git.sesse.net Git - vlc/blob - plugins/motion/vdec_motion_common.c

   1 /*****************************************************************************
   2  * vdec_motion_common.c : common motion compensation routines common
   3  *****************************************************************************
   4  * Copyright (C) 1999, 2000 VideoLAN
   5  * $Id: vdec_motion_common.c,v 1.5 2001/02/20 15:03:00 massiot Exp $
   6  *
   7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
   8  *          Jean-Marc Dressler <polux@via.ecp.fr>
   9  *          Michel Lespinasse <walken@via.ecp.fr>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include "defs.h"
  30
  31 #include "config.h"
  32 #include "common.h"
  33 #include "threads.h"
  34 #include "mtime.h"
  35 #include "modules.h"
  36
  37 #include "intf_msg.h"
  38
  39 #include "video.h"
  40
  41 #include "vdec_motion.h"
  42 #include "vpar_blocks.h"
  43
  44 extern int motion_Probe( probedata_t *p_data );
  45
  46 static void vdec_MotionFieldField420  ( macroblock_t * p_mb );
  47 static void vdec_MotionFieldField422  ( macroblock_t * p_mb );
  48 static void vdec_MotionFieldField444  ( macroblock_t * p_mb );
  49 static void vdec_MotionField16x8420   ( macroblock_t * p_mb );
  50 static void vdec_MotionField16x8422   ( macroblock_t * p_mb );
  51 static void vdec_MotionField16x8444   ( macroblock_t * p_mb );
  52 static void vdec_MotionFieldDMV420    ( macroblock_t * p_mb );
  53 static void vdec_MotionFieldDMV422    ( macroblock_t * p_mb );
  54 static void vdec_MotionFieldDMV444    ( macroblock_t * p_mb );
  55 static void vdec_MotionFrameFrame420  ( macroblock_t * p_mb );
  56 static void vdec_MotionFrameFrame422  ( macroblock_t * p_mb );
  57 static void vdec_MotionFrameFrame444  ( macroblock_t * p_mb );
  58 static void vdec_MotionFrameField420  ( macroblock_t * p_mb );
  59 static void vdec_MotionFrameField422  ( macroblock_t * p_mb );
  60 static void vdec_MotionFrameField444  ( macroblock_t * p_mb );
  61 static void vdec_MotionFrameDMV420    ( macroblock_t * p_mb );
  62 static void vdec_MotionFrameDMV422    ( macroblock_t * p_mb );
  63 static void vdec_MotionFrameDMV444    ( macroblock_t * p_mb );
  64
  65 /*****************************************************************************
  66  * Functions exported as capabilities. They are declared as static so that
  67  * we don't pollute the namespace too much.
  68  *****************************************************************************/
  69 void motion_getfunctions( function_list_t * p_function_list )
  70 {
  71     p_function_list->pf_probe = motion_Probe;
  72
  73 #define list p_function_list->functions.motion
  74 #define motion_functions( yuv ) \
  75     list.pf_field_field_##yuv = vdec_MotionFieldField##yuv; \
  76     list.pf_field_16x8_##yuv  = vdec_MotionField16x8##yuv;  \
  77     list.pf_field_dmv_##yuv   = vdec_MotionFieldDMV##yuv;   \
  78     list.pf_frame_field_##yuv = vdec_MotionFrameField##yuv; \
  79     list.pf_frame_frame_##yuv = vdec_MotionFrameFrame##yuv; \
  80     list.pf_frame_dmv_##yuv   = vdec_MotionFrameDMV##yuv;
  81     motion_functions( 420 )
  82     motion_functions( 422 )
  83     motion_functions( 444 )
  84 #undef motion_functions
  85 #undef list
  86
  87     return;
  88 }
  89
  90 #define __MotionComponents(width,height)                \
  91 void MotionComponent_x_y_copy_##width##_##height ();    \
  92 void MotionComponent_X_y_copy_##width##_##height ();    \
  93 void MotionComponent_x_Y_copy_##width##_##height ();    \
  94 void MotionComponent_X_Y_copy_##width##_##height ();    \
  95 void MotionComponent_x_y_avg_##width##_##height ();     \
  96 void MotionComponent_X_y_avg_##width##_##height ();     \
  97 void MotionComponent_x_Y_avg_##width##_##height ();     \
  98 void MotionComponent_X_Y_avg_##width##_##height ();
  99
 100 __MotionComponents (16,16)       /* 444, 422, 420 */
 101 __MotionComponents (16,8)        /* 444, 422, 420 */
 102 __MotionComponents (8,8)         /* 422, 420 */
 103 __MotionComponents (8,4)         /* 420 */
 104 #if 0
 105 __MotionComponents (8,16)        /* 422 */
 106 #endif
 107
 108 #define ___callTheRightOne(width,height)                                     \
 109     if ((i_width == width) && (i_height == height))                          \
 110     {                                                                        \
 111         if (!b_average)                                                      \
 112         {                                                                    \
 113             switch (i_select)                                                \
 114             {                                                                \
 115             case 0:                                                          \
 116                 MotionComponent_x_y_copy_##width##_##height (p_src, p_dest,  \
 117                                                              i_stride);      \
 118                 break;                                                       \
 119             case 1:                                                          \
