gstreamer_rtsp_server/subclass/
rtsp_onvif_media_factory.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use glib::{prelude::*, subclass::prelude::*, translate::*};
4
5use super::prelude::*;
6use crate::{ffi, RTSPOnvifMediaFactory};
7
8pub trait RTSPOnvifMediaFactoryImpl:
9    RTSPMediaFactoryImpl + ObjectSubclass<Type: IsA<RTSPOnvifMediaFactory>> + Send + Sync
10{
11    fn has_backchannel_support(&self) -> bool {
12        self.parent_has_backchannel_support()
13    }
14}
15
16pub trait RTSPOnvifMediaFactoryImplExt: RTSPOnvifMediaFactoryImpl {
17    fn parent_has_backchannel_support(&self) -> bool {
18        unsafe {
19            let data = Self::type_data();
20            let parent_class =
21                data.as_ref().parent_class() as *mut ffi::GstRTSPOnvifMediaFactoryClass;
22            (*parent_class)
23                .has_backchannel_support
24                .map(|f| {
25                    from_glib(f(self
26                        .obj()
27                        .unsafe_cast_ref::<RTSPOnvifMediaFactory>()
28                        .to_glib_none()
29                        .0))
30                })
31                .unwrap_or(false)
32        }
33    }
34}
35
36impl<T: RTSPOnvifMediaFactoryImpl> RTSPOnvifMediaFactoryImplExt for T {}
37
38unsafe impl<T: RTSPOnvifMediaFactoryImpl> IsSubclassable<T> for RTSPOnvifMediaFactory {
39    fn class_init(klass: &mut glib::Class<Self>) {
40        Self::parent_class_init::<T>(klass);
41        let klass = klass.as_mut();
42        klass.has_backchannel_support = Some(factory_has_backchannel_support::<T>);
43    }
44}
45
46unsafe extern "C" fn factory_has_backchannel_support<T: RTSPOnvifMediaFactoryImpl>(
47    ptr: *mut ffi::GstRTSPOnvifMediaFactory,
48) -> glib::ffi::gboolean {
49    let instance = &*(ptr as *mut T::Instance);
50    let imp = instance.imp();
51
52    imp.has_backchannel_support().into_glib()
53}
gstreamer_rtsp_server/subclass/rtsp_onvif_media_factory.rs

gstreamer_rtsp_server/subclass/
rtsp_onvif_media_factory.rs
