mem.c

mpeg4 video codec mpeg4 video codec

/*
 * default memory allocator for libavcodec
 * Copyright (c) 2002 Fabrice Bellard.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
/**
 * @file mem.c
 * default memory allocator for libavcodec.
 */
 
#include "avcodec.h"

/* here we can use OS dependant allocation functions */
#undef malloc
#undef free
#undef realloc

#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif

/* you can redefine av_malloc and av_free in your project to use your
   memory allocator. You do not need to suppress this file because the
   linker will do it automatically */

#ifdef __GNUC__
#define _aligned_malloc __mingw_aligned_malloc
#define _aligned_realloc __mingw_aligned_realloc
#define _aligned_free __mingw_aligned_free
#endif

void* av_malloc(unsigned int size)
{
 return _aligned_malloc(size,16);
}

void* av_realloc(void *ptr, unsigned int size)
{
 if (!ptr)
  return av_malloc(size);
 else
  if (size==0)
   {
    av_free(ptr);
    return NULL;
   }
  else
   return _aligned_realloc(ptr,size,16);
}

void av_free(void *ptr)
{
 _aligned_free(ptr);
}