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FFmpeg/libavcodec/motion_est.c

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  1. /*

  2.  * Motion estimation 

  3.  * Copyright (c) 2000,2001 Fabrice Bellard.

  4.  * Copyright (c) 2002-2003 Michael Niedermayer

  5.  * 

  6.  *

  7.  * This library is free software; you can redistribute it and/or

  8.  * modify it under the terms of the GNU Lesser General Public

  9.  * License as published by the Free Software Foundation; either

  10.  * version 2 of the License, or (at your option) any later version.

  11.  *

  12.  * This library is distributed in the hope that it will be useful,

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15.  * Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public

  18.  * License along with this library; if not, write to the Free Software

  19.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  20.  *

  21.  * new Motion Estimation (X1/EPZS) by Michael Niedermayer <michaelni@gmx.at>

  22.  */

  23. #include <stdlib.h>

  24. #include <stdio.h>

  25. #include "avcodec.h"

  26. #include "dsputil.h"

  27. #include "mpegvideo.h"

  28. 

  29. //#undef NDEBUG

  30. //#include <assert.h>

  31. 

  32. #define SQ(a) ((a)*(a))

  33. 

  34. #define P_LEFT P[1]

  35. #define P_TOP P[2]

  36. #define P_TOPRIGHT P[3]

  37. #define P_MEDIAN P[4]

  38. #define P_MV1 P[9]

  39. 

  40. static inline int sad_hpel_motion_search(MpegEncContext * s,

  41. 				  int *mx_ptr, int *my_ptr, int dmin,

  42. 				  int xmin, int ymin, int xmax, int ymax,

  43.                                   int pred_x, int pred_y, Picture *picture,

  44.                                   int n, int size, uint16_t * const mv_penalty);

  45. 

  46. static inline int update_map_generation(MpegEncContext * s)

  47. {

  48.     s->me.map_generation+= 1<<(ME_MAP_MV_BITS*2);

  49.     if(s->me.map_generation==0){

  50.         s->me.map_generation= 1<<(ME_MAP_MV_BITS*2);

  51.         memset(s->me.map, 0, sizeof(uint32_t)*ME_MAP_SIZE);

  52.     }

  53.     return s->me.map_generation;

  54. }

  55. 

  56. /* shape adaptive search stuff */

  57. typedef struct Minima{

  58.     int height;

  59.     int x, y;

  60.     int checked;

  61. }Minima;

  62. 

  63. static int minima_cmp(const void *a, const void *b){

  64.     const Minima *da = (const Minima *) a;

  65.     const Minima *db = (const Minima *) b;

  66.     

  67.     return da->height - db->height;

  68. }

  69.                                   

  70. /* SIMPLE */

  71. #define RENAME(a) simple_ ## a

  72. 

  73. #define CMP(d, x, y, size)\

  74. d = cmp(s, src_y, (ref_y) + (x) + (y)*(stride), stride);

  75. 

  76. #define CMP_HPEL(d, dx, dy, x, y, size)\

  77. {\

  78.     const int dxy= (dx) + 2*(dy);\

  79.     hpel_put[0][dxy](s->me.scratchpad, (ref_y) + (x) + (y)*(stride), stride, (16>>size));\

  80.     d = cmp_sub(s, s->me.scratchpad, src_y, stride);\

  81. }

  82. 

  83. #define CMP_QPEL(d, dx, dy, x, y, size)\

  84. {\

  85.     const int dxy= (dx) + 4*(dy);\

  86.     qpel_put[0][dxy](s->me.scratchpad, (ref_y) + (x) + (y)*(stride), stride);\

  87.     d = cmp_sub(s, s->me.scratchpad, src_y, stride);\

  88. }

  89. 

  90. #include "motion_est_template.c"

  91. #undef RENAME

  92. #undef CMP

  93. #undef CMP_HPEL

  94. #undef CMP_QPEL

  95. #undef INIT

  96. 

  97. /* SIMPLE CHROMA */

  98. #define RENAME(a) simple_chroma_ ## a

  99. 

  100. #define CMP(d, x, y, size)\

  101. d = cmp(s, src_y, (ref_y) + (x) + (y)*(stride), stride);\

  102. if(chroma_cmp){\

  103.     int dxy= ((x)&1) + 2*((y)&1);\

  104.     int c= ((x)>>1) + ((y)>>1)*uvstride;\

  105. \

  106.     chroma_hpel_put[0][dxy](s->me.scratchpad, ref_u + c, uvstride, 8);\

  107.     d += chroma_cmp(s, s->me.scratchpad, src_u, uvstride);\

  108.     chroma_hpel_put[0][dxy](s->me.scratchpad, ref_v + c, uvstride, 8);\

  109.     d += chroma_cmp(s, s->me.scratchpad, src_v, uvstride);\

  110. }

  111. 

  112. #define CMP_HPEL(d, dx, dy, x, y, size)\

  113. {\

  114.     const int dxy= (dx) + 2*(dy);\

  115.     hpel_put[0][dxy](s->me.scratchpad, (ref_y) + (x) + (y)*(stride), stride, (16>>size));\

  116.     d = cmp_sub(s, s->me.scratchpad, src_y, stride);\

  117.     if(chroma_cmp_sub){\

  118.         int cxy= (dxy) | ((x)&1) | (2*((y)&1));\

  119.         int c= ((x)>>1) + ((y)>>1)*uvstride;\

  120.         chroma_hpel_put[0][cxy](s->me.scratchpad, ref_u + c, uvstride, 8);\

  121.         d += chroma_cmp_sub(s, s->me.scratchpad, src_u, uvstride);\

  122.         chroma_hpel_put[0][cxy](s->me.scratchpad, ref_v + c, uvstride, 8);\

  123.         d += chroma_cmp_sub(s, s->me.scratchpad, src_v, uvstride);\

  124.     }\

  125. }

  126. 

  127. #define CMP_QPEL(d, dx, dy, x, y, size)\

  128. {\

  129.     const int dxy= (dx) + 4*(dy);\

  130.     qpel_put[0][dxy](s->me.scratchpad, (ref_y) + (x) + (y)*(stride), stride);\

  131.     d = cmp_sub(s, s->me.scratchpad, src_y, stride);\

  132.     if(chroma_cmp_sub){\

  133.         int cxy, c;\

  134.         int cx= (4*(x) + (dx))/2;\

  135.         int cy= (4*(y) + (dy))/2;\

  136.         cx= (cx>>1)|(cx&1);\

  137.         cy= (cy>>1)|(cy&1);\

  138.         cxy= (cx&1) + 2*(cy&1);\

  139.         c= ((cx)>>1) + ((cy)>>1)*uvstride;\

  140.         chroma_hpel_put[0][cxy](s->me.scratchpad, ref_u + c, uvstride, 8);\

  141.         d += chroma_cmp_sub(s, s->me.scratchpad, src_u, uvstride);\

  142.         chroma_hpel_put[0][cxy](s->me.scratchpad, ref_v + c, uvstride, 8);\

  143.         d += chroma_cmp_sub(s, s->me.scratchpad, src_v, uvstride);\

  144.     }\

  145. }

  146. 

  147. #include "motion_est_template.c"

  148. #undef RENAME

  149. #undef CMP

  150. #undef CMP_HPEL

  151. #undef CMP_QPEL

  152. #undef INIT

  153. 

  154. /* SIMPLE DIRECT HPEL */

  155. #define RENAME(a) simple_direct_hpel_ ## a

  156. //FIXME precalc divisions stuff

  157. 

  158. #define CMP_DIRECT(d, dx, dy, x, y, size, cmp_func)\

  159. if((x) >= xmin && 2*(x) + (dx) <= 2*xmax && (y) >= ymin && 2*(y) + (dy) <= 2*ymax){\

  160.     const int hx= 2*(x) + (dx);\

  161.     const int hy= 2*(y) + (dy);\

  162.     if(s->mv_type==MV_TYPE_8X8){\

  163.         int i;\

  164.         for(i=0; i<4; i++){\

  165.             int fx = s->me.direct_basis_mv[i][0] + hx;\

  166.             int fy = s->me.direct_basis_mv[i][1] + hy;\

  167.             int bx = hx ? fx - s->me.co_located_mv[i][0] : s->me.co_located_mv[i][0]*(time_pb - time_pp)/time_pp + (i &1)*16;\

  168.             int by = hy ? fy - s->me.co_located_mv[i][1] : s->me.co_located_mv[i][1]*(time_pb - time_pp)/time_pp + (i>>1)*16;\

  169.             int fxy= (fx&1) + 2*(fy&1);\

  170.             int bxy= (bx&1) + 2*(by&1);\

  171. \

  172.             uint8_t *dst= s->me.scratchpad + 8*(i&1) + 8*stride*(i>>1);\

  173.             hpel_put[1][fxy](dst, (ref_y ) + (fx>>1) + (fy>>1)*(stride), stride, 8);\

  174.             hpel_avg[1][bxy](dst, (ref2_y) + (bx>>1) + (by>>1)*(stride), stride, 8);\

  175.         }\

  176.     }else{\

  177.         int fx = s->me.direct_basis_mv[0][0] + hx;\

  178.         int fy = s->me.direct_basis_mv[0][1] + hy;\

  179.         int bx = hx ? fx - s->me.co_located_mv[0][0] : (s->me.co_located_mv[0][0]*(time_pb - time_pp)/time_pp);\

  180.         int by = hy ? fy - s->me.co_located_mv[0][1] : (s->me.co_located_mv[0][1]*(time_pb - time_pp)/time_pp);\

  181.         int fxy= (fx&1) + 2*(fy&1);\

  182.         int bxy= (bx&1) + 2*(by&1);\

  183.         \

  184.         assert((fx>>1) + 16*s->mb_x >= -16);\

  185.         assert((fy>>1) + 16*s->mb_y >= -16);\

  186.         assert((fx>>1) + 16*s->mb_x <= s->width);\

  187.         assert((fy>>1) + 16*s->mb_y <= s->height);\

  188.         assert((bx>>1) + 16*s->mb_x >= -16);\

  189.         assert((by>>1) + 16*s->mb_y >= -16);\

  190.         assert((bx>>1) + 16*s->mb_x <= s->width);\

  191.         assert((by>>1) + 16*s->mb_y <= s->height);\

  192. \

  193.         hpel_put[0][fxy](s->me.scratchpad, (ref_y ) + (fx>>1) + (fy>>1)*(stride), stride, 16);\

  194.         hpel_avg[0][bxy](s->me.scratchpad, (ref2_y) + (bx>>1) + (by>>1)*(stride), stride, 16);\

  195.     }\

  196.     d = cmp_func(s, s->me.scratchpad, src_y, stride);\

  197. }else\

  198.     d= 256*256*256*32;

  199. 

  200. 

