].y = 0; // [1] is zero |
|
currPMV->x = currMV->x - pmv[0].x; |
|
|
currPMV->y = currMV->y - pmv[0].y; |
|
|
return iMinSAD; |
|
|
} |
|
| 895 |
|
|
| 896 |
|
pmv[2] = ChoosePred(pMB, mode_curr); |
| 897 |
|
pmv[2].x = EVEN(pmv[2].x); pmv[2].y = EVEN(pmv[2].y); |
| 898 |
|
|
| 899 |
|
pmv[3].x = pmv[3].y = 0; |
| 900 |
|
if ((y != 0)&&(x != (int)(iWcount+1))) { // [3] top-right neighbour |
| 901 |
|
pmv[3] = ChoosePred(pMB+1-iWcount, mode_curr); |
| 902 |
|
pmv[3].x = EVEN(pmv[3].x); pmv[3].y = EVEN(pmv[3].y); } |
| 903 |
|
|
| 904 |
|
if (y != 0) { |
| 905 |
|
pmv[4] = ChoosePred(pMB-iWcount, mode_curr); |
| 906 |
|
pmv[4].x = EVEN(pmv[4].x); pmv[4].y = EVEN(pmv[4].y); |
| 907 |
|
} else pmv[4].x = pmv[4].y = 0; |
| 908 |
|
|
| 909 |
|
if (x != 0) { |
| 910 |
|
pmv[5] = ChoosePred(pMB-1, mode_curr); |
| 911 |
|
pmv[5].x = EVEN(pmv[5].x); pmv[5].y = EVEN(pmv[5].y); |
| 912 |
|
} else pmv[5].x = pmv[5].y = 0; |
| 913 |
|
|
| 914 |
|
if ((x != 0)&&(y != 0)) { |
| 915 |
|
pmv[6] = ChoosePred(pMB-1-iWcount, mode_curr); |
| 916 |
|
pmv[6].x = EVEN(pmv[5].x); pmv[5].y = EVEN(pmv[5].y); |
| 917 |
|
} else pmv[6].x = pmv[6].y = 0; |
| 918 |
|
|
| 919 |
int32_t PMVfastSearch8_MainSearch( |
// more? |
|
const uint8_t * const pRef, |
|
|
const uint8_t * const pRefH, |
|
|
const uint8_t * const pRefV, |
|
|
const uint8_t * const pRefHV, |
|
|
const uint8_t * const cur, |
|
|
const int x, const int y, |
|
|
int32_t startx, int32_t starty, |
|
|
int32_t iMinSAD, |
|
|
VECTOR * const currMV, |
|
|
const VECTOR * const pmv, |
|
|
const int32_t min_dx, const int32_t max_dx, |
|
|
const int32_t min_dy, const int32_t max_dy, |
|
|
const int32_t iEdgedWidth, |
|
|
const int32_t iDiamondSize, |
|
|
const int32_t iFcode, |
|
|
const int32_t iQuant, |
|
|
int iFound) |
|
|
{ |
|
|
/* Do a diamond search around given starting point, return SAD of best */ |
|
|
|
|
|
int32_t iDirection=0; |
|
|
int32_t iSAD; |
|
|
VECTOR backupMV; |
|
|
backupMV.x = startx; |
|
|
backupMV.y = starty; |
|
|
|
|
|
/* It's one search with full Diamond pattern, and only 3 of 4 for all following diamonds */ |
|
|
|
|
|
CHECK_MV8_CANDIDATE_DIR(backupMV.x-iDiamondSize,backupMV.y,1); |
|
|
CHECK_MV8_CANDIDATE_DIR(backupMV.x+iDiamondSize,backupMV.y,2); |
|
|
CHECK_MV8_CANDIDATE_DIR(backupMV.x,backupMV.y-iDiamondSize,3); |
|
|
CHECK_MV8_CANDIDATE_DIR(backupMV.x,backupMV.y+iDiamondSize,4); |
|
|
|
|
|
if (iDirection) |
|
|
while (!iFound) |
|
|
{ |
|
|
iFound = 1; |
|
|
backupMV=*currMV; // since iDirection!=0, this is well defined! |
|
|
|
|
|
if ( iDirection != 2) |
|
|
CHECK_MV8_CANDIDATE_FOUND(backupMV.x-iDiamondSize,backupMV.y,1); |
|
|
if ( iDirection != 1) |
|
|
CHECK_MV8_CANDIDATE_FOUND(backupMV.x+iDiamondSize,backupMV.y,2); |
|
|
if ( iDirection != 4) |
|
|
CHECK_MV8_CANDIDATE_FOUND(backupMV.x,backupMV.y-iDiamondSize,3); |
|
|
if ( iDirection != 3) |
|
|
CHECK_MV8_CANDIDATE_FOUND(backupMV.x,backupMV.y+iDiamondSize,4); |
|
|
} |
|
|
else |
|
|
{ |
|
|
currMV->x = startx; |
|
|
currMV->y = starty; |
|
|
} |
|
|
return iMinSAD; |
|
| 920 |
} |
} |
| 921 |
|
|
| 922 |
int32_t PMVfastSearch8_Refine( |
|
| 923 |
const uint8_t * const pRef, |
/* search backward or forward, for b-frames */ |
| 924 |
|
static void |
| 925 |
|
SearchBF( const uint8_t * const pRef, |
| 926 |
const uint8_t * const pRefH, |
const uint8_t * const pRefH, |
| 927 |
const uint8_t * const pRefV, |
const uint8_t * const pRefV, |
| 928 |
const uint8_t * const pRefHV, |
const uint8_t * const pRefHV, |
| 929 |
const uint8_t * const cur, |
const IMAGE * const pCur, |
| 930 |
const int x, const int y, |
const int x, const int y, |
| 931 |
VECTOR * const currMV, |
const uint32_t MotionFlags, |
| 932 |
int32_t iMinSAD, |
const uint32_t iQuant, |
| 933 |
const VECTOR * const pmv, |
const uint32_t iFcode, |
| 934 |
const int32_t min_dx, const int32_t max_dx, |
const MBParam * const pParam, |
| 935 |
const int32_t min_dy, const int32_t max_dy, |
MACROBLOCK * const pMB, |
| 936 |
const int32_t iFcode, |
const VECTOR * const predMV, |
| 937 |
const int32_t iQuant, |
int32_t * const best_sad, |
| 938 |
const int32_t iEdgedWidth) |
const int32_t mode_current) |
| 939 |
{ |
{ |
|
/* Do a half-pel refinement (or rather a "smallest possible amount" refinement) */ |
|
| 940 |
|
|
| 941 |
int32_t iSAD; |
const int32_t iEdgedWidth = pParam->edged_width; |
|
VECTOR backupMV = *currMV; |
|
| 942 |
|
|
| 943 |
CHECK_MV8_CANDIDATE(backupMV.x-1,backupMV.y-1); |
int i, iDirection, mask; |
| 944 |
CHECK_MV8_CANDIDATE(backupMV.x ,backupMV.y-1); |
VECTOR currentMV, pmv[7]; |
| 945 |
CHECK_MV8_CANDIDATE(backupMV.x+1,backupMV.y-1); |
MainSearchFunc *MainSearchPtr; |
| 946 |
CHECK_MV8_CANDIDATE(backupMV.x-1,backupMV.y); |
int32_t iMinSAD = MV_MAX_ERROR; |
| 947 |
CHECK_MV8_CANDIDATE(backupMV.x+1,backupMV.y); |
SearchData Data; |
| 948 |
CHECK_MV8_CANDIDATE(backupMV.x-1,backupMV.y+1); |
|
| 949 |
CHECK_MV8_CANDIDATE(backupMV.x ,backupMV.y+1); |
Data.iMinSAD = &iMinSAD; |
| 950 |
CHECK_MV8_CANDIDATE(backupMV.x+1,backupMV.y+1); |
Data.Cur = pCur->y + (x + y * iEdgedWidth) * 16; |
| 951 |
|
Data.iEdgedWidth = iEdgedWidth; |
| 952 |
|
Data.currentMV = ¤tMV; |
| 953 |
|
Data.iMinSAD = &iMinSAD; |
| 954 |
|
