gstreamer-rs/gstreamer-video/src/video_aggregator_convert_pad.rs

67 lines
2.2 KiB
Rust

use std::mem::transmute;
use glib::{
object::IsA,
signal::{connect_raw, SignalHandlerId},
translate::*,
Cast,
};
use crate::auto::VideoAggregatorConvertPad;
pub trait VideoAggregatorConvertPadExtManual: 'static {
#[doc(alias = "converter-config")]
fn converter_config(&self) -> Option<crate::VideoConverterConfig>;
#[doc(alias = "converter-config")]
fn set_converter_config(&self, converter_config: Option<&crate::VideoConverterConfig>);
#[doc(alias = "converter-config")]
fn connect_converter_config_notify<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId;
}
impl<O: IsA<VideoAggregatorConvertPad>> VideoAggregatorConvertPadExtManual for O {
fn converter_config(&self) -> Option<crate::VideoConverterConfig> {
glib::ObjectExt::property::<Option<gst::Structure>>(self.as_ref(), "converter-config")
.map(|c| c.try_into().unwrap())
}
fn set_converter_config(&self, converter_config: Option<&crate::VideoConverterConfig>) {
glib::ObjectExt::set_property(
self.as_ref(),
"converter-config",
converter_config.map(|s| s.as_ref()),
)
}
fn connect_converter_config_notify<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId {
unsafe extern "C" fn notify_converter_config_trampoline<
P: IsA<VideoAggregatorConvertPad>,
F: Fn(&P) + Send + Sync + 'static,
>(
this: *mut ffi::GstVideoAggregatorConvertPad,
_param_spec: glib::ffi::gpointer,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(VideoAggregatorConvertPad::from_glib_borrow(this).unsafe_cast_ref())
}
unsafe {
let f: Box<F> = Box::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"notify::converter-config\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
notify_converter_config_trampoline::<Self, F> as *const (),
)),
Box::into_raw(f),
)
}
}
}