Struct gstreamer::DeviceProvider

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pub struct DeviceProvider(_, _);

[−] Expand description

A DeviceProvider subclass is provided by a plugin that handles devices if there is a way to programmatically list connected devices. It can also optionally provide updates to the list of connected devices.

Each DeviceProvider subclass is a singleton, a plugin should normally provide a single subclass for all devices.

Applications would normally use a DeviceMonitor to monitor devices from all relevant providers.

Implements

DeviceProviderExt, GstObjectExt, glib::object::ObjectExt

Methods

impl DeviceProvider[−]

pub fn register(
    plugin: Option<&Plugin>,
    name: &str,
    rank: Rank,
    type_: Type
) -> Result<(), BoolError>[−]

Create a new device providerfactory capable of instantiating objects of the type_ and add the factory to plugin.

plugin

Plugin to register the device provider with, or None for a static device provider.

name

name of device providers of this type

rank

rank of device provider (higher rank means more importance when autoplugging)

type_

GType of device provider to register

Returns

true, if the registering succeeded, false on error

Trait Implementations

impl Clone for DeviceProvider[+]

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fn clone(&self) -> DeviceProvider[−]

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Debug for DeviceProvider[+]

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fn fmt(&self, f: &mut Formatter) -> Result[−]

Formats the value using the given formatter.

impl Eq for DeviceProvider

impl Hash for DeviceProvider[+]

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fn hash<__H: Hasher>(&self, state: &mut __H)[−]

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl IsA<Object> for DeviceProvider

impl Ord for DeviceProvider[+]

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fn cmp(&self, other: &DeviceProvider) -> Ordering[−]

This method returns an [Ordering] between self and other.

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#[must_use] fn max(self, other: Self) -> Self[−]

Compares and returns the maximum of two values.

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#[must_use] fn min(self, other: Self) -> Self[−]

Compares and returns the minimum of two values.

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#[must_use] fn clamp(self, min: Self, max: Self) -> Self[−]

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

Restrict a value to a certain interval.

impl<T: ObjectType> PartialEq<T> for DeviceProvider[+]

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fn eq(&self, other: &T) -> bool[−]

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

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#[must_use] fn ne(&self, other: &Rhs) -> bool[−]

This method tests for !=.

impl<T: ObjectType> PartialOrd<T> for DeviceProvider[+]

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fn partial_cmp(&self, other: &T) -> Option<Ordering>[−]

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

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#[must_use] fn lt(&self, other: &Rhs) -> bool[−]

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

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#[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.

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#[must_use] fn gt(&self, other: &Rhs) -> bool[−]

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

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#[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 Send for DeviceProvider

impl StaticType for DeviceProvider[+]

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fn static_type() -> Type[−]

Returns the type identifier of Self.

impl Sync for DeviceProvider