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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.  

  24. /**

  25.  * @file motion_est.c

  26.  * Motion estimation.

  27.  */

  28.  

  29. #include <stdlib.h>

  30. #include <stdio.h>

  31. #include "avcodec.h"

  32. #include "dsputil.h"

  33. #include "mpegvideo.h"

  34. 

  35. //#undef NDEBUG

  36. //#include <assert.h>

  37. 

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

  39. 

  40. #define P_LEFT P[1]

  41. #define P_TOP P[2]

  42. #define P_TOPRIGHT P[3]

  43. #define P_MEDIAN P[4]

  44. #define P_MV1 P[9]

  45. 

  46. static inline int sad_hpel_motion_search(MpegEncContext * s,

  47. 				  int *mx_ptr, int *my_ptr, int dmin,

  48. 				  int xmin, int ymin, int xmax, int ymax,

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

  50.                                   int n, int size, uint8_t * const mv_penalty);

  51. 

  52. static inline int update_map_generation(MpegEncContext * s)

  53. {

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

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

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

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

  58.     }

  59.     return s->me.map_generation;

  60. }

  61. 

  62. /* shape adaptive search stuff */

  63. typedef struct Minima{

  64.     int height;

  65.     int x, y;

  66.     int checked;

  67. }Minima;

  68. 

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

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

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

  72.     

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

  74. }

  75.                                   

  76. /* SIMPLE */

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

  78. 

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

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

  81. 

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

  83. {\

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

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

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

  87. }

  88. 

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

  90. {\

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

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

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

  94. }

  95. 

  96. #include "motion_est_template.c"

  97. #undef RENAME

  98. #undef CMP

  99. #undef CMP_HPEL

  100. #undef CMP_QPEL

  101. #undef INIT

  102. 

  103. /* SIMPLE CHROMA */

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

  105. 

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

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

  108. if(chroma_cmp){\

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

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

  111. \

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

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

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

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

  116. }

  117. 

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

  119. {\

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

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

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

  123.     if(chroma_cmp_sub){\

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

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

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

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

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

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

  130.     }\

  131. }

  132. 

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

  134. {\

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

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

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

  138.     if(chroma_cmp_sub){\

  139.         int cxy, c;\

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

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

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

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

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

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

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

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

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

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

  150.     }\

  151. }

  152. 

  153. #include "motion_est_template.c"

  154. #undef RENAME

  155. #undef CMP

  156. #undef CMP_HPEL

  157. #undef CMP_QPEL

  158. #undef INIT

  159. 

  160. /* SIMPLE DIRECT HPEL */

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

  162. //FIXME precalc divisions stuff

  163. 

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

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

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

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

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

  169.         int i;\

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

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

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

  173.             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;\

  174.             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;\

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

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

  177. \

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

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

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

  181.         }\

  182.     }else{\

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

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

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

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

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

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

  189.         \

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

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

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

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

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

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

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

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

  198. \

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

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

  201.     }\

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

  203. }else\

  204.     d= 256*256*256*32;

  205. 

  206. 

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

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

  209. 

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

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

  212.     

  213. #include "motion_est_template.c"

  214. #undef RENAME

  215. #undef CMP

  216. #undef CMP_HPEL

  217. #undef CMP_QPEL

  218. #undef INIT

  219. #undef CMP_DIRECT

  220. 

  221. /* SIMPLE DIRECT QPEL */

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

  223. 

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

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

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

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

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

  229.         int i;\

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

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

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

  233.             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;\

  234.             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;\

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

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

  237. \

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

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

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

  241.         }\

  242.     }else{\

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

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

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

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

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

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

  249. \

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

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

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

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

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

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

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

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

  258.     }\

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

  260. }else\

  261.     d= 256*256*256*32;

  262. 

  263. 

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

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

  266. 

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

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

  269. 

  270. #include "motion_est_template.c"

  271. #undef RENAME

  272. #undef CMP

  273. #undef CMP_HPEL

  274. #undef CMP_QPEL

  275. #undef INIT

  276. #undef CMP__DIRECT

  277. 

  278. 

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

  280.     return 0;

  281. }

  282. 

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

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

  285.     int i;

  286.     

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

  288. 