 120                 MotionComponent_X_y_copy_##width##_##height (p_src, p_dest,  \
 121                                                              i_stride);      \
 122                 break;                                                       \
 123             case 2:                                                          \
 124                 MotionComponent_x_Y_copy_##width##_##height (p_src, p_dest,  \
 125                                                              i_stride);      \
 126                 break;                                                       \
 127             case 3:                                                          \
 128                 MotionComponent_X_Y_copy_##width##_##height (p_src, p_dest,  \
 129                                                              i_stride);      \
 130                 break;                                                       \
 131             }                                                                \
 132         }                                                                    \
 133         else                                                                 \
 134         {                                                                    \
 135             switch (i_select)                                                \
 136             {                                                                \
 137             case 0:                                                          \
 138                 MotionComponent_x_y_avg_##width##_##height (p_src, p_dest,   \
 139                                                             i_stride);       \
 140                 break;                                                       \
 141             case 1:                                                          \
 142                 MotionComponent_X_y_avg_##width##_##height (p_src, p_dest,   \
 143                                                             i_stride);       \
 144                 break;                                                       \
 145             case 2:                                                          \
 146                 MotionComponent_x_Y_avg_##width##_##height (p_src, p_dest,   \
 147                                                             i_stride);       \
 148                 break;                                                       \
 149             case 3:                                                          \
 150                 MotionComponent_X_Y_avg_##width##_##height (p_src, p_dest,   \
 151                                                             i_stride);       \
 152                 break;                                                       \
 153             }                                                                \
 154         }                                                                    \
 155     }
 156
 157 /*****************************************************************************
 158  * vdec_MotionComponent : last stage of motion compensation
 159  *****************************************************************************/
 160 static __inline__ void MotionComponent(
 161                     yuv_data_t * p_src,     /* source block */
 162                     yuv_data_t * p_dest,    /* dest block */
 163                     int i_width,            /* (explicit) width of block */
 164                     int i_height,           /* (explicit) height of block */
 165                     int i_stride,           /* number of coeffs to jump
 166                                              * between each predicted line */
 167                     int i_select,           /* half-pel vectors */
 168                     boolean_t b_average     /* (explicit) averaging of several
 169                                              * predictions */ )
 170 {
 171     ___callTheRightOne (16,16)
 172     ___callTheRightOne (16,8)
 173     ___callTheRightOne (8,8)
 174     ___callTheRightOne (8,4)
 175 #if 0
 176     ___callTheRightOne (8,16)
 177 #endif
 178 }
 179
 180 /*****************************************************************************
 181  * Motion420 : motion compensation for a 4:2:0 macroblock
 182  *****************************************************************************/
 183 static __inline__ void Motion420(
 184                     macroblock_t * p_mb,        /* destination macroblock */
 185                     picture_t * p_source,       /* source picture */
 186                     boolean_t b_source_field,   /* source field */
 187                     boolean_t b_dest_field,     /* destination field */
 188                     int i_mv_x, int i_mv_y,     /* motion vector coordinates,
 189                                                  * in half pels */
 190                     int i_l_stride,             /* number of coeffs to jump to
 191                                                  * go to the next predicted
 192                                                  * line */
 193                     int i_c_stride,
 194                     int i_height,               /* height of the block to
