Struct cros_codecs::utils::vaapi::GenericBackendHandle

pub struct GenericBackendHandle {
    state: PictureState,
    resolution: Resolution,
    surface_pool: SurfacePoolHandle,
}

VA-API backend handle.

This includes the VA picture which can be pending rendering or complete, as well as useful meta-information.

Fields

state: PictureState

resolution: Resolution

The decoder resolution when this frame was processed. Not all codecs send resolution data in every frame header.

surface_pool: SurfacePoolHandle

A handle to the surface pool from which the backing surface originates.

Implementations

impl GenericBackendHandle

pub(crate) fn new_pending(
    picture: Picture<PictureNew>,
    surface_pool: SurfacePoolHandle
) -> Result<Self>

Creates a new pending handle on surface_id.

pub(crate) fn sync(&mut self, metadata: &ParsedStreamMetadata) -> Result<()>

pub fn image(&mut self) -> Result<Image<'_>>

Returns a mapped VAImage. this maps the VASurface onto our address space. This can be used in place of “DynMappableHandle::map()” if the client wants to access the backend mapping directly for any reason.

Note that DynMappableHandle is downcastable.

pub fn picture(&self) -> Option<&Picture<PictureSync>>

Returns the picture of this handle.

pub fn surface_id(&self) -> VASurfaceID

Returns the id of the VA surface backing this handle.

pub fn is_ready(&self) -> bool

Returns true if this handle is ready.

pub fn is_va_ready(&self) -> Result<bool>

Trait Implementations

impl Drop for GenericBackendHandle

fn drop(&mut self)

Executes the destructor for this type.

impl DynHandle for GenericBackendHandle

fn dyn_mappable_handle_mut<'a>(&'a mut self) -> Box<dyn MappableHandle + 'a>

Gets an exclusive reference to the backend handle of this picture. Assumes that this picture is backed by a handle and panics if not the case.