  289.     switch(type&0xFF){

  290.     case FF_CMP_SAD:

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

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

  293.         break;

  294.     case FF_CMP_SATD:

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

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

  297.         break;

  298.     case FF_CMP_SSE:

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

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

  301.         break;

  302.     case FF_CMP_DCT:

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

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

  305.         break;

  306.     case FF_CMP_PSNR:

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

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

  309.         break;

  310.     case FF_CMP_BIT:

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

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

  313.         break;

  314.     case FF_CMP_RD:

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

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

  317.         break;

  318.     case FF_CMP_ZERO:

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

  320.             cmp[i]= zero_cmp;

  321.         }

  322.         break;

  323.     default:

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

  325.     }

  326. }

  327. 

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

  329.     switch(type&0xFF){

  330.     default:

  331.     case FF_CMP_SAD:

  332.         return s->qscale*2;

  333.     case FF_CMP_DCT:

  334.         return s->qscale*3;

  335.     case FF_CMP_SATD:

  336.         return s->qscale*6;

  337.     case FF_CMP_SSE:

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

  339.     case FF_CMP_BIT:

  340.         return 1;

  341.     case FF_CMP_RD:

  342.     case FF_CMP_PSNR:

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

  344.     }

  345. }

  346. 

  347. void ff_init_me(MpegEncContext *s){

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

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

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

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

  352. 

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

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

  355.             s->me.sub_motion_search= simple_chroma_qpel_motion_search;

  356.         else

  357.             s->me.sub_motion_search= simple_qpel_motion_search;

  358.     }else{

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

  360.             s->me.sub_motion_search= simple_chroma_hpel_motion_search;

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

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

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

  364.             s->me.sub_motion_search= sad_hpel_motion_search;

  365.         else

  366.             s->me.sub_motion_search= simple_hpel_motion_search;

  367.     }

  368. 

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

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

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

  372.     }else{

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

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

  375.     }

  376.     

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

  378.         s->me.pre_motion_search= simple_chroma_epzs_motion_search;

  379.     }else{

  380.         s->me.pre_motion_search= simple_epzs_motion_search;

  381.     }

  382.     

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

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

  385.             s->me.get_mb_score= simple_chroma_qpel_get_mb_score;

  386.         else

  387.             s->me.get_mb_score= simple_qpel_get_mb_score;

  388.     }else{

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

  390.             s->me.get_mb_score= simple_chroma_hpel_get_mb_score;

  391.         else

  392.             s->me.get_mb_score= simple_hpel_get_mb_score;

  393.     }

  394. }

  395.       

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

  397. {

  398.     int s, i, j;

  399. 

  400.     s = 0;

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

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

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

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

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

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

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

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

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

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

  411. 	    pix += 8;

  412. 	}

  413. 	pix += line_size - 16;

  414.     }

  415.     return s;

  416. }

  417. 

  418. static inline void no_motion_search(MpegEncContext * s,

  419. 				    int *mx_ptr, int *my_ptr)

  420. {

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

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

  423. }

  424. 

  425. static int full_motion_search(MpegEncContext * s,

  426.                               int *mx_ptr, int *my_ptr, int range,

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

  428. {

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

  430.     int mx, my, dmin, d;

  431.     uint8_t *pix;

  432. 

  433.     xx = 16 * s->mb_x;

  434.     yy = 16 * s->mb_y;

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

  436.     if (x1 < xmin)

  437. 	x1 = xmin;

  438.     x2 = xx + range - 1;

  439.     if (x2 > xmax)

  440. 	x2 = xmax;

  441.     y1 = yy - range + 1;

  442.     if (y1 < ymin)

  443. 	y1 = ymin;

  444.     y2 = yy + range - 1;

  445.     if (y2 > ymax)

  446. 	y2 = ymax;

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

  448.     dmin = 0x7fffffff;

  449.     mx = 0;

  450.     my = 0;

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

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

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

  454. 			     s->linesize);

  455. 	    if (d < dmin ||

  456. 		(d == dmin &&

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

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

  459. 		dmin = d;

  460. 		mx = x;

  461. 		my = y;

  462. 	    }

  463. 	}

  464.     }

  465. 

  466.     *mx_ptr = mx;

  467.     *my_ptr = my;

  468. 

  469. #if 0

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

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

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

  473.     }

  474. #endif

  475.     return dmin;

  476. }

  477. 

  478. 

  479. static int log_motion_search(MpegEncContext * s,

  480.                              int *mx_ptr, int *my_ptr, int range,

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

  482. {

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

  484.     int mx, my, dmin, d;

  485.     uint8_t *pix;

  486. 

