gstreamer-rs/gstreamer/src/auto/device.rs

// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::Caps;
use crate::Element;
use crate::Object;
use crate::Structure;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::mem::transmute;

glib::glib_wrapper! {
    pub struct Device(Object<ffi::GstDevice, ffi::GstDeviceClass>) @extends Object;

    match fn {
        get_type => || ffi::gst_device_get_type(),
    }
}

unsafe impl Send for Device {}
unsafe impl Sync for Device {}

pub const NONE_DEVICE: Option<&Device> = None;

pub trait DeviceExt: 'static {
    fn create_element(&self, name: Option<&str>) -> Result<Element, glib::BoolError>;

    fn get_caps(&self) -> Option<Caps>;

    fn get_device_class(&self) -> glib::GString;

    fn get_display_name(&self) -> glib::GString;

    fn get_properties(&self) -> Option<Structure>;

    fn has_classes(&self, classes: &str) -> bool;

    fn has_classesv(&self, classes: &[&str]) -> bool;

    fn reconfigure_element<P: IsA<Element>>(
        &self,
        element: &P,
    ) -> Result<(), glib::error::BoolError>;

    fn connect_removed<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<Device>> DeviceExt for O {
    fn create_element(&self, name: Option<&str>) -> Result<Element, glib::BoolError> {
        unsafe {
            Option::<_>::from_glib_none(ffi::gst_device_create_element(
                self.as_ref().to_glib_none().0,
                name.to_glib_none().0,
            ))
            .ok_or_else(|| glib::glib_bool_error!("Failed to create element for device"))
        }
    }

    fn get_caps(&self) -> Option<Caps> {
        unsafe { from_glib_full(ffi::gst_device_get_caps(self.as_ref().to_glib_none().0)) }
    }

    fn get_device_class(&self) -> glib::GString {
        unsafe {
            from_glib_full(ffi::gst_device_get_device_class(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_display_name(&self) -> glib::GString {
        unsafe {
            from_glib_full(ffi::gst_device_get_display_name(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_properties(&self) -> Option<Structure> {
        unsafe {
            from_glib_full(ffi::gst_device_get_properties(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn has_classes(&self, classes: &str) -> bool {
        unsafe {
            from_glib(ffi::gst_device_has_classes(
                self.as_ref().to_glib_none().0,
                classes.to_glib_none().0,
            ))
        }
    }

    fn has_classesv(&self, classes: &[&str]) -> bool {
        unsafe {
            from_glib(ffi::gst_device_has_classesv(
                self.as_ref().to_glib_none().0,
                classes.to_glib_none().0,
            ))
        }
    }

    fn reconfigure_element<P: IsA<Element>>(
        &self,
        element: &P,
    ) -> Result<(), glib::error::BoolError> {
        unsafe {
            glib::glib_result_from_gboolean!(
                ffi::gst_device_reconfigure_element(
                    self.as_ref().to_glib_none().0,
                    element.as_ref().to_glib_none().0
                ),
                "Failed to reconfigure the element to use this device"
            )
        }
    }

    fn connect_removed<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn removed_trampoline<P, F: Fn(&P) + Send + Sync + 'static>(
            this: *mut ffi::GstDevice,
            f: glib::ffi::gpointer,
        ) where
            P: IsA<Device>,
        {
            let f: &F = &*(f as *const F);
            f(&Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"removed\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    removed_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}