mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
synced 2024-05-19 08:48:09 +00:00
281 lines
9.4 KiB
Rust
281 lines
9.4 KiB
Rust
// Take a look at the license at the top of the repository in the LICENSE file.
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use std::mem::transmute;
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use glib::{prelude::*, subclass::prelude::*, translate::*};
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use crate::RTSPMediaFactory;
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pub trait RTSPMediaFactoryImpl: RTSPMediaFactoryImplExt + ObjectImpl + Send + Sync {
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fn gen_key(&self, url: &gst_rtsp::RTSPUrl) -> Option<glib::GString> {
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self.parent_gen_key(url)
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}
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fn create_element(&self, url: &gst_rtsp::RTSPUrl) -> Option<gst::Element> {
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self.parent_create_element(url)
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}
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fn construct(&self, url: &gst_rtsp::RTSPUrl) -> Option<crate::RTSPMedia> {
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self.parent_construct(url)
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}
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fn create_pipeline(&self, media: &crate::RTSPMedia) -> Option<gst::Pipeline> {
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self.parent_create_pipeline(media)
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}
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fn configure(&self, media: &crate::RTSPMedia) {
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self.parent_configure(media)
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}
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fn media_constructed(&self, media: &crate::RTSPMedia) {
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self.parent_media_constructed(media)
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}
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fn media_configure(&self, media: &crate::RTSPMedia) {
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self.parent_media_configure(media)
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}
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}
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mod sealed {
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pub trait Sealed {}
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impl<T: super::RTSPMediaFactoryImplExt> Sealed for T {}
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}
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pub trait RTSPMediaFactoryImplExt: sealed::Sealed + ObjectSubclass {
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fn parent_gen_key(&self, url: &gst_rtsp::RTSPUrl) -> Option<glib::GString> {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstRTSPMediaFactoryClass;
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(*parent_class)
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.gen_key
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.map(|f| {
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from_glib_full(f(
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self.obj()
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.unsafe_cast_ref::<RTSPMediaFactory>()
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.to_glib_none()
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.0,
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url.to_glib_none().0,
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))
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})
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.unwrap_or(None)
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}
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}
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fn parent_create_element(&self, url: &gst_rtsp::RTSPUrl) -> Option<gst::Element> {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstRTSPMediaFactoryClass;
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(*parent_class)
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.create_element
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.map(|f| {
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from_glib_none(f(
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self.obj()
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.unsafe_cast_ref::<RTSPMediaFactory>()
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.to_glib_none()
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.0,
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url.to_glib_none().0,
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))
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})
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.unwrap_or(None)
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}
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}
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fn parent_construct(&self, url: &gst_rtsp::RTSPUrl) -> Option<crate::RTSPMedia> {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstRTSPMediaFactoryClass;
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(*parent_class)
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.construct
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.map(|f| {
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from_glib_full(f(
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self.obj()
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.unsafe_cast_ref::<RTSPMediaFactory>()
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.to_glib_none()
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.0,
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url.to_glib_none().0,
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))
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})
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.unwrap_or(None)
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}
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}
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fn parent_create_pipeline(&self, media: &crate::RTSPMedia) -> Option<gst::Pipeline> {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstRTSPMediaFactoryClass;
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(*parent_class)
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.create_pipeline
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.map(|f| {
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let ptr = f(
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self.obj()
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.unsafe_cast_ref::<RTSPMediaFactory>()
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.to_glib_none()
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.0,
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media.to_glib_none().0,
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) as *mut gst::ffi::GstPipeline;
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// See https://gitlab.freedesktop.org/gstreamer/gst-rtsp-server/merge_requests/109
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if glib::gobject_ffi::g_object_is_floating(ptr as *mut _) != glib::ffi::GFALSE {
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glib::gobject_ffi::g_object_ref_sink(ptr as *mut _);
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}
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from_glib_none(ptr)
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})
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.unwrap_or(None)
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}
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}
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fn parent_configure(&self, media: &crate::RTSPMedia) {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstRTSPMediaFactoryClass;
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if let Some(f) = (*parent_class).configure {
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f(
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self.obj()
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.unsafe_cast_ref::<RTSPMediaFactory>()
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.to_glib_none()
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.0,
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media.to_glib_none().0,
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);
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}
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}
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}