  201. #define CMP_HPEL(d, dx, dy, x, y, size)\

  202.     CMP_DIRECT(d, dx, dy, x, y, size, cmp_sub)

  203. 

  204. #define CMP(d, x, y, size)\

  205.     CMP_DIRECT(d, 0, 0, x, y, size, cmp)

  206.     

  207. #include "motion_est_template.c"

  208. #undef RENAME

  209. #undef CMP

  210. #undef CMP_HPEL

  211. #undef CMP_QPEL

  212. #undef INIT

  213. #undef CMP_DIRECT

  214. 

  215. /* SIMPLE DIRECT QPEL */

  216. #define RENAME(a) simple_direct_qpel_ ## a

  217. 

  218. #define CMP_DIRECT(d, dx, dy, x, y, size, cmp_func)\

  219. if((x) >= xmin && 4*(x) + (dx) <= 4*xmax && (y) >= ymin && 4*(y) + (dy) <= 4*ymax){\

  220.     const int qx= 4*(x) + (dx);\

  221.     const int qy= 4*(y) + (dy);\

  222.     if(s->mv_type==MV_TYPE_8X8){\

  223.         int i;\

  224.         for(i=0; i<4; i++){\

  225.             int fx = s->me.direct_basis_mv[i][0] + qx;\

  226.             int fy = s->me.direct_basis_mv[i][1] + qy;\

  227.             int bx = qx ? fx - s->me.co_located_mv[i][0] : s->me.co_located_mv[i][0]*(time_pb - time_pp)/time_pp + (i &1)*16;\

  228.             int by = qy ? fy - s->me.co_located_mv[i][1] : s->me.co_located_mv[i][1]*(time_pb - time_pp)/time_pp + (i>>1)*16;\

  229.             int fxy= (fx&3) + 4*(fy&3);\

  230.             int bxy= (bx&3) + 4*(by&3);\

  231. \

  232.             uint8_t *dst= s->me.scratchpad + 8*(i&1) + 8*stride*(i>>1);\

  233.             qpel_put[1][fxy](dst, (ref_y ) + (fx>>2) + (fy>>2)*(stride), stride);\

  234.             qpel_avg[1][bxy](dst, (ref2_y) + (bx>>2) + (by>>2)*(stride), stride);\

  235.         }\

  236.     }else{\

  237.         int fx = s->me.direct_basis_mv[0][0] + qx;\

  238.         int fy = s->me.direct_basis_mv[0][1] + qy;\

  239.         int bx = qx ? fx - s->me.co_located_mv[0][0] : s->me.co_located_mv[0][0]*(time_pb - time_pp)/time_pp;\

  240.         int by = qy ? fy - s->me.co_located_mv[0][1] : s->me.co_located_mv[0][1]*(time_pb - time_pp)/time_pp;\

  241.         int fxy= (fx&3) + 4*(fy&3);\

  242.         int bxy= (bx&3) + 4*(by&3);\

  243. \

  244.         qpel_put[1][fxy](s->me.scratchpad               , (ref_y ) + (fx>>2) + (fy>>2)*(stride)               , stride);\

  245.         qpel_put[1][fxy](s->me.scratchpad + 8           , (ref_y ) + (fx>>2) + (fy>>2)*(stride) + 8           , stride);\

  246.         qpel_put[1][fxy](s->me.scratchpad     + 8*stride, (ref_y ) + (fx>>2) + (fy>>2)*(stride)     + 8*stride, stride);\

  247.         qpel_put[1][fxy](s->me.scratchpad + 8 + 8*stride, (ref_y ) + (fx>>2) + (fy>>2)*(stride) + 8 + 8*stride, stride);\

  248.         qpel_avg[1][bxy](s->me.scratchpad               , (ref2_y) + (bx>>2) + (by>>2)*(stride)               , stride);\

  249.         qpel_avg[1][bxy](s->me.scratchpad + 8           , (ref2_y) + (bx>>2) + (by>>2)*(stride) + 8           , stride);\

  250.         qpel_avg[1][bxy](s->me.scratchpad     + 8*stride, (ref2_y) + (bx>>2) + (by>>2)*(stride)     + 8*stride, stride);\

  251.         qpel_avg[1][bxy](s->me.scratchpad + 8 + 8*stride, (ref2_y) + (bx>>2) + (by>>2)*(stride) + 8 + 8*stride, stride);\

  252.     }\

  253.     d = cmp_func(s, s->me.scratchpad, src_y, stride);\

  254. }else\

  255.     d= 256*256*256*32;

  256. 

  257. 

  258. #define CMP_QPEL(d, dx, dy, x, y, size)\

  259.     CMP_DIRECT(d, dx, dy, x, y, size, cmp_sub)

  260. 

  261. #define CMP(d, x, y, size)\

  262.     CMP_DIRECT(d, 0, 0, x, y, size, cmp)

  263. 

  264. #include "motion_est_template.c"

  265. #undef RENAME

  266. #undef CMP

  267. #undef CMP_HPEL

  268. #undef CMP_QPEL

  269. #undef INIT

  270. #undef CMP__DIRECT

  271. 

  272. 

  273. static int zero_cmp(void *s, uint8_t *a, uint8_t *b, int stride){

  274.     return 0;

  275. }

  276. 

  277. static void set_cmp(MpegEncContext *s, me_cmp_func *cmp, int type){

  278.     DSPContext* c= &s->dsp;

  279.     int i;

  280.     

  281.     memset(cmp, 0, sizeof(void*)*11);

  282. 

  283.     switch(type&0xFF){

  284.     case FF_CMP_SAD:

  285.         cmp[0]= c->sad[0];

  286.         cmp[1]= c->sad[1];

  287.         break;

  288.     case FF_CMP_SATD:

  289.         cmp[0]= c->hadamard8_diff[0];

  290.         cmp[1]= c->hadamard8_diff[1];

  291.         break;

  292.     case FF_CMP_SSE:

  293.         cmp[0]= c->sse[0];

  294.         cmp[1]= c->sse[1];

  295.         break;

  296.     case FF_CMP_DCT:

  297.         cmp[0]= c->dct_sad[0];

  298.         cmp[1]= c->dct_sad[1];

  299.         break;

  300.     case FF_CMP_PSNR:

  301.         cmp[0]= c->quant_psnr[0];

  302.         cmp[1]= c->quant_psnr[1];

  303.         break;

  304.     case FF_CMP_BIT:

  305.         cmp[0]= c->bit[0];

  306.         cmp[1]= c->bit[1];

  307.         break;

  308.     case FF_CMP_RD:

  309.         cmp[0]= c->rd[0];

  310.         cmp[1]= c->rd[1];

  311.         break;

  312.     case FF_CMP_ZERO:

  313.         for(i=0; i<7; i++){

  314.             cmp[i]= zero_cmp;

  315.         }

  316.         break;

  317.     default:

  318.         fprintf(stderr,"internal error in cmp function selection\n");

  319.     }

  320. }

  321. 

  322. static inline int get_penalty_factor(MpegEncContext *s, int type){

  323.     switch(type&0xFF){

  324.     default:

  325.     case FF_CMP_SAD:

  326.         return s->qscale*2;

  327.     case FF_CMP_DCT:

  328.         return s->qscale*3;

  329.     case FF_CMP_SATD:

  330.         return s->qscale*6;

  331.     case FF_CMP_SSE:

  332.         return s->qscale*s->qscale*2;

  333.     case FF_CMP_BIT:

  334.         return 1;

  335.     case FF_CMP_RD:

  336.     case FF_CMP_PSNR:

  337.         return (s->qscale*s->qscale*185 + 64)>>7;

  338.     }

  339. }

  340. 

  341. void ff_init_me(MpegEncContext *s){

  342.     set_cmp(s, s->dsp.me_pre_cmp, s->avctx->me_pre_cmp);

  343.     set_cmp(s, s->dsp.me_cmp, s->avctx->me_cmp);

  344.     set_cmp(s, s->dsp.me_sub_cmp, s->avctx->me_sub_cmp);

  345.     set_cmp(s, s->dsp.mb_cmp, s->avctx->mb_cmp);

  346. 

  347.     if(s->flags&CODEC_FLAG_QPEL){

  348.         if(s->avctx->me_sub_cmp&FF_CMP_CHROMA)

  349.             s->me.sub_motion_search= simple_chroma_qpel_motion_search;

  350.         else

  351.             s->me.sub_motion_search= simple_qpel_motion_search;

  352.     }else{

  353.         if(s->avctx->me_sub_cmp&FF_CMP_CHROMA)

  354.             s->me.sub_motion_search= simple_chroma_hpel_motion_search;

  355.         else if(   s->avctx->me_sub_cmp == FF_CMP_SAD 

  356.                 && s->avctx->    me_cmp == FF_CMP_SAD 

  357.                 && s->avctx->    mb_cmp == FF_CMP_SAD)

  358.             s->me.sub_motion_search= sad_hpel_motion_search;

  359.         else

  360.             s->me.sub_motion_search= simple_hpel_motion_search;

  361.     }

  362. 

  363.     if(s->avctx->me_cmp&FF_CMP_CHROMA){

  364.         s->me.motion_search[0]= simple_chroma_epzs_motion_search;

  365.         s->me.motion_search[1]= simple_chroma_epzs_motion_search4;

  366.     }else{

  367.         s->me.motion_search[0]= simple_epzs_motion_search;

  368.         s->me.motion_search[1]= simple_epzs_motion_search4;

  369.     }

  370.     

  371.     if(s->avctx->me_pre_cmp&FF_CMP_CHROMA){

  372.         s->me.pre_motion_search= simple_chroma_epzs_motion_search;

  373.     }else{

  374.         s->me.pre_motion_search= simple_epzs_motion_search;

  375.     }

  376.     

  377.     if(s->flags&CODEC_FLAG_QPEL){

  378.         if(s->avctx->mb_cmp&FF_CMP_CHROMA)

  379.             s->me.get_mb_score= simple_chroma_qpel_get_mb_score;

  380.         else

  381.             s->me.get_mb_score= simple_qpel_get_mb_score;

  382.     }else{

  383.         if(s->avctx->mb_cmp&FF_CMP_CHROMA)

  384.             s->me.get_mb_score= simple_chroma_hpel_get_mb_score;

  385.         else

  386.             s->me.get_mb_score= simple_hpel_get_mb_score;

  387.     }

  388. }

  389.       

  390. static int pix_dev(uint8_t * pix, int line_size, int mean)

  391. {

  392.     int s, i, j;

  393. 

