Struct gstreamer_gl::GLContext

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#[repr(transparent)]
pub struct GLContext { /* private fields */ }

Expand description

GLContext wraps an OpenGL context object in a uniform API. As a result of the limitation on OpenGL context, this object is not thread safe unless specified and must only be activated in a single thread.

Environment variables:

GST_GL_API: select which OpenGL API to create and OpenGL context for. Depending on the platform, the available values are ‘opengl’, ‘opengl3’ (core profile), and ‘gles2’. See the the GLAPI enumeration for more details.
GST_GL_PLATFORM: select which OpenGL platform to create an OpenGL context with. Depending on the platform and the dependencies available build-time, the available values are, ‘glx’, ‘egl’, ‘cgl’, ‘wgl’, and ‘eagl’
GST_GL_CONFIG: select the configuration used for creating the OpenGL context and OpenGL surface. Written out as a GstStructure that has been serialized to string. e.g. GST_GL_CONFIG="gst-gl-context-config,red-size=8,green-size=8,blue-size=8,alpha-size=8,depth-size=16". Not all platforms will support the same level of functionality.

This is an Abstract Base Class, you cannot instantiate it.

Implements

GLContextExt, gst::prelude::ObjectExt, trait@glib::ObjectExt, GLContextExtManual

Implementations

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impl GLContext

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pub const NONE: Option<&'static GLContext>

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pub fn new(display: &impl IsA<GLDisplay>) -> GLContext

Create a new GLContext with the specified display

`display`

a GLDisplay

Returns

a new GLContext

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pub fn current() -> Option<GLContext>

Returns

the GLContext active in the current thread or None

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pub fn current_gl_api(platform: GLPlatform) -> (GLAPI, u32, u32 )

If an error occurs, major and minor are not modified and GST_GL_API_NONE is returned.

`platform`

the GLPlatform to retrieve the API for

Returns

The version supported by the OpenGL context current in the calling thread or GST_GL_API_NONE

`major`

the major version

`minor`

the minor version

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impl GLContext

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pub unsafe fn new_wrapped<T: IsA<GLDisplay>>(
 display: &T,
 handle: uintptr_t,
 context_type: GLPlatform,
 available_apis: GLAPI
) -> Option<Self>

Wraps an existing OpenGL context into a GLContext.

Note: The caller is responsible for ensuring that the OpenGL context represented by handle stays alive while the returned GLContext is active.

context_type must not be GST_GL_PLATFORM_NONE or GST_GL_PLATFORM_ANY

available_apis must not be GST_GL_API_NONE or GST_GL_API_ANY

`display`

a GLDisplay

`handle`

the OpenGL context to wrap

`context_type`

a GLPlatform specifying the type of context in handle

`available_apis`

a GLAPI containing the available OpenGL apis in handle

Returns

a GLContext wrapping handle

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pub fn current_gl_context(context_type: GLPlatform) -> uintptr_t

`context_type`

a GLPlatform specifying the type of context to retrieve

Returns

The OpenGL context handle current in the calling thread or None

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pub fn proc_address_with_platform(
    context_type: GLPlatform,
    gl_api: GLAPI,
    name: &str
) -> uintptr_t

Attempts to use the context_type specific GetProcAddress implementations to retrieve name.

`context_type`

a GLPlatform

`gl_api`

a GLAPI

`name`

the name of the function to retrieve

Returns

a function pointer for name, or None

Trait Implementations

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impl Clone for GLContext

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fn clone(&self) -> Self

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for GLContext

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

Formats the value using the given formatter. Read more

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impl Hash for GLContext

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

Feeds this value into the given Hasher. Read more

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

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

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impl Ord for GLContext

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

This method returns an Ordering between self and other. Read more

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

Compares and returns the maximum of two values. Read more

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

Compares and returns the minimum of two values. Read more

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

Restrict a value to a certain interval. Read more

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impl ParentClassIs for GLContext

type Parent = Object

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impl<OT: ObjectType> PartialEq<OT> for GLContext

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

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

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

This method tests for !=.

