memalloc.c

H.264编码实现

/*!
 ************************************************************************
 * \file  memalloc.c
 *
 * \brief
 *    Memory allocation and free helper functions
 *
 * \author
 *    Main contributors (see contributors.h for copyright, address and affiliation details)
 ************************************************************************
 */

#include "memalloc.h"


/*!
 ************************************************************************
 * \brief
 *    Allocate 2D memory array -> imgpel array2D[rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************/
int get_mem2Dpel(imgpel ***array2D, int dim0, int dim1)
{
  int i;

  if((*array2D    = (imgpel**)calloc(dim0,       sizeof(imgpel*))) == NULL)
    no_mem_exit("get_mem2Dpel: array2D");
  if((*(*array2D) = (imgpel* )calloc(dim0 * dim1,sizeof(imgpel ))) == NULL)
    no_mem_exit("get_mem2Dpel: array2D");

  for(i = 1 ; i < dim0; i++)
    (*array2D)[i] =  (*array2D)[i-1] + dim1;

  return dim0 * dim1 * sizeof(imgpel);
}


/*!
 ************************************************************************
 * \brief
 *    Allocate 3D memory array -> imgpel array3D[frames][rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem3Dpel(imgpel ****array3D, int dim0, int dim1, int dim2)
{
  int i;

  if(((*array3D) = (imgpel***)calloc(dim0,sizeof(imgpel**))) == NULL)
    no_mem_exit("get_mem3Dpel: array3D");

  get_mem2Dpel(*array3D, dim0 * dim1, dim2);

  for(i = 1; i < dim0; i++)
    (*array3D)[i] = (*array3D)[i - 1] + dim1;
  
  return dim0 * dim1 * dim2 * sizeof(imgpel);
}
/*!
 ************************************************************************
 * \brief
 *    Allocate 4D memory array -> imgpel array4D[sub_x][sub_y][rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem4Dpel(imgpel *****array4D, int dim0, int dim1, int dim2, int dim3)
{  
  int  i;

  if(((*array4D) = (imgpel****)calloc(dim0, sizeof(imgpel***))) == NULL)
    no_mem_exit("get_mem4Dpel: array4D");

  get_mem3Dpel(*array4D, dim0 * dim1, dim2, dim3);

  for(i = 1; i < dim0; i++)
    (*array4D)[i] = (*array4D)[i - 1] + dim1;

  return dim0 * dim1 * dim2 * dim3 * sizeof(imgpel);
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 5D memory array -> imgpel array5D[dims][sub_x][sub_y][rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem5Dpel(imgpel ******array5D, int dim0, int dim1, int dim2, int dim3, int dim4)
{
  int  i;

  if(((*array5D) = (imgpel*****)calloc(dim0, sizeof(imgpel****))) == NULL)
    no_mem_exit("get_mem5Dpel: array5D");

  get_mem4Dpel(*array5D, dim0 * dim1, dim2, dim3, dim4);

  for(i = 1; i < dim0; i++)
    (*array5D)[i] = (*array5D)[i - 1] + dim1;

  return dim0 * dim1 * dim2 * dim3 * dim4 * sizeof(imgpel);
}

/*!
 ************************************************************************
 * \brief
 *    free 2D memory array
 *    which was allocated with get_mem2Dpel()
 ************************************************************************
 */
void free_mem2Dpel(imgpel **array2D)
{
  if (array2D)
  {
    if (*array2D)
      free (*array2D);
    else error ("free_mem2Dpel: trying to free unused memory",100);

    free (array2D);
  } 
  else
  {
    error ("free_mem2Dpel: trying to free unused memory",100);
  }
}


/*!
 ************************************************************************
 * \brief
 *    free 3D memory array
 *    which was allocated with get_mem3Dpel()
 ************************************************************************
 */
void free_mem3Dpel(imgpel ***array3D)
{
  if (array3D)
  {
    free_mem2Dpel(*array3D);
    free (array3D);
  }
  else
  {
    error ("free_mem3Dpel: trying to free unused memory",100);
  }
}
/*!
 ************************************************************************
 * \brief
 *    free 4D memory array
 *    which was allocated with get_mem4Dpel()
 ************************************************************************
 */
void free_mem4Dpel(imgpel ****array4D)
{
  if (array4D)
  {
    free_mem3Dpel(*array4D);
    free (array4D);
  }
  else
  {
    error ("free_mem4Dpel: trying to free unused memory",100);
  }
}
/*!
 ************************************************************************
 * \brief
 *    free 5D memory array
 *    which was allocated with get_mem5Dpel()
 ************************************************************************
 */
void free_mem5Dpel(imgpel *****array5D)
{
  if (array5D)
  {
    free_mem4Dpel(*array5D);
    free (array5D);
  }
  else
  {
    error ("free_mem5Dpel: trying to free unused memory",100);
  }
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 2D memory array -> unsigned char array2D[rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************/
int get_mem2D(byte ***array2D, int dim0, int dim1)
{
  int i;