  394.     s = 0;

  395.     for (i = 0; i < 16; i++) {

  396. 	for (j = 0; j < 16; j += 8) {

  397. 	    s += ABS(pix[0]-mean);

  398. 	    s += ABS(pix[1]-mean);

  399. 	    s += ABS(pix[2]-mean);

  400. 	    s += ABS(pix[3]-mean);

  401. 	    s += ABS(pix[4]-mean);

  402. 	    s += ABS(pix[5]-mean);

  403. 	    s += ABS(pix[6]-mean);

  404. 	    s += ABS(pix[7]-mean);

  405. 	    pix += 8;

  406. 	}

  407. 	pix += line_size - 16;

  408.     }

  409.     return s;

  410. }

  411. 

  412. static inline void no_motion_search(MpegEncContext * s,

  413. 				    int *mx_ptr, int *my_ptr)

  414. {

  415.     *mx_ptr = 16 * s->mb_x;

  416.     *my_ptr = 16 * s->mb_y;

  417. }

  418. 

  419. static int full_motion_search(MpegEncContext * s,

  420.                               int *mx_ptr, int *my_ptr, int range,

  421.                               int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)

  422. {

  423.     int x1, y1, x2, y2, xx, yy, x, y;

  424.     int mx, my, dmin, d;

  425.     uint8_t *pix;

  426. 

  427.     xx = 16 * s->mb_x;

  428.     yy = 16 * s->mb_y;

  429.     x1 = xx - range + 1;	/* we loose one pixel to avoid boundary pb with half pixel pred */

  430.     if (x1 < xmin)

  431. 	x1 = xmin;

  432.     x2 = xx + range - 1;

  433.     if (x2 > xmax)

  434. 	x2 = xmax;

  435.     y1 = yy - range + 1;

  436.     if (y1 < ymin)

  437. 	y1 = ymin;

  438.     y2 = yy + range - 1;

  439.     if (y2 > ymax)

  440. 	y2 = ymax;

  441.     pix = s->new_picture.data[0] + (yy * s->linesize) + xx;

  442.     dmin = 0x7fffffff;

  443.     mx = 0;

  444.     my = 0;

  445.     for (y = y1; y <= y2; y++) {

  446. 	for (x = x1; x <= x2; x++) {

  447. 	    d = s->dsp.pix_abs16x16(pix, ref_picture + (y * s->linesize) + x,

  448. 			     s->linesize);

  449. 	    if (d < dmin ||

  450. 		(d == dmin &&

  451. 		 (abs(x - xx) + abs(y - yy)) <

  452. 		 (abs(mx - xx) + abs(my - yy)))) {

  453. 		dmin = d;

  454. 		mx = x;

  455. 		my = y;

  456. 	    }

  457. 	}

  458.     }

  459. 

  460.     *mx_ptr = mx;

  461.     *my_ptr = my;

  462. 

  463. #if 0

  464.     if (*mx_ptr < -(2 * range) || *mx_ptr >= (2 * range) ||

  465. 	*my_ptr < -(2 * range) || *my_ptr >= (2 * range)) {

  466. 	fprintf(stderr, "error %d %d\n", *mx_ptr, *my_ptr);

  467.     }

  468. #endif

  469.     return dmin;

  470. }

  471. 

  472. 

  473. static int log_motion_search(MpegEncContext * s,

  474.                              int *mx_ptr, int *my_ptr, int range,

  475.                              int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)

  476. {

  477.     int x1, y1, x2, y2, xx, yy, x, y;

  478.     int mx, my, dmin, d;

  479.     uint8_t *pix;

  480. 

  481.     xx = s->mb_x << 4;

  482.     yy = s->mb_y << 4;

  483. 

  484.     /* Left limit */

  485.     x1 = xx - range;

  486.     if (x1 < xmin)

  487. 	x1 = xmin;

  488. 

  489.     /* Right limit */

  490.     x2 = xx + range;

  491.     if (x2 > xmax)

  492. 	x2 = xmax;

  493. 

  494.     /* Upper limit */

  495.     y1 = yy - range;

  496.     if (y1 < ymin)

  497. 	y1 = ymin;

  498. 

  499.     /* Lower limit */

  500.     y2 = yy + range;

  501.     if (y2 > ymax)

  502. 	y2 = ymax;

  503. 

  504.     pix = s->new_picture.data[0] + (yy * s->linesize) + xx;

  505.     dmin = 0x7fffffff;

  506.     mx = 0;

  507.     my = 0;

  508. 

  509.     do {

  510. 	for (y = y1; y <= y2; y += range) {

  511. 	    for (x = x1; x <= x2; x += range) {

  512. 		d = s->dsp.pix_abs16x16(pix, ref_picture + (y * s->linesize) + x, s->linesize);

  513. 		if (d < dmin || (d == dmin && (abs(x - xx) + abs(y - yy)) < (abs(mx - xx) + abs(my - yy)))) {

  514. 		    dmin = d;

  515. 		    mx = x;

  516. 		    my = y;

  517. 		}

  518. 	    }

  519. 	}

  520. 

  521. 	range = range >> 1;

  522. 

  523. 	x1 = mx - range;

  524. 	if (x1 < xmin)

  525. 	    x1 = xmin;

  526. 

  527. 	x2 = mx + range;

  528. 	if (x2 > xmax)

  529. 	    x2 = xmax;

  530. 

  531. 	y1 = my - range;

  532. 	if (y1 < ymin)

  533. 	    y1 = ymin;

  534. 

  535. 	y2 = my + range;

  536. 	if (y2 > ymax)

  537. 	    y2 = ymax;

  538. 

  539.     } while (range >= 1);

  540. 

  541. #ifdef DEBUG

  542.     fprintf(stderr, "log       - MX: %d\tMY: %d\n", mx, my);

  543. #endif

  544.     *mx_ptr = mx;

  545.     *my_ptr = my;

  546.     return dmin;

  547. }

  548. 

  549. static int phods_motion_search(MpegEncContext * s,

  550.                                int *mx_ptr, int *my_ptr, int range,

  551.                                int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)

  552. {

  553.     int x1, y1, x2, y2, xx, yy, x, y, lastx, d;

  554.     int mx, my, dminx, dminy;

  555.     uint8_t *pix;

  556. 

  557.     xx = s->mb_x << 4;

  558.     yy = s->mb_y << 4;

  559. 

  560.     /* Left limit */

  561.     x1 = xx - range;

  562.     if (x1 < xmin)

  563. 	x1 = xmin;

  564. 

  565.     /* Right limit */

  566.     x2 = xx + range;

  567.     if (x2 > xmax)

  568. 	x2 = xmax;

  569. 

  570.     /* Upper limit */

  571.     y1 = yy - range;

  572.     if (y1 < ymin)

  573. 	y1 = ymin;

  574. 

  575.     /* Lower limit */

  576.     y2 = yy + range;

  577.     if (y2 > ymax)

  578. 	y2 = ymax;

  579. 

  580.     pix = s->new_picture.data[0] + (yy * s->linesize) + xx;

  581.     mx = 0;

  582.     my = 0;

  583. 

  584.     x = xx;

  585.     y = yy;

  586.     do {

  587.         dminx = 0x7fffffff;

  588.         dminy = 0x7fffffff;

  589. 

  590. 	lastx = x;

  591. 	for (x = x1; x <= x2; x += range) {

  592. 	    d = s->dsp.pix_abs16x16(pix, ref_picture + (y * s->linesize) + x, s->linesize);

  593. 	    if (d < dminx || (d == dminx && (abs(x - xx) + abs(y - yy)) < (abs(mx - xx) + abs(my - yy)))) {

  594. 		dminx = d;

  595. 		mx = x;

  596. 	    }

  597. 	}

  598. 

  599. 	x = lastx;

  600. 	for (y = y1; y <= y2; y += range) {

  601. 	    d = s->dsp.pix_abs16x16(pix, ref_picture + (y * s->linesize) + x, s->linesize);

  602. 	    if (d < dminy || (d == dminy && (abs(x - xx) + abs(y - yy)) < (abs(mx - xx) + abs(my - yy)))) {

  603. 		dminy = d;

  604. 		my = y;

  605. 	    }

  606. 	}

  607. 

  608. 	range = range >> 1;

  609. 

  610. 	x = mx;

  611. 	y = my;

  612. 	x1 = mx - range;

  613. 	if (x1 < xmin)

  614. 	    x1 = xmin;

  615. 

  616. 	x2 = mx + range;

  617. 	if (x2 > xmax)

  618. 	    x2 = xmax;

  619. 

  620. 	y1 = my - range;

  621. 	if (y1 < ymin)

  622. 	    y1 = ymin;

  623. 

  624. 	y2 = my + range;

  625. 	if (y2 > ymax)

  626. 	    y2 = ymax;

  627. 

  628.     } while (range >= 1);

  629. 

  630. #ifdef DEBUG

  631.     fprintf(stderr, "phods     - MX: %d\tMY: %d\n", mx, my);

  632. #endif

  633. 

  634.     /* half pixel search */

  635.     *mx_ptr = mx;

  636.     *my_ptr = my;

  637.     return dminy;

  638. }

  639. 

  640. 

  641. #define Z_THRESHOLD 256

  642. 

  643. #define CHECK_SAD_HALF_MV(suffix, x, y) \

  644. {\

  645.     d= pix_abs_ ## suffix(pix, ptr+((x)>>1), s->linesize);\

  646.     d += (mv_penalty[pen_x + x] + mv_penalty[pen_y + y])*penalty_factor;\

  647.     COPY3_IF_LT(dminh, d, dx, x, dy, y)\

  648. }

  649. 

  650. static inline int sad_hpel_motion_search(MpegEncContext * s,

  651. 				  int *mx_ptr, int *my_ptr, int dmin,

  652. 				  int xmin, int ymin, int xmax, int ymax,

  653.                                   int pred_x, int pred_y, Picture *picture,

  654.                                   int n, int size, uint16_t * const mv_penalty)

  655. {

  656.     uint8_t *ref_picture= picture->data[0];

  657.     uint32_t *score_map= s->me.score_map;

  658.     const int penalty_factor= s->me.sub_penalty_factor;

  659.     int mx, my, xx, yy, dminh;

  660.     uint8_t *pix, *ptr;

  661.     op_pixels_abs_func pix_abs_x2;

  662.     op_pixels_abs_func pix_abs_y2;

  663.     op_pixels_abs_func pix_abs_xy2;

  664.     

  665.     if(size==0){

  666.         pix_abs_x2 = s->dsp.pix_abs16x16_x2;

  667.         pix_abs_y2 = s->dsp.pix_abs16x16_y2;

  668.         pix_abs_xy2= s->dsp.pix_abs16x16_xy2;

  669.     }else{

  670.         pix_abs_x2 = s->dsp.pix_abs8x8_x2;

  671.         pix_abs_y2 = s->dsp.pix_abs8x8_y2;

  672.         pix_abs_xy2= s->dsp.pix_abs8x8_xy2;

  673.     }

  674. 

