default memory allocator for libavutil More...

#include "config.h"
#include <limits.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "avassert.h"
#include "avutil.h"
#include "common.h"
#include "dynarray.h"
#include "intreadwrite.h"
#include "mem.h"

Macros
#define	_XOPEN_SOURCE 600

#define	ALIGN (HAVE_AVX ? 32 : 16)

Functions
void	av_max_alloc (size_t max)
	Set the maximum size that may me allocated in one block.

void *	av_malloc (size_t size)
	Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if available on the CPU).

void *	av_realloc (void *ptr, size_t size)
	Allocate or reallocate a block of memory.

void *	av_realloc_f (void *ptr, size_t nelem, size_t elsize)
	Allocate or reallocate a block of memory.

int	av_reallocp (void *ptr, size_t size)
	Allocate or reallocate a block of memory.

void *	av_realloc_array (void *ptr, size_t nmemb, size_t size)

int	av_reallocp_array (void *ptr, size_t nmemb, size_t size)

void	av_free (void *ptr)
	Free a memory block which has been allocated with av_malloc(z)() or av_realloc().

void	av_freep (void *arg)
	Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer pointing to it to NULL.

void *	av_mallocz (size_t size)
	Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if available on the CPU) and zero all the bytes of the block.

void *	av_calloc (size_t nmemb, size_t size)
	Allocate a block of nmemb * size bytes with alignment suitable for all memory accesses (including vectors if available on the CPU) and zero all the bytes of the block.

char *	av_strdup (const char *s)
	Duplicate the string s.

char *	av_strndup (const char *s, size_t len)
	Duplicate a substring of the string s.

void *	av_memdup (const void *p, size_t size)
	Duplicate the buffer p.

int	av_dynarray_add_nofree (void tab_ptr, int nb_ptr, void *elem)
	Add an element to a dynamic array.

void	av_dynarray_add (void tab_ptr, int nb_ptr, void *elem)
	Add an element to a dynamic array.

void *	av_dynarray2_add (void *tab_ptr, int nb_ptr, size_t elem_size, const uint8_t *elem_data)
	Add an element of size elem_size to a dynamic array.

static void	fill16 (uint8_t *dst, int len)

static void	fill24 (uint8_t *dst, int len)

static void	fill32 (uint8_t *dst, int len)

void	av_memcpy_backptr (uint8_t *dst, int back, int cnt)
	deliberately overlapping memcpy implementation

void *	av_fast_realloc (void ptr, unsigned int size, size_t min_size)
	Reallocate the given block if it is not large enough, otherwise do nothing.

static int	ff_fast_malloc (void ptr, unsigned int size, size_t min_size, int zero_realloc)

void	av_fast_malloc (void ptr, unsigned int size, size_t min_size)
	Allocate a buffer, reusing the given one if large enough.