me.cpp

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/*//////////////////////////////////////////////////////////////////////////////
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//          Copyright(c) 2002-2005 Intel Corporation. All Rights Reserved.
//
*/

#include <limits.h>
#include "mpeg2_defs.h"

#define SAD_FUNC_16x16 \
  ippiSAD16x16_8u32s(pBlock,     \
                     BlockStep,  \
                     ref_data,   \
                     RefStep,    \
                     &MAD,       \
                     flag)

#define SAD_FUNC_16x8 \
  ippiSAD16x8_8u32s_C1R(pBlock,      \
                        BlockStep,   \
                        ref_data,    \
                        RefStep,     \
                        &MAD,        \
                        flag)

#define VARMEAN_FUNC_16x16                  \
  ippiVarMeanDiff16x16_8u32s_C1R(           \
                          pBlock,           \
                          BlockStep,        \
                          ref_data,         \
                          RefStep,          \
                          pSrcMean,         \
                          Var[!min_index],  \
                          Mean[!min_index], \
                          flag);            \
  MAD = Var[!min_index][0] + Var[!min_index][1] + \
        Var[!min_index][2] + Var[!min_index][3]

#define VARMEAN_FUNC_16x8                   \
  ippiVarMeanDiff16x8_8u32s_C1R(            \
                          pBlock,           \
                          BlockStep,        \
                          ref_data,         \
                          RefStep,          \
                          pSrcMean,         \
                          Var[!min_index],  \
                          Mean[!min_index], \
                          flag);            \
  MAD = Var[!min_index][0] + Var[!min_index][1]

/***********************************************************/

#define ME_FUNC     MotionEstimation_Frame
#define FIELD_FLAG  0
#define ME_STEP_X   2
#define ME_STEP_Y   2
#define ME_MIN_STEP 2
#define NUM_BLOCKS  4

#define TRY_POSITION(FUNC)                                   \
if (me_matrix[YN*me_matrix_w + XN] != me_matrix_id)          \
{                                                            \
  me_matrix[YN*me_matrix_w + XN] = me_matrix_id;             \
  ref_data = (Ipp8u*)(pRef + (XN >> 1) + (YN >> 1)*RefStep); \
  flag = ((XN & 1) << 3) | ((YN & 1) << 2);                  \
                                                             \
  FUNC##_16x16;                                              \
                                                             \
  if(MAD < BestMAD)                                          \
  {                                                          \
    min_point = 1;                                           \
    BestMAD = MAD;                                           \
    min_index = !min_index;                                  \
    XMIN = XN;                                               \
    YMIN = YN;                                               \
  }                                                          \
}

#include "me.h"

/***********************************************************/

#undef  ME_FUNC
#define ME_FUNC  MotionEstimation_FieldPict

#undef  NUM_BLOCKS
#define NUM_BLOCKS  2

#undef  TRY_POSITION
#define TRY_POSITION(FUNC) \
if (me_matrix[YN*me_matrix_w + XN] != me_matrix_id)          \
{                                                            \
  me_matrix[YN*me_matrix_w + XN] = me_matrix_id;             \
  ref_data = (Ipp8u*)(pRef + (XN >> 1) + (YN >> 1)*RefStep); \
  flag = ((XN & 1) << 3) | ((YN & 1) << 2);                  \
                                                             \
  FUNC##_16x8;                                               \
                                                             \
  MAD = Var[!min_index][0] + Var[!min_index][1];             \
  if(MAD < BestMAD)                                          \
  {                                                          \
      min_point = 1;                                         \
      BestMAD = MAD;                                         \
      min_index = !min_index;                                \
      XMIN = XN;                                             \
      YMIN = YN;                                             \
  }                                                          \
}

#include "me.h"

/***********************************************************/

#undef  ME_FUNC
#define ME_FUNC  MotionEstimation_Field

#undef  FIELD_FLAG
#define FIELD_FLAG  1

#undef  NUM_BLOCKS
#define NUM_BLOCKS  2

#undef  TRY_POSITION
#define TRY_POSITION(FUNC) \
if (me_matrix[YN*me_matrix_w + XN] != me_matrix_id)          \
{                                                            \
  me_matrix[YN*me_matrix_w + XN] = me_matrix_id;             \
  ref_data = (Ipp8u*)(pRef + (XN >> 1) + (YN >> 1)*RefStep); \
  flag = ((XN & 1) << 3) | ((YN & 1) << 2);                  \
                                                             \
  /* top field */                                            \
  FUNC##_16x8;                                               \
                                                             \
  MAD = Var[!min_index][0] + Var[!min_index][1];             \
  if(MAD < BestMAD)                                          \
  {                                                          \
    min_point = 1;                                           \
    field_select = 0;                                        \
    BestMAD = MAD;                                           \
    min_index = !min_index;                                  \
    XMIN = XN;                                               \
    YMIN = YN;                                               \
  }                                                          \
                                                             \
  /* bottom field */                                         \
  ref_data += (RefStep >> 1);                                \
  FUNC##_16x8;                                               \
                                                             \
  MAD = Var[!min_index][0] + Var[!min_index][1];             \
  if(MAD < BestMAD)                                          \
  {                                                          \
    min_point = 1;                                           \
    field_select = 1;                                        \
    BestMAD = MAD;                                           \
    min_index = !min_index;                                  \
    XMIN = XN;                                               \
    YMIN = YN;                                               \
  }                                                          \
}

#include "me.h"