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fn parent_media_constructed(&self, media: &crate::RTSPMedia) {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstRTSPMediaFactoryClass;
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if let Some(f) = (*parent_class).media_constructed {
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f(
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self.obj()
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.unsafe_cast_ref::<RTSPMediaFactory>()
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.to_glib_none()
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.0,
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media.to_glib_none().0,
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);
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}
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}
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}
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fn parent_media_configure(&self, media: &crate::RTSPMedia) {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstRTSPMediaFactoryClass;
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if let Some(f) = (*parent_class).media_configure {
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f(
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self.obj()
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.unsafe_cast_ref::<RTSPMediaFactory>()
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.to_glib_none()
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.0,
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media.to_glib_none().0,
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);
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}
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}
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}
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}
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impl<T: RTSPMediaFactoryImpl> RTSPMediaFactoryImplExt for T {}
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unsafe impl<T: RTSPMediaFactoryImpl> IsSubclassable<T> for RTSPMediaFactory {
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fn class_init(klass: &mut glib::Class<Self>) {
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Self::parent_class_init::<T>(klass);
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let klass = klass.as_mut();
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klass.gen_key = Some(factory_gen_key::<T>);
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klass.create_element = Some(factory_create_element::<T>);
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klass.construct = Some(factory_construct::<T>);
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klass.create_pipeline = Some(factory_create_pipeline::<T>);
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klass.configure = Some(factory_configure::<T>);
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klass.media_constructed = Some(factory_media_constructed::<T>);
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klass.media_configure = Some(factory_media_configure::<T>);
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}
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}
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unsafe extern "C" fn factory_gen_key<T: RTSPMediaFactoryImpl>(
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ptr: *mut ffi::GstRTSPMediaFactory,
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url: *const gst_rtsp::ffi::GstRTSPUrl,
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) -> *mut std::os::raw::c_char {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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imp.gen_key(&from_glib_borrow(url)).into_glib_ptr()
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}
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unsafe extern "C" fn factory_create_element<T: RTSPMediaFactoryImpl>(
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ptr: *mut ffi::GstRTSPMediaFactory,
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url: *const gst_rtsp::ffi::GstRTSPUrl,
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) -> *mut gst::ffi::GstElement {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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let element = imp.create_element(&from_glib_borrow(url)).into_glib_ptr();
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glib::gobject_ffi::g_object_force_floating(element as *mut _);
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element
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}
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unsafe extern "C" fn factory_construct<T: RTSPMediaFactoryImpl>(
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ptr: *mut ffi::GstRTSPMediaFactory,
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url: *const gst_rtsp::ffi::GstRTSPUrl,
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) -> *mut ffi::GstRTSPMedia {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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imp.construct(&from_glib_borrow(url)).into_glib_ptr()
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}
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unsafe extern "C" fn factory_create_pipeline<T: RTSPMediaFactoryImpl>(
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ptr: *mut ffi::GstRTSPMediaFactory,
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media: *mut ffi::GstRTSPMedia,
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) -> *mut gst::ffi::GstElement {
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static PIPELINE_QUARK: std::sync::OnceLock<glib::Quark> = std::sync::OnceLock::new();
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let pipeline_quark =
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PIPELINE_QUARK.get_or_init(|| glib::Quark::from_str("gstreamer-rs-rtsp-media-pipeline"));
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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let pipeline: *mut gst::ffi::GstPipeline = imp
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.create_pipeline(&from_glib_borrow(media))
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.into_glib_ptr();
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// FIXME We somehow need to ensure the pipeline actually stays alive...
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glib::gobject_ffi::g_object_set_qdata_full(
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media as *mut _,
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pipeline_quark.into_glib(),
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pipeline as *mut _,
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Some(transmute::<_, unsafe extern "C" fn(glib::ffi::gpointer)>(
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glib::gobject_ffi::g_object_unref as *const (),
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)),
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);
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pipeline as *mut _
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}
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unsafe extern "C" fn factory_configure<T: RTSPMediaFactoryImpl>(
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ptr: *mut ffi::GstRTSPMediaFactory,
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media: *mut ffi::GstRTSPMedia,
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) {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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imp.configure(&from_glib_borrow(media));
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}
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unsafe extern "C" fn factory_media_constructed<T: RTSPMediaFactoryImpl>(
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ptr: *mut ffi::GstRTSPMediaFactory,
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media: *mut ffi::GstRTSPMedia,
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) {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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imp.media_constructed(&from_glib_borrow(media));
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}
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unsafe extern "C" fn factory_media_configure<T: RTSPMediaFactoryImpl>(
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ptr: *mut ffi::GstRTSPMediaFactory,
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media: *mut ffi::GstRTSPMedia,
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) {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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imp.media_configure(&from_glib_borrow(media));
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}
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