*/
/**
- * @file mem.h
- * Memory handling functions.
+ * @file
+ * memory handling functions
*/
-#ifndef FFMPEG_MEM_H
-#define FFMPEG_MEM_H
+#ifndef AVUTIL_MEM_H
+#define AVUTIL_MEM_H
-#ifdef __GNUC__
- #define DECLARE_ALIGNED(n,t,v) t v __attribute__ ((aligned (n)))
- #define DECLARE_ASM_CONST(n,t,v) static const t v attribute_used __attribute__ ((aligned (n)))
+#include "attributes.h"
+#include "avutil.h"
+
+#if defined(__ICC) && _ICC < 1200 || defined(__SUNPRO_C)
+ #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
+ #define DECLARE_ASM_CONST(n,t,v) const t __attribute__ ((aligned (n))) v
+#elif defined(__TI_COMPILER_VERSION__)
+ #define DECLARE_ALIGNED(n,t,v) \
+ AV_PRAGMA(DATA_ALIGN(v,n)) \
+ t __attribute__((aligned(n))) v
+ #define DECLARE_ASM_CONST(n,t,v) \
+ AV_PRAGMA(DATA_ALIGN(v,n)) \
+ static const t __attribute__((aligned(n))) v
+#elif defined(__GNUC__)
+ #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
+ #define DECLARE_ASM_CONST(n,t,v) static const t attribute_used __attribute__ ((aligned (n))) v
+#elif defined(_MSC_VER)
+ #define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v
+ #define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v
+#else
+ #define DECLARE_ALIGNED(n,t,v) t v
+ #define DECLARE_ASM_CONST(n,t,v) static const t v
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+ #define av_malloc_attrib __attribute__((__malloc__))
+#else
+ #define av_malloc_attrib
+#endif
+
+#if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,3)
+ #define av_alloc_size(n) __attribute__((alloc_size(n)))
#else
- #define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v
- #define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v
+ #define av_alloc_size(n)
#endif
/**
- * Allocate a block of \p size bytes with alignment suitable for all
+ * Allocate a block of size bytes with alignment suitable for all
* memory accesses (including vectors if available on the CPU).
* @param size Size in bytes for the memory block to be allocated.
- * @return Pointer to the allocated block, NULL if it cannot allocate
- * it.
+ * @return Pointer to the allocated block, NULL if the block cannot
+ * be allocated.
* @see av_mallocz()
*/
-void *av_malloc(unsigned int size);
+void *av_malloc(unsigned int size) av_malloc_attrib av_alloc_size(1);
/**
* Allocate or reallocate a block of memory.
- * If \p ptr is NULL and \p size > 0, allocate a new block. If \p
- * size is zero, free the memory block pointed by \p ptr.
+ * If ptr is NULL and size > 0, allocate a new block. If
+ * size is zero, free the memory block pointed to by ptr.
* @param size Size in bytes for the memory block to be allocated or
* reallocated.
* @param ptr Pointer to a memory block already allocated with
* av_malloc(z)() or av_realloc() or NULL.
- * @return Pointer to a newly reallocated block or NULL if it cannot
- * reallocate or the function is used to free the memory block.
+ * @return Pointer to a newly reallocated block or NULL if the block
+ * cannot be reallocated or the function is used to free the memory block.
* @see av_fast_realloc()
*/
-void *av_realloc(void *ptr, unsigned int size);
+void *av_realloc(void *ptr, unsigned int size) av_alloc_size(2);
/**
* Free a memory block which has been allocated with av_malloc(z)() or
void av_free(void *ptr);
/**
- * Allocate a block of \p size bytes with alignment suitable for all
+ * Allocate a block of size bytes with alignment suitable for all
* memory accesses (including vectors if available on the CPU) and
- * set to zeroes all the bytes of the block.
+ * zero all the bytes of the block.
* @param size Size in bytes for the memory block to be allocated.
- * @return Pointer to the allocated block, NULL if it cannot allocate
- * it.
+ * @return Pointer to the allocated block, NULL if it cannot be allocated.
* @see av_malloc()
*/
-void *av_mallocz(unsigned int size);
+void *av_mallocz(unsigned int size) av_malloc_attrib av_alloc_size(1);
/**
- * Duplicate the string \p s.
- * @param s String to be duplicated.
+ * Duplicate the string s.
+ * @param s string to be duplicated
* @return Pointer to a newly allocated string containing a
- * copy of \p s or NULL if it cannot be allocated.
+ * copy of s or NULL if the string cannot be allocated.
*/
-char *av_strdup(const char *s);
+char *av_strdup(const char *s) av_malloc_attrib;
/**
* Free a memory block which has been allocated with av_malloc(z)() or
- * av_realloc() and set to NULL the pointer to it.
+ * av_realloc() and set the pointer pointing to it to NULL.
* @param ptr Pointer to the pointer to the memory block which should
* be freed.
* @see av_free()
*/
void av_freep(void *ptr);
-#endif /* FFMPEG_MEM_H */
+#endif /* AVUTIL_MEM_H */