 195                                                  * predict, in luminance
 196                                                  * (explicit) */
 197                     int i_offset,               /* position of the first
 198                                                  * predicted line (explicit) */
 199                     boolean_t b_average         /* (explicit) averaging of
 200                                                  * several predictions */ )
 201 {
 202     /* Temporary variables to avoid recalculating things twice */
 203     int     i_source_offset, i_dest_offset, i_c_height, i_c_select;
 204
 205     i_source_offset = (p_mb->i_l_x + (i_mv_x >> 1))
 206                        + (p_mb->i_motion_l_y + i_offset
 207                          + b_source_field)
 208                        * p_mb->p_picture->i_width
 209                        + (i_mv_y >> 1) * i_l_stride;
 210
 211     if( i_source_offset >= p_source->i_size )
 212     {
 213         intf_WarnMsg( 2, "Bad motion vector (lum)" );
 214         return;
 215     }
 216
 217     /* Luminance */
 218     MotionComponent( /* source */
 219                      p_source->p_y + i_source_offset,
 220                      /* destination */
 221                      p_mb->p_picture->p_y
 222                        + (p_mb->i_l_x)
 223                        + (p_mb->i_motion_l_y + b_dest_field + i_offset)
 224                          * p_mb->p_picture->i_width,
 225                      /* prediction width and height */
 226                      16, i_height,
 227                      /* stride */
 228                      i_l_stride,
 229                      /* select */
 230                      ((i_mv_y & 1) << 1) | (i_mv_x & 1),
 231                      b_average );
 232
 233     i_source_offset = (p_mb->i_c_x + ((i_mv_x/2) >> 1))
 234                         + (p_mb->i_motion_c_y + (i_offset >> 1)
 235                            + b_source_field)
 236                           * p_mb->p_picture->i_chroma_width
 237                         + ((i_mv_y/2) >> 1) * i_c_stride;
 238
 239     if( i_source_offset >= p_source->i_chroma_size )
 240     {
 241         intf_WarnMsg( 2, "Bad motion vector (chroma)" );
 242         return;
 243     }
 244
 245     i_dest_offset = (p_mb->i_c_x)
 246                       + (p_mb->i_motion_c_y + b_dest_field
 247                           + (i_offset >> 1))
 248                         * p_mb->p_picture->i_chroma_width;
 249     i_c_height = i_height >> 1;
 250     i_c_select = (((i_mv_y/2) & 1) << 1) | ((i_mv_x/2) & 1);
 251
 252     /* Chrominance Cr */
 253     MotionComponent( p_source->p_u
 254                        + i_source_offset,
 255                      p_mb->p_picture->p_u
 256                        + i_dest_offset,
 257                      8, i_c_height, i_c_stride,
 258                      i_c_select, b_average );
 259
 260     /* Chrominance Cb */
 261     MotionComponent( p_source->p_v
 262                        + i_source_offset,
 263                      p_mb->p_picture->p_v
 264                        + i_dest_offset,
 265                      8, i_c_height, i_c_stride,
 266                      i_c_select, b_average );
 267 }
 268
 269 /*****************************************************************************
 270  * Motion422 : motion compensation for a 4:2:2 macroblock
 271  *****************************************************************************/
 272 static __inline__ void Motion422(
 273                     macroblock_t * p_mb,        /* destination macroblock */
 274                     picture_t * p_source,       /* source picture */
 275                     boolean_t b_source_field,   /* source field */
 276                     boolean_t b_dest_field,     /* destination field */
 277                     int i_mv_x, int i_mv_y,     /* motion vector coordinates,
 278                                                  * in half pels */
 279                     int i_l_stride,             /* number of coeffs to jump to
 280                                                  * go to the next predicted
 281                                                  * line */
 282                     int i_c_stride,
 283                     int i_height,               /* height of the block to
 284                                                  * predict, in luminance
 285                                                  * (explicit) */
 286                     int i_offset,               /* position of the first
 287                                                  * predicted line (explicit) */
 288                     boolean_t b_average         /* (explicit) averaging of
 289                                                  * several predictions */ )
 290 {
 291 #if 0
 292     int     i_source_offset, i_dest_offset, i_c_select;
 293
 294     /* Luminance */
 295     MotionComponent( /* source */
 296                      p_source->p_y
 297                        + (p_mb->i_l_x + (i_mv_x >> 1))
 298                        + (p_mb->i_motion_l_y + i_offset
 299                           + b_source_field)
 300                        * p_mb->p_picture->i_width