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

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

  489. 

  490.     /* Left limit */

  491.     x1 = xx - range;

  492.     if (x1 < xmin)

  493. 	x1 = xmin;

  494. 

  495.     /* Right limit */

  496.     x2 = xx + range;

  497.     if (x2 > xmax)

  498. 	x2 = xmax;

  499. 

  500.     /* Upper limit */

  501.     y1 = yy - range;

  502.     if (y1 < ymin)

  503. 	y1 = ymin;

  504. 

  505.     /* Lower limit */

  506.     y2 = yy + range;

  507.     if (y2 > ymax)

  508. 	y2 = ymax;

  509. 

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

  511.     dmin = 0x7fffffff;

  512.     mx = 0;

  513.     my = 0;

  514. 

  515.     do {

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

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

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

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

  520. 		    dmin = d;

  521. 		    mx = x;

  522. 		    my = y;

  523. 		}

  524. 	    }

  525. 	}

  526. 

  527. 	range = range >> 1;

  528. 

  529. 	x1 = mx - range;

  530. 	if (x1 < xmin)

  531. 	    x1 = xmin;

  532. 

  533. 	x2 = mx + range;

  534. 	if (x2 > xmax)

  535. 	    x2 = xmax;

  536. 

  537. 	y1 = my - range;

  538. 	if (y1 < ymin)

  539. 	    y1 = ymin;

  540. 

  541. 	y2 = my + range;

  542. 	if (y2 > ymax)

  543. 	    y2 = ymax;

  544. 

  545.     } while (range >= 1);

  546. 

  547. #ifdef DEBUG

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

  549. #endif

  550.     *mx_ptr = mx;

  551.     *my_ptr = my;

  552.     return dmin;

  553. }

  554. 

  555. static int phods_motion_search(MpegEncContext * s,

  556.                                int *mx_ptr, int *my_ptr, int range,

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

  558. {

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

  560.     int mx, my, dminx, dminy;

  561.     uint8_t *pix;

  562. 

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

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

  565. 

  566.     /* Left limit */

  567.     x1 = xx - range;

  568.     if (x1 < xmin)

  569. 	x1 = xmin;

  570. 

  571.     /* Right limit */

  572.     x2 = xx + range;

  573.     if (x2 > xmax)

  574. 	x2 = xmax;

  575. 

  576.     /* Upper limit */

  577.     y1 = yy - range;

  578.     if (y1 < ymin)

  579. 	y1 = ymin;

  580. 

  581.     /* Lower limit */

  582.     y2 = yy + range;

  583.     if (y2 > ymax)

  584. 	y2 = ymax;

  585. 

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

  587.     mx = 0;

  588.     my = 0;

  589. 

  590.     x = xx;

  591.     y = yy;

  592.     do {

  593.         dminx = 0x7fffffff;

  594.         dminy = 0x7fffffff;

  595. 

  596. 	lastx = x;

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

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

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

  600. 		dminx = d;

  601. 		mx = x;

  602. 	    }

  603. 	}

  604. 

  605. 	x = lastx;

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

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

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

  609. 		dminy = d;

  610. 		my = y;

  611. 	    }

  612. 	}

  613. 

  614. 	range = range >> 1;

  615. 

  616. 	x = mx;

  617. 	y = my;

  618. 	x1 = mx - range;

  619. 	if (x1 < xmin)

  620. 	    x1 = xmin;

  621. 

  622. 	x2 = mx + range;

  623. 	if (x2 > xmax)

  624. 	    x2 = xmax;

  625. 

  626. 	y1 = my - range;

  627. 	if (y1 < ymin)

  628. 	    y1 = ymin;

  629. 

  630. 	y2 = my + range;

  631. 	if (y2 > ymax)

  632. 	    y2 = ymax;

  633. 

  634.     } while (range >= 1);

  635. 

  636. #ifdef DEBUG

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

  638. #endif

  639. 

  640.     /* half pixel search */

  641.     *mx_ptr = mx;

  642.     *my_ptr = my;

  643.     return dminy;

  644. }

  645. 

  646. 

  647. #define Z_THRESHOLD 256

  648. 

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

  650. {\

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

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

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

  654. }

  655. 