Data.Ref = pRef + (x + y * iEdgedWidth) * 16; |
| 955 |
|
Data.RefH = pRefH + (x + y * iEdgedWidth) * 16; |
| 956 |
|
Data.RefV = pRefV + (x + y * iEdgedWidth) * 16; |
| 957 |
|
Data.RefHV = pRefHV + (x + y * iEdgedWidth) * 16; |
| 958 |
|
|
| 959 |
|
Data.iQuant = iQuant; |
| 960 |
|
Data.iFcode = iFcode; |
| 961 |
|
Data.predMV = *predMV; |
| 962 |
|
|
| 963 |
|
get_range(&Data.min_dx, &Data.max_dx, &Data.min_dy, &Data.max_dy, x, y, 16, |
| 964 |
|
pParam->width, pParam->height, iFcode); |
| 965 |
|
|
| 966 |
|
if (!(MotionFlags & PMV_HALFPEL16)) { |
| 967 |
|
Data.min_dx = EVEN(Data.min_dx); |
| 968 |
|
Data.max_dx = EVEN(Data.max_dx); |
| 969 |
|
Data.min_dy = EVEN(Data.min_dy); |
| 970 |
|
Data.max_dy = EVEN(Data.max_dy); } // no-halpel and b-frames. do we need it? |
| 971 |
|
|
| 972 |
|
|
| 973 |
|
pmv[0] = Data.predMV; |
| 974 |
|
PreparePredictionsBF(pmv, x, y, pParam->mb_width, |
| 975 |
|
pMB, mode_current); |
| 976 |
|
|
| 977 |
|
currentMV.x = currentMV.y = 0; |
| 978 |
|
|
| 979 |
|
CheckCandidate = CheckCandidate16no4v; |
| 980 |
|
|
| 981 |
|
// main loop. checking all predictions |
| 982 |
|
for (i = 0; i < 8; i++) { |
| 983 |
|
if (!(mask = make_mask(pmv, i)) ) continue; |
| 984 |
|
CheckCandidate16no4v(pmv[i].x, pmv[i].y, mask, &iDirection, &Data); |
| 985 |
|
} |
| 986 |
|
|
| 987 |
|
if (MotionFlags & PMV_USESQUARES16) |
| 988 |
|
MainSearchPtr = SquareSearch; |
| 989 |
|
else if (MotionFlags & PMV_ADVANCEDDIAMOND16) |
| 990 |
|
MainSearchPtr = AdvDiamondSearch; |
| 991 |
|
else MainSearchPtr = DiamondSearch; |
| 992 |
|
|
| 993 |
|
(*MainSearchPtr)(currentMV.x, currentMV.y, &Data, 255); |
| 994 |
|
|
| 995 |
|
if (MotionFlags & PMV_HALFPELREFINE16) HalfpelRefine(&Data); |
| 996 |
|
|
| 997 |
|
// three bits are needed to code backward mode. four for forward |
| 998 |
|
// we treat the bits just like they were vector's |
| 999 |
|
if (mode_current == MODE_FORWARD) iMinSAD += 4 * lambda_vec16[iQuant]; |
| 1000 |
|
else iMinSAD += 3 * lambda_vec16[iQuant]; |
| 1001 |
|
|
| 1002 |
|
|
| 1003 |
|
if (iMinSAD < *best_sad) { |
| 1004 |
|
*best_sad = iMinSAD; |
| 1005 |
|
pMB->mode = mode_current; |
| 1006 |
|
pMB->pmvs[0].x = currentMV.x - predMV->x; |
| 1007 |
|
pMB->pmvs[0].y = currentMV.y - predMV->y; |
| 1008 |
|
if (mode_current == MODE_FORWARD) pMB->mvs[0] = currentMV; |
| 1009 |
|
else pMB->b_mvs[0] = currentMV; |
| 1010 |
|
} |
| 1011 |
|
|
| 1012 |
|
} |
| 1013 |
|
|
| 1014 |
|
static int32_t |
| 1015 |
|
SearchDirect(const uint8_t * const f_Ref, |
| 1016 |
|
const uint8_t * const f_RefH, |
| 1017 |
|
const uint8_t * const f_RefV, |
| 1018 |
|
const uint8_t * const f_RefHV, |
| 1019 |
|
const uint8_t * const b_Ref, |
| 1020 |
|
const uint8_t * const b_RefH, |
| 1021 |
|
const uint8_t * const b_RefV, |
| 1022 |
|
const uint8_t * const b_RefHV, |
| 1023 |
|
const IMAGE * const pCur, |
| 1024 |
|
const int x, const int y, |
| 1025 |
|
const uint32_t MotionFlags, |
| 1026 |
|
const uint32_t iQuant, |
| 1027 |
|
const int32_t TRB, const int32_t TRD, |
| 1028 |
|
const MBParam * const pParam, |
| 1029 |
|
MACROBLOCK * const pMB, |
| 1030 |
|
const MACROBLOCK * const b_mb, |
| 1031 |
|
int32_t * const best_sad) |
| 1032 |
|
|
| 1033 |
|
{ |
| 1034 |
|
const uint32_t iEdgedWidth = pParam->edged_width; |
| 1035 |
|
int32_t iMinSAD = 0, skip_sad; |
| 1036 |
|
int k; |
| 1037 |
|
VECTOR currentMV; |
| 1038 |
|
MainSearchFunc *MainSearchPtr; |
| 1039 |
|
SearchData Data; |
| 1040 |
|
|
| 1041 |
|
Data.iMinSAD = &iMinSAD; |
| 1042 |
|
Data.Cur = pCur->y + x * 16 + y * 16 * iEdgedWidth; |
| 1043 |
|
Data.iEdgedWidth = iEdgedWidth; |
| 1044 |
|
Data.currentMV = ¤tMV; |
| 1045 |
|
Data.iQuant = iQuant; |
| 1046 |
|
Data.referencemv = b_mb->mvs; |
| 1047 |
|
|
| 1048 |
|
Data.Ref= f_Ref + (x + iEdgedWidth*y) * 16; |
| 1049 |
|
Data.RefH = f_RefH + (x + iEdgedWidth*y) * 16; |
| 1050 |
|
Data.RefV = f_RefV + (x + iEdgedWidth*y) * 16; |
| 1051 |
|
Data.RefHV = f_RefHV + (x + iEdgedWidth*y) * 16; |
| 1052 |
|
Data.bRef = b_Ref + (x + iEdgedWidth*y) * 16; |
| 1053 |
|
Data.bRefH = b_RefH + (x + iEdgedWidth*y) * 16; |
| 1054 |
|
Data.bRefV = b_RefV + (x + iEdgedWidth*y) * 16; |
| 1055 |
|
Data.bRefHV = b_RefHV + (x + iEdgedWidth*y) * 16; |
| 1056 |
|
/* |
| 1057 |
|
//What we do here is a complicated version of CheckCandidateDirect(0,0); |
| 1058 |
|
get_range(&Data.min_dx, &Data.max_dx, &Data.min_dy, &Data.max_dy, x, y, 16, pParam->width, pParam->height, 19); |
| 1059 |
|
|
| 1060 |
return iMinSAD; |
*/ |
| 1061 |
|
Data.max_dx = 2 * pParam->width - 2 * (x) * 16; |
| 1062 |
|
Data.max_dy = 2 * pParam->height - 2 * (y) * 16; |
| 1063 |
|
Data.min_dx = -(2 * 16 + 2 * (x) * 16); |
| 1064 |
|
Data.min_dy = -(2 * 16 + 2 * (y) * 16); |
| 1065 |
|
|
| 1066 |
|
for (k = 0; k < 4; k++) { |
| 1067 |
|
pMB->mvs[k].x = Data.directmvF[k].x = ((TRB * Data.referencemv[k].x) / TRD); |
| 1068 |
|
pMB->b_mvs[k].x = Data.directmvB[k].x = ((TRB - TRD) * Data.referencemv[k].x) / TRD; |
| 1069 |
|
pMB->mvs[k].y = Data.directmvF[k].y = ((TRB * Data.referencemv[k].y) / TRD); |
| 1070 |
|
pMB->b_mvs[k].y = Data.directmvB[k].y = ((TRB - TRD) * Data.referencemv[k].y) / TRD; |
| 1071 |
|
|
| 1072 |
|
if (( pMB->mvs[k].x > Data.max_dx ) || ( pMB->mvs[k].x < Data.min_dx ) |