  675.     if(s->me.skip){

  676. //    printf("S");

  677.         *mx_ptr = 0;

  678.         *my_ptr = 0;

  679.         return dmin;

  680.     }

  681. //    printf("N");

  682.         

  683.     xx = 16 * s->mb_x + 8*(n&1);

  684.     yy = 16 * s->mb_y + 8*(n>>1);

  685.     pix =  s->new_picture.data[0] + (yy * s->linesize) + xx;

  686. 

  687.     mx = *mx_ptr;

  688.     my = *my_ptr;

  689.     ptr = ref_picture + ((yy + my) * s->linesize) + (xx + mx);

  690.     

  691.     dminh = dmin;

  692. 

  693.     if (mx > xmin && mx < xmax && 

  694.         my > ymin && my < ymax) {

  695.         int dx=0, dy=0;

  696.         int d, pen_x, pen_y; 

  697.         const int index= (my<<ME_MAP_SHIFT) + mx;

  698.         const int t= score_map[(index-(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];

  699.         const int l= score_map[(index- 1               )&(ME_MAP_SIZE-1)];

  700.         const int r= score_map[(index+ 1               )&(ME_MAP_SIZE-1)];

  701.         const int b= score_map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];

  702.         mx<<=1;

  703.         my<<=1;

  704. 

  705.         

  706.         pen_x= pred_x + mx;

  707.         pen_y= pred_y + my;

  708. 

  709.         ptr-= s->linesize;

  710.         if(t<=b){

  711.             CHECK_SAD_HALF_MV(y2 , 0, -1)

  712.             if(l<=r){

  713.                 CHECK_SAD_HALF_MV(xy2, -1, -1)

  714.                 if(t+r<=b+l){

  715.                     CHECK_SAD_HALF_MV(xy2, +1, -1)

  716.                     ptr+= s->linesize;

  717.                 }else{

  718.                     ptr+= s->linesize;

  719.                     CHECK_SAD_HALF_MV(xy2, -1, +1)

  720.                 }

  721.                 CHECK_SAD_HALF_MV(x2 , -1,  0)

  722.             }else{

  723.                 CHECK_SAD_HALF_MV(xy2, +1, -1)

  724.                 if(t+l<=b+r){

  725.                     CHECK_SAD_HALF_MV(xy2, -1, -1)

  726.                     ptr+= s->linesize;

  727.                 }else{

  728.                     ptr+= s->linesize;

  729.                     CHECK_SAD_HALF_MV(xy2, +1, +1)

  730.                 }

  731.                 CHECK_SAD_HALF_MV(x2 , +1,  0)

  732.             }

  733.         }else{

  734.             if(l<=r){

  735.                 if(t+l<=b+r){

  736.                     CHECK_SAD_HALF_MV(xy2, -1, -1)

  737.                     ptr+= s->linesize;

  738.                 }else{

  739.                     ptr+= s->linesize;

  740.                     CHECK_SAD_HALF_MV(xy2, +1, +1)

  741.                 }

  742.                 CHECK_SAD_HALF_MV(x2 , -1,  0)

  743.                 CHECK_SAD_HALF_MV(xy2, -1, +1)

  744.             }else{

  745.                 if(t+r<=b+l){

  746.                     CHECK_SAD_HALF_MV(xy2, +1, -1)

  747.                     ptr+= s->linesize;

  748.                 }else{

  749.                     ptr+= s->linesize;

  750.                     CHECK_SAD_HALF_MV(xy2, -1, +1)

  751.                 }

  752.                 CHECK_SAD_HALF_MV(x2 , +1,  0)

  753.                 CHECK_SAD_HALF_MV(xy2, +1, +1)

  754.             }

  755.             CHECK_SAD_HALF_MV(y2 ,  0, +1)

  756.         }

  757.         mx+=dx;

  758.         my+=dy;

  759. 

  760.     }else{

  761.         mx<<=1;

  762.         my<<=1;

  763.     }

  764. 

  765.     *mx_ptr = mx;

  766.     *my_ptr = my;

  767.     return dminh;

  768. }

  769. 

  770. static inline void set_p_mv_tables(MpegEncContext * s, int mx, int my, int mv4)

  771. {

  772.     const int xy= s->mb_x + 1 + (s->mb_y + 1)*(s->mb_width + 2);

  773.     

  774.     s->p_mv_table[xy][0] = mx;

  775.     s->p_mv_table[xy][1] = my;

  776. 

  777.     /* has allready been set to the 4 MV if 4MV is done */

  778.     if(mv4){

  779.         int mot_xy= s->block_index[0];

  780. 

  781.         s->motion_val[mot_xy  ][0]= mx;

  782.         s->motion_val[mot_xy  ][1]= my;

  783.         s->motion_val[mot_xy+1][0]= mx;

  784.         s->motion_val[mot_xy+1][1]= my;

  785. 

  786.         mot_xy += s->block_wrap[0];

  787.         s->motion_val[mot_xy  ][0]= mx;

  788.         s->motion_val[mot_xy  ][1]= my;

  789.         s->motion_val[mot_xy+1][0]= mx;

  790.         s->motion_val[mot_xy+1][1]= my;

  791.     }

  792. }

  793. 

  794. /**

  795.  * get fullpel ME search limits.

  796.  * @param range the approximate search range for the old ME code, unused for EPZS and newer

  797.  */

  798. static inline void get_limits(MpegEncContext *s, int *range, int *xmin, int *ymin, int *xmax, int *ymax)

  799. {

  800.     if(s->avctx->me_range) *range= s->avctx->me_range >> 1;

  801.     else                   *range= 16;

  802. 

  803.     if (s->unrestricted_mv) {

  804.         *xmin = -16;

  805.         *ymin = -16;

  806.         if(s->avctx->codec->id!=CODEC_ID_MPEG4){

  807.             *xmax = s->mb_width*16;

  808.             *ymax = s->mb_height*16;

  809.         }else {

  810.             *xmax = s->width;

  811.             *ymax = s->height;

  812.         }

  813.     } else {

  814.         *xmin = 0;

  815.         *ymin = 0;

  816.         *xmax = s->mb_width*16 - 16;

  817.         *ymax = s->mb_height*16 - 16;

  818.     }

  819.     

  820.     //FIXME try to limit x/y min/max if me_range is set

  821. }

  822. 

  823. static inline int h263_mv4_search(MpegEncContext *s, int xmin, int ymin, int xmax, int ymax, int mx, int my, int shift)

  824. {

  825.     int block;

  826.     int P[10][2];

  827.     int dmin_sum=0, mx4_sum=0, my4_sum=0;

  828.     uint16_t * const mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;

  829. 

  830.     for(block=0; block<4; block++){

  831.         int mx4, my4;

  832.         int pred_x4, pred_y4;

  833.         int dmin4;

  834.         static const int off[4]= {2, 1, 1, -1};

  835.         const int mot_stride = s->block_wrap[0];

  836.         const int mot_xy = s->block_index[block];

  837. //        const int block_x= (block&1);

  838. //        const int block_y= (block>>1);

  839. #if 1 // this saves us a bit of cliping work and shouldnt affect compression in a negative way

  840.         const int rel_xmin4= xmin;

  841.         const int rel_xmax4= xmax;

  842.         const int rel_ymin4= ymin;

  843.         const int rel_ymax4= ymax;

  844. #else

  845.         const int rel_xmin4= xmin - block_x*8;

  846.         const int rel_xmax4= xmax - block_x*8 + 8;

  847.         const int rel_ymin4= ymin - block_y*8;

  848.         const int rel_ymax4= ymax - block_y*8 + 8;

  849. #endif

  850.         P_LEFT[0] = s->motion_val[mot_xy - 1][0];

  851.         P_LEFT[1] = s->motion_val[mot_xy - 1][1];

  852. 

  853.         if(P_LEFT[0]       > (rel_xmax4<<shift)) P_LEFT[0]       = (rel_xmax4<<shift);

  854. 

  855.         /* special case for first line */

  856.         if (s->mb_y == 0 && block<2) {

  857.             pred_x4= P_LEFT[0];

  858.             pred_y4= P_LEFT[1];

  859.         } else {

  860.             P_TOP[0]      = s->motion_val[mot_xy - mot_stride             ][0];

  861.             P_TOP[1]      = s->motion_val[mot_xy - mot_stride             ][1];

  862.             P_TOPRIGHT[0] = s->motion_val[mot_xy - mot_stride + off[block]][0];

  863.             P_TOPRIGHT[1] = s->motion_val[mot_xy - mot_stride + off[block]][1];

  864.             if(P_TOP[1]      > (rel_ymax4<<shift)) P_TOP[1]     = (rel_ymax4<<shift);

  865.             if(P_TOPRIGHT[0] < (rel_xmin4<<shift)) P_TOPRIGHT[0]= (rel_xmin4<<shift);

  866.             if(P_TOPRIGHT[0] > (rel_xmax4<<shift)) P_TOPRIGHT[0]= (rel_xmax4<<shift);

  867.             if(P_TOPRIGHT[1] > (rel_ymax4<<shift)) P_TOPRIGHT[1]= (rel_ymax4<<shift);

  868.     

  869.             P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

  870.             P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

  871. 

  872. //            if(s->out_format == FMT_H263){

  873.                 pred_x4 = P_MEDIAN[0];

  874.                 pred_y4 = P_MEDIAN[1];

  875. #if 0

  876.             }else { /* mpeg1 at least */

  877.                 pred_x4= P_LEFT[0];

  878.                 pred_y4= P_LEFT[1];

  879.             }

  880. #endif

  881.         }

  882.         P_MV1[0]= mx;

  883.         P_MV1[1]= my;

  884. 

  885.         dmin4 = s->me.motion_search[1](s, block, &mx4, &my4, P, pred_x4, pred_y4, rel_xmin4, rel_ymin4, rel_xmax4, rel_ymax4, 

  886.                                        &s->last_picture, s->p_mv_table, (1<<16)>>shift, mv_penalty);

  887. 

  888.         dmin4= s->me.sub_motion_search(s, &mx4, &my4, dmin4, rel_xmin4, rel_ymin4, rel_xmax4, rel_ymax4, 

  889. 					  pred_x4, pred_y4, &s->last_picture, block, 1, mv_penalty);

  890.         

  891.         if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){

  892.             int dxy;

  893.             const int offset= ((block&1) + (block>>1)*s->linesize)*8;

  894.             uint8_t *dest_y = s->me.scratchpad + offset;

  895. 

  896.             if(s->quarter_sample){

  897.                 uint8_t *ref= s->last_picture.data[0] + (s->mb_x*16 + (mx4>>2)) + (s->mb_y*16 + (my4>>2))*s->linesize + offset;

  898.                 dxy = ((my4 & 3) << 2) | (mx4 & 3);

  899. 