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impl<OT: ObjectType> PartialOrd<OT> for GLContext

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

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

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

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

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

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

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

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

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

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

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impl StaticType for GLContext

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fn static_type() -> Type

Returns the type identifier of Self.

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impl Sync for GLContext

Auto Trait Implementations

impl RefUnwindSafe for GLContext

impl Unpin for GLContext

impl UnwindSafe for GLContext

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> Cast for T where
T: ObjectType,

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fn upcast<T>(self) -> T where
T: ObjectType,
Self: IsA<T>,

Upcasts an object to a superclass or interface T. Read more

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fn upcast_ref<T>(&self) -> &T where
T: ObjectType,
Self: IsA<T>,

Upcasts an object to a reference of its superclass or interface T. Read more

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fn downcast<T>(self) -> Result<T, Self> where
T: ObjectType,
Self: CanDowncast<T>,

Tries to downcast to a subclass or interface implementor T. Read more

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fn downcast_ref<T>(&self) -> Option<&T> where
T: ObjectType,
Self: CanDowncast<T>,

Tries to downcast to a reference of its subclass or interface implementor T. Read more

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fn dynamic_cast<T>(self) -> Result<T, Self> where
T: ObjectType,

Tries to cast to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more

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fn dynamic_cast_ref<T>(&self) -> Option<&T> where
T: ObjectType,

Tries to cast to reference to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more

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unsafe fn unsafe_cast<T>(self) -> T where
T: ObjectType,

Casts to T unconditionally. Read more

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unsafe fn unsafe_cast_ref<T>(&self) -> &T where
T: ObjectType,

Casts to &T unconditionally. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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impl<O> GObjectExtManualGst for O where
O: IsA<Object>,

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pub fn try_set_property_from_str(
 &self,
 name: &str,
 value: &str
) -> Result<(), BoolError>

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pub fn set_property_from_str(&self, name: &str, value: &str)

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impl<O> GstObjectExt for O where
O: IsA<Object>,

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pub fn add_control_binding(
&self,
binding: &impl IsA<ControlBinding>
) -> Result<(), BoolError>

Attach the ControlBinding to the object. If there already was a ControlBinding for this property it will be replaced. Read more

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pub fn default_error(&self, error: &Error, debug: Option<&str>)

A default error function that uses g_printerr() to display the error message and the optional debug string.. Read more

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pub fn control_binding(&self, property_name: &str) -> Option<ControlBinding>

Gets the corresponding ControlBinding for the property. This should be unreferenced again after use. Read more

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pub fn control_rate(&self) -> Option<ClockTime>

Obtain the control-rate for this self. Audio processing Element objects will use this rate to sub-divide their processing loop and call sync_values() in between. The length of the processing segment should be up to control-rate nanoseconds. Read more

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pub fn name(&self) -> GString

Returns a copy of the name of self. Caller should g_free() the return value after usage. For a nameless object, this returns None, which you can safely g_free() as well. Read more

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pub fn parent(&self) -> Option<Object>

Returns the parent of self. This function increases the refcount of the parent object so you should gst_object_unref() it after usage. Read more

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pub fn path_string(&self) -> GString

Generates a string describing the path of self in the object hierarchy. Only useful (or used) for debugging. Read more

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pub fn value(
 &self,
 property_name: &str,
 timestamp: impl Into<Option<ClockTime>>
) -> Option<Value>

Gets the value for the given controlled property at the requested time. Read more

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pub fn has_active_control_bindings(&self) -> bool

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pub fn has_ancestor(&self, ancestor: &impl IsA<Object>) -> bool

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pub fn has_as_ancestor(&self, ancestor: &impl IsA<Object>) -> bool

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pub fn has_as_parent(&self, parent: &impl IsA<Object>) -> bool