| 1073 |
|
|| ( pMB->mvs[k].y > Data.max_dy ) || ( pMB->mvs[k].y < Data.min_dy ) |
| 1074 |
|
|| ( pMB->b_mvs[k].x > Data.max_dx ) || ( pMB->b_mvs[k].x < Data.min_dx ) |
| 1075 |
|
|| ( pMB->b_mvs[k].y > Data.max_dy ) || ( pMB->b_mvs[k].y < Data.min_dy )) { |
| 1076 |
|
/* |
| 1077 |
|
fprintf(debug, "\nERROR - out of range : vector %d,%d and %d,%d\n", pMB->mvs[k].x, pMB->mvs[k].y,pMB->b_mvs[k].x,pMB->b_mvs[k].y ); |
| 1078 |
|
fprintf(debug, " range is x: %d..%d y: %d..%d \n", Data.min_dx,Data.max_dx,Data.min_dy,Data.max_dy); |
| 1079 |
|
fprintf(debug,"macroblock %d, %d \n", x, y); |
| 1080 |
|
fprintf(debug, "direct MV is %d,%d \n", directmv[k].x, directmv[k].y); |
| 1081 |
|
*/ |
| 1082 |
|
*best_sad = 256*4096; // in that case, we won't use direct mode |
| 1083 |
|
pMB->mode = MODE_DIRECT; // just to make sure it doesn't say "MODE_DIRECT_NONE_MV" |
| 1084 |
|
pMB->b_mvs[0].x = pMB->b_mvs[0].y = 0; /* because backwards and interpol might rely on this */ |
| 1085 |
|
return 0; } |
| 1086 |
|
|
| 1087 |
|
|
| 1088 |
|
if (b_mb->mode != MODE_INTER4V) { |
| 1089 |
|
iMinSAD = sad16bi(Data.Cur, |
| 1090 |
|
get_ref_mv(f_Ref, f_RefH, f_RefV, f_RefHV, |
| 1091 |
|
x, y, 16, &pMB->mvs[0], iEdgedWidth), |
| 1092 |
|
get_ref_mv(b_Ref, b_RefH, b_RefV, b_RefHV, |
| 1093 |
|
x, y, 16, &pMB->b_mvs[0], iEdgedWidth), iEdgedWidth); |
| 1094 |
|
|
| 1095 |
|
Data.directmvF[1] = Data.directmvF[2] = Data.directmvF[3] = Data.directmvF[0]; |
| 1096 |
|
Data.directmvB[1] = Data.directmvB[2] = Data.directmvB[3] = Data.directmvB[0]; |
| 1097 |
|
break; |
| 1098 |
|
} |
| 1099 |
|
iMinSAD += sad8bi(Data.Cur + (k&1)*8 + (k>>1)* 8 * iEdgedWidth, |
| 1100 |
|
get_ref_mv(f_Ref, f_RefH, f_RefV, f_RefHV, |
| 1101 |
|
(2*x+(k&1)), (2*y+(k>>1)), 8, &pMB->mvs[k], iEdgedWidth), |
| 1102 |
|
get_ref_mv(b_Ref, b_RefH, b_RefV, b_RefHV, |
| 1103 |
|
(2*x+(k&1)), (2*y+(k>>1)), 8, &pMB->b_mvs[k], iEdgedWidth), |
| 1104 |
|
iEdgedWidth); |
| 1105 |
} |
} |
| 1106 |
|
|
| 1107 |
|
// skip decision |
| 1108 |
#define PMV_HALFPEL8 (PMV_HALFPELDIAMOND8|PMV_HALFPELREFINE8) |
if (iMinSAD < (int32_t)iQuant * SKIP_THRESH_B) { |
| 1109 |
|
pMB->mode = MODE_DIRECT_NONE_MV; |
| 1110 |
int32_t PMVfastSearch8( |
return iMinSAD; } |
| 1111 |
const uint8_t * const pRef, |
|
| 1112 |
const uint8_t * const pRefH, |
skip_sad = iMinSAD; |
| 1113 |
const uint8_t * const pRefV, |
iMinSAD += 2 * lambda_vec16[iQuant]; // 2 bits needed to code vector 0,0 |
| 1114 |
const uint8_t * const pRefHV, |
currentMV.x = currentMV.y = 0; |
| 1115 |
|
if (b_mb->mode == MODE_INTER4V) |
| 1116 |
|
CheckCandidate = CheckCandidateDirect; |
| 1117 |
|
else CheckCandidate = CheckCandidateDirectno4v; |
| 1118 |
|
|
| 1119 |
|
// DIRECT MODE DELTA VECTOR SEARCH. |
| 1120 |
|
// This has to be made more effective, but at the moment I'm happy it's running at all |
| 1121 |
|
|
| 1122 |
|
if (MotionFlags & PMV_USESQUARES16) MainSearchPtr = SquareSearch; |
| 1123 |
|
else if (MotionFlags & PMV_ADVANCEDDIAMOND16) MainSearchPtr = AdvDiamondSearch; |
| 1124 |
|
else MainSearchPtr = DiamondSearch; |
| 1125 |
|
|
| 1126 |
|
(*MainSearchPtr)(0, 0, &Data, 255); |
| 1127 |
|
|
| 1128 |
|
HalfpelRefine(&Data); |
| 1129 |
|
|
| 1130 |
|
iMinSAD += 1 * lambda_vec16[iQuant]; // one bit is needed to code direct mode. we treat this bit just like it was vector's |
| 1131 |
|
*best_sad = iMinSAD; |
| 1132 |
|
|
| 1133 |
|
if (b_mb->mode == MODE_INTER4V) |
| 1134 |
|
pMB->mode = MODE_DIRECT; |
| 1135 |
|
else pMB->mode = MODE_DIRECT_NO4V; //for faster compensation |
| 1136 |
|
|
| 1137 |
|
pMB->pmvs[3] = currentMV; |
| 1138 |
|
|
| 1139 |
|
for (k = 0; k < 4; k++) { |
| 1140 |
|
pMB->mvs[k].x = Data.directmvF[k].x + currentMV.x; |
| 1141 |
|
pMB->b_mvs[k].x = ((currentMV.x == 0) |
| 1142 |
|
? Data.directmvB[k].x |
| 1143 |
|
: pMB->mvs[k].x - Data.referencemv[k].x); |
| 1144 |
|
pMB->mvs[k].y = (Data.directmvF[k].y + currentMV.y); |
| 1145 |
|
pMB->b_mvs[k].y = ((currentMV.y == 0) |
| 1146 |
|
? Data.directmvB[k].y |
| 1147 |
|
: pMB->mvs[k].y - Data.referencemv[k].y); |
| 1148 |
|
if (b_mb->mode != MODE_INTER4V) { |
| 1149 |
|
pMB->mvs[3] = pMB->mvs[2] = pMB->mvs[1] = pMB->mvs[0]; |
| 1150 |
|
pMB->b_mvs[3] = pMB->b_mvs[2] = pMB->b_mvs[1] = pMB->b_mvs[0]; |
| 1151 |
|
break; |
| 1152 |
|
} |
| 1153 |
|
} |
| 1154 |
|
return 0;//skip_sad; |
| 1155 |
|
} |
| 1156 |
|
|
| 1157 |
|
static __inline void |
| 1158 |
|
SearchInterpolate(const uint8_t * const f_Ref, |
| 1159 |
|
const uint8_t * const f_RefH, |
| 1160 |
|
const uint8_t * const f_RefV, |
| 1161 |
|
const uint8_t * const f_RefHV, |
| 1162 |
|
const uint8_t * const b_Ref, |
| 1163 |
|
const uint8_t * const b_RefH, |
| 1164 |
|
const uint8_t * const b_RefV, |
| 1165 |
|
const uint8_t * const b_RefHV, |
| 1166 |
const IMAGE * const pCur, |
const IMAGE * const pCur, |
| 1167 |
const int x, const int y, |
const int x, const int y, |
| 1168 |
const int start_x, int start_y, |
const uint32_t fcode, |
| 1169 |
|
const uint32_t bcode, |
| 1170 |
const uint32_t MotionFlags, |
const uint32_t MotionFlags, |
| 1171 |
MBParam * const pParam, |
const uint32_t iQuant, |
| 1172 |
MACROBLOCK * const pMBs, |
const MBParam * const pParam, |
| 1173 |
VECTOR * const currMV, |