 301                        + (i_mv_y >> 1) * p_mb->i_l_stride,
 302                      /* destination */
 303                      p_mb->p_picture->p_y
 304                        + (p_mb->i_l_x)
 305                        + (p_mb->i_motion_l_y + b_dest_field)
 306                          * p_mb->p_picture->i_width,
 307                      /* prediction width and height */
 308                      16, i_height,
 309                      /* stride */
 310                      i_l_stride,
 311                      /* select */
 312                      ((i_mv_y & 1) << 1) | (i_mv_x & 1),
 313                      b_average );
 314
 315     i_source_offset = (p_mb->i_c_x + ((i_mv_x/2) >> 1))
 316                         + (p_mb->i_motion_c_y + i_offset
 317                            + b_source_field)
 318                         * p_mb->p_picture->i_chroma_width
 319                         + (i_mv_y) >> 1) * p_mb->i_c_stride;
 320     i_dest_offset = (p_mb->i_c_x)
 321                       + (p_mb->i_motion_c_y + b_dest_field)
 322                         * p_mb->p_picture->i_chroma_width;
 323     i_c_select = ((i_mv_y & 1) << 1) | ((i_mv_x/2) & 1);
 324
 325     /* Chrominance Cr */
 326     MotionComponent( p_source->p_u
 327                        + i_source_offset,
 328                      p_mb->p_picture->p_u
 329                        + i_dest_offset,
 330                      8, i_height, i_c_stride,
 331                      i_c_select, b_average );
 332
 333     /* Chrominance Cb */
 334     MotionComponent( p_source->p_v
 335                        + i_source_offset,
 336                      p_mb->p_picture->p_u
 337                        + i_dest_offset,
 338                      8, i_height, i_c_stride,
 339                      i_c_select, b_average );
 340 #endif
 341 }
 342
 343 /*****************************************************************************
 344  * Motion444 : motion compensation for a 4:4:4 macroblock
 345  *****************************************************************************/
 346 static __inline__ void Motion444(
 347                     macroblock_t * p_mb,        /* destination macroblock */
 348                     picture_t * p_source,       /* source picture */
 349                     boolean_t b_source_field,   /* source field */
 350                     boolean_t b_dest_field,     /* destination field */
 351                     int i_mv_x, int i_mv_y,     /* motion vector coordinates,
 352                                                  * in half pels */
 353                     int i_l_stride,             /* number of coeffs to jump to
 354                                                  * go to the next predicted
 355                                                  * line */
 356                     int i_c_stride,
 357                     int i_height,               /* height of the block to
 358                                                  * predict, in luminance
 359                                                  * (explicit) */
 360                     int i_offset,               /* position of the first
 361                                                  * predicted line (explicit) */
 362                     boolean_t b_average         /* (explicit) averaging of
 363                                                  * several predictions */ )
 364 {
 365 #if 0
 366     int     i_source_offset, i_dest_offset, i_select;
 367
 368     i_source_offset = (p_mb->i_l_x + (i_mv_x >> 1))
 369                         + (p_mb->i_motion_l_y + i_offset
 370                            + b_source_field)
 371                         * p_mb->p_picture->i_width
 372                         + (i_mv_y >> 1) * p_mb->i_l_stride;
 373     i_dest_offset = (p_mb->i_l_x)
 374                       + (p_mb->i_motion_l_y + b_dest_field)
 375                         * p_mb->p_picture->i_width;
 376     i_select = ((i_mv_y & 1) << 1) | (i_mv_x & 1);
 377
 378
 379     /* Luminance */
 380     MotionComponent( p_source->p_y
 381                        + i_source_offset,
 382                      p_mb->p_picture->p_y
 383                        + i_dest_offset,
 384                      16, i_height, i_l_stride,
 385                      i_select, b_average );
 386
 387     /* Chrominance Cr */
 388     MotionComponent( p_source->p_u
 389                        + i_source_offset,
 390                      p_mb->p_picture->p_u
 391                        + i_dest_offset,
 392                      16, i_height, i_l_stride,
 393                      i_select, b_average );
 394
 395     /* Chrominance Cb */
 396     MotionComponent( p_source->p_v
 397                        + i_source_offset,
 398                      p_mb->p_picture->p_v
 399                        + i_dest_offset,
 400                      16, i_height, i_l_stride,
 401                      i_select, b_average );
 402 #endif
 403 }
 404
 405 /*****************************************************************************
 406  * vdec_MotionFieldField : motion compensation for field motion type (field)
 407  *****************************************************************************/