  if((  *array2D  = (byte**)calloc(dim0,       sizeof(byte*))) == NULL)
    no_mem_exit("get_mem2D: array2D");
  if((*(*array2D) = (byte* )calloc(dim0 * dim1,sizeof(byte ))) == NULL)
    no_mem_exit("get_mem2D: array2D");

  for(i = 1; i < dim0; i++)
    (*array2D)[i] = (*array2D)[i-1] + dim1;

  return dim0 * dim1;
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 2D memory array -> int array2D[rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem2Dint(int ***array2D, int dim0, int dim1)
{
  int i;

  if((*array2D    = (int**)calloc(dim0,        sizeof(int*))) == NULL)
    no_mem_exit("get_mem2Dint: array2D");
  if((*(*array2D) = (int* )calloc(dim0 * dim1, sizeof(int ))) == NULL)
    no_mem_exit("get_mem2Dint: array2D");

  for(i = 1 ; i < dim0; i++)
    (*array2D)[i] =  (*array2D)[i-1] + dim1;

  return dim0 * dim1 * sizeof(int);
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 2D memory array -> int64 array2D[rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem2Dint64(int64 ***array2D, int dim0, int dim1)
{
  int i;

  if((*array2D    = (int64**)calloc(dim0,       sizeof(int64*))) == NULL)
    no_mem_exit("get_mem2Dint64: array2D");
  if((*(*array2D) = (int64* )calloc(dim0 * dim1,sizeof(int64 ))) == NULL)
    no_mem_exit("get_mem2Dint64: array2D");

  for(i = 1; i < dim0; i++)
    (*array2D)[i] =  (*array2D)[i-1] + dim1;

  return dim0 * dim1 * sizeof(int64);
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 3D memory array -> unsigned char array3D[frames][rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem3D(byte ****array3D, int dim0, int dim1, int dim2)
{
  int  i;

  if(((*array3D) = (byte***)calloc(dim0,sizeof(byte**))) == NULL)
    no_mem_exit("get_mem3D: array3D");

  get_mem2D(*array3D, dim0 * dim1, dim2);

  for(i = 1; i < dim0; i++)
    (*array3D)[i] =  (*array3D)[i-1] + dim1;

  return dim0 * dim1 * dim2;
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 3D memory array -> int array3D[frames][rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem3Dint(int ****array3D, int dim0, int dim1, int dim2)
{
  int  i;

  if(((*array3D) = (int***)calloc(dim0, sizeof(int**))) == NULL)
    no_mem_exit("get_mem3Dint: array3D");

  get_mem2Dint(*array3D, dim0 * dim1, dim2);

  for(i = 1; i < dim0; i++)
    (*array3D)[i] =  (*array3D)[i-1] + dim1;

  return dim0 * dim1 * dim2 * sizeof(int);
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 3D memory array -> int64 array3D[frames][rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem3Dint64(int64 ****array3D, int dim0, int dim1, int dim2)
{
  int  i;

  if(((*array3D) = (int64***)calloc(dim0, sizeof(int64**))) == NULL)
    no_mem_exit("get_mem3Dint64: array3D");

  get_mem2Dint64(*array3D, dim0 * dim1, dim2);

  for(i = 1; i < dim0; i++)
    (*array3D)[i] =  (*array3D)[i-1] + dim1;

  return dim0 * dim1 * dim2 * sizeof(int64);
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 4D memory array -> int array4D[frames][rows][columns][component]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem4Dint(int *****array4D, int dim0, int dim1, int dim2, int dim3)
{
  int  i;

  if(((*array4D) = (int****)calloc(dim0, sizeof(int***))) == NULL)
    no_mem_exit("get_mem4Dint: array4D");

  get_mem3Dint(*array4D, dim0 * dim1, dim2, dim3);

  for(i = 1; i < dim0; i++)
    (*array4D)[i] =  (*array4D)[i-1] + dim1;

  return dim0 * dim1 * dim2 * dim3 * sizeof(int);
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 5D memory array -> int array5D[refs][blocktype][rows][columns][component]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem5Dint(int ******array5D, int dim0, int dim1, int dim2, int dim3, int dim4)
{
  int  i;

  if(((*array5D) = (int*****)calloc(dim0, sizeof(int****))) == NULL)
    no_mem_exit("get_mem5Dint: array5D");

  get_mem4Dint(*array5D, dim0 * dim1, dim2, dim3, dim4);

  for(i = 1; i < dim0; i++)
    (*array5D)[i] =  (*array5D)[i-1] + dim1;

  return dim0 * dim1 * dim2 * dim3 * dim4 * sizeof(int);
}


/*!
 ************************************************************************
 * \brief
 *    free 2D memory array
 *    which was allocated with get_mem2D()
 ************************************************************************
 */
void free_mem2D(byte **array2D)
{
  if (array2D)
  {
    if (*array2D)
      free (*array2D);
    else 
      error ("free_mem2D: trying to free unused memory",100);

    free (array2D);
  } 
  else
  {
    error ("free_mem2D: trying to free unused memory",100);
  }
}

/*!
 ************************************************************************
 * \brief
 *    free 2D memory array