const VECTOR * const f_predMV, |
| 1174 |
VECTOR * const currPMV) |
const VECTOR * const b_predMV, |
| 1175 |
{ |
MACROBLOCK * const pMB, |
| 1176 |
const uint32_t iWcount = pParam->mb_width; |
int32_t * const best_sad) |
| 1177 |
|
|
| 1178 |
const int32_t iFcode = pParam->fixed_code; |
{ |
| 1179 |
const int32_t iQuant = pParam->quant; |
/* Interpolated MC motion vector search, this is tedious and more complicated because there are |
| 1180 |
const int32_t iWidth = pParam->width; |
two values for everything, always one for backward and one for forward ME. Still, we don't gain |
| 1181 |
const int32_t iHeight = pParam->height; |
much from this search, maybe it should simply be skipped and simply current i_sad16 value used |
| 1182 |
|
as "optimal". */ |
| 1183 |
|
|
| 1184 |
const int32_t iEdgedWidth = pParam->edged_width; |
const int32_t iEdgedWidth = pParam->edged_width; |
| 1185 |
|
|
| 1186 |
const uint8_t * cur = pCur->y + x*8 + y*8*iEdgedWidth; |
int iDirection, i, j; |
| 1187 |
|
int32_t iMinSAD = 256*4096; |
| 1188 |
|
VECTOR currentMV[3]; |
| 1189 |
|
SearchData fData, bData; |
| 1190 |
|
|
| 1191 |
|
|
| 1192 |
|
fData.iMinSAD = bData.iMinSAD = &iMinSAD; |
| 1193 |
|
|
| 1194 |
|
fData.Cur = bData.Cur = pCur->y + (x + y * iEdgedWidth) * 16; |
| 1195 |
|
fData.iEdgedWidth = bData.iEdgedWidth = iEdgedWidth; |
| 1196 |
|
fData.currentMV = currentMV; bData.currentMV = currentMV + 1; |
| 1197 |
|
fData.iQuant = bData.iQuant = iQuant; |
| 1198 |
|
fData.iFcode = bData.bFcode = fcode; fData.bFcode = bData.iFcode = bcode; |
| 1199 |
|
|
| 1200 |
|
|
| 1201 |
|
bData.bRef = fData.Ref = f_Ref + (x + y * iEdgedWidth) * 16; |
| 1202 |
|
bData.bRefH = fData.RefH = f_RefH + (x + y * iEdgedWidth) * 16; |
| 1203 |
|
bData.bRefV = fData.RefV = f_RefV + (x + y * iEdgedWidth) * 16; |
| 1204 |
|
bData.bRefHV = fData.RefHV = f_RefHV + (x + y * iEdgedWidth) * 16; |
| 1205 |
|
bData.Ref = fData.bRef = b_Ref + (x + y * iEdgedWidth) * 16; |
| 1206 |
|
bData.RefH = fData.bRefH = b_RefH + (x + y * iEdgedWidth) * 16; |
| 1207 |
|
bData.RefV = fData.bRefV = b_RefV + (x + y * iEdgedWidth) * 16; |
| 1208 |
|
bData.RefHV = fData.bRefHV = b_RefHV + (x + y * iEdgedWidth) * 16; |
| 1209 |
|
|
| 1210 |
|
bData.bpredMV = fData.predMV = *f_predMV; |
| 1211 |
|
fData.bpredMV = bData.predMV = *b_predMV; |
| 1212 |
|
|
| 1213 |
|
|
| 1214 |
|
currentMV[0] = pMB->mvs[0]; |
| 1215 |
|
currentMV[1] = pMB->b_mvs[0]; |
| 1216 |
|
get_range(&fData.min_dx, &fData.max_dx, &fData.min_dy, &fData.max_dy, x, y, 16, pParam->width, pParam->height, fcode); |
| 1217 |
|
get_range(&bData.min_dx, &bData.max_dx, &bData.min_dy, &bData.max_dy, x, y, 16, pParam->width, pParam->height, bcode); |
| 1218 |
|
|
| 1219 |
|
CheckCandidateInt(currentMV[0].x, currentMV[0].y, 255, &iDirection, &fData); |
| 1220 |
|
|
| 1221 |
|
//diamond. I wish we could use normal mainsearch functions (square, advdiamond) |
| 1222 |
|
|
| 1223 |
|
do { |
| 1224 |
|
iDirection = 255; |
| 1225 |
|
// forward MV moves |
| 1226 |
|
i = currentMV[0].x; j = currentMV[0].y; |
| 1227 |
|
|
| 1228 |
|
CheckCandidateInt(i + 2, j, 0, &iDirection, &fData); |
| 1229 |
|
CheckCandidateInt(i, j + 2, 0, &iDirection, &fData); |
| 1230 |
|
CheckCandidateInt(i - 2, j, 0, &iDirection, &fData); |
| 1231 |
|
CheckCandidateInt(i, j - 2, 0, &iDirection, &fData); |
| 1232 |
|
|
| 1233 |
|
// backward MV moves |
| 1234 |
|
i = currentMV[1].x; j = currentMV[1].y; |
| 1235 |
|
currentMV[2] = currentMV[0]; |
| 1236 |
|
|
| 1237 |
|
CheckCandidateInt(i + 2, j, 0, &iDirection, &bData); |
| 1238 |
|
CheckCandidateInt(i, j + 2, 0, &iDirection, &bData); |
| 1239 |
|
CheckCandidateInt(i - 2, j, 0, &iDirection, &bData); |
| 1240 |
|
CheckCandidateInt(i, j - 2, 0, &iDirection, &bData); |
| 1241 |
|
|
| 1242 |
|
} while (!(iDirection)); |
| 1243 |
|
|
| 1244 |
|
/* halfpel refinement. luckly we can use normal halfpel function for it */ |
| 1245 |
|
|
| 1246 |
|
if (MotionFlags & PMV_HALFPELREFINE16) { |
| 1247 |
|
CheckCandidate = CheckCandidateInt; |
| 1248 |
|
HalfpelRefine(&fData); |
| 1249 |
|
currentMV[2] = currentMV[0]; |
| 1250 |
|
HalfpelRefine(&bData); |
| 1251 |
|
} |
| 1252 |
|
|
| 1253 |
|
// two bits are needed to code interpolate mode. we treat the bits just like they were vector's |
| 1254 |
|
iMinSAD += 2 * lambda_vec16[iQuant]; |
| 1255 |
|
if (iMinSAD < *best_sad) { |
| 1256 |
|
*best_sad = iMinSAD; |
| 1257 |
|
pMB->mvs[0] = currentMV[0]; |
| 1258 |
|
pMB->b_mvs[0] = currentMV[1]; |
| 1259 |
|
pMB->mode = MODE_INTERPOLATE; |
| 1260 |
|
|
| 1261 |
|
pMB->pmvs[1].x = pMB->mvs[0].x - f_predMV->x; |
| 1262 |
|
pMB->pmvs[1].y = pMB->mvs[0].y - f_predMV->y; |
| 1263 |
|
pMB->pmvs[0].x = pMB->b_mvs[0].x - b_predMV->x; |
| 1264 |
|
pMB->pmvs[0].y = pMB->b_mvs[0].y - b_predMV->y; |
| 1265 |
|
} |
| 1266 |
|
} |
| 1267 |
|
|
| 1268 |
|
void |
| 1269 |
|
MotionEstimationBVOP(MBParam * const pParam, |
| 1270 |
|
FRAMEINFO * const frame, |
| 1271 |
|
const int32_t time_bp, |
| 1272 |
|
const int32_t time_pp, |
| 1273 |
|
// forward (past) reference |
| 1274 |
|
const MACROBLOCK * const f_mbs, |
| 1275 |
|
const IMAGE * const f_ref, |
| 1276 |
|
const IMAGE * const f_refH, |
| 1277 |
|
const IMAGE * const f_refV, |