 408 #define FIELDFIELD( MOTION )                                            \
 409 {                                                                       \
 410     picture_t *     p_pred;                                             \
 411                                                                         \
 412     if( p_mb->i_mb_type & MB_MOTION_FORWARD )                           \
 413     {                                                                   \
 414         if( p_mb->b_P_second                                            \
 415              && (p_mb->b_motion_field != p_mb->ppi_field_select[0][0]) )\
 416             p_pred = p_mb->p_picture;                                   \
 417         else                                                            \
 418             p_pred = p_mb->p_forward;                                   \
 419                                                                         \
 420         MOTION( p_mb, p_pred, p_mb->ppi_field_select[0][0],             \
 421                 p_mb->b_motion_field,                                   \
 422                 p_mb->pppi_motion_vectors[0][0][0],                     \
 423                 p_mb->pppi_motion_vectors[0][0][1],                     \
 424                 p_mb->i_l_stride, p_mb->i_c_stride, 16, 0, 0 );         \
 425                                                                         \
 426         if( p_mb->i_mb_type & MB_MOTION_BACKWARD )                      \
 427         {                                                               \
 428             MOTION( p_mb, p_mb->p_backward,                             \
 429                     p_mb->ppi_field_select[0][1],                       \
 430                     p_mb->b_motion_field,                               \
 431                     p_mb->pppi_motion_vectors[0][1][0],                 \
 432                     p_mb->pppi_motion_vectors[0][1][1],                 \
 433                     p_mb->i_l_stride, p_mb->i_c_stride, 16, 0, 1 );     \
 434         }                                                               \
 435     }                                                                   \
 436                                                                         \
 437     else /* MB_MOTION_BACKWARD */                                       \
 438     {                                                                   \
 439         MOTION( p_mb, p_mb->p_backward, p_mb->ppi_field_select[0][1],   \
 440                 p_mb->b_motion_field,                                   \
 441                 p_mb->pppi_motion_vectors[0][1][0],                     \
 442                 p_mb->pppi_motion_vectors[0][1][1],                     \
 443                 p_mb->i_l_stride, p_mb->i_c_stride, 16, 0, 0 );         \
 444     }                                                                   \
 445 }
 446
 447 static void vdec_MotionFieldField420( macroblock_t * p_mb )
 448 {
 449     FIELDFIELD( Motion420 )
 450 }
 451
 452 static void vdec_MotionFieldField422( macroblock_t * p_mb )
 453 {
 454     //FIELDFIELD( Motion422 )
 455 }
 456
 457 static void vdec_MotionFieldField444( macroblock_t * p_mb )
 458 {
 459     //FIELDFIELD( Motion444 )
 460 }
 461
 462 /*****************************************************************************
 463  * vdec_MotionField16x8XXX: motion compensation for 16x8 motion type (field)
 464  *****************************************************************************/
 465 #define FIELD16X8( MOTION )                                             \
 466 {                                                                       \
 467     picture_t *     p_pred;                                             \
 468                                                                         \
 469     if( p_mb->i_mb_type & MB_MOTION_FORWARD )                           \
 470     {                                                                   \
 471         if( p_mb->b_P_second                                            \
 472              && (p_mb->b_motion_field != p_mb->ppi_field_select[0][0]) )\
 473             p_pred = p_mb->p_picture;                                   \
 474         else                                                            \
 475             p_pred = p_mb->p_forward;                                   \
 476                                                                         \
 477         MOTION( p_mb, p_pred, p_mb->ppi_field_select[0][0],             \
 478                 p_mb->b_motion_field,                                   \
 479                 p_mb->pppi_motion_vectors[0][0][0],                     \
 480                 p_mb->pppi_motion_vectors[0][0][1],                     \
 481                 p_mb->i_l_stride, p_mb->i_c_stride, 8, 0, 0 );          \
 482                                                                         \
 483         if( p_mb->b_P_second                                            \
 484              && (p_mb->b_motion_field != p_mb->ppi_field_select[1][0]) )\
 485             p_pred = p_mb->p_picture;                                   \
