diff options
Diffstat (limited to 'libavutil/mem.h')
-rw-r--r-- | libavutil/mem.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libavutil/mem.h b/libavutil/mem.h index 8f4722447d..8a4fcd90ae 100644 --- a/libavutil/mem.h +++ b/libavutil/mem.h @@ -112,6 +112,32 @@ av_alloc_size(1, 2) static inline void *av_malloc_array(size_t nmemb, size_t siz void *av_realloc(void *ptr, size_t size) av_alloc_size(2); /** + * Allocate or reallocate an array. + * If ptr is NULL and nmemb > 0, allocate a new block. If + * nmemb is zero, free the memory block pointed to by ptr. + * @param ptr Pointer to a memory block already allocated with + * av_malloc(z)() or av_realloc() or NULL. + * @param nmemb Number of elements + * @param size Size of the single element + * @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. + */ +av_alloc_size(2, 3) void *av_realloc_array(void *ptr, size_t nmemb, size_t size); + +/** + * Allocate or reallocate an array. + * If *ptr is NULL and nmemb > 0, allocate a new block. If + * nmemb is zero, free the memory block pointed to by ptr. + * @param ptr Pointer to a pointer to a memory block already allocated + * with av_malloc(z)() or av_realloc(), or pointer to a pointer to NULL. + * The pointer is updated on success, or freed on failure. + * @param nmemb Number of elements + * @param size Size of the single element + * @return Zero on success, an AVERROR error code on failure. + */ +av_alloc_size(2, 3) int av_reallocp_array(void *ptr, size_t nmemb, size_t size); + +/** * 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. |