| 1278 |
|
const IMAGE * const f_refHV, |
| 1279 |
|
// backward (future) reference |
| 1280 |
|
const MACROBLOCK * const b_mbs, |
| 1281 |
|
const IMAGE * const b_ref, |
| 1282 |
|
const IMAGE * const b_refH, |
| 1283 |
|
const IMAGE * const b_refV, |
| 1284 |
|
const IMAGE * const b_refHV) |
| 1285 |
|
{ |
| 1286 |
|
uint32_t i, j; |
| 1287 |
|
int32_t best_sad, skip_sad; |
| 1288 |
|
int f_count = 0, b_count = 0, i_count = 0, d_count = 0, n_count = 0; |
| 1289 |
|
static const VECTOR zeroMV={0,0}; |
| 1290 |
|
|
| 1291 |
int32_t iDiamondSize; |
VECTOR f_predMV, b_predMV; /* there is no prediction for direct mode*/ |
| 1292 |
|
|
| 1293 |
int32_t min_dx; |
const int32_t TRB = time_pp - time_bp; |
| 1294 |
int32_t max_dx; |
const int32_t TRD = time_pp; |
|
int32_t min_dy; |
|
|
int32_t max_dy; |
|
| 1295 |
|
|
| 1296 |
VECTOR pmv[4]; |
// note: i==horizontal, j==vertical |
|
int32_t psad[4]; |
|
|
VECTOR newMV; |
|
|
VECTOR backupMV; |
|
| 1297 |
|
|
| 1298 |
MACROBLOCK * const pMB = pMBs + (x>>1) + (y>>1) * iWcount; |
for (j = 0; j < pParam->mb_height; j++) { |
| 1299 |
|
|
| 1300 |
static int32_t threshA,threshB; |
f_predMV = b_predMV = zeroMV; /* prediction is reset at left boundary */ |
|
int32_t iFound,bPredEq; |
|
|
int32_t iMinSAD,iSAD; |
|
| 1301 |
|
|
| 1302 |
int32_t iSubBlock = ((y&1)<<1) + (x&1); |
for (i = 0; i < pParam->mb_width; i++) { |
| 1303 |
|
MACROBLOCK * const pMB = frame->mbs + i + j * pParam->mb_width; |
| 1304 |
|
const MACROBLOCK * const b_mb = b_mbs + i + j * pParam->mb_width; |
| 1305 |
|
|
| 1306 |
/* Get maximum range */ |
/* special case, if collocated block is SKIPed: encoding is forward (0,0), cpb=0 without further ado */ |
| 1307 |
get_range(&min_dx, &max_dx, &min_dy, &max_dy, |
if (b_mb->mode == MODE_NOT_CODED) { |
| 1308 |
x, y, 8, iWidth, iHeight, iFcode); |
pMB->mode = MODE_NOT_CODED; |
| 1309 |
|
continue; |
| 1310 |
|
} |
| 1311 |
|
|
| 1312 |
/* we work with abs. MVs, not relative to prediction, so range is relative to 0,0 */ |
/* direct search comes first, because it (1) checks for SKIP-mode |
| 1313 |
|
and (2) sets very good predictions for forward and backward search */ |
| 1314 |
|
|
| 1315 |
if (!(MotionFlags & PMV_HALFPELDIAMOND8 )) |
skip_sad = SearchDirect(f_ref->y, f_refH->y, f_refV->y, f_refHV->y, |
| 1316 |
{ min_dx = EVEN(min_dx); |
b_ref->y, b_refH->y, b_refV->y, b_refHV->y, |
| 1317 |
max_dx = EVEN(max_dx); |
&frame->image, |
| 1318 |
min_dy = EVEN(min_dy); |
i, j, |
| 1319 |
max_dy = EVEN(max_dy); |
frame->motion_flags, |
| 1320 |
} /* because we might use IF (dx>max_dx) THEN dx=max_dx; */ |
frame->quant, |
| 1321 |
|
TRB, TRD, |
| 1322 |
|
pParam, |
| 1323 |
|
pMB, b_mb, |
| 1324 |
|
&best_sad); |
| 1325 |
|
|
| 1326 |
|
if (!(frame->global_flags & XVID_HALFPEL)) best_sad = skip_sad = 256*4096; |
| 1327 |
|
else |
| 1328 |
|
if (pMB->mode == MODE_DIRECT_NONE_MV) { n_count++; continue; } |
| 1329 |
|
|
| 1330 |
bPredEq = get_pmvdata(pMBs, (x>>1), (y>>1), iWcount, iSubBlock, pmv, psad); |
// best_sad = 256*4096; //uncomment to disable Directsearch. |
| 1331 |
|
// To disable any other mode, just comment the function call |
| 1332 |
|
|
| 1333 |
if ((x==0) && (y==0) ) |
// forward search |
| 1334 |
{ |
SearchBF(f_ref->y, f_refH->y, f_refV->y, f_refHV->y, |
| 1335 |
threshA = 512/4; |
&frame->image, i, j, |
| 1336 |
threshB = 1024/4; |
frame->motion_flags, |
| 1337 |
|
frame->quant, frame->fcode, pParam, |
| 1338 |
|
pMB, &f_predMV, &best_sad, |
| 1339 |
|
MODE_FORWARD); |
| 1340 |
|
|
| 1341 |
|
// backward search |
| 1342 |
|
SearchBF(b_ref->y, b_refH->y, b_refV->y, b_refHV->y, |
| 1343 |
|
&frame->image, i, j, |
| 1344 |
|
frame->motion_flags, |
| 1345 |
|
frame->quant, frame->bcode, pParam, |
| 1346 |
|
pMB, &b_predMV, &best_sad, |
| 1347 |
|
MODE_BACKWARD); |
| 1348 |
|
|
| 1349 |
|
// interpolate search comes last, because it uses data from forward and backward as prediction |
| 1350 |
|
|
| 1351 |
|
SearchInterpolate(f_ref->y, f_refH->y, f_refV->y, f_refHV->y, |
| 1352 |
|
b_ref->y, b_refH->y, b_refV->y, b_refHV->y, |
| 1353 |
|
&frame->image, |
| 1354 |
|
i, j, |
| 1355 |
|
frame->fcode, frame->bcode, |
| 1356 |
|
frame->motion_flags, |
| 1357 |
|
frame->quant, pParam, |
| 1358 |
|
&f_predMV, &b_predMV, |
| 1359 |
|
pMB, &best_sad); |
| 1360 |
|
|
| 1361 |
|
switch (pMB->mode) { |
| 1362 |
|
case MODE_FORWARD: |
| 1363 |
|
f_count++; |
| 1364 |
|
f_predMV = pMB->mvs[0]; |
| 1365 |
|
break; |
| 1366 |
|
case MODE_BACKWARD: |
| 1367 |
|
b_count++; |
| 1368 |
|
b_predMV = pMB->b_mvs[0]; |
| 1369 |
|
break; |
| 1370 |
|
case MODE_INTERPOLATE: |
| 1371 |
|
i_count++; |
| 1372 |
|
f_predMV = pMB->mvs[0]; |
| 1373 |
|
b_predMV = pMB->b_mvs[0]; |
| 1374 |
|
break; |
| 1375 |
|
case MODE_DIRECT: |
| 1376 |
|
case MODE_DIRECT_NO4V: |
| 1377 |
|
d_count++; |
| 1378 |
|
break; |
| 1379 |
|
default: |
| 1380 |
|
break; |
| 1381 |
|
} |
| 1382 |
|
} |
| 1383 |
|
} |
| 1384 |
|
|
| 1385 |
|
// fprintf(debug,"B-Stat: F: %04d B: %04d I: %04d D: %04d, N: %04d\n", |
| 1386 |
|
// f_count,b_count,i_count,d_count,n_count); |
| 1387 |
|
|
| 1388 |
} |
} |
| 1389 |
else |
|
| 1390 |
|
/* Hinted ME starts here */ |
| 1391 |
|
|
| 1392 |
|
static __inline void |
| 1393 |
|
Search8hinted( const SearchData * const OldData, |
| 1394 |
|
const int x, const int y, |
| 1395 |
|
const uint32_t MotionFlags, |
| 1396 |
|
const MBParam * const pParam, |
| 1397 |
|
MACROBLOCK * const pMB, |
| 1398 |
|
const MACROBLOCK * const pMBs, |
| 1399 |
|
const int block) |
| 1400 |
{ |
{ |
| 1401 |
threshA = psad[0]/4; /* good estimate */ |
SearchData Data; |
| 1402 |
threshB = threshA+256/4; |
MainSearchFunc *MainSearchPtr; |
|
if (threshA< 512/4) threshA = 512/4; |
|
|
if (threshA>1024/4) threshA = 1024/4; |
|
|
if (threshB>1792/4) threshB = 1792/4; |
|
|
} |
|
| 1403 |
|
|
| 1404 |
iFound=0; |
Data.predMV = get_pmv2(pMBs, pParam->mb_width, 0, x/2 , y/2, block); |
| 1405 |
|
Data.iMinSAD = OldData->iMinSAD + 1 + block; |
| 1406 |
/* Step 2: Calculate Distance= |MedianMVX| + |MedianMVY| where MedianMV is the motion |
Data.currentMV = OldData->currentMV+1+block; |
| 1407 |
vector of the median. |
Data.iFcode = OldData->iFcode; |
| 1408 |
If PredEq=1 and MVpredicted = Previous Frame MV, set Found=2 |
Data.iQuant = OldData->iQuant; |
|
*/ |
|
| 1409 |
|
|
| 1410 |
if ((bPredEq) && (MVequal(pmv[0],pMB->mvs[iSubBlock]) ) ) |
Data.Ref = OldData->Ref + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
| 1411 |
iFound=2; |
Data.RefH = OldData->RefH + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
| 1412 |
|
Data.RefV = OldData->RefV + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
| 1413 |
|
Data.RefHV = OldData->RefHV + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
| 1414 |
|
Data.iEdgedWidth = pParam->edged_width; |
| 1415 |
|
Data.Cur = OldData->Cur + 8 * ((block&1) + pParam->edged_width*(block>>1)); |
| 1416 |
|
|
| 1417 |
/* Step 3: If Distance>0 or thresb<1536 or PredEq=1 Select small Diamond Search. |
CheckCandidate = CheckCandidate8; |
|
Otherwise select large Diamond Search. |
|
|
*/ |
|
| 1418 |
|
|
| 1419 |
if ( (pmv[0].x != 0) || (pmv[0].y != 0) || (threshB<1536/4) || (bPredEq) ) |
if (block != 0) |
| 1420 |
iDiamondSize=1; // 1 halfpel! |
*(Data.iMinSAD) += lambda_vec8[Data.iQuant] * |
| 1421 |
else |
d_mv_bits( Data.currentMV->x - Data.predMV.x, |
| 1422 |
iDiamondSize=2; // 2 halfpel = 1 full pixel! |
Data.currentMV->y - Data.predMV.y, |
| 1423 |
|
Data.iFcode); |
| 1424 |
|
|
|
if (!(MotionFlags & PMV_HALFPELDIAMOND8) ) |
|
|
iDiamondSize*=2; |
|
| 1425 |
|
|
| 1426 |
/* Step 4: Calculate SAD around the Median prediction. |
get_range(&Data.min_dx, &Data.max_dx, &Data.min_dy, &Data.max_dy, x, y, 8, |
| 1427 |
MinSAD=SAD |
pParam->width, pParam->height, OldData->iFcode); |
|
If Motion Vector equal to Previous frame motion vector |
|
|
and MinSAD<PrevFrmSAD goto Step 10. |
|
|
If SAD<=256 goto Step 10. |
|
|
*/ |
|
| 1428 |
|
|
| 1429 |
|
if (pMB->mode == MODE_INTER4V) { |
| 1430 |
|
int dummy; |
| 1431 |
|
CheckCandidate8(pMB->mvs[block].x, pMB->mvs[block].y, 0, &dummy, &Data); } |
| 1432 |
|
|
| 1433 |
// Prepare for main loop |
if (MotionFlags & PMV_USESQUARES8) MainSearchPtr = SquareSearch; |
| 1434 |
|
else if (MotionFlags & PMV_ADVANCEDDIAMOND8) MainSearchPtr = AdvDiamondSearch; |
| 1435 |
|
else MainSearchPtr = DiamondSearch; |
| 1436 |
|
|
| 1437 |
currMV->x=start_x; /* start with mv16 */ |
(*MainSearchPtr)(Data.currentMV->x, Data.currentMV->y, &Data, 255); |
|
currMV->y=start_y; |
|
| 1438 |
|
|
| 1439 |
iMinSAD = sad8( cur, |
if (MotionFlags & PMV_HALFPELREFINE8) HalfpelRefine(&Data); |
|
get_ref_mv(pRef, pRefH, pRefV, pRefHV, x, y, 8, currMV, iEdgedWidth), |
|
|
iEdgedWidth); |
|
|
iMinSAD += calc_delta_8(currMV->x - pmv[0].x, currMV->y - pmv[0].y, (uint8_t)iFcode) * iQuant; |
|
| 1440 |
|
|
| 1441 |
if ( (iMinSAD < 256/4 ) || ( (MVequal(*currMV,pMB->mvs[iSubBlock])) && (iMinSAD < pMB->sad8[iSubBlock]) ) ) |
pMB->pmvs[block].x = Data.currentMV->x - Data.predMV.x; |
| 1442 |
{ |
pMB->pmvs[block].y = Data.currentMV->y - Data.predMV.y; |
| 1443 |
if (MotionFlags & PMV_QUICKSTOP8) |
pMB->mvs[block] = *(Data.currentMV); |
| 1444 |
goto step10_8b; |
pMB->sad8[block] = 4 * (*(Data.iMinSAD)); |
|
if (MotionFlags & PMV_EARLYSTOP8) |
|
|
goto step10_8; |
|
| 1445 |
} |
} |
| 1446 |
|
|
|
/* |
|
|
Step 5: Calculate SAD for motion vectors taken from left block, top, top-right, and Previous frame block. |
|
|
Also calculate (0,0) but do not subtract offset. |
|
|
Let MinSAD be the smallest SAD up to this point. |
|
|
If MV is (0,0) subtract offset. ******** WHAT'S THIS 'OFFSET' ??? *********** |
|
|
*/ |
|
| 1447 |
|
|
| 1448 |
// the prediction might be even better than mv16 |
static void |
| 1449 |
CHECK_MV8_CANDIDATE(pmv[0].x,pmv[0].y); |
SearchPhinted ( const uint8_t * const pRef, |
| 1450 |
|
const uint8_t * const pRefH, |
| 1451 |
|
const uint8_t * const pRefV, |
| 1452 |
|
const uint8_t * const pRefHV, |
| 1453 |
|
const IMAGE * const pCur, |
| 1454 |
|
const int x, |
| 1455 |
|
const int y, |
| 1456 |
|
const uint32_t MotionFlags, |
| 1457 |
|
const uint32_t iQuant, |
| 1458 |
|
const uint32_t iFcode, |
| 1459 |
|
const MBParam * const pParam, |
| 1460 |
|
const MACROBLOCK * const pMBs, |
| 1461 |
|
int inter4v, |
| 1462 |
|
MACROBLOCK * const pMB) |
| 1463 |
|
{ |
| 1464 |
|
|
| 1465 |
// (0,0) is always possible |
const int32_t iEdgedWidth = pParam->edged_width; |
|
