Allocate a memory block for an array with av_mallocz().
The allocated memory will have size size * nmemb bytes.
@param nmemb Number of elements
@param size Size of the single element
@return Pointer to the allocated block, or NULL if the block cannot
be allocated
Allocate a memory block for an array with av_mallocz().
The allocated memory will have size size * nmemb bytes.
@param nmemb Number of elements @param size Size of the single element @return Pointer to the allocated block, or NULL if the block cannot be allocated
@see av_mallocz() @see av_malloc_array()