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use glib;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib::GString;
use glib_sys;
use gst_sys;
use std::boxed::Box as Box_;
use std::mem::transmute;
use Caps;
use Element;
use Object;
use Structure;
glib_wrapper! {
pub struct Device(Object<gst_sys::GstDevice, gst_sys::GstDeviceClass, DeviceClass>) @extends Object;
match fn {
get_type => || gst_sys::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) -> GString;
fn get_display_name(&self) -> 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(gst_sys::gst_device_create_element(
self.as_ref().to_glib_none().0,
name.to_glib_none().0,
))
.ok_or_else(|| glib_bool_error!("Failed to create element for device"))
}
}
fn get_caps(&self) -> Option<Caps> {
unsafe { from_glib_full(gst_sys::gst_device_get_caps(self.as_ref().to_glib_none().0)) }
}
fn get_device_class(&self) -> GString {
unsafe {
from_glib_full(gst_sys::gst_device_get_device_class(
self.as_ref().to_glib_none().0,
))
}
}
fn get_display_name(&self) -> GString {
unsafe {
from_glib_full(gst_sys::gst_device_get_display_name(
self.as_ref().to_glib_none().0,
))
}
}
fn get_properties(&self) -> Option<Structure> {
unsafe {
from_glib_full(gst_sys::gst_device_get_properties(
self.as_ref().to_glib_none().0,
))
}
}
fn has_classes(&self, classes: &str) -> bool {
unsafe {
from_glib(gst_sys::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(gst_sys::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_result_from_gboolean!(
gst_sys::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 gst_sys::GstDevice,
f: glib_sys::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),
)
}
}
}