Function CMBlockBufferCreateWithMemoryBlock 

pub unsafe extern "C-unwind" fn CMBlockBufferCreateWithMemoryBlock(
    structure_allocator: Option<&CFAllocator>,
    memory_block: *mut c_void,
    block_length: usize,
    block_allocator: Option<&CFAllocator>,
    custom_block_source: *const CMBlockBufferCustomBlockSource,
    offset_to_data: usize,
    data_length: usize,
    flags: CMBlockBufferFlags,
    block_buffer_out: NonNull<*mut CMBlockBuffer>,
) -> i32

👎Deprecated: renamed to CMBlockBuffer::create_with_memory_block

Available on crate feature CMBlockBuffer only.