  656. static inline int sad_hpel_motion_search(MpegEncContext * s,

  657. 				  int *mx_ptr, int *my_ptr, int dmin,

  658. 				  int xmin, int ymin, int xmax, int ymax,

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

  660.                                   int n, int size, uint8_t * const mv_penalty)

  661. {

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

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

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

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

  666.     uint8_t *pix, *ptr;

  667.     op_pixels_abs_func pix_abs_x2;

  668.     op_pixels_abs_func pix_abs_y2;

  669.     op_pixels_abs_func pix_abs_xy2;

  670.     

  671.     if(size==0){

  672.         pix_abs_x2 = s->dsp.pix_abs16x16_x2;

  673.         pix_abs_y2 = s->dsp.pix_abs16x16_y2;

  674.         pix_abs_xy2= s->dsp.pix_abs16x16_xy2;

  675.     }else{

  676.         pix_abs_x2 = s->dsp.pix_abs8x8_x2;

  677.         pix_abs_y2 = s->dsp.pix_abs8x8_y2;

  678.         pix_abs_xy2= s->dsp.pix_abs8x8_xy2;

  679.     }

  680. 

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

  682. //    printf("S");

  683.         *mx_ptr = 0;

  684.         *my_ptr = 0;

  685.         return dmin;

  686.     }

  687. //    printf("N");

  688.         

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

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

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

  692. 

  693.     mx = *mx_ptr;

  694.     my = *my_ptr;

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

  696.     

  697.     dminh = dmin;

  698. 

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

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

  701.         int dx=0, dy=0;

  702.         int d, pen_x, pen_y; 

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

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

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

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

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

  708.         mx<<=1;

  709.         my<<=1;

  710. 

  711.         

  712.         pen_x= pred_x + mx;

  713.         pen_y= pred_y + my;

  714. 

  715.         ptr-= s->linesize;

  716.         if(t<=b){

  717.             CHECK_SAD_HALF_MV(y2 , 0, -1)

  718.             if(l<=r){

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

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

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

  722.                     ptr+= s->linesize;

  723.                 }else{

  724.                     ptr+= s->linesize;

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

  726.                 }

  727.                 CHECK_SAD_HALF_MV(x2 , -1,  0)

  728.             }else{

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

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

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

  732.                     ptr+= s->linesize;

  733.                 }else{

  734.                     ptr+= s->linesize;

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

  736.                 }

  737.                 CHECK_SAD_HALF_MV(x2 , +1,  0)

  738.             }

  739.         }else{

  740.             if(l<=r){

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

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

  743.                     ptr+= s->linesize;

  744.                 }else{

  745.                     ptr+= s->linesize;

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

  747.                 }

  748.                 CHECK_SAD_HALF_MV(x2 , -1,  0)

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

  750.             }else{

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

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

  753.                     ptr+= s->linesize;

  754.                 }else{

  755.                     ptr+= s->linesize;

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

  757.                 }

  758.                 CHECK_SAD_HALF_MV(x2 , +1,  0)

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

  760.             }

  761.             CHECK_SAD_HALF_MV(y2 ,  0, +1)

  762.         }

  763.         mx+=dx;

  764.         my+=dy;

  765. 

  766.     }else{

  767.         mx<<=1;

  768.         my<<=1;

  769.     }

  770. 

  771.     *mx_ptr = mx;

  772.     *my_ptr = my;

  773.     return dminh;

  774. }

  775. 

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

  777. {

  778.     const int xy= s->mb_x + s->mb_y*s->mb_stride;

  779.     

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

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

  782. 

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

  784.     if(mv4){

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

  786. 

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

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

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

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

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

  797.     }

  798. }

  799. 

  800. /**

  801.  * get fullpel ME search limits.

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

  803.  */

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

  805. {

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

  807.     else                   *range= 16;

  808. 

  809.     if (s->unrestricted_mv) {

  810.         *xmin = -16;

  811.         *ymin = -16;

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

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

  814.     } else {

  815.         *xmin = 0;

  816.         *ymin = 0;

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

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

  819.     }

  820.     

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

  822. }

  823. 

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

  825. {

  826.     int block;

  827.     int P[10][2];

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

  829.     uint8_t * const mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;

  830. 

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

  832.         int mx4, my4;

  833.         int pred_x4, pred_y4;

  834.         int dmin4;

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

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

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

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

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

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

  841.         const int rel_xmin4= xmin;

  842.         const int rel_xmax4= xmax;

  843.         const int rel_ymin4= ymin;

  844.         const int rel_ymax4= ymax;

  845. #else

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

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

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

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

  850. #endif

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

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

  853. 