 486         else                                                            \
 487             p_pred = p_mb->p_forward;                                   \
 488                                                                         \
 489         MOTION( p_mb, p_pred, p_mb->ppi_field_select[1][0],             \
 490                 p_mb->b_motion_field,                                   \
 491                 p_mb->pppi_motion_vectors[1][0][0],                     \
 492                 p_mb->pppi_motion_vectors[1][0][1],                     \
 493                 p_mb->i_l_stride, p_mb->i_c_stride, 8, 8, 0 );          \
 494                                                                         \
 495         if( p_mb->i_mb_type & MB_MOTION_BACKWARD )                      \
 496         {                                                               \
 497             MOTION( p_mb, p_mb->p_backward,                             \
 498                     p_mb->ppi_field_select[0][1],                       \
 499                     p_mb->b_motion_field,                               \
 500                     p_mb->pppi_motion_vectors[0][1][0],                 \
 501                     p_mb->pppi_motion_vectors[0][1][1],                 \
 502                     p_mb->i_l_stride, p_mb->i_c_stride, 8, 0, 1 );      \
 503                                                                         \
 504             MOTION( p_mb, p_mb->p_backward,                             \
 505                     p_mb->ppi_field_select[1][1],                       \
 506                     p_mb->b_motion_field,                               \
 507                     p_mb->pppi_motion_vectors[1][1][0],                 \
 508                     p_mb->pppi_motion_vectors[1][1][1],                 \
 509                     p_mb->i_l_stride, p_mb->i_c_stride, 8, 8, 1 );      \
 510         }                                                               \
 511     }                                                                   \
 512                                                                         \
 513     else /* MB_MOTION_BACKWARD */                                       \
 514     {                                                                   \
 515         MOTION( p_mb, p_mb->p_backward, p_mb->ppi_field_select[0][1],   \
 516                 p_mb->b_motion_field,                                   \
 517                 p_mb->pppi_motion_vectors[0][1][0],                     \
 518                 p_mb->pppi_motion_vectors[0][1][1],                     \
 519                 p_mb->i_l_stride, p_mb->i_c_stride, 8, 0, 0 );          \
 520                                                                         \
 521         MOTION( p_mb, p_mb->p_backward, p_mb->ppi_field_select[1][1],   \
 522                 p_mb->b_motion_field,                                   \
 523                 p_mb->pppi_motion_vectors[1][1][0],                     \
 524                 p_mb->pppi_motion_vectors[1][1][1],                     \
 525                 p_mb->i_l_stride, p_mb->i_c_stride, 8, 8, 0 );          \
 526     }                                                                   \
 527 }
 528
 529 static void vdec_MotionField16x8420( macroblock_t * p_mb )
 530 {
 531     FIELD16X8( Motion420 )
 532 }
 533
 534 static void vdec_MotionField16x8422( macroblock_t * p_mb )
 535 {
 536     //FIELD16X8( Motion422 )
 537 }
 538
 539 static void vdec_MotionField16x8444( macroblock_t * p_mb )
 540 {
 541     //FIELD16X8( Motion444 )
 542 }
 543
 544 /*****************************************************************************
 545  * vdec_MotionFieldDMVXXX : motion compensation for dmv motion type (field)
 546  *****************************************************************************/
 547 #define FIELDDMV( MOTION )                                              \
 548 {                                                                       \
 549     /* This is necessarily a MOTION_FORWARD only macroblock, in a P     \
 550      * picture. */                                                      \
 551     picture_t *     p_pred;                                             \
 552                                                                         \
 553     /* predict from field of same parity */                             \
 554     MOTION( p_mb, p_mb->p_forward,                                      \
 555             p_mb->b_motion_field, p_mb->b_motion_field,                 \
 556             p_mb->pppi_motion_vectors[0][0][0],                         \
 557             p_mb->pppi_motion_vectors[0][0][1],                         \
 558             p_mb->i_l_stride, p_mb->i_c_stride, 16, 0, 0 );             \
 559                                                                         \
 560     if( p_mb->b_P_second )                                              \
 561         p_pred = p_mb->p_picture;                                       \
 562     else                                                                \
 563         p_pred = p_mb->p_forward;                                       \
