virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

Doxyfication, patch by Stefano Sabatini %stefano P sabatini-lala A poste P it%

Browse Source 
Originally committed as revision 10906 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2007-11-02 19:48:13 +00:00 committed by Guillaume Poirier
parent 24e649afe3
commit 0ee97f0d3f
1 changed files with 34 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
libavutil/mem.h
View File

@ -33,26 +33,48 @@
#endif
/**
* Memory allocation of size bytes with alignment suitable for all
* memory accesses (including vectors if available on the
* CPU). av_malloc(0) must return a non-NULL pointer.
* Allocate a block of \p 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.
* @see av_mallocz()
*/
void *av_malloc(unsigned int size);
/**
* av_realloc semantics (same as glibc): If ptr is NULL and size > 0,
* identical to malloc(size). If size is zero, it is identical to
* free(ptr) and NULL is returned.
* 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.
* @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.
* @see av_fast_realloc()
*/
void *av_realloc(void *ptr, unsigned int size);
/**
* Free memory which has been allocated with av_malloc(z)() or av_realloc().
* Free a memory block which has been allocated with av_malloc(z)() or
* av_realloc().
* @param ptr Pointer to the memory block which should be freed.
* @note ptr = NULL is explicitly allowed.
* @note It is recommended that you use av_freep() instead.
* @see av_freep()
*/
void av_free(void *ptr);
/**
* Allocate a block of \p 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.
* @param size Size in bytes for the memory block to be allocated.
* @return Pointer to the allocated block, NULL if it cannot allocate
* it.
* @see av_malloc()
*/
void *av_mallocz(unsigned int size);
/**
@ -64,8 +86,11 @@ void *av_mallocz(unsigned int size);
char *av_strdup(const char *s);
/**
* Free memory and set the pointer to NULL.
* @param ptr Pointer to the pointer which should be freed.
* Free a memory block which has been allocated with av_malloc(z)() or
* av_realloc() and set to NULL the pointer to it.
* @param ptr Pointer to the pointer to the memory block which should
* be freed.
* @see av_free()
*/
void av_freep(void *ptr);