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

  855. 

  856.         /* special case for first line */

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

  858.             pred_x4= P_LEFT[0];

  859.             pred_y4= P_LEFT[1];

  860.         } else {

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

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

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

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

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

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

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

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

  869.     

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

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

  872. 

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

  874.                 pred_x4 = P_MEDIAN[0];

  875.                 pred_y4 = P_MEDIAN[1];

  876. #if 0

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

  878.                 pred_x4= P_LEFT[0];

  879.                 pred_y4= P_LEFT[1];

  880.             }

  881. #endif

  882.         }

  883.         P_MV1[0]= mx;

  884.         P_MV1[1]= my;

  885. 

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

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

  888. 

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

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

  891.         

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

  893.             int dxy;

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

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

  896. 

  897.             if(s->quarter_sample){

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

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

  900. 

  901.                 if(s->no_rounding)

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

  903.                 else

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

  905.             }else{

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

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

  908. 

  909.                 if(s->no_rounding)

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

  911.                 else

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

  913.             }

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

  915.         }else

  916.             dmin_sum+= dmin4;

  917. 

  918.         if(s->quarter_sample){

  919.             mx4_sum+= mx4/2;

  920.             my4_sum+= my4/2;

  921.         }else{

  922.             mx4_sum+= mx4;

  923.             my4_sum+= my4;

  924.         }

  925.             

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

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

  928.     }

  929.     

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

  931.         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);

  932.     }

  933.     

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

  935.         int dxy;

  936.         int mx, my;

  937.         int offset;

  938. 

  939.         mx= ff_h263_round_chroma(mx4_sum);

  940.         my= ff_h263_round_chroma(my4_sum);

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

  942.         

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

  944.        

  945.         if(s->no_rounding){

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

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

  948.         }else{

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

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

  951.         }

  952. 

  953.         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);

  954.         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);

  955.     }

  956. 

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

  958.     /*case FF_CMP_SSE:

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

  960.     case FF_CMP_RD:

  961.         return dmin_sum;

  962.     default:

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

  964.     }

  965. }

  966. 

  967. void ff_estimate_p_frame_motion(MpegEncContext * s,

  968.                                 int mb_x, int mb_y)

  969. {

  970.     uint8_t *pix, *ppix;

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

  972.     int xmin, ymin, xmax, ymax;

  973.     int rel_xmin, rel_ymin, rel_xmax, rel_ymax;

  974.     int pred_x=0, pred_y=0;

  975.     int P[10][2];

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

  977.     int mb_type=0;

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

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

  980.     uint8_t * const mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;

  981.     

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

  983. 

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

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

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

  987. 

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

  989.     rel_xmin= xmin - mb_x*16;

  990.     rel_xmax= xmax - mb_x*16;

  991.     rel_ymin= ymin - mb_y*16;

  992.     rel_ymax= ymax - mb_y*16;

  993.     s->me.skip=0;

  994. 

  995.     switch(s->me_method) {

  996.     case ME_ZERO:

  997.     default:

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

  999.         mx-= mb_x*16;

  1000.         my-= mb_y*16;

  1001.         dmin = 0;

  1002.         break;

  1003.     case ME_FULL:

  1004. 	dmin = full_motion_search(s, &mx, &my, range, xmin, ymin, xmax, ymax, ref_picture);

  1005.         mx-= mb_x*16;

  1006.         my-= mb_y*16;

  1007.         break;

  1008.     case ME_LOG:

  1009. 	dmin = log_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);

  1010.         mx-= mb_x*16;

  1011.         my-= mb_y*16;

  1012.         break;

  1013.     case ME_PHODS:

  1014. 	dmin = phods_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);

  1015.         mx-= mb_x*16;

  1016.         my-= mb_y*16;

  1017.         break;

  1018.     case ME_X1:

  1019.     case ME_EPZS:

  1020.        {

  1021.             const int mot_stride = s->block_wrap[0];

  1022.             const int mot_xy = s->block_index[0];

  1023. 

  1024.             P_LEFT[0]       = s->motion_val[mot_xy - 1][0];

  1025.             P_LEFT[1]       = s->motion_val[mot_xy - 1][1];

  1026. 

