devices::virtio::video::command

Enum VideoCmd

pub enum VideoCmd {
Show 13 variants    QueryCapability {
        queue_type: QueueType,
    },
    StreamCreate {
        stream_id: u32,
        coded_format: Format,
        input_resource_type: ResourceType,
        output_resource_type: ResourceType,
    },
    StreamDestroy {
        stream_id: u32,
    },
    StreamDrain {
        stream_id: u32,
    },
    ResourceCreate {
        stream_id: u32,
        queue_type: QueueType,
        resource_id: u32,
        plane_offsets: Vec<u32>,
        plane_entries: Vec<Vec<UnresolvedResourceEntry>>,
    },
    ResourceQueue {
        stream_id: u32,
        queue_type: QueueType,
        resource_id: u32,
        timestamp: u64,
        data_sizes: Vec<u32>,
    },
    ResourceDestroyAll {
        stream_id: u32,
        queue_type: QueueType,
    },
    QueueClear {
        stream_id: u32,
        queue_type: QueueType,
    },
    GetParams {
        stream_id: u32,
        queue_type: QueueType,
        is_ext: bool,
    },
    SetParams {
        stream_id: u32,
        queue_type: QueueType,
        params: Params,
        is_ext: bool,
    },
    QueryControl {
        query_ctrl_type: QueryCtrlType,
    },
    GetControl {
        stream_id: u32,
        ctrl_type: CtrlType,
    },
    SetControl {
        stream_id: u32,
        ctrl_val: CtrlVal,
    },
}

Variants§

QueryCapability

Fields

§queue_type: QueueType

StreamCreate

Fields

§stream_id: u32

§coded_format: Format

§input_resource_type: ResourceType

§output_resource_type: ResourceType

StreamDestroy

Fields

§stream_id: u32

StreamDrain

Fields

§stream_id: u32

ResourceCreate

Fields

§stream_id: u32

§queue_type: QueueType

§resource_id: u32

§plane_offsets: Vec<u32>

§plane_entries: Vec<Vec<UnresolvedResourceEntry>>

The outer vector contains one entry per memory plane, whereas the inner vector contains all the memory entries that make a single plane (i.e. one for virtio objects, one or more for guest pages).

ResourceQueue

Fields

§stream_id: u32

§queue_type: QueueType

§resource_id: u32

§timestamp: u64

§data_sizes: Vec<u32>

ResourceDestroyAll

Fields

§stream_id: u32

§queue_type: QueueType

QueueClear

Fields

§stream_id: u32

§queue_type: QueueType

GetParams

Fields

§stream_id: u32

§queue_type: QueueType

§is_ext: bool

true if this command has been created from the GET_PARAMS_EXT guest command.

SetParams

Fields

§stream_id: u32

§queue_type: QueueType

§params: Params

§is_ext: bool

true if this command has been created from the SET_PARAMS_EXT guest command.

QueryControl

Fields

§query_ctrl_type: QueryCtrlType

GetControl

Fields

§stream_id: u32

§ctrl_type: CtrlType

SetControl

Fields

§stream_id: u32

§ctrl_val: CtrlVal

Implementations§

impl VideoCmd

pub fn from_reader(r: &mut Reader) -> Result<Self, ReadCmdError>

Reads a request on virtqueue and construct a VideoCmd value.

Trait Implementations§

impl Debug for VideoCmd

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl Freeze for VideoCmd

impl RefUnwindSafe for VideoCmd

impl Send for VideoCmd

impl Sync for VideoCmd

impl Unpin for VideoCmd

impl UnwindSafe for VideoCmd

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V