  900.                 if(s->no_rounding)

  901.                     s->dsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y   , ref    , s->linesize);

  902.                 else

  903.                     s->dsp.put_qpel_pixels_tab       [1][dxy](dest_y   , ref    , s->linesize);

  904.             }else{

  905.                 uint8_t *ref= s->last_picture.data[0] + (s->mb_x*16 + (mx4>>1)) + (s->mb_y*16 + (my4>>1))*s->linesize + offset;

  906.                 dxy = ((my4 & 1) << 1) | (mx4 & 1);

  907. 

  908.                 if(s->no_rounding)

  909.                     s->dsp.put_no_rnd_pixels_tab[1][dxy](dest_y    , ref    , s->linesize, 8);

  910.                 else

  911.                     s->dsp.put_pixels_tab       [1][dxy](dest_y    , ref    , s->linesize, 8);

  912.             }

  913.             dmin_sum+= (mv_penalty[mx4-pred_x4] + mv_penalty[my4-pred_y4])*s->me.mb_penalty_factor;

  914.         }else

  915.             dmin_sum+= dmin4;

  916. 

  917.         if(s->quarter_sample){

  918.             mx4_sum+= mx4/2;

  919.             my4_sum+= my4/2;

  920.         }else{

  921.             mx4_sum+= mx4;

  922.             my4_sum+= my4;

  923.         }

  924.             

  925.         s->motion_val[ s->block_index[block] ][0]= mx4;

  926.         s->motion_val[ s->block_index[block] ][1]= my4;

  927.     }

  928.     

  929.     if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){

  930.         dmin_sum += s->dsp.mb_cmp[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*16*s->linesize, s->me.scratchpad, s->linesize);

  931.     }

  932.     

  933.     if(s->avctx->mb_cmp&FF_CMP_CHROMA){

  934.         int dxy;

  935.         int mx, my;

  936.         int offset;

  937. 

  938.         mx= ff_h263_round_chroma(mx4_sum);

  939.         my= ff_h263_round_chroma(my4_sum);

  940.         dxy = ((my & 1) << 1) | (mx & 1);

  941.         

  942.         offset= (s->mb_x*8 + (mx>>1)) + (s->mb_y*8 + (my>>1))*s->uvlinesize;

  943.        

  944.         if(s->no_rounding){

  945.             s->dsp.put_no_rnd_pixels_tab[1][dxy](s->me.scratchpad    , s->last_picture.data[1] + offset, s->uvlinesize, 8);

  946.             s->dsp.put_no_rnd_pixels_tab[1][dxy](s->me.scratchpad+8  , s->last_picture.data[2] + offset, s->uvlinesize, 8);

  947.         }else{

  948.             s->dsp.put_pixels_tab       [1][dxy](s->me.scratchpad    , s->last_picture.data[1] + offset, s->uvlinesize, 8);

  949.             s->dsp.put_pixels_tab       [1][dxy](s->me.scratchpad+8  , s->last_picture.data[2] + offset, s->uvlinesize, 8);

  950.         }

  951. 

  952.         dmin_sum += s->dsp.mb_cmp[1](s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*8*s->uvlinesize, s->me.scratchpad  , s->uvlinesize);

  953.         dmin_sum += s->dsp.mb_cmp[1](s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*8*s->uvlinesize, s->me.scratchpad+8, s->uvlinesize);

  954.     }

  955. 

  956.     switch(s->avctx->mb_cmp&0xFF){

  957.     /*case FF_CMP_SSE:

  958.         return dmin_sum+ 32*s->qscale*s->qscale;*/

  959.     case FF_CMP_RD:

  960.         return dmin_sum;

  961.     default:

  962.         return dmin_sum+ 11*s->me.mb_penalty_factor;

  963.     }

  964. }

  965. 

  966. void ff_estimate_p_frame_motion(MpegEncContext * s,

  967.                                 int mb_x, int mb_y)

  968. {

  969.     uint8_t *pix, *ppix;

  970.     int sum, varc, vard, mx, my, range, dmin, xx, yy;

  971.     int xmin, ymin, xmax, ymax;

  972.     int rel_xmin, rel_ymin, rel_xmax, rel_ymax;

  973.     int pred_x=0, pred_y=0;

  974.     int P[10][2];

  975.     const int shift= 1+s->quarter_sample;

  976.     int mb_type=0;

  977.     uint8_t *ref_picture= s->last_picture.data[0];

  978.     Picture * const pic= &s->current_picture;

  979.     uint16_t * const mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;

  980.     

  981.     assert(s->quarter_sample==0 || s->quarter_sample==1);

  982. 

  983.     s->me.penalty_factor    = get_penalty_factor(s, s->avctx->me_cmp);

  984.     s->me.sub_penalty_factor= get_penalty_factor(s, s->avctx->me_sub_cmp);

  985.     s->me.mb_penalty_factor = get_penalty_factor(s, s->avctx->mb_cmp);

  986. 

  987.     get_limits(s, &range, &xmin, &ymin, &xmax, &ymax);

  988.     rel_xmin= xmin - mb_x*16;

  989.     rel_xmax= xmax - mb_x*16;

  990.     rel_ymin= ymin - mb_y*16;

  991.     rel_ymax= ymax - mb_y*16;

  992.     s->me.skip=0;

  993. 

  994.     switch(s->me_method) {

  995.     case ME_ZERO:

  996.     default:

  997. 	no_motion_search(s, &mx, &my);

  998.         mx-= mb_x*16;

  999.         my-= mb_y*16;

  1000.         dmin = 0;

  1001.         break;

  1002.     case ME_FULL:

  1003. 	dmin = full_motion_search(s, &mx, &my, range, xmin, ymin, xmax, ymax, ref_picture);

  1004.         mx-= mb_x*16;

  1005.         my-= mb_y*16;

  1006.         break;

  1007.     case ME_LOG:

  1008. 	dmin = log_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);

  1009.         mx-= mb_x*16;

  1010.         my-= mb_y*16;

  1011.         break;

  1012.     case ME_PHODS:

  1013. 	dmin = phods_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);

  1014.         mx-= mb_x*16;

  1015.         my-= mb_y*16;

  1016.         break;

  1017.     case ME_X1:

  1018.     case ME_EPZS:

  1019.        {

  1020.             const int mot_stride = s->block_wrap[0];

  1021.             const int mot_xy = s->block_index[0];

  1022. 

  1023.             P_LEFT[0]       = s->motion_val[mot_xy - 1][0];

  1024.             P_LEFT[1]       = s->motion_val[mot_xy - 1][1];

  1025. 

  1026.             if(P_LEFT[0]       > (rel_xmax<<shift)) P_LEFT[0]       = (rel_xmax<<shift);

  1027. 

  1028.             if(mb_y) {

  1029.                 P_TOP[0]      = s->motion_val[mot_xy - mot_stride    ][0];

  1030.                 P_TOP[1]      = s->motion_val[mot_xy - mot_stride    ][1];

  1031.                 P_TOPRIGHT[0] = s->motion_val[mot_xy - mot_stride + 2][0];

  1032.                 P_TOPRIGHT[1] = s->motion_val[mot_xy - mot_stride + 2][1];

  1033.                 if(P_TOP[1]      > (rel_ymax<<shift)) P_TOP[1]     = (rel_ymax<<shift);

  1034.                 if(P_TOPRIGHT[0] < (rel_xmin<<shift)) P_TOPRIGHT[0]= (rel_xmin<<shift);

  1035.                 if(P_TOPRIGHT[1] > (rel_ymax<<shift)) P_TOPRIGHT[1]= (rel_ymax<<shift);

  1036.         

  1037.                 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

  1038.                 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

  1039. 

  1040.                 if(s->out_format == FMT_H263){

  1041.                     pred_x = P_MEDIAN[0];

  1042.                     pred_y = P_MEDIAN[1];

  1043.                 }else { /* mpeg1 at least */

  1044.                     pred_x= P_LEFT[0];

  1045.                     pred_y= P_LEFT[1];

  1046.                 }

  1047.             }else{

  1048.                 pred_x= P_LEFT[0];

  1049.                 pred_y= P_LEFT[1];

  1050.             }

  1051. 

  1052.         }

  1053.         dmin = s->me.motion_search[0](s, 0, &mx, &my, P, pred_x, pred_y, rel_xmin, rel_ymin, rel_xmax, rel_ymax, 

  1054.                                       &s->last_picture, s->p_mv_table, (1<<16)>>shift, mv_penalty);

  1055.  

  1056.         break;

  1057.     }

  1058. 

  1059.     /* intra / predictive decision */

  1060.     xx = mb_x * 16;

  1061.     yy = mb_y * 16;

  1062. 

  1063.     pix = s->new_picture.data[0] + (yy * s->linesize) + xx;

  1064.     /* At this point (mx,my) are full-pell and the relative displacement */

  1065.     ppix = ref_picture + ((yy+my) * s->linesize) + (xx+mx);

  1066.     

  1067.     sum = s->dsp.pix_sum(pix, s->linesize);

  1068.     

  1069.     varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;

  1070.     vard = (s->dsp.sse[0](NULL, pix, ppix, s->linesize)+128)>>8;

  1071. 

  1072. //printf("%d %d %d %X %X %X\n", s->mb_width, mb_x, mb_y,(int)s, (int)s->mb_var, (int)s->mc_mb_var); fflush(stdout);

  1073.     pic->mb_var   [s->mb_width * mb_y + mb_x] = varc;

  1074.     pic->mc_mb_var[s->mb_width * mb_y + mb_x] = vard;

  1075.     pic->mb_mean  [s->mb_width * mb_y + mb_x] = (sum+128)>>8;

  1076. //    pic->mb_cmp_score[s->mb_width * mb_y + mb_x] = dmin; 

  1077.     pic->mb_var_sum    += varc;

  1078.     pic->mc_mb_var_sum += vard;

  1079. //printf("E%d %d %d %X %X %X\n", s->mb_width, mb_x, mb_y,(int)s, (int)s->mb_var, (int)s->mc_mb_var); fflush(stdout);

  1080.     

  1081. #if 0

  1082.     printf("varc=%4d avg_var=%4d (sum=%4d) vard=%4d mx=%2d my=%2d\n",

  1083. 	   varc, s->avg_mb_var, sum, vard, mx - xx, my - yy);

  1084. #endif

  1085.     if(s->flags&CODEC_FLAG_HQ){

  1086.         if (vard <= 64 || vard < varc)

  1087.             s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);

  1088.         else

  1089.             s->scene_change_score+= s->qscale;

  1090. 

