Enum gstreamer::Rank

#[non_exhaustive]
pub enum Rank {
    None,
    Marginal,
    Secondary,
    Primary,
    // some variants omitted
}

Element priority ranks. Defines the order in which the autoplugger (or similar rank-picking mechanisms, such as e.g. Element::make_from_uri()) will choose this element over an alternative one with the same function.

These constants serve as a rough guidance for defining the rank of a PluginFeature. Any value is valid, including values bigger than Primary.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

will be chosen last or not at all

Marginal

unlikely to be chosen

Secondary

likely to be chosen

Primary

will be chosen first

Trait Implementations

impl Add<u32> for Rank

type Output = Rank

The resulting type after applying the + operator.

fn add(self, rhs: u32) -> Rank

Performs the + operation.

impl AddAssign<u32> for Rank

fn add_assign(&mut self, rhs: u32)

Performs the += operation.

impl Clone for Rank

fn clone(&self) -> Rank

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Rank

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

Formats the value using the given formatter.

impl<'a> FromValue<'a> for Rank

type Checker = GenericValueTypeChecker<Self>

Value type checker.

unsafe fn from_value(value: &'a Value) -> Self

Get the contained value from a Value.

impl Ord for Rank

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

#[must_use]

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Rank> for Rank

fn eq(&self, other: &Rank) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<Rank> for Rank

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for Rank

fn static_type() -> Type

Returns the type identifier of Self.

impl Sub<u32> for Rank

type Output = Rank

The resulting type after applying the - operator.

fn sub(self, rhs: u32) -> Rank

Performs the - operation.

impl SubAssign<u32> for Rank

fn sub_assign(&mut self, rhs: u32)

Performs the -= operation.

impl ToValue for Rank

fn to_value(&self) -> Value

Convert a value to a Value.

fn value_type(&self) -> Type

Returns the type identifer of self.

impl ValueType for Rank

type Type = Self

Type to get the Type from.

impl Copy for Rank

impl Eq for Rank