class

V4L2::AllocatedBuffer

Inherits Reference < Object

Represents a buffer allocated and controlled by the application, which the V4L2 kernel API will write data into.

Constructors

malloc(length : UInt32) : AllocatedBuffer

Mallocs a new buffer of the given length.

mmap(fd : Int32, offset : UInt32, length : UInt32) : AllocatedBuffer

Memory-maps a new buffer using the given file descriptor, offset, and length.

new(memory : Memory, pointer : Pointer(UInt8), length : UInt32)

Initializes an allocated buffer, with the specified memory type, pointer, and length.

finalize

De-allocates the buffer.

length

The length of the allocated buffer.

memory

The memory type of the allocated buffer.

pointer

The raw pointer to the allocated buffer.

to_slice

Returns a slice to the allocated buffer.

to_unsafe

Returns a raw pointer to the allocated buffer.