Function rsmpeg::ffi::av_reallocp [−][src]
pub unsafe extern "C" fn av_reallocp(ptr: *mut c_void, size: u64) -> i32
Expand description
Allocate, reallocate, or free a block of memory through a pointer to a pointer.
If *ptr
is NULL
and size
> 0, allocate a new block. If size
is
zero, free the memory block pointed to by *ptr
. Otherwise, expand or
shrink that block of memory according to size
.
@param[in,out] ptr Pointer to a pointer to a memory block already allocated
with av_realloc(), or a pointer to NULL
. The pointer
is updated on success, or freed on failure.
@param[in] size Size in bytes for the memory block to be allocated or
reallocated
@return Zero on success, an AVERROR error code on failure
@warning Unlike av_malloc(), the allocated memory is not guaranteed to be correctly aligned.