  1027.             if(P_LEFT[0]       > (rel_xmax<<shift)) P_LEFT[0]       = (rel_xmax<<shift);

  1028. 

  1029.             if(mb_y) {

  1030.                 P_TOP[0]      = s->motion_val[mot_xy - mot_stride    ][0];

  1031.                 P_TOP[1]      = s->motion_val[mot_xy - mot_stride    ][1];

  1032.                 P_TOPRIGHT[0] = s->motion_val[mot_xy - mot_stride + 2][0];

  1033.                 P_TOPRIGHT[1] = s->motion_val[mot_xy - mot_stride + 2][1];

  1034.                 if(P_TOP[1]      > (rel_ymax<<shift)) P_TOP[1]     = (rel_ymax<<shift);

  1035.                 if(P_TOPRIGHT[0] < (rel_xmin<<shift)) P_TOPRIGHT[0]= (rel_xmin<<shift);

  1036.                 if(P_TOPRIGHT[1] > (rel_ymax<<shift)) P_TOPRIGHT[1]= (rel_ymax<<shift);

  1037.         

  1038.                 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

  1039.                 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

  1040. 

  1041.                 if(s->out_format == FMT_H263){

  1042.                     pred_x = P_MEDIAN[0];

  1043.                     pred_y = P_MEDIAN[1];

  1044.                 }else { /* mpeg1 at least */

  1045.                     pred_x= P_LEFT[0];

  1046.                     pred_y= P_LEFT[1];

  1047.                 }

  1048.             }else{

  1049.                 pred_x= P_LEFT[0];

  1050.                 pred_y= P_LEFT[1];

  1051.             }

  1052. 

  1053.         }

  1054.         dmin = s->me.motion_search[0](s, 0, &mx, &my, P, pred_x, pred_y, rel_xmin, rel_ymin, rel_xmax, rel_ymax, 

  1055.                                       &s->last_picture, s->p_mv_table, (1<<16)>>shift, mv_penalty);

  1056.  

  1057.         break;

  1058.     }

  1059. 

  1060.     /* intra / predictive decision */

  1061.     xx = mb_x * 16;

  1062.     yy = mb_y * 16;

  1063. 

  1064.     pix = s->new_picture.data[0] + (yy * s->linesize) + xx;

  1065.     /* At this point (mx,my) are full-pell and the relative displacement */

  1066.     ppix = ref_picture + ((yy+my) * s->linesize) + (xx+mx);

  1067.     

  1068.     sum = s->dsp.pix_sum(pix, s->linesize);

  1069.     

  1070.     varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;

  1071.     vard = (s->dsp.sse[0](NULL, pix, ppix, s->linesize)+128)>>8;

  1072. 

  1073. //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);

  1074.     pic->mb_var   [s->mb_stride * mb_y + mb_x] = varc;

  1075.     pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = vard;

  1076.     pic->mb_mean  [s->mb_stride * mb_y + mb_x] = (sum+128)>>8;

  1077. //    pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin; 

  1078.     pic->mb_var_sum    += varc;

  1079.     pic->mc_mb_var_sum += vard;

  1080. //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);

  1081.     

  1082. #if 0

  1083.     printf("varc=%4d avg_var=%4d (sum=%4d) vard=%4d mx=%2d my=%2d\n",

  1084. 	   varc, s->avg_mb_var, sum, vard, mx - xx, my - yy);

  1085. #endif

  1086.     if(s->avctx->mb_decision > FF_MB_DECISION_SIMPLE){

  1087.         if (vard <= 64 || vard < varc)

  1088.             s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);

  1089.         else

  1090.             s->scene_change_score+= s->qscale;

  1091. 

  1092.         if (vard*2 + 200 > varc)

  1093.             mb_type|= MB_TYPE_INTRA;

  1094.         if (varc*2 + 200 > vard){

  1095.             mb_type|= MB_TYPE_INTER;

  1096.             s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,

  1097. 				   pred_x, pred_y, &s->last_picture, 0, 0, mv_penalty);

  1098.         }else{

  1099.             mx <<=shift;

  1100.             my <<=shift;

  1101.         }

  1102.         if((s->flags&CODEC_FLAG_4MV)

  1103.            && !s->me.skip && varc>50 && vard>10){

  1104.             h263_mv4_search(s, rel_xmin, rel_ymin, rel_xmax, rel_ymax, mx, my, shift);

  1105.             mb_type|=MB_TYPE_INTER4V;

  1106. 