 564                                                                         \
 565     /* predict from field of opposite parity */                         \
 566     MOTION( p_mb, p_pred, !p_mb->b_motion_field, p_mb->b_motion_field,  \
 567             p_mb->ppi_dmv[0][0], p_mb->ppi_dmv[0][1],                   \
 568             p_mb->i_l_stride, p_mb->i_c_stride, 16, 0, 1 );             \
 569 } /* FIELDDMV */
 570
 571 static void vdec_MotionFieldDMV420( macroblock_t * p_mb )
 572 {
 573     FIELDDMV( Motion420 )
 574 }
 575
 576 static void vdec_MotionFieldDMV422( macroblock_t * p_mb )
 577 {
 578     //FIELDDMV( Motion422 )
 579 }
 580
 581 static void vdec_MotionFieldDMV444( macroblock_t * p_mb )
 582 {
 583     //FIELDDMV( Motion444 )
 584 }
 585
 586 /*****************************************************************************
 587  * vdec_MotionFrameFrameXXX?? : motion compensation for frame motion type (frame)
 588  *****************************************************************************/
 589 #define FRAMEFRAME( MOTION )                                            \
 590 {                                                                       \
 591     if( p_mb->i_mb_type & MB_MOTION_FORWARD )                           \
 592     {                                                                   \
 593         MOTION( p_mb, p_mb->p_forward, 0, 0,                            \
 594                 p_mb->pppi_motion_vectors[0][0][0],                     \
 595                 p_mb->pppi_motion_vectors[0][0][1],                     \
 596                 p_mb->i_l_stride, p_mb->i_c_stride, 16, 0, 0 );         \
 597                                                                         \
 598         if( p_mb->i_mb_type & MB_MOTION_BACKWARD )                      \
 599         {                                                               \
 600             MOTION( p_mb, p_mb->p_backward, 0, 0,                       \
 601                     p_mb->pppi_motion_vectors[0][1][0],                 \
 602                     p_mb->pppi_motion_vectors[0][1][1],                 \
 603                     p_mb->i_l_stride, p_mb->i_c_stride, 16, 0, 1 );     \
 604         }                                                               \
 605     }                                                                   \
 606                                                                         \
 607     else /* MB_MOTION_BACKWARD */                                       \
 608     {                                                                   \
 609         MOTION( p_mb, p_mb->p_backward, 0, 0,                           \
 610                 p_mb->pppi_motion_vectors[0][1][0],                     \
 611                 p_mb->pppi_motion_vectors[0][1][1],                     \
 612                 p_mb->i_l_stride, p_mb->i_c_stride, 16, 0, 0 );         \
 613     }                                                                   \
 614 } /* FRAMEFRAME */
 615
 616 static void vdec_MotionFrameFrame420( macroblock_t * p_mb )
 617 {
 618     FRAMEFRAME( Motion420 )
 619 }
 620
 621 static void vdec_MotionFrameFrame422( macroblock_t * p_mb )
 622 {
 623     //FRAMEFRAME( Motion422 )
 624 }
 625
 626 static void vdec_MotionFrameFrame444( macroblock_t * p_mb )
 627 {
 628     //FRAMEFRAME( Motion444 )
 629 }
 630
 631 /*****************************************************************************
 632  * vdec_MotionFrameFieldXXX?? : motion compensation for field motion type (frame)
 633  *****************************************************************************/
 634 #define FRAMEFIELD( MOTION )                                            \
 635 {                                                                       \
 636     int i_l_stride = p_mb->i_l_stride << 1;                             \
 637     int i_c_stride = p_mb->i_c_stride << 1;                             \
 638                                                                         \
 639     if( p_mb->i_mb_type & MB_MOTION_FORWARD )                           \
 640     {                                                                   \
 641         MOTION( p_mb, p_mb->p_forward, p_mb->ppi_field_select[0][0], 0, \
 642                 p_mb->pppi_motion_vectors[0][0][0],                     \
 643                 p_mb->pppi_motion_vectors[0][0][1] >> 1,                \
 644                 i_l_stride, i_c_stride, 8, 0, 0 );                      \
 645                                                                         \
 646         MOTION( p_mb, p_mb->p_forward, p_mb->ppi_field_select[1][0], 1, \
 647                 p_mb->pppi_motion_vectors[1][0][0],                     \
 648                 p_mb->pppi_motion_vectors[1][0][1] >> 1,                \
 649                 i_l_stride, i_c_stride, 8, 0, 0 );                      \
 650                                                                         \
 651         if( p_mb->i_mb_type & MB_MOTION_BACKWARD )                      \
 652         {                                                               \
 653             MOTION( p_mb, p_mb->p_backward,                             \