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pub fn remove_control_binding(&self, binding: &impl IsA<ControlBinding>) -> bool

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pub fn set_control_binding_disabled(&self, property_name: &str, disabled: bool)

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pub fn set_control_bindings_disabled(&self, disabled: bool)

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pub fn set_control_rate(&self, control_rate: impl Into<Option<ClockTime>>)

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pub fn set_parent(&self, parent: &impl IsA<Object>) -> Result<(), BoolError>

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pub fn suggest_next_sync(&self) -> Option<ClockTime>

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pub fn sync_values(&self, timestamp: ClockTime) -> Result<(), BoolError>

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pub fn unparent(&self)

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pub fn connect_parent_notify<F>(&self, f: F) -> SignalHandlerId where
F: 'static + Fn(&O) + Send + Sync,

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impl<O> GstObjectExtManual for O where
O: IsA<Object>,

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pub fn connect_deep_notify<F>(
 &self,
 name: Option<&str>,
 f: F
) -> SignalHandlerId where
 F: 'static + Fn(&O, &Object, &ParamSpec) + Send + Sync,

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pub fn set_object_flags(&self, flags: ObjectFlags)

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pub fn unset_object_flags(&self, flags: ObjectFlags)

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pub fn object_flags(&self) -> ObjectFlags

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pub fn g_value_array(
 &self,
 property_name: &str,
 timestamp: ClockTime,
 interval: ClockTime,
 values: &mut [Value ]
) -> Result<(), BoolError>

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

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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impl IsSubclassableExt for U where
U: IsClass + ParentClassIs,

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pub fn parent_class_init<T>(class: &mut Class) where
T: ObjectSubclass,
::Parent: IsSubclassable<T>,

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pub fn parent_instance_init<T>(instance: &mut InitializingObject<T>) where
T: ObjectSubclass,
::Parent: IsSubclassable<T>,

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impl<T> ObjectExt for T where
T: ObjectType,

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pub fn is(&self) -> bool where
U: StaticType,

Returns true if the object is an instance of (can be cast to) T.

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pub fn type_(&self) -> Type

Returns the type of the object.

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pub fn object_class(&self) -> &Class<Object>

Returns the ObjectClass of the object. Read more

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pub fn class(&self) -> &Class<T> where
T: IsClass,

Returns the class of the object.

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pub fn class_of(&self) -> Option<&Class> where
U: IsClass,

Returns the class of the object in the given type T. Read more

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pub fn interface(&self) -> Option<InterfaceRef<'_, U>> where
U: IsInterface,

Returns the interface T of the object. Read more

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pub fn try_set_property<V>(
 &self,
 property_name: &str,
 value: V
) -> Result<(), BoolError> where
 V: ToValue,

Similar to Self::set_property but fails instead of panicking.

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pub fn set_property<V>(&self, property_name: &str, value: V) where
V: ToValue,

Sets the property property_name of the object to value value. Read more

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pub fn try_set_property_from_value(
 &self,
 property_name: &str,
 value: &Value
) -> Result<(), BoolError>

Similar to Self::set_property but fails instead of panicking.

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pub fn set_property_from_value(&self, property_name: &str, value: &Value)

Sets the property property_name of the object to value value. Read more

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pub fn try_set_properties(
&self,
property_values: &[(&str, &dyn ToValue )]
) -> Result<(), BoolError>

Similar to Self::set_properties but fails instead of panicking.

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pub fn set_properties(&self, property_values: &[(&str, &dyn ToValue )])

Sets multiple properties of the object at once. Read more

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pub fn try_set_properties_from_value(
&self,
property_values: &[(&str, Value )]
) -> Result<(), BoolError>

Similar to Self::set_properties_from_value but fails instead of panicking.

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pub fn set_properties_from_value(&self, property_values: &[(&str, Value )])

Sets multiple properties of the object at once. Read more

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pub fn try_property<V>(&self, property_name: &str) -> Result<V, BoolError> where
V: 'static + for<'b> FromValue<'b>,

Similar to Self::property but fails instead of panicking.

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pub fn property<V>(&self, property_name: &str) -> V where
V: 'static + for<'b> FromValue<'b>,

Gets the property property_name of the object and cast it to the type V. Read more

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pub fn try_property_value(
&self,
property_name: &str
) -> Result<Value, BoolError>

Similar to Self::property_value but fails instead of panicking.

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pub fn property_value(&self, property_name: &str) -> Value

Gets the property property_name of the object. Read more

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pub fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object has a property property_name of the given type_. Read more

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pub fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object. Read more

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pub fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Get the ParamSpec of the property property_name of this object.

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pub fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object.

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pub fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more

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pub unsafe fn set_qdata<QD>(&self, key: Quark, value: QD) where
QD: 'static,

Set arbitrary data on this object with the given key. Read more

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pub unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>> where
QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more

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pub unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD> where
QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more

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pub unsafe fn set_data<QD>(&self, key: &str, value: QD) where
QD: 'static,

Set arbitrary data on this object with the given key. Read more

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pub unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>> where
QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more

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pub unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD> where
QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more

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pub fn block_signal(&self, handler_id: &SignalHandlerId)

Block a given signal handler. Read more

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pub fn unblock_signal(&self, handler_id: &SignalHandlerId)

Unblock a given signal handler.

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pub fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)

Stop emission of the currently emitted signal.

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pub fn stop_signal_emission_by_name(&self, signal_name: &str)

Stop emission of the currently emitted signal by the (possibly detailed) signal name.

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pub fn try_connect<F>(
 &self,
 signal_name: &str,
 after: bool,
 callback: F
) -> Result<SignalHandlerId, BoolError> where
 F: 'static + Fn(&[Value ]) -> Option<Value> + Send + Sync,

Similar to Self::connect but fails instead of panicking.

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pub fn connect<F>(
 &self,
 signal_name: &str,
 after: bool,
 callback: F
) -> SignalHandlerId where
 F: 'static + Fn(&[Value ]) -> Option<Value> + Send + Sync,

Connect to the signal signal_name on this object. Read more

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pub fn try_connect_id<F>(
 &self,
 signal_id: SignalId,
 details: Option<Quark>,
 after: bool,
 callback: F
) -> Result<SignalHandlerId, BoolError> where
 F: 'static + Fn(&[Value ]) -> Option<Value> + Send + Sync,

Similar to Self::connect_id but fails instead of panicking.

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pub fn connect_id<F>(
 &self,
 signal_id: SignalId,
 details: Option<Quark>,
 after: bool,
 callback: F
) -> SignalHandlerId where
 F: 'static + Fn(&[Value ]) -> Option<Value> + Send + Sync,

Connect to the signal signal_id on this object. Read more

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pub fn try_connect_local<F>(
 &self,
 signal_name: &str,
 after: bool,
 callback: F
) -> Result<SignalHandlerId, BoolError> where
 F: 'static + Fn(&[Value ]) -> Option<Value>,

Similar to Self::connect_local but fails instead of panicking.

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pub fn connect_local<F>(
 &self,
 signal_name: &str,
 after: bool,
 callback: F
) -> SignalHandlerId where
 F: 'static + Fn(&[Value ]) -> Option<Value>,

Connect to the signal signal_name on this object. Read more

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pub fn try_connect_local_id<F>(
 &self,
 signal_id: SignalId,
 details: Option<Quark>,
 after: bool,
 callback: F
) -> Result<SignalHandlerId, BoolError> where
 F: 'static + Fn(&[Value ]) -> Option<Value>,

Similar to Self::connect_local_id but fails instead of panicking.