  1107.             set_p_mv_tables(s, mx, my, 0);

  1108.         }else

  1109.             set_p_mv_tables(s, mx, my, 1);

  1110.     }else{

  1111.         mb_type= MB_TYPE_INTER;

  1112. 

  1113.         dmin= s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,

  1114.                                     pred_x, pred_y, &s->last_picture, 0, 0, mv_penalty);

  1115.         

  1116.         if(s->avctx->me_sub_cmp != s->avctx->mb_cmp && !s->me.skip)

  1117.             dmin= s->me.get_mb_score(s, mx, my, pred_x, pred_y, &s->last_picture, mv_penalty);

  1118. 

  1119.         if((s->flags&CODEC_FLAG_4MV)

  1120.            && !s->me.skip && varc>50 && vard>10){

  1121.             int dmin4= h263_mv4_search(s, rel_xmin, rel_ymin, rel_xmax, rel_ymax, mx, my, shift);

  1122.             if(dmin4 < dmin){

  1123.                 mb_type= MB_TYPE_INTER4V;

  1124.                 dmin=dmin4;

  1125.             }

  1126.         }

  1127.         pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin; 

  1128.         set_p_mv_tables(s, mx, my, mb_type!=MB_TYPE_INTER4V);

  1129.         

  1130.         if (vard <= 64 || vard < varc) {

  1131.             s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);

  1132.         }else{

  1133.             s->scene_change_score+= s->qscale;

  1134.         }

  1135.     }

  1136. 

  1137.     s->mb_type[mb_y*s->mb_stride + mb_x]= mb_type;

  1138. }

  1139. 

  1140. int ff_pre_estimate_p_frame_motion(MpegEncContext * s,

  1141.                                     int mb_x, int mb_y)

  1142. {

  1143.     int mx, my, range, dmin;

  1144.     int xmin, ymin, xmax, ymax;

  1145.     int rel_xmin, rel_ymin, rel_xmax, rel_ymax;

  1146.     int pred_x=0, pred_y=0;

  1147.     int P[10][2];

  1148.     const int shift= 1+s->quarter_sample;

  1149.     uint8_t * const mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;

  1150.     const int xy= mb_x + mb_y*s->mb_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 + s->mb_stride    ][0];

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

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

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

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

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

  1210.     uint8_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.     uint8_t * const 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->h_edge_pos);

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

  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->h_edge_pos);

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

  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->h_edge_pos);

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

  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->h_edge_pos);

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

  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_stride;

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

  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_stride;

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

  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.     uint8_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(IS_8X8(s->next_picture.mb_type[mot_xy])){

  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_stride + mb_x] = score; //FIXME use SSE

  1524.     }

  1525. 

  1526.     if(s->avctx->mb_decision > FF_MB_DECISION_SIMPLE){

  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_stride + 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*s->mb_stride;

  1549.             for(x=0; x<s->mb_width; x++){

  1550.                 if(s->mb_type[xy] & type){

  1551.                     int fcode= FFMAX(fcode_tab[mv_table[xy][0] + MAX_MV],

  1552.                                      fcode_tab[mv_table[xy][1] + MAX_MV]);

  1553.                     int j;

  1554.                     

  1555.                     for(j=0; j<fcode && j<8; j++){

  1556.                         if(s->pict_type==B_TYPE || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])

  1557.                             score[j]-= 170;

  1558.                     }

  1559.                 }

  1560.                 xy++;

  1561.             }

  1562.         }

  1563.         

  1564.         for(i=1; i<8; i++){

  1565.             if(score[i] > best_score){

  1566.                 best_score= score[i];

  1567.                 best_fcode= i;

  1568.             }

  1569. //            printf("%d %d\n", i, score[i]);

  1570.         }

  1571. 

  1572. //    printf("fcode: %d type: %d\n", i, s->pict_type);

  1573.         return best_fcode;

  1574. /*        for(i=0; i<=MAX_FCODE; i++){

  1575.             printf("%d ", mv_num[i]);

  1576.         }

  1577.         printf("\n");*/

  1578.     }else{

  1579.         return 1;

  1580.     }

  1581. }

  1582. 

  1583. void ff_fix_long_p_mvs(MpegEncContext * s)

  1584. {

  1585.     const int f_code= s->f_code;

  1586.     int y, range;

  1587. 