 654                     p_mb->ppi_field_select[0][1], 0,                    \
 655                     p_mb->pppi_motion_vectors[0][1][0],                 \
 656                     p_mb->pppi_motion_vectors[0][1][1] >> 1,            \
 657                     i_l_stride, i_c_stride, 8, 0, 1 );                  \
 658                                                                         \
 659             MOTION( p_mb, p_mb->p_backward,                             \
 660                     p_mb->ppi_field_select[1][1], 1,                    \
 661                     p_mb->pppi_motion_vectors[1][1][0],                 \
 662                     p_mb->pppi_motion_vectors[1][1][1] >> 1,            \
 663                     i_l_stride, i_c_stride, 8, 0, 1 );                  \
 664         }                                                               \
 665     }                                                                   \
 666                                                                         \
 667     else /* MB_MOTION_BACKWARD only */                                  \
 668     {                                                                   \
 669         MOTION( p_mb, p_mb->p_backward, p_mb->ppi_field_select[0][1], 0,\
 670                 p_mb->pppi_motion_vectors[0][1][0],                     \
 671                 p_mb->pppi_motion_vectors[0][1][1] >> 1,                \
 672                 i_l_stride, i_c_stride, 8, 0, 0 );                      \
 673                                                                         \
 674         MOTION( p_mb, p_mb->p_backward, p_mb->ppi_field_select[1][1], 1,\
 675                 p_mb->pppi_motion_vectors[1][1][0],                     \
 676                 p_mb->pppi_motion_vectors[1][1][1] >> 1,                \
 677                 i_l_stride, i_c_stride, 8, 0, 0 );                      \
 678     }                                                                   \
 679 } /* FRAMEFIELD */
 680
 681 static void vdec_MotionFrameField420( macroblock_t * p_mb )
 682 {
 683     FRAMEFIELD( Motion420 )
 684 }
 685
 686 static void vdec_MotionFrameField422( macroblock_t * p_mb )
 687 {
 688     //FRAMEFIELD( Motion422 )
 689 }
 690
 691 static void vdec_MotionFrameField444( macroblock_t * p_mb )
 692 {
 693     //FRAMEFIELD( Motion444 )
 694 }
 695
 696 /*****************************************************************************
 697  * vdec_MotionFrameDMVXXX?? : motion compensation for dmv motion type (frame)
 698  *****************************************************************************/
 699 #define FRAMEDMV( MOTION )                                              \
 700 {                                                                       \
 701     /* This is necessarily a MOTION_FORWARD only macroblock, in a P     \
 702      * picture. */                                                      \
 703                                                                         \
 704     /* predict top field from top field */                              \
 705     MOTION( p_mb, p_mb->p_forward, 0, 0,                                \
 706             p_mb->pppi_motion_vectors[0][0][0],                         \
 707             p_mb->pppi_motion_vectors[0][0][1],                         \
 708             /* XXX?? XXX?? >> 1 ? */                                    \
 709             p_mb->i_l_stride << 1, p_mb->i_c_stride << 1, 8, 0, 0 );    \
 710                                                                         \
 711     /* predict and add to top field from bottom field */                \
 712     MOTION( p_mb, p_mb->p_forward, 1, 0,                                \
 713             p_mb->ppi_dmv[0][0], p_mb->ppi_dmv[0][1],                   \
 714             p_mb->i_l_stride << 1, p_mb->i_c_stride << 1, 8, 0, 1 );    \
 715                                                                         \
 716     /* predict bottom field from bottom field */                        \
 717     MOTION( p_mb, p_mb->p_forward, 1, 1,                                \
 718             p_mb->pppi_motion_vectors[0][0][0],                         \
 719             p_mb->pppi_motion_vectors[0][0][1],                         \
 720             /* XXX?? XXX?? >> 1 ? */                                    \
 721             p_mb->i_l_stride << 1, p_mb->i_c_stride << 1, 8, 0, 0 );    \
 722                                                                         \
 723     /* predict and add to bottom field from top field */                \
 724     MOTION( p_mb, p_mb->p_forward, 1, 0,                                \
 725             p_mb->ppi_dmv[1][0], p_mb->ppi_dmv[1][1],                   \
 726             p_mb->i_l_stride << 1, p_mb->i_c_stride << 1, 8, 0, 1 );    \
 727 } /* FRAMEDMV */
 728
 729 static void vdec_MotionFrameDMV420( macroblock_t * p_mb )
 730 {
 731     FRAMEDMV( Motion420 )
 732 }
 733
 734 static void vdec_MotionFrameDMV422( macroblock_t * p_mb )
 735 {
 736     //FRAMEDMV( Motion422 )
 737 }
 738
 739 static void vdec_MotionFrameDMV444( macroblock_t * p_mb )
 740 {
 741     //FRAMEDMV( Motion444 )
 742 }
 743