Struct cros_codecs::utils::UserPtrSurface

pub struct UserPtrSurface {
    pub buffers: Vec<*mut u8>,
    pub mem_layout: Layout,
    pub layout: SurfaceLayout,
}

A structure that holds user-allocated memory for a surface as well as its layout.

Fields

buffers: Vec<*mut u8>

mem_layout: Layout

layout: SurfaceLayout

Implementations

impl UserPtrSurface

pub fn new_nv12(size: Resolution) -> Self

Allocate enough memory to back a NV12 surface of size dimension.

Trait Implementations

impl Debug for UserPtrSurface

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for UserPtrSurface

fn drop(&mut self)

Executes the destructor for this type.

impl ExternalBufferDescriptor for UserPtrSurface

const MEMORY_TYPE: MemoryType = libva::MemoryType::UserPtr

Memory type to set for VASurfaceAttribMemoryType.

type DescriptorAttribute = _VASurfaceAttribExternalBuffers

Type of the descriptor to be set with VASurfaceAttribExternalBuffers.

fn va_surface_attribute(&mut self) -> Self::DescriptorAttribute

Returns the Self::DescriptorAttribute instance allowing this memory to be imported into VAAPI.