  1091.         if (vard*2 + 200 > varc)

  1092.             mb_type|= MB_TYPE_INTRA;

  1093.         if (varc*2 + 200 > vard){

  1094.             mb_type|= MB_TYPE_INTER;

  1095.             s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,

  1096. 				   pred_x, pred_y, &s->last_picture, 0, 0, mv_penalty);

  1097.         }else{

  1098.             mx <<=shift;

  1099.             my <<=shift;

  1100.         }

  1101.         if((s->flags&CODEC_FLAG_4MV)

  1102.            && !s->me.skip && varc>50 && vard>10){

  1103.             h263_mv4_search(s, rel_xmin, rel_ymin, rel_xmax, rel_ymax, mx, my, shift);

  1104.             mb_type|=MB_TYPE_INTER4V;

  1105. 

  1106.             set_p_mv_tables(s, mx, my, 0);

  1107.         }else

  1108.             set_p_mv_tables(s, mx, my, 1);

  1109.     }else{

  1110.         mb_type= MB_TYPE_INTER;

  1111. 

  1112.         dmin= s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,

  1113.                                     pred_x, pred_y, &s->last_picture, 0, 0, mv_penalty);

  1114.         

  1115.         if(s->avctx->me_sub_cmp != s->avctx->mb_cmp && !s->me.skip)

  1116.             dmin= s->me.get_mb_score(s, mx, my, pred_x, pred_y, &s->last_picture, mv_penalty);

  1117. 

  1118.         if((s->flags&CODEC_FLAG_4MV)

  1119.            && !s->me.skip && varc>50 && vard>10){

  1120.             int dmin4= h263_mv4_search(s, rel_xmin, rel_ymin, rel_xmax, rel_ymax, mx, my, shift);

  1121.             if(dmin4 < dmin){

  1122.                 mb_type= MB_TYPE_INTER4V;

  1123.                 dmin=dmin4;

  1124.             }

  1125.         }

  1126.         pic->mb_cmp_score[s->mb_width * mb_y + mb_x] = dmin; 

  1127.         set_p_mv_tables(s, mx, my, mb_type!=MB_TYPE_INTER4V);

  1128.         

  1129.         if (vard <= 64 || vard < varc) {

  1130.             s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);

  1131.         }else{

  1132.             s->scene_change_score+= s->qscale;

  1133.         }

  1134.     }

  1135. 

  1136.     s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;

  1137. }

  1138. 

  1139. int ff_pre_estimate_p_frame_motion(MpegEncContext * s,

  1140.                                     int mb_x, int mb_y)

  1141. {

  1142.     int mx, my, range, dmin;

  1143.     int xmin, ymin, xmax, ymax;

  1144.     int rel_xmin, rel_ymin, rel_xmax, rel_ymax;

  1145.     int pred_x=0, pred_y=0;

  1146.     int P[10][2];

  1147.     const int shift= 1+s->quarter_sample;

  1148.     uint16_t * const mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;

  1149.     const int mv_stride= s->mb_width + 2;

  1150.     const int xy= mb_x + 1 + (mb_y + 1)*mv_stride;

  1151.     

  1152.     assert(s->quarter_sample==0 || s->quarter_sample==1);

  1153. 

  1154.     s->me.pre_penalty_factor    = get_penalty_factor(s, s->avctx->me_pre_cmp);

  1155. 

  1156.     get_limits(s, &range, &xmin, &ymin, &xmax, &ymax);

  1157.     rel_xmin= xmin - mb_x*16;

  1158.     rel_xmax= xmax - mb_x*16;

  1159.     rel_ymin= ymin - mb_y*16;

  1160.     rel_ymax= ymax - mb_y*16;

  1161.     s->me.skip=0;

  1162. 

  1163.     P_LEFT[0]       = s->p_mv_table[xy + 1][0];

  1164.     P_LEFT[1]       = s->p_mv_table[xy + 1][1];

  1165. 

  1166.     if(P_LEFT[0]       < (rel_xmin<<shift)) P_LEFT[0]       = (rel_xmin<<shift);

  1167. 

  1168.     /* special case for first line */

  1169.     if (mb_y == s->mb_height-1) {

  1170.         pred_x= P_LEFT[0];

  1171.         pred_y= P_LEFT[1];

  1172.         P_TOP[0]= P_TOPRIGHT[0]= P_MEDIAN[0]=

  1173.         P_TOP[1]= P_TOPRIGHT[1]= P_MEDIAN[1]= 0; //FIXME 

  1174.     } else {

  1175.         P_TOP[0]      = s->p_mv_table[xy + mv_stride    ][0];

  1176.         P_TOP[1]      = s->p_mv_table[xy + mv_stride    ][1];

  1177.         P_TOPRIGHT[0] = s->p_mv_table[xy + mv_stride - 1][0];

  1178.         P_TOPRIGHT[1] = s->p_mv_table[xy + mv_stride - 1][1];

  1179.         if(P_TOP[1]      < (rel_ymin<<shift)) P_TOP[1]     = (rel_ymin<<shift);

  1180.         if(P_TOPRIGHT[0] > (rel_xmax<<shift)) P_TOPRIGHT[0]= (rel_xmax<<shift);

  1181.         if(P_TOPRIGHT[1] < (rel_ymin<<shift)) P_TOPRIGHT[1]= (rel_ymin<<shift);

  1182.     

  1183.         P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

  1184.         P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

  1185. 

  1186.         pred_x = P_MEDIAN[0];

  1187.         pred_y = P_MEDIAN[1];

  1188.     }

  1189.     dmin = s->me.pre_motion_search(s, 0, &mx, &my, P, pred_x, pred_y, rel_xmin, rel_ymin, rel_xmax, rel_ymax, 

  1190.                                    &s->last_picture, s->p_mv_table, (1<<16)>>shift, mv_penalty);

  1191. 

  1192.     s->p_mv_table[xy][0] = mx<<shift;

  1193.     s->p_mv_table[xy][1] = my<<shift;

  1194.     

  1195.     return dmin;

  1196. }

  1197. 

  1198. static int ff_estimate_motion_b(MpegEncContext * s,

  1199.                        int mb_x, int mb_y, int16_t (*mv_table)[2], Picture *picture, int f_code)

  1200. {

  1201.     int mx, my, range, dmin;

  1202.     int xmin, ymin, xmax, ymax;

  1203.     int rel_xmin, rel_ymin, rel_xmax, rel_ymax;

  1204.     int pred_x=0, pred_y=0;

  1205.     int P[10][2];

  1206.     const int shift= 1+s->quarter_sample;

  1207.     const int mot_stride = s->mb_width + 2;

  1208.     const int mot_xy = (mb_y + 1)*mot_stride + mb_x + 1;

  1209.     uint8_t * const ref_picture= picture->data[0];

  1210.     uint16_t * const mv_penalty= s->me.mv_penalty[f_code] + MAX_MV;

  1211.     int mv_scale;

  1212.         

  1213.     s->me.penalty_factor    = get_penalty_factor(s, s->avctx->me_cmp);

  1214.     s->me.sub_penalty_factor= get_penalty_factor(s, s->avctx->me_sub_cmp);

  1215.     s->me.mb_penalty_factor = get_penalty_factor(s, s->avctx->mb_cmp);

  1216. 

  1217.     get_limits(s, &range, &xmin, &ymin, &xmax, &ymax);

  1218.     rel_xmin= xmin - mb_x*16;

  1219.     rel_xmax= xmax - mb_x*16;

  1220.     rel_ymin= ymin - mb_y*16;

  1221.     rel_ymax= ymax - mb_y*16;

  1222. 

  1223.     switch(s->me_method) {

  1224.     case ME_ZERO:

  1225.     default:

  1226. 	no_motion_search(s, &mx, &my);

  1227.         dmin = 0;

  1228.         mx-= mb_x*16;

  1229.         my-= mb_y*16;

  1230.         break;

  1231.     case ME_FULL:

  1232. 	dmin = full_motion_search(s, &mx, &my, range, xmin, ymin, xmax, ymax, ref_picture);

  1233.         mx-= mb_x*16;

  1234.         my-= mb_y*16;

  1235.         break;

  1236.     case ME_LOG:

  1237. 	dmin = log_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);

  1238.         mx-= mb_x*16;

  1239.         my-= mb_y*16;

  1240.         break;

  1241.     case ME_PHODS:

  1242. 	dmin = phods_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);

  1243.         mx-= mb_x*16;

  1244.         my-= mb_y*16;

  1245.         break;

  1246.     case ME_X1:

  1247.     case ME_EPZS:

  1248.        {

  1249.             P_LEFT[0]        = mv_table[mot_xy - 1][0];

  1250.             P_LEFT[1]        = mv_table[mot_xy - 1][1];

  1251. 

  1252.             if(P_LEFT[0]       > (rel_xmax<<shift)) P_LEFT[0]       = (rel_xmax<<shift);

  1253. 

  1254.             /* special case for first line */

  1255.             if (mb_y) {

  1256.                 P_TOP[0] = mv_table[mot_xy - mot_stride             ][0];

  1257.                 P_TOP[1] = mv_table[mot_xy - mot_stride             ][1];

  1258.                 P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1         ][0];

  1259.                 P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1         ][1];

  1260.                 if(P_TOP[1] > (rel_ymax<<shift)) P_TOP[1]= (rel_ymax<<shift);

  1261.                 if(P_TOPRIGHT[0] < (rel_xmin<<shift)) P_TOPRIGHT[0]= (rel_xmin<<shift);

  1262.                 if(P_TOPRIGHT[1] > (rel_ymax<<shift)) P_TOPRIGHT[1]= (rel_ymax<<shift);

  1263.         

  1264.                 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

  1265.                 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

  1266.             }

  1267.             pred_x= P_LEFT[0];

  1268.             pred_y= P_LEFT[1];

  1269.         }

  1270.         

  1271.         if(mv_table == s->b_forw_mv_table){

  1272.             mv_scale= (s->pb_time<<16) / (s->pp_time<<shift);

  1273.         }else{

  1274.             mv_scale= ((s->pb_time - s->pp_time)<<16) / (s->pp_time<<shift);

  1275.         }

  1276.         

  1277.         dmin = s->me.motion_search[0](s, 0, &mx, &my, P, pred_x, pred_y, rel_xmin, rel_ymin, rel_xmax, rel_ymax, 

  1278.                                       picture, s->p_mv_table, mv_scale, mv_penalty);

  1279.  

  1280.         break;

  1281.     }

  1282.     

  1283.     dmin= s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,

  1284. 				   pred_x, pred_y, picture, 0, 0, mv_penalty);

  1285.                                    

  1286.     if(s->avctx->me_sub_cmp != s->avctx->mb_cmp && !s->me.skip)

  1287.         dmin= s->me.get_mb_score(s, mx, my, pred_x, pred_y, picture, mv_penalty);

  1288. 

  1289. //printf("%d %d %d %d//", s->mb_x, s->mb_y, mx, my);

  1290. //    s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;

  1291.     mv_table[mot_xy][0]= mx;

  1292.     mv_table[mot_xy][1]= my;

  1293. 