CHECK_MV8_ZERO; |
|
| 1466 |
|
|
| 1467 |
// previous frame MV is always possible |
int i; |
| 1468 |
CHECK_MV8_CANDIDATE(pMB->mvs[iSubBlock].x,pMB->mvs[iSubBlock].y); |
VECTOR currentMV[5]; |
| 1469 |
|
int32_t iMinSAD[5]; |
| 1470 |
|
int32_t temp[5]; |
| 1471 |
|
MainSearchFunc * MainSearchPtr; |
| 1472 |
|
SearchData Data; |
| 1473 |
|
|
| 1474 |
|
Data.predMV = get_pmv2(pMBs, pParam->mb_width, 0, x, y, 0); |
| 1475 |
|
get_range(&Data.min_dx, &Data.max_dx, &Data.min_dy, &Data.max_dy, x, y, 16, |
| 1476 |
|
pParam->width, pParam->height, iFcode); |
| 1477 |
|
|
| 1478 |
|
Data.Cur = pCur->y + (x + y * iEdgedWidth) * 16; |
| 1479 |
|
Data.iEdgedWidth = iEdgedWidth; |
| 1480 |
|
Data.currentMV = currentMV; |
| 1481 |
|
Data.iMinSAD = iMinSAD; |
| 1482 |
|
Data.Ref = pRef + (x + iEdgedWidth*y)*16; |
| 1483 |
|
Data.RefH = pRefH + (x + iEdgedWidth*y) * 16; |
| 1484 |
|
Data.RefV = pRefV + (x + iEdgedWidth*y) * 16; |
| 1485 |
|
Data.RefHV = pRefHV + (x + iEdgedWidth*y) * 16; |
| 1486 |
|
Data.temp = temp; |
| 1487 |
|
Data.iQuant = iQuant; |
| 1488 |
|
Data.iFcode = iFcode; |
| 1489 |
|
|
| 1490 |
|
if (!(MotionFlags & PMV_HALFPEL16)) { |
| 1491 |
|
Data.min_dx = EVEN(Data.min_dx); |
| 1492 |
|
Data.max_dx = EVEN(Data.max_dx); |
| 1493 |
|
Data.min_dy = EVEN(Data.min_dy); |
| 1494 |
|
Data.max_dy = EVEN(Data.max_dy); |
| 1495 |
|
} |
| 1496 |
|
|
| 1497 |
|
for(i = 0; i < 5; i++) iMinSAD[i] = MV_MAX_ERROR; |
| 1498 |
|
|
| 1499 |
|
if (pMB->dquant != NO_CHANGE) inter4v = 0; |
| 1500 |
|
|
| 1501 |
|
if (inter4v) |
| 1502 |
|
CheckCandidate = CheckCandidate16; |
| 1503 |
|
else CheckCandidate = CheckCandidate16no4v; |
| 1504 |
|
|
| 1505 |
|
|
| 1506 |
|
pMB->mvs[0].x = EVEN(pMB->mvs[0].x); |
| 1507 |
|
pMB->mvs[0].y = EVEN(pMB->mvs[0].y); |
| 1508 |
|
if (pMB->mvs[0].x > Data.max_dx) pMB->mvs[0].x = Data.max_dx; // this is in case iFcode changed |
| 1509 |
|
if (pMB->mvs[0].x < Data.min_dx) pMB->mvs[0].x = Data.min_dx; |
| 1510 |
|
if (pMB->mvs[0].y > Data.max_dy) pMB->mvs[0].y = Data.max_dy; |
| 1511 |
|
if (pMB->mvs[0].y < Data.min_dy) pMB->mvs[0].y = Data.min_dy; |
| 1512 |
|
|
| 1513 |
|
CheckCandidate16(pMB->mvs[0].x, pMB->mvs[0].y, 0, &i, &Data); |
| 1514 |
|
|
| 1515 |
|
if (pMB->mode == MODE_INTER4V) |
| 1516 |
|
for (i = 1; i < 4; i++) { // all four vectors will be used as four predictions for 16x16 search |
| 1517 |
|
pMB->mvs[i].x = EVEN(pMB->mvs[i].x); |
| 1518 |
|
pMB->mvs[i].y = EVEN(pMB->mvs[i].y); |
| 1519 |
|
if (!(make_mask(pMB->mvs, i))) |
| 1520 |
|
CheckCandidate16(pMB->mvs[i].x, pMB->mvs[i].y, 0, &i, &Data); |
| 1521 |
|
} |
| 1522 |
|
|
| 1523 |
|
if (MotionFlags & PMV_USESQUARES16) |
| 1524 |
|
MainSearchPtr = SquareSearch; |
| 1525 |
|
else if (MotionFlags & PMV_ADVANCEDDIAMOND16) |
| 1526 |
|
MainSearchPtr = AdvDiamondSearch; |
| 1527 |
|
else MainSearchPtr = DiamondSearch; |
| 1528 |
|
|
| 1529 |
|
(*MainSearchPtr)(currentMV->x, currentMV->y, &Data, 255); |
| 1530 |
|
|
| 1531 |
|
if (MotionFlags & PMV_HALFPELREFINE16) HalfpelRefine(&Data); |
| 1532 |
|
|
| 1533 |
|
if (inter4v) |
| 1534 |
|
for(i = 0; i < 4; i++) |
| 1535 |
|
Search8hinted(&Data, 2*x+(i&1), 2*y+(i>>1), MotionFlags, pParam, pMB, pMBs, i); |
| 1536 |
|
|
| 1537 |
|
if (!(inter4v) || |
| 1538 |
|
(iMinSAD[0] < iMinSAD[1] + iMinSAD[2] + iMinSAD[3] + iMinSAD[4] + IMV16X16 * (int32_t)iQuant )) { |
| 1539 |
|
// INTER MODE |
| 1540 |
|
|
| 1541 |
// left neighbour, if allowed |
pMB->mode = MODE_INTER; |
| 1542 |
if (psad[1] != MV_MAX_ERROR) |
pMB->mv16 = pMB->mvs[0] = pMB->mvs[1] |
| 1543 |
{ |
= pMB->mvs[2] = pMB->mvs[3] = currentMV[0]; |
| 1544 |
if (!(MotionFlags & PMV_HALFPEL8 )) |
|
| 1545 |
{ pmv[1].x = EVEN(pmv[1].x); |
pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = |
| 1546 |
pmv[1].y = EVEN(pmv[1].y); |
pMB->sad8[2] = pMB->sad8[3] = iMinSAD[0]; |
| 1547 |
} |
|
| 1548 |
CHECK_MV8_CANDIDATE(pmv[1].x,pmv[1].y); |
pMB->pmvs[0].x = currentMV[0].x - Data.predMV.x; |
| 1549 |
|
pMB->pmvs[0].y = currentMV[0].y - Data.predMV.y; |
| 1550 |
|
} else { |
| 1551 |
|
// INTER4V MODE; all other things are already set in Search8hinted |
| 1552 |
|
pMB->mode = MODE_INTER4V; |
| 1553 |
|
pMB->sad16 = iMinSAD[1] + iMinSAD[2] + iMinSAD[3] + iMinSAD[4] + IMV16X16 * iQuant; |
| 1554 |
} |
} |
| 1555 |
|
|
|
// top neighbour, if allowed |
|
|
if (psad[2] != MV_MAX_ERROR) |
|
|
{ |
|
|
if (!(MotionFlags & PMV_HALFPEL8 )) |
|
|
{ pmv[2].x = EVEN(pmv[2].x); |
|
|
pmv[2].y = EVEN(pmv[2].y); |
|
| 1556 |
} |
} |
|
CHECK_MV8_CANDIDATE(pmv[2].x,pmv[2].y); |
|
| 1557 |
|
|
| 1558 |
// top right neighbour, if allowed |
void |
| 1559 |
if (psad[3] != MV_MAX_ERROR) |
MotionEstimationHinted( MBParam * const pParam, |
| 1560 |
|
FRAMEINFO * const current, |
| 1561 |
|
FRAMEINFO * const reference, |
| 1562 |
|
const IMAGE * const pRefH, |
| 1563 |
|
const IMAGE * const pRefV, |
| 1564 |
|
const IMAGE * const pRefHV) |
| 1565 |
{ |
{ |
| 1566 |
if (!(MotionFlags & PMV_HALFPEL8 )) |
MACROBLOCK *const pMBs = current->mbs; |
| 1567 |
{ pmv[3].x = EVEN(pmv[3].x); |
const IMAGE *const pCurrent = ¤t->image; |
| 1568 |
pmv[3].y = EVEN(pmv[3].y); |
const IMAGE *const pRef = &reference->image; |
|
} |
|
|
CHECK_MV8_CANDIDATE(pmv[3].x,pmv[3].y); |
|
|
} |
|
|
