Enum QueryType

Source

#[non_exhaustive]pub enum QueryType {
Show 21 variants    Unknown,
    Position,
    Duration,
    Latency,
    Jitter,
    Rate,
    Seeking,
    Segment,
    Convert,
    Formats,
    Buffering,
    Custom,
    Uri,
    Allocation,
    Scheduling,
    AcceptCaps,
    Caps,
    Drain,
    Context,
    Bitrate,
    Selectable,
}

Expand description

Standard predefined Query types

Variants (Non-exhaustive)§

This enum is marked as 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.

§

Unknown

unknown query type

§

Position

current position in stream

§

Duration

total duration of the stream

§

Latency

latency of stream

§

Jitter

current jitter of stream

§

Rate

current rate of the stream

§

Seeking

seeking capabilities

§

Segment

segment start/stop positions

§

Convert

convert values between formats

§

Formats

query supported formats for convert

§

Buffering

query available media for efficient seeking.

§

Custom

a custom application or element defined query.

§

Uri

query the URI of the source or sink.

§

Allocation

the buffer allocation properties

§

Scheduling

the scheduling properties

§

AcceptCaps

the accept caps query

§

Caps

the caps query

§

Drain

wait till all serialized data is consumed downstream

§

Context

query the pipeline-local context from downstream or upstream (since 1.2)

§

Bitrate

the bitrate query (since 1.16)

§

Selectable

Query stream selection capability.

Implementations§

Source §

pub fn is_serialized(self) -> bool

Trait Implementations§

Source §

impl Clone for QueryType

Source §

fn clone(&self) -> QueryType

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

Source §

impl Debug for QueryType

Source §

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

Formats the value using the given formatter. Read more

Source §

impl Display for QueryType

Source §

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

Formats the value using the given formatter. Read more

Source §

impl From<QueryType> for Value

Source §

fn from(v: QueryType) -> Self

Converts to this type from the input type.

Source §

impl<'a> FromValue<'a> for QueryType

Source §

type Checker = GenericValueTypeChecker<QueryType>

Value type checker.

Source §

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

Get the contained value from a Value. Read more

Source §

impl HasParamSpec for QueryType

Source §

type ParamSpec = ParamSpecEnum

Source §

type SetValue = QueryType

Preferred value to be used as setter for the associated ParamSpec.

Source §

type BuilderFn = fn(&str, QueryType) -> ParamSpecEnumBuilder<'_, QueryType>

Source §

fn param_spec_builder() -> Self::BuilderFn

Source §

impl Hash for QueryType

Source §

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more

Source §

impl PartialEq for QueryType

Source §

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

Source §

impl StaticType for QueryType

Source §

fn static_type() -> Type

Returns the type identifier of Self.

Source §

impl ToValue for QueryType

Source §

fn to_value(&self) -> Value

Convert a value to a Value.

Source §

fn value_type(&self) -> Type

Returns the type identifier of self. Read more

Source §

impl ValueType for QueryType

Source §

type Type = QueryType

Type to get the Type from. Read more

Source §

impl Copy for QueryType

Source §

impl Eq for QueryType

Source §

impl StructuralPartialEq for QueryType

Auto Trait Implementations§

§

impl Freeze for QueryType

§

impl RefUnwindSafe for QueryType

§

impl Send for QueryType

§

impl Sync for QueryType

§

impl Unpin for QueryType

§

impl UnwindSafe for QueryType

Blanket Implementations§

Source §

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

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

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

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

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

Source §

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

Mutably borrows from an owned value. Read more

Source §

impl<T> CloneToUninit for T
where T: Clone,

Source §

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

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

Source §

fn into(self) -> U

Calls U::from(self).

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

Source §

impl<T> IntoClosureReturnValue for T
where T: Into<Value>,

Source §

fn into_closure_return_value(self) -> Option<Value>

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §