Trait gstreamer_editing_services::prelude::TrackElementExt

source · 
pub trait TrackElementExt: 'static {

Show 32 methods    fn add_children_props(
        &self,
        element: &impl IsA<Element>,
        wanted_categories: &[&str],
        blacklist: &[&str],
        whitelist: &[&str]
    );
    fn clamp_control_source(&self, property_name: &str);
    fn edit(
        &self,
        layers: &[Layer],
        mode: EditMode,
        edge: Edge,
        position: u64
    ) -> Result<(), BoolError>;
    fn is_auto_clamp_control_sources(&self) -> bool;
    fn child_property(&self, property_name: &str) -> Option<Value>;
    fn child_property_by_pspec(&self, pspec: impl AsRef<ParamSpec>) -> Value;
    fn control_binding(&self, property_name: &str) -> Option<ControlBinding>;
    fn element(&self) -> Option<Element>;
    fn gnlobject(&self) -> Element;
    fn nleobject(&self) -> Element;
    fn track(&self) -> Option<Track>;
    fn track_type(&self) -> TrackType;
    fn has_internal_source(&self) -> bool;
    fn is_active(&self) -> bool;
    fn is_core(&self) -> bool;
    fn list_children_properties(&self) -> Vec<ParamSpec> ⓘ;
    fn lookup_child(&self, prop_name: &str) -> Option<(Element, ParamSpec)>;
    fn remove_control_binding(
        &self,
        property_name: &str
    ) -> Result<(), BoolError>;
    fn set_active(&self, active: bool) -> bool;
    fn set_auto_clamp_control_sources(&self, auto_clamp: bool);
    fn set_child_property(
        &self,
        property_name: &str,
        value: &Value
    ) -> Result<(), BoolError>;
    fn set_child_property_by_pspec(
        &self,
        pspec: impl AsRef<ParamSpec>,
        value: &Value
    );
    fn set_control_source(
        &self,
        source: &impl IsA<ControlSource>,
        property_name: &str,
        binding_type: &str
    ) -> bool;
    fn set_has_internal_source(&self, has_internal_source: bool) -> bool;
    fn set_track_type(&self, type_: TrackType);
    fn connect_control_binding_added<F: Fn(&Self, &ControlBinding) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_control_binding_removed<F: Fn(&Self, &ControlBinding) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_active_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_auto_clamp_control_sources_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_has_internal_source_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_track_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_track_type_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;

}
Expand description

Trait containing all TrackElement methods.

Implementors

Operation, Source, TrackElement

Required Methods§

Adds all the properties of a gst::Element that match the criteria as children properties of the track element. If the name of element’s gst::ElementFactory is not in blacklist, and the factory’s GST_ELEMENT_METADATA_KLASS contains at least one member of wanted_categories (e.g. GST_ELEMENT_FACTORY_KLASS_DECODER), then all the properties of element that are also in whitelist are added as child properties of self using TimelineElementExt::add_child_property().

This is intended to be used by subclasses when constructing.

element

The child object to retrieve properties from

wanted_categories

An array of element factory “klass” categories to whitelist, or None to accept all categories

blacklist

A blacklist of element factory names, or None to not blacklist any element factory

whitelist

A whitelist of element property names, or None to whitelist all writeable properties

Available on crate feature v1_18 only.

Clamp the GstTimedValueControlSource for the specified child property to lie between the in-point and out-point of the element. The out-point is the GES_TIMELINE_ELEMENT_END of the element translated from the timeline coordinates to the internal source coordinates of the element.

If the property does not have a GstTimedValueControlSource set by set_control_source(), nothing happens. Otherwise, if a timed value for the control source lies before the in-point of the element, or after its out-point, then it will be removed. At the in-point and out-point times, a new interpolated value will be placed.

property_name

The name of the child property to clamp the control source of

Edits the element within its track.

Deprecated since 1.18

use ges_timeline_element_edit instead.

layers

A whitelist of layers where the edit can be performed, None allows all layers in the timeline

mode

The edit mode

edge

The edge of self where the edit should occur

position

The edit position: a new location for the edge of self (in nanoseconds)

Returns

true if the edit of self completed, false on failure.

Available on crate feature v1_18 only.

Gets auto-clamp-control-sources.

Returns

Whether the control sources for the child properties of self are automatically clamped.

In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling [glib::Value::unset()][crate::glib::Value::unset()].

Gets a property of a GstElement contained in self.

Note that ges_track_element_get_child_property is really intended for language bindings, ges_track_element_get_child_properties is much more convenient for C programming.

Deprecated

Use ges_timeline_element_get_child_property

property_name

The name of the property

Returns

true if the property was found, false otherwise.

value

return location for the property value, it will be initialized if it is initialized with 0

Gets a property of a child of self.

Deprecated

Use ges_timeline_element_get_child_property_by_pspec

pspec

The glib::ParamSpec that specifies the property you want to get

Returns
value

return location for the value

Available on crate feature v1_18 only.
Available on crate feature v1_18 only.
Available on crate feature v1_18 only.
Available on crate feature v1_18 only.
Available on crate feature v1_18 only.
Available on crate feature v1_18 only.

Implementors§