} |
|
| 1569 |
|
|
| 1570 |
/* Step 6: If MinSAD <= thresa goto Step 10. |
uint32_t x, y; |
|
If Motion Vector equal to Previous frame motion vector and MinSAD<PrevFrmSAD goto Step 10. |
|
|
*/ |
|
| 1571 |
|
|
| 1572 |
if ( (iMinSAD <= threshA) || ( MVequal(*currMV,pMB->mvs[iSubBlock]) && (iMinSAD < pMB->sad8[iSubBlock]) ) ) |
if (sadInit) (*sadInit) (); |
|
{ |
|
|
if (MotionFlags & PMV_QUICKSTOP8) |
|
|
goto step10_8b; |
|
|
if (MotionFlags & PMV_EARLYSTOP8) |
|
|
goto step10_8; |
|
|
} |
|
| 1573 |
|
|
| 1574 |
/************ (Diamond Search) **************/ |
for (y = 0; y < pParam->mb_height; y++) { |
| 1575 |
/* |
for (x = 0; x < pParam->mb_width; x++) { |
| 1576 |
Step 7: Perform Diamond search, with either the small or large diamond. |
int32_t sad00; |
|
If Found=2 only examine one Diamond pattern, and afterwards goto step 10 |
|
|
Step 8: If small diamond, iterate small diamond search pattern until motion vector lies in the center of the diamond. |
|
|
If center then goto step 10. |
|
|
Step 9: If large diamond, iterate large diamond search pattern until motion vector lies in the center. |
|
|
Refine by using small diamond and goto step 10. |
|
|
*/ |
|
| 1577 |
|
|
| 1578 |
backupMV = *currMV; /* save best prediction, actually only for EXTSEARCH */ |
MACROBLOCK *pMB = &pMBs[x + y * pParam->mb_width]; |
| 1579 |
|
|
| 1580 |
/* default: use best prediction as starting point for one call of PMVfast_MainSearch */ |
//intra mode is copied from the first pass. At least for the time being |
| 1581 |
iSAD = PMVfastSearch8_MainSearch(pRef, pRefH, pRefV, pRefHV, cur, |
if ((pMB->mode == MODE_INTRA) || (pMB->mode == MODE_NOT_CODED) ) continue; |
|
x, y, |
|
|
currMV->x, currMV->y, iMinSAD, &newMV, |
|
|
pmv, min_dx, max_dx, min_dy, max_dy, iEdgedWidth, iDiamondSize, iFcode, iQuant, iFound); |
|
| 1582 |
|
|
| 1583 |
if (iSAD < iMinSAD) |
if (!(current->global_flags & XVID_LUMIMASKING)) { |
| 1584 |
{ |
pMB->dquant = NO_CHANGE; |
| 1585 |
*currMV = newMV; |
pMB->quant = current->quant; } |
|
iMinSAD = iSAD; |
|
|
} |
|
| 1586 |
|
|
| 1587 |
if (MotionFlags & PMV_EXTSEARCH8) |
if (pMB->dquant == NO_CHANGE) //no skip otherwise, anyway |
| 1588 |
{ |
sad00 = pMB->sad16 |
| 1589 |
/* extended: search (up to) two more times: orignal prediction and (0,0) */ |
= sad16(pCurrent->y + (x + y * pParam->edged_width) * 16, |
| 1590 |
|
pRef->y + (x + y * pParam->edged_width) * 16, |
| 1591 |
|
pParam->edged_width, 256*4096 ); |
| 1592 |
|
else sad00 = 256*4096; |
| 1593 |
|
|
|
if (!(MVequal(pmv[0],backupMV)) ) |
|
|
{ iSAD = PMVfastSearch16_MainSearch(pRef, pRefH, pRefV, pRefHV, cur, |
|
|
x, y, |
|
|
pmv[0].x, pmv[0].y, iMinSAD, &newMV, |
|
|
pmv, min_dx, max_dx, min_dy, max_dy, iEdgedWidth, iDiamondSize, iFcode, iQuant, iFound); |
|
| 1594 |
|
|
| 1595 |
if (iSAD < iMinSAD) |
//initial skip decision |
| 1596 |
{ |
|
| 1597 |
*currMV = newMV; |
if ( (pMB->dquant == NO_CHANGE) && (sad00 <= MAX_SAD00_FOR_SKIP * pMB->quant) |
| 1598 |
iMinSAD = iSAD; |
&& ( //(pMB->mode == MODE_NOT_CODED) || |
| 1599 |
} |
(SkipDecisionP(pCurrent, pRef, x, y, pParam->edged_width, pMB->quant) )) ) { |
| 1600 |
|
if (sad00 < pMB->quant * INITIAL_SKIP_THRESH) { |
| 1601 |
|
SkipMacroblockP(pMB, sad00); |
| 1602 |
|
continue; } //skipped |
| 1603 |
} |
} |
| 1604 |
|
else sad00 = 256*4096; |
| 1605 |
|
|
| 1606 |
if ( (!(MVzero(pmv[0]))) && (!(MVzero(backupMV))) ) |
if (pMB->mode == MODE_NOT_CODED) |
| 1607 |
{ iSAD = PMVfastSearch16_MainSearch(pRef, pRefH, pRefV, pRefHV, cur, |
SearchP( pRef->y, pRefH->y, pRefV->y, pRefHV->y, pCurrent, x, |
| 1608 |
x, y, |
y, current->motion_flags, pMB->quant, |
| 1609 |
0, 0, iMinSAD, &newMV, |
current->fcode, pParam, pMBs, reference->mbs, |
| 1610 |
pmv, min_dx, max_dx, min_dy, max_dy, iEdgedWidth, iDiamondSize, iFcode, iQuant, iFound); |
current->global_flags & XVID_INTER4V, pMB); |
| 1611 |
|
|
| 1612 |
|
else |
| 1613 |
|
SearchPhinted(pRef->y, pRefH->y, pRefV->y, pRefHV->y, pCurrent, x, |
| 1614 |
|
y, current->motion_flags, pMB->quant, |
| 1615 |
|
current->fcode, pParam, pMBs, |
| 1616 |
|
current->global_flags & XVID_INTER4V, pMB); |
| 1617 |
|
|
| 1618 |
|
/* final skip decision, a.k.a. "the vector you found, really that good?" */ |
| 1619 |
|
if (sad00 < pMB->quant * MAX_SAD00_FOR_SKIP) |
| 1620 |
|
if ((100*pMB->sad16)/(sad00+1) > FINAL_SKIP_THRESH) |
| 1621 |
|
SkipMacroblockP(pMB, sad00); |
| 1622 |
|
|
|
if (iSAD < iMinSAD) |
|
|
{ |
|
|
*currMV = newMV; |
|
|
iMinSAD = iSAD; |
|
| 1623 |
} |
} |
| 1624 |
} |
} |
| 1625 |
} |
} |
| 1626 |
|
|
|
/* Step 10: The motion vector is chosen according to the block corresponding to MinSAD. |
|
|
By performing an optional local half-pixel search, we can refine this result even further. |
|
|
*/ |
|
|
|
|
|
step10_8: |
|
|
if (MotionFlags & PMV_HALFPELREFINE8) // perform final half-pel step |
|
|
iMinSAD = PMVfastSearch8_Refine( pRef, pRefH, pRefV, pRefHV, cur, |
|
|
x, y, |
|
|
currMV, iMinSAD, |
|
|
pmv, min_dx, max_dx, min_dy, max_dy, iFcode, iQuant, iEdgedWidth); |
|
|
|
|
|
step10_8b: |
|
|
|
|
|
currPMV->x = currMV->x - pmv[0].x; |
|
|
currPMV->y = currMV->y - pmv[0].y; |
|
|
|
|
|
return iMinSAD; |
|
|
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