  1294.     return dmin;

  1295. }

  1296. 

  1297. static inline int check_bidir_mv(MpegEncContext * s,

  1298.                    int mb_x, int mb_y,

  1299.                    int motion_fx, int motion_fy,

  1300.                    int motion_bx, int motion_by,

  1301.                    int pred_fx, int pred_fy,

  1302.                    int pred_bx, int pred_by)

  1303. {

  1304.     //FIXME optimize?

  1305.     //FIXME move into template?

  1306.     //FIXME better f_code prediction (max mv & distance)

  1307.     uint16_t *mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV; // f_code of the prev frame

  1308.     uint8_t *dest_y = s->me.scratchpad;

  1309.     uint8_t *ptr;

  1310.     int dxy;

  1311.     int src_x, src_y;

  1312.     int fbmin;

  1313. 

  1314.     if(s->quarter_sample){

  1315.         dxy = ((motion_fy & 3) << 2) | (motion_fx & 3);

  1316.         src_x = mb_x * 16 + (motion_fx >> 2);

  1317.         src_y = mb_y * 16 + (motion_fy >> 2);

  1318.         assert(src_x >=-16 && src_x<=s->width);

  1319.         assert(src_y >=-16 && src_y<=s->height);

  1320. 

  1321.         ptr = s->last_picture.data[0] + (src_y * s->linesize) + src_x;

  1322.         s->dsp.put_qpel_pixels_tab[0][dxy](dest_y    , ptr    , s->linesize);

  1323. 

  1324.         dxy = ((motion_by & 3) << 2) | (motion_bx & 3);

  1325.         src_x = mb_x * 16 + (motion_bx >> 2);

  1326.         src_y = mb_y * 16 + (motion_by >> 2);

  1327.         assert(src_x >=-16 && src_x<=s->width);

  1328.         assert(src_y >=-16 && src_y<=s->height);

  1329.     

  1330.         ptr = s->next_picture.data[0] + (src_y * s->linesize) + src_x;

  1331.         s->dsp.avg_qpel_pixels_tab[0][dxy](dest_y    , ptr    , s->linesize);

  1332.     }else{

  1333.         dxy = ((motion_fy & 1) << 1) | (motion_fx & 1);

  1334.         src_x = mb_x * 16 + (motion_fx >> 1);

  1335.         src_y = mb_y * 16 + (motion_fy >> 1);

  1336.         assert(src_x >=-16 && src_x<=s->width);

  1337.         assert(src_y >=-16 && src_y<=s->height);

  1338. 

  1339.         ptr = s->last_picture.data[0] + (src_y * s->linesize) + src_x;

  1340.         s->dsp.put_pixels_tab[0][dxy](dest_y    , ptr    , s->linesize, 16);

  1341. 

  1342.         dxy = ((motion_by & 1) << 1) | (motion_bx & 1);

  1343.         src_x = mb_x * 16 + (motion_bx >> 1);

  1344.         src_y = mb_y * 16 + (motion_by >> 1);

  1345.         assert(src_x >=-16 && src_x<=s->width);

  1346.         assert(src_y >=-16 && src_y<=s->height);

  1347.     

  1348.         ptr = s->next_picture.data[0] + (src_y * s->linesize) + src_x;

  1349.         s->dsp.avg_pixels_tab[0][dxy](dest_y    , ptr    , s->linesize, 16);

  1350.     }

  1351. 

  1352.     fbmin = (mv_penalty[motion_fx-pred_fx] + mv_penalty[motion_fy-pred_fy])*s->me.mb_penalty_factor

  1353.            +(mv_penalty[motion_bx-pred_bx] + mv_penalty[motion_by-pred_by])*s->me.mb_penalty_factor

  1354.            + s->dsp.mb_cmp[0](s, s->new_picture.data[0] + mb_x*16 + mb_y*16*s->linesize, dest_y, s->linesize);

  1355.            

  1356.     if(s->avctx->mb_cmp&FF_CMP_CHROMA){

  1357.     }

  1358.     //FIXME CHROMA !!!

  1359.            

  1360.     return fbmin;

  1361. }

  1362. 

  1363. /* refine the bidir vectors in hq mode and return the score in both lq & hq mode*/

  1364. static inline int bidir_refine(MpegEncContext * s,

  1365.                                   int mb_x, int mb_y)

  1366. {

  1367.     const int mot_stride = s->mb_width + 2;

  1368.     const int xy = (mb_y + 1)*mot_stride + mb_x + 1;

  1369.     int fbmin;

  1370.     int pred_fx= s->b_bidir_forw_mv_table[xy-1][0];

  1371.     int pred_fy= s->b_bidir_forw_mv_table[xy-1][1];

  1372.     int pred_bx= s->b_bidir_back_mv_table[xy-1][0];

  1373.     int pred_by= s->b_bidir_back_mv_table[xy-1][1];

  1374.     int motion_fx= s->b_bidir_forw_mv_table[xy][0]= s->b_forw_mv_table[xy][0];

  1375.     int motion_fy= s->b_bidir_forw_mv_table[xy][1]= s->b_forw_mv_table[xy][1];

  1376.     int motion_bx= s->b_bidir_back_mv_table[xy][0]= s->b_back_mv_table[xy][0];

  1377.     int motion_by= s->b_bidir_back_mv_table[xy][1]= s->b_back_mv_table[xy][1];

  1378. 

  1379.     //FIXME do refinement and add flag

  1380.     

  1381.     fbmin= check_bidir_mv(s, mb_x, mb_y, 

  1382.                           motion_fx, motion_fy,

  1383.                           motion_bx, motion_by,

  1384.                           pred_fx, pred_fy,

  1385.                           pred_bx, pred_by);

  1386. 

  1387.    return fbmin;

  1388. }

  1389. 

  1390. static inline int direct_search(MpegEncContext * s,

  1391.                                 int mb_x, int mb_y)

  1392. {

  1393.     int P[10][2];

  1394.     const int mot_stride = s->mb_width + 2;

  1395.     const int mot_xy = (mb_y + 1)*mot_stride + mb_x + 1;

  1396.     const int shift= 1+s->quarter_sample;

  1397.     int dmin, i;

  1398.     const int time_pp= s->pp_time;

  1399.     const int time_pb= s->pb_time;

  1400.     int mx, my, xmin, xmax, ymin, ymax;

  1401.     int16_t (*mv_table)[2]= s->b_direct_mv_table;

  1402.     uint16_t * const mv_penalty= s->me.mv_penalty[1] + MAX_MV;

  1403.     

  1404.     ymin= xmin=(-32)>>shift;

  1405.     ymax= xmax=   31>>shift;

  1406. 

  1407.     if(s->co_located_type_table[mb_x + mb_y*s->mb_width]==CO_LOCATED_TYPE_4MV){

  1408.         s->mv_type= MV_TYPE_8X8;

  1409.     }else{

  1410.         s->mv_type= MV_TYPE_16X16;

  1411.     }

  1412. 

  1413.     for(i=0; i<4; i++){

  1414.         int index= s->block_index[i];

  1415.         int min, max;

  1416.     

  1417.         s->me.co_located_mv[i][0]= s->motion_val[index][0];

  1418.         s->me.co_located_mv[i][1]= s->motion_val[index][1];

  1419.         s->me.direct_basis_mv[i][0]= s->me.co_located_mv[i][0]*time_pb/time_pp + ((i& 1)<<(shift+3));

  1420.         s->me.direct_basis_mv[i][1]= s->me.co_located_mv[i][1]*time_pb/time_pp + ((i>>1)<<(shift+3));

  1421. //        s->me.direct_basis_mv[1][i][0]= s->me.co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(shift+3);

  1422. //        s->me.direct_basis_mv[1][i][1]= s->me.co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(shift+3);

  1423. 

  1424.         max= FFMAX(s->me.direct_basis_mv[i][0], s->me.direct_basis_mv[i][0] - s->me.co_located_mv[i][0])>>shift;

  1425.         min= FFMIN(s->me.direct_basis_mv[i][0], s->me.direct_basis_mv[i][0] - s->me.co_located_mv[i][0])>>shift;

  1426.         max+= (2*mb_x + (i& 1))*8 + 1; // +-1 is for the simpler rounding

  1427.         min+= (2*mb_x + (i& 1))*8 - 1;

  1428.         xmax= FFMIN(xmax, s->width - max);

  1429.         xmin= FFMAX(xmin, - 16     - min);

  1430. 

  1431.         max= FFMAX(s->me.direct_basis_mv[i][1], s->me.direct_basis_mv[i][1] - s->me.co_located_mv[i][1])>>shift;

  1432.         min= FFMIN(s->me.direct_basis_mv[i][1], s->me.direct_basis_mv[i][1] - s->me.co_located_mv[i][1])>>shift;

  1433.         max+= (2*mb_y + (i>>1))*8 + 1; // +-1 is for the simpler rounding

  1434.         min+= (2*mb_y + (i>>1))*8 - 1;

  1435.         ymax= FFMIN(ymax, s->height - max);

  1436.         ymin= FFMAX(ymin, - 16      - min);

  1437.         

  1438.         if(s->mv_type == MV_TYPE_16X16) break;

  1439.     }

  1440.     

  1441.     assert(xmax <= 15 && ymax <= 15 && xmin >= -16 && ymin >= -16);

  1442.     

  1443.     if(xmax < 0 || xmin >0 || ymax < 0 || ymin > 0){

  1444.         s->b_direct_mv_table[mot_xy][0]= 0;

  1445.         s->b_direct_mv_table[mot_xy][1]= 0;

  1446. 

  1447.         return 256*256*256*64;

  1448.     }

  1449. 

  1450.     P_LEFT[0]        = clip(mv_table[mot_xy - 1][0], xmin<<shift, xmax<<shift);

  1451.     P_LEFT[1]        = clip(mv_table[mot_xy - 1][1], ymin<<shift, ymax<<shift);

  1452. 

  1453.     /* special case for first line */

  1454.     if (mb_y) {

  1455.         P_TOP[0]      = clip(mv_table[mot_xy - mot_stride             ][0], xmin<<shift, xmax<<shift);

  1456.         P_TOP[1]      = clip(mv_table[mot_xy - mot_stride             ][1], ymin<<shift, ymax<<shift);

  1457.         P_TOPRIGHT[0] = clip(mv_table[mot_xy - mot_stride + 1         ][0], xmin<<shift, xmax<<shift);

  1458.         P_TOPRIGHT[1] = clip(mv_table[mot_xy - mot_stride + 1         ][1], ymin<<shift, ymax<<shift);

  1459.     

  1460.         P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

  1461.         P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

  1462.     }

  1463.  