  1588.     range = (((s->codec_id == CODEC_ID_MPEG1VIDEO) ? 8 : 16) << f_code);

  1589.     

  1590.     if(s->msmpeg4_version) range= 16;

  1591.     

  1592.     if(s->avctx->me_range && range > s->avctx->me_range) range= s->avctx->me_range;

  1593.     

  1594.     /* clip / convert to intra 16x16 type MVs */

  1595.     for(y=0; y<s->mb_height; y++){

  1596.         int x;

  1597.         int xy= y*s->mb_stride;

  1598.         for(x=0; x<s->mb_width; x++){

  1599.             if(s->mb_type[xy]&MB_TYPE_INTER){

  1600.                 if(   s->p_mv_table[xy][0] >=range || s->p_mv_table[xy][0] <-range

  1601.                    || s->p_mv_table[xy][1] >=range || s->p_mv_table[xy][1] <-range){

  1602.                     s->mb_type[xy] &= ~MB_TYPE_INTER;

  1603.                     s->mb_type[xy] |= MB_TYPE_INTRA;

  1604.                     s->p_mv_table[xy][0] = 0;

  1605.                     s->p_mv_table[xy][1] = 0;

  1606.                 }

  1607.             }

  1608.             xy++;

  1609.         }

  1610.     }

  1611. //printf("%d no:%d %d//\n", clip, noclip, f_code);

  1612.     if(s->flags&CODEC_FLAG_4MV){

  1613.         const int wrap= 2+ s->mb_width*2;

  1614. 

  1615.         /* clip / convert to intra 8x8 type MVs */

  1616.         for(y=0; y<s->mb_height; y++){

  1617.             int xy= (y*2 + 1)*wrap + 1;

  1618.             int i= y*s->mb_stride;

  1619.             int x;

  1620. 

  1621.             for(x=0; x<s->mb_width; x++){

  1622.                 if(s->mb_type[i]&MB_TYPE_INTER4V){

  1623.                     int block;

  1624.                     for(block=0; block<4; block++){

  1625.                         int off= (block& 1) + (block>>1)*wrap;

  1626.                         int mx= s->motion_val[ xy + off ][0];

  1627.                         int my= s->motion_val[ xy + off ][1];

  1628. 

  1629.                         if(   mx >=range || mx <-range

  1630.                            || my >=range || my <-range){

  1631.                             s->mb_type[i] &= ~MB_TYPE_INTER4V;

  1632.                             s->mb_type[i] |= MB_TYPE_INTRA;

  1633.                         }

  1634.                     }

  1635.                 }

  1636.                 xy+=2;

  1637.                 i++;

  1638.             }

  1639.         }

  1640.     }

  1641. }

  1642. 

  1643. void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type)

  1644. {

  1645.     int y;

  1646. 

  1647.     // RAL: 8 in MPEG-1, 16 in MPEG-4

  1648.     int range = (((s->codec_id == CODEC_ID_MPEG1VIDEO) ? 8 : 16) << f_code);

  1649.     

  1650.     if(s->avctx->me_range && range > s->avctx->me_range) range= s->avctx->me_range;

  1651. 

  1652.     /* clip / convert to intra 16x16 type MVs */

  1653.     for(y=0; y<s->mb_height; y++){

  1654.         int x;

  1655.         int xy= y*s->mb_stride;

  1656.         for(x=0; x<s->mb_width; x++){

  1657.             if (s->mb_type[xy] & type){    // RAL: "type" test added...

  1658.                 if(   mv_table[xy][0] >=range || mv_table[xy][0] <-range

  1659.                    || mv_table[xy][1] >=range || mv_table[xy][1] <-range){

  1660. 

  1661.                     if(s->codec_id == CODEC_ID_MPEG1VIDEO && 0){

  1662.                     }else{

  1663.                         if     (mv_table[xy][0] > range-1) mv_table[xy][0]=  range-1;

  1664.                         else if(mv_table[xy][0] < -range ) mv_table[xy][0]= -range;

  1665.                         if     (mv_table[xy][1] > range-1) mv_table[xy][1]=  range-1;

  1666.                         else if(mv_table[xy][1] < -range ) mv_table[xy][1]= -range;

  1667.                     }

  1668.                 }

  1669.             }

  1670.             xy++;

  1671.         }

  1672.     }

  1673. }