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use glib::prelude::*;
use glib::translate::*;
use gst::subclass::prelude::*;
use crate::Aggregator;
use crate::AggregatorPad;
pub trait AggregatorPadImpl: AggregatorPadImplExt + PadImpl {
fn flush(
&self,
aggregator_pad: &Self::Type,
aggregator: &Aggregator,
) -> Result<gst::FlowSuccess, gst::FlowError> {
self.parent_flush(aggregator_pad, aggregator)
}
fn skip_buffer(
&self,
aggregator_pad: &Self::Type,
aggregator: &Aggregator,
buffer: &gst::Buffer,
) -> bool {
self.parent_skip_buffer(aggregator_pad, aggregator, buffer)
}
}
pub trait AggregatorPadImplExt: ObjectSubclass {
fn parent_flush(
&self,
aggregator_pad: &Self::Type,
aggregator: &Aggregator,
) -> Result<gst::FlowSuccess, gst::FlowError>;
fn parent_skip_buffer(
&self,
aggregator_pad: &Self::Type,
aggregator: &Aggregator,
buffer: &gst::Buffer,
) -> bool;
}
impl<T: AggregatorPadImpl> AggregatorPadImplExt for T {
fn parent_flush(
&self,
aggregator_pad: &Self::Type,
aggregator: &Aggregator,
) -> Result<gst::FlowSuccess, gst::FlowError> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstAggregatorPadClass;
(*parent_class)
.flush
.map(|f| {
gst::FlowSuccess::try_from_glib(f(
aggregator_pad
.unsafe_cast_ref::<AggregatorPad>()
.to_glib_none()
.0,
aggregator.to_glib_none().0,
))
})
.unwrap_or(Ok(gst::FlowSuccess::Ok))
}
}
fn parent_skip_buffer(
&self,
aggregator_pad: &Self::Type,
aggregator: &Aggregator,
buffer: &gst::Buffer,
) -> bool {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstAggregatorPadClass;
(*parent_class)
.skip_buffer
.map(|f| {
from_glib(f(
aggregator_pad
.unsafe_cast_ref::<AggregatorPad>()
.to_glib_none()
.0,
aggregator.to_glib_none().0,
buffer.to_glib_none().0,
))
})
.unwrap_or(false)
}
}
}
unsafe impl<T: AggregatorPadImpl> IsSubclassable<T> for AggregatorPad {
fn class_init(klass: &mut glib::Class<Self>) {
<gst::Pad as IsSubclassable<T>>::class_init(klass);
let klass = klass.as_mut();
klass.flush = Some(aggregator_pad_flush::<T>);
klass.skip_buffer = Some(aggregator_pad_skip_buffer::<T>);
}
fn instance_init(instance: &mut glib::subclass::InitializingObject<T>) {
<gst::Pad as IsSubclassable<T>>::instance_init(instance);
}
}
unsafe extern "C" fn aggregator_pad_flush<T: AggregatorPadImpl>(
ptr: *mut ffi::GstAggregatorPad,
aggregator: *mut ffi::GstAggregator,
) -> gst::ffi::GstFlowReturn {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.impl_();
let wrap: Borrowed<AggregatorPad> = from_glib_borrow(ptr);
let res: gst::FlowReturn = imp
.flush(wrap.unsafe_cast_ref(), &from_glib_borrow(aggregator))
.into();
res.into_glib()
}
unsafe extern "C" fn aggregator_pad_skip_buffer<T: AggregatorPadImpl>(
ptr: *mut ffi::GstAggregatorPad,
aggregator: *mut ffi::GstAggregator,
buffer: *mut gst::ffi::GstBuffer,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.impl_();
let wrap: Borrowed<AggregatorPad> = from_glib_borrow(ptr);
imp.skip_buffer(
wrap.unsafe_cast_ref(),
&from_glib_borrow(aggregator),
&from_glib_borrow(buffer),
)
.into_glib()
}