  1464.     //FIXME direct_search  ptr in context!!! (needed for chroma anyway or this will get messy)   

  1465.     if(s->flags&CODEC_FLAG_QPEL){

  1466.         dmin = simple_direct_qpel_epzs_motion_search(s, 0, &mx, &my, P, 0, 0, xmin, ymin, xmax, ymax, 

  1467.                                                      &s->last_picture, mv_table, 1<<14, mv_penalty);

  1468.         dmin = simple_direct_qpel_qpel_motion_search(s, &mx, &my, dmin, xmin, ymin, xmax, ymax,

  1469.                                                 0, 0, &s->last_picture, 0, 0, mv_penalty);

  1470.         

  1471.         if(s->avctx->me_sub_cmp != s->avctx->mb_cmp && !s->me.skip)

  1472.             dmin= simple_direct_qpel_qpel_get_mb_score(s, mx, my, 0, 0, &s->last_picture, mv_penalty);

  1473.     }else{

  1474.         dmin = simple_direct_hpel_epzs_motion_search(s, 0, &mx, &my, P, 0, 0, xmin, ymin, xmax, ymax, 

  1475.                                                      &s->last_picture, mv_table, 1<<15, mv_penalty);

  1476.         dmin = simple_direct_hpel_hpel_motion_search(s, &mx, &my, dmin, xmin, ymin, xmax, ymax,

  1477.                                                 0, 0, &s->last_picture, 0, 0, mv_penalty);

  1478. 

  1479.         if(s->avctx->me_sub_cmp != s->avctx->mb_cmp && !s->me.skip)

  1480.             dmin= simple_direct_hpel_hpel_get_mb_score(s, mx, my, 0, 0, &s->last_picture, mv_penalty);

  1481.     }

  1482. 

  1483.     s->b_direct_mv_table[mot_xy][0]= mx;

  1484.     s->b_direct_mv_table[mot_xy][1]= my;

  1485.     return dmin;

  1486. }

  1487. 

  1488. void ff_estimate_b_frame_motion(MpegEncContext * s,

  1489.                              int mb_x, int mb_y)

  1490. {

  1491.     const int penalty_factor= s->me.mb_penalty_factor;

  1492.     int fmin, bmin, dmin, fbmin;

  1493.     int type=0;

  1494.     

  1495.     dmin= direct_search(s, mb_x, mb_y);

  1496. 

  1497.     fmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, &s->last_picture, s->f_code) + 3*penalty_factor;

  1498.     bmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, &s->next_picture, s->b_code) + 2*penalty_factor;

  1499. //printf(" %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);

  1500. 

  1501.     fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;

  1502. //printf("%d %d %d %d\n", dmin, fmin, bmin, fbmin);

  1503.     {

  1504.         int score= fmin;

  1505.         type = MB_TYPE_FORWARD;

  1506.         

  1507.         // RAL: No MB_TYPE_DIRECT in MPEG-1 video (only MPEG-4)

  1508.         if (s->codec_id != CODEC_ID_MPEG1VIDEO && dmin <= score){

  1509.             score = dmin;

  1510.             type = MB_TYPE_DIRECT;

  1511.         }

  1512.         if(bmin<score){

  1513.             score=bmin;

  1514.             type= MB_TYPE_BACKWARD; 

  1515.         }

  1516.         if(fbmin<score){

  1517.             score=fbmin;

  1518.             type= MB_TYPE_BIDIR;

  1519.         }

  1520.         

  1521.         score= ((unsigned)(score*score + 128*256))>>16;

  1522.         s->current_picture.mc_mb_var_sum += score;

  1523.         s->current_picture.mc_mb_var[mb_y*s->mb_width + mb_x] = score; //FIXME use SSE

  1524.     }

  1525. 

  1526.     if(s->flags&CODEC_FLAG_HQ){

  1527.         type= MB_TYPE_FORWARD | MB_TYPE_BACKWARD | MB_TYPE_BIDIR | MB_TYPE_DIRECT; //FIXME something smarter

  1528.         if(dmin>256*256*16) type&= ~MB_TYPE_DIRECT; //dont try direct mode if its invalid for this MB

  1529.     }

  1530. 

  1531.     s->mb_type[mb_y*s->mb_width + mb_x]= type;

  1532. }

  1533. 

  1534. /* find best f_code for ME which do unlimited searches */

  1535. int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)

  1536. {

  1537.     if(s->me_method>=ME_EPZS){

  1538.         int score[8];

  1539.         int i, y;

  1540.         uint8_t * fcode_tab= s->fcode_tab;

  1541.         int best_fcode=-1;

  1542.         int best_score=-10000000;

  1543. 

  1544.         for(i=0; i<8; i++) score[i]= s->mb_num*(8-i);

  1545. 

  1546.         for(y=0; y<s->mb_height; y++){

  1547.             int x;

  1548.             int xy= (y+1)* (s->mb_width+2) + 1;

  1549.             i= y*s->mb_width;

  1550.             for(x=0; x<s->mb_width; x++){

  1551.                 if(s->mb_type[i] & type){

  1552.                     int fcode= FFMAX(fcode_tab[mv_table[xy][0] + MAX_MV],

  1553.                                      fcode_tab[mv_table[xy][1] + MAX_MV]);

  1554.                     int j;

  1555.                     

  1556.                     for(j=0; j<fcode && j<8; j++){

  1557.                         if(s->pict_type==B_TYPE || s->current_picture.mc_mb_var[i] < s->current_picture.mb_var[i])

  1558.                             score[j]-= 170;

  1559.                     }

  1560.                 }

  1561.                 i++;

  1562.                 xy++;

  1563.             }

  1564.         }

  1565.         

  1566.         for(i=1; i<8; i++){

  1567.             if(score[i] > best_score){

  1568.                 best_score= score[i];

  1569.                 best_fcode= i;

  1570.             }

  1571. //            printf("%d %d\n", i, score[i]);

  1572.         }

  1573. 

  1574. //    printf("fcode: %d type: %d\n", i, s->pict_type);

  1575.         return best_fcode;

  1576. /*        for(i=0; i<=MAX_FCODE; i++){

  1577.             printf("%d ", mv_num[i]);

  1578.         }

  1579.         printf("\n");*/

  1580.     }else{

  1581.         return 1;

  1582.     }

  1583. }

  1584. 

  1585. void ff_fix_long_p_mvs(MpegEncContext * s)

  1586. {

  1587.     const int f_code= s->f_code;

  1588.     int y, range;

  1589. 

  1590.     range = (((s->codec_id == CODEC_ID_MPEG1VIDEO) ? 8 : 16) << f_code);

  1591.     

  1592.     if(s->msmpeg4_version) range= 16;

  1593.     

  1594.     if(s->avctx->me_range && range > s->avctx->me_range) range= s->avctx->me_range;

  1595.     

  1596.     /* clip / convert to intra 16x16 type MVs */

  1597.     for(y=0; y<s->mb_height; y++){

  1598.         int x;

  1599.         int xy= (y+1)* (s->mb_width+2)+1;

  1600.         int i= y*s->mb_width;

  1601.         for(x=0; x<s->mb_width; x++){

  1602.             if(s->mb_type[i]&MB_TYPE_INTER){

  1603.                 if(   s->p_mv_table[xy][0] >=range || s->p_mv_table[xy][0] <-range

  1604.                    || s->p_mv_table[xy][1] >=range || s->p_mv_table[xy][1] <-range){

  1605.                     s->mb_type[i] &= ~MB_TYPE_INTER;

  1606.                     s->mb_type[i] |= MB_TYPE_INTRA;

  1607.                     s->p_mv_table[xy][0] = 0;

  1608.                     s->p_mv_table[xy][1] = 0;

  1609. //clip++;

  1610.                 }

  1611. //else

  1612. //  noclip++;

  1613.             }

  1614.             xy++;

  1615.             i++;

  1616.         }

  1617.     }

  1618. //printf("%d no:%d %d//\n", clip, noclip, f_code);

  1619.     if(s->flags&CODEC_FLAG_4MV){

  1620.         const int wrap= 2+ s->mb_width*2;

  1621. 

  1622.         /* clip / convert to intra 8x8 type MVs */

  1623.         for(y=0; y<s->mb_height; y++){

  1624.             int xy= (y*2 + 1)*wrap + 1;

  1625.             int i= y*s->mb_width;

  1626.             int x;

  1627. 

  1628.             for(x=0; x<s->mb_width; x++){

  1629.                 if(s->mb_type[i]&MB_TYPE_INTER4V){

  1630.                     int block;

  1631.                     for(block=0; block<4; block++){

  1632.                         int off= (block& 1) + (block>>1)*wrap;

  1633.                         int mx= s->motion_val[ xy + off ][0];

  1634.                         int my= s->motion_val[ xy + off ][1];

  1635. 

  1636.                         if(   mx >=range || mx <-range

  1637.                            || my >=range || my <-range){

  1638.                             s->mb_type[i] &= ~MB_TYPE_INTER4V;

  1639.                             s->mb_type[i] |= MB_TYPE_INTRA;

  1640.                         }

  1641.                     }

  1642.                 }

  1643.                 xy+=2;

  1644.                 i++;

  1645.             }

  1646.         }

  1647.     }

  1648. }

  1649. 

  1650. void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type)

  1651. {

  1652.     int y;

  1653. 

  1654.     // RAL: 8 in MPEG-1, 16 in MPEG-4

  1655.     int range = (((s->codec_id == CODEC_ID_MPEG1VIDEO) ? 8 : 16) << f_code);

  1656.     

  1657.     if(s->avctx->me_range && range > s->avctx->me_range) range= s->avctx->me_range;

  1658. 

  1659.     /* clip / convert to intra 16x16 type MVs */

  1660.     for(y=0; y<s->mb_height; y++){

  1661.         int x;

  1662.         int xy= (y+1)* (s->mb_width+2)+1;

  1663.         int i= y*s->mb_width;

  1664.         for(x=0; x<s->mb_width; x++){

  1665.             if (s->mb_type[i] & type){    // RAL: "type" test added...

  1666.                 if(   mv_table[xy][0] >=range || mv_table[xy][0] <-range

  1667.                    || mv_table[xy][1] >=range || mv_table[xy][1] <-range){

  1668. 

  1669.                     if(s->codec_id == CODEC_ID_MPEG1VIDEO && 0){

  1670.                     }else{

  1671.                         if     (mv_table[xy][0] > range-1) mv_table[xy][0]=  range-1;

  1672.                         else if(mv_table[xy][0] < -range ) mv_table[xy][0]= -range;

  1673.                         if     (mv_table[xy][1] > range-1) mv_table[xy][1]=  range-1;

  1674.                         else if(mv_table[xy][1] < -range ) mv_table[xy][1]= -range;

  1675.                     }

  1676.                 }

  1677.             }

  1678.             xy++;

  1679.             i++;

  1680.         }

  1681.     }

  1682. }