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pub fn connect_local_id<F>(
 &self,
 signal_id: SignalId,
 details: Option<Quark>,
 after: bool,
 callback: F
) -> SignalHandlerId where
 F: 'static + Fn(&[Value ]) -> Option<Value>,

Connect to the signal signal_id on this object. Read more

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pub unsafe fn try_connect_unsafe<F>(
 &self,
 signal_name: &str,
 after: bool,
 callback: F
) -> Result<SignalHandlerId, BoolError> where
 F: Fn(&[Value ]) -> Option<Value>,

Similar to Self::connect_unsafe but fails instead of panicking.

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pub unsafe fn connect_unsafe<F>(
 &self,
 signal_name: &str,
 after: bool,
 callback: F
) -> SignalHandlerId where
 F: Fn(&[Value ]) -> Option<Value>,

Connect to the signal signal_name on this object. Read more

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pub unsafe fn try_connect_unsafe_id<F>(
 &self,
 signal_id: SignalId,
 details: Option<Quark>,
 after: bool,
 callback: F
) -> Result<SignalHandlerId, BoolError> where
 F: Fn(&[Value ]) -> Option<Value>,

Similar to Self::connect_unsafe_id but fails instead of panicking.

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pub fn try_connect_closure(
 &self,
 signal_name: &str,
 after: bool,
 closure: RustClosure
) -> Result<SignalHandlerId, BoolError>

Similar to Self::connect_closure but fails instead of panicking.

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pub fn connect_closure(
    &self,
    signal_name: &str,
    after: bool,
    closure: RustClosure
) -> SignalHandlerId

Connect a closure to the signal signal_name on this object. Read more

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pub fn try_connect_closure_id(
 &self,
 signal_id: SignalId,
 details: Option<Quark>,
 after: bool,
 closure: RustClosure
) -> Result<SignalHandlerId, BoolError>

Similar to Self::connect_closure_id but fails instead of panicking.

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pub fn connect_closure_id(
 &self,
 signal_id: SignalId,
 details: Option<Quark>,
 after: bool,
 closure: RustClosure
) -> SignalHandlerId

Connect a closure to the signal signal_id on this object. Read more

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pub fn watch_closure(&self, closure: &impl AsRef<Closure>)

Limits the lifetime of closure to the lifetime of the object. When the object’s reference count drops to zero, the closure will be invalidated. An invalidated closure will ignore any calls to Closure::invoke. Read more

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pub unsafe fn connect_unsafe_id<F>(
 &self,
 signal_id: SignalId,
 details: Option<Quark>,
 after: bool,
 callback: F
) -> SignalHandlerId where
 F: Fn(&[Value ]) -> Option<Value>,

Connect to the signal signal_id on this object. Read more

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pub fn try_emit<R>(
 &self,
 signal_id: SignalId,
 args: &[&dyn ToValue ]
) -> Result<R, BoolError> where
 R: TryFromClosureReturnValue,

Similar to Self::emit but fails instead of panicking.

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pub fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue ]) -> R where
R: TryFromClosureReturnValue,

Emit signal by signal id. Read more

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pub fn try_emit_with_values(
 &self,
 signal_id: SignalId,
 args: &[Value ]
) -> Result<Option<Value>, BoolError>

Similar to Self::emit_with_values but fails instead of panicking.

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pub fn emit_with_values(
 &self,
 signal_id: SignalId,
 args: &[Value ]
) -> Option<Value>

Same as Self::emit but takes Value for the arguments.

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pub fn try_emit_by_name<R>(
 &self,
 signal_name: &str,
 args: &[&dyn ToValue ]
) -> Result<R, BoolError> where
 R: TryFromClosureReturnValue,

Similar to Self::emit_by_name but fails instead of panicking.

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pub fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue ]) -> R where
R: TryFromClosureReturnValue,

Emit signal by its name. Read more

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pub fn try_emit_by_name_with_values(
 &self,
 signal_name: &str,
 args: &[Value ]
) -> Result<Option<Value>, BoolError>

Similar to Self::emit_by_name_with_values but fails instead of panicking.

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pub fn emit_by_name_with_values(
 &self,
 signal_name: &str,
 args: &[Value ]
) -> Option<Value>

Emit signal by its name. Read more

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pub fn try_emit_by_name_with_details<R>(
 &self,
 signal_name: &str,
 details: Quark,
 args: &[&dyn ToValue ]
) -> Result<R, BoolError> where
 R: TryFromClosureReturnValue,

Similar to Self::emit_by_name_with_details but fails instead of panicking.

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pub fn emit_by_name_with_details<R>(
 &self,
 signal_name: &str,
 details: Quark,
 args: &[&dyn ToValue ]
) -> R where
 R: TryFromClosureReturnValue,

Emit signal by its name with details. Read more

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pub fn try_emit_by_name_with_details_and_values(
 &self,
 signal_name: &str,
 details: Quark,
 args: &[Value ]
) -> Result<Option<Value>, BoolError>

Similar to Self::emit_by_name_with_details_and_values but fails instead of panicking.

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pub fn emit_by_name_with_details_and_values(
 &self,
 signal_name: &str,
 details: Quark,
 args: &[Value ]
) -> Option<Value>

Emit signal by its name with details. Read more

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pub fn try_emit_with_details<R>(
 &self,
 signal_id: SignalId,
 details: Quark,
 args: &[&dyn ToValue ]
) -> Result<R, BoolError> where
 R: TryFromClosureReturnValue,

Similar to Self::emit_with_details but fails instead of panicking.

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pub fn emit_with_details<R>(
 &self,
 signal_id: SignalId,
 details: Quark,
 args: &[&dyn ToValue ]
) -> R where
 R: TryFromClosureReturnValue,

Emit signal by signal id with details. Read more

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pub fn try_emit_with_details_and_values(
 &self,
 signal_id: SignalId,
 details: Quark,
 args: &[Value ]
) -> Result<Option<Value>, BoolError>

Similar to Self::emit_with_details_and_values but fails instead of panicking.

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pub fn emit_with_details_and_values(
 &self,
 signal_id: SignalId,
 details: Quark,
 args: &[Value ]
) -> Option<Value>

Emit signal by signal id with details. Read more

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pub fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.

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pub fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec) + Send + Sync,

Connect to the notify signal of the object. Read more

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pub fn connect_notify_local<F>(
 &self,
 name: Option<&str>,
 f: F
) -> SignalHandlerId where
 F: 'static + Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more

source

pub unsafe fn connect_notify_unsafe<F>(
 &self,
 name: Option<&str>,
 f: F
) -> SignalHandlerId where
 F: Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more

source

pub fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more

source

pub fn notify_by_pspec(&self, pspec: &ParamSpec)

Notify that the given property has changed its value. Read more

source

pub fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.

source

pub fn bind_property<O>(
 &'a self,
 source_property: &'a str,
 target: &'a O,
 target_property: &'a str
) -> BindingBuilder<'a> where
 O: ObjectType,

Bind property source_property on this object to the target_property on the target object. Read more

source

pub fn ref_count(&self) -> u32

Returns the strong reference count of this object.

source

impl<T> StaticTypeExt for T where
T: StaticType,

source

pub fn ensure_type()

Ensures that the type has been registered with the type system.

source

impl<T> ToClosureReturnValue for T where
T: ToValue,

source

pub fn to_closure_return_value(&self) -> Option<Value>

source

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

type Owned = T

The resulting type after obtaining ownership.

source

pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

pub fn clone_into(&self, target: &mut T)

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

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T> ToSendValue for T where
T: Send + ToValue + ?Sized,

source

pub fn to_send_value(&self) -> SendValue

Returns a SendValue clone of self.

source

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

source

impl<T> TryFromClosureReturnValue for T where
T: 'static + for<'a> FromValue<'a> + StaticType,

source

pub fn try_from_closure_return_value(v: Option<Value>) -> Result<T, BoolError>

source

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

source

impl<Super, Sub> CanDowncast for Super where
Super: IsA<Super>,
Sub: IsA<Super>,

source

Struct gstreamer_gl::GLContext

Implementations

impl GLContext

pub const NONE: Option<&'static GLContext>

pub fn new(display: &impl IsA<GLDisplay>) -> GLContext

pub fn current() -> Option<GLContext>

pub fn current_gl_api(platform: GLPlatform) -> (GLAPI, u32, u32)

impl GLContext

pub unsafe fn new_wrapped<T: IsA<GLDisplay>>( display: &T, handle: uintptr_t, context_type: GLPlatform, available_apis: GLAPI) -> Option<Self>

pub fn current_gl_context(context_type: GLPlatform) -> uintptr_t

pub fn proc_address_with_platform( context_type: GLPlatform, gl_api: GLAPI, name: &str) -> uintptr_t

Trait Implementations

impl Clone for GLContext

fn clone(&self) -> Self

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

impl Debug for GLContext

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

impl Hash for GLContext

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

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

impl Ord for GLContext

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

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

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

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

impl ParentClassIs for GLContext

type Parent = Object

impl<OT: ObjectType> PartialEq<OT> for GLContext

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

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

impl<OT: ObjectType> PartialOrd<OT> for GLContext

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

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

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

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

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

impl StaticType for GLContext

fn static_type() -> Type

impl Eq for GLContext

impl IsA<Object> for GLContext

impl Send for GLContext

impl Sync for GLContext

Auto Trait Implementations

impl RefUnwindSafe for GLContext

impl Unpin for GLContext

impl UnwindSafe for GLContext

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> Cast for T where T: ObjectType,

fn upcast<T>(self) -> T where T: ObjectType, Self: IsA<T>,

fn upcast_ref<T>(&self) -> &T where T: ObjectType, Self: IsA<T>,

fn downcast<T>(self) -> Result<T, Self> where T: ObjectType, Self: CanDowncast<T>,

fn downcast_ref<T>(&self) -> Option<&T> where T: ObjectType, Self: CanDowncast<T>,

fn dynamic_cast<T>(self) -> Result<T, Self> where T: ObjectType,

fn dynamic_cast_ref<T>(&self) -> Option<&T> where T: ObjectType,

unsafe fn unsafe_cast<T>(self) -> T where T: ObjectType,

unsafe fn unsafe_cast_ref<T>(&self) -> &T where T: ObjectType,

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<O> GObjectExtManualGst for O where O: IsA<Object>,

pub fn try_set_property_from_str( &self, name: &str, value: &str) -> Result<(), BoolError>

pub fn set_property_from_str(&self, name: &str, value: &str)

impl<O> GstObjectExt for O where O: IsA<Object>,

pub fn add_control_binding( &self, binding: &impl IsA<ControlBinding>) -> Result<(), BoolError>

pub fn default_error(&self, error: &Error, debug: Option<&str>)

pub fn control_binding(&self, property_name: &str) -> Option<ControlBinding>

pub fn control_rate(&self) -> Option<ClockTime>

pub fn name(&self) -> GString

pub fn parent(&self) -> Option<Object>

pub fn path_string(&self) -> GString

pub fn value( &self, property_name: &str, timestamp: impl Into<Option<ClockTime>>) -> Option<Value>

pub fn has_active_control_bindings(&self) -> bool

pub fn has_ancestor(&self, ancestor: &impl IsA<Object>) -> bool

pub fn has_as_ancestor(&self, ancestor: &impl IsA<Object>) -> bool

pub fn has_as_parent(&self, parent: &impl IsA<Object>) -> bool

pub fn current_gl_api(platform: GLPlatform) -> (GLAPI, u32, u32 )

pub unsafe fn new_wrapped<T: IsA<GLDisplay>>(
display: &T,
handle: uintptr_t,
context_type: GLPlatform,
available_apis: GLAPI
) -> Option<Self>

pub fn proc_address_with_platform(
context_type: GLPlatform,
gl_api: GLAPI,
name: &str
) -> uintptr_t

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

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

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

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

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

impl<T> Cast for T where
T: ObjectType,

fn upcast<T>(self) -> T where
T: ObjectType,
Self: IsA<T>,

fn upcast_ref<T>(&self) -> &T where
T: ObjectType,
Self: IsA<T>,

fn downcast<T>(self) -> Result<T, Self> where
T: ObjectType,
Self: CanDowncast<T>,

fn downcast_ref<T>(&self) -> Option<&T> where
T: ObjectType,
Self: CanDowncast<T>,

fn dynamic_cast<T>(self) -> Result<T, Self> where
T: ObjectType,

fn dynamic_cast_ref<T>(&self) -> Option<&T> where
T: ObjectType,

unsafe fn unsafe_cast<T>(self) -> T where
T: ObjectType,

unsafe fn unsafe_cast_ref<T>(&self) -> &T where
T: ObjectType,

impl<O> GObjectExtManualGst for O where
O: IsA<Object>,

pub fn try_set_property_from_str(
&self,
name: &str,
value: &str
) -> Result<(), BoolError>

impl<O> GstObjectExt for O where
O: IsA<Object>,

pub fn add_control_binding(
&self,
binding: &impl IsA<ControlBinding>
) -> Result<(), BoolError>

pub fn value(
&self,
property_name: &str,
timestamp: impl Into<Option<ClockTime>>
) -> Option<Value>

pub fn connect_parent_notify<F>(&self, f: F) -> SignalHandlerId where
F: 'static + Fn(&O) + Send + Sync,

impl<O> GstObjectExtManual for O where
O: IsA<Object>,

pub fn connect_deep_notify<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: 'static + Fn(&O, &Object, &ParamSpec) + Send + Sync,

pub fn g_value_array(
&self,
property_name: &str,
timestamp: ClockTime,
interval: ClockTime,
values: &mut [Value ]
) -> Result<(), BoolError>

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

impl<U> IsSubclassableExt for U where
U: IsClass + ParentClassIs,

pub fn parent_class_init<T>(class: &mut Class<U>) where
T: ObjectSubclass,
<U as ParentClassIs>::Parent: IsSubclassable<T>,

pub fn parent_instance_init<T>(instance: &mut InitializingObject<T>) where
T: ObjectSubclass,
<U as ParentClassIs>::Parent: IsSubclassable<T>,

impl<T> ObjectExt for T where
T: ObjectType,

pub fn is<U>(&self) -> bool where
U: StaticType,

pub fn class(&self) -> &Class<T> where
T: IsClass,

pub fn class_of<U>(&self) -> Option<&Class<U>> where
U: IsClass,

pub fn interface<U>(&self) -> Option<InterfaceRef<'_, U>> where
U: IsInterface,

pub fn try_set_property<V>(
&self,
property_name: &str,
value: V
) -> Result<(), BoolError> where
V: ToValue,

pub fn set_property<V>(&self, property_name: &str, value: V) where
V: ToValue,

pub fn try_set_property_from_value(
&self,
property_name: &str,
value: &Value
) -> Result<(), BoolError>

pub fn try_set_properties(
&self,
property_values: &[(&str, &dyn ToValue )]
) -> Result<(), BoolError>

pub fn set_properties(&self, property_values: &[(&str, &dyn ToValue )])

pub fn try_set_properties_from_value(
&self,
property_values: &[(&str, Value )]
) -> Result<(), BoolError>

pub fn set_properties_from_value(&self, property_values: &[(&str, Value )])

pub fn try_property<V>(&self, property_name: &str) -> Result<V, BoolError> where
V: 'static + for<'b> FromValue<'b>,

pub fn property<V>(&self, property_name: &str) -> V where
V: 'static + for<'b> FromValue<'b>,

pub fn try_property_value(
&self,
property_name: &str
) -> Result<Value, BoolError>