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video: Add support for VideoDecoder::drain() vfunc

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This commit is contained in:
Sebastian Dröge 2019-09-13 23:02:41 +03:00
parent bc42a245ce
commit ac15298d49
1 changed files with 38 additions and 0 deletions
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38
gstreamer-video/src/subclass/video_decoder.rs
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@ -45,6 +45,10 @@ pub trait VideoDecoderImpl: VideoDecoderImplExt + ElementImpl + Send + Sync + 's
self.parent_finish(element)
}
fn drain(&self, element: &VideoDecoder) -> Result<gst::FlowSuccess, gst::FlowError> {
self.parent_drain(element)
}
fn set_format(
&self,
element: &VideoDecoder,
@ -127,6 +131,8 @@ pub trait VideoDecoderImplExt {
fn parent_finish(&self, element: &VideoDecoder) -> Result<gst::FlowSuccess, gst::FlowError>;
fn parent_drain(&self, element: &VideoDecoder) -> Result<gst::FlowSuccess, gst::FlowError>;
fn parent_set_format(
&self,
element: &VideoDecoder,
@ -276,6 +282,19 @@ impl<T: VideoDecoderImpl + ObjectImpl> VideoDecoderImplExt for T {
}
}
fn parent_drain(&self, element: &VideoDecoder) -> Result<gst::FlowSuccess, gst::FlowError> {
unsafe {
let data = self.get_type_data();
let parent_class =
data.as_ref().get_parent_class() as *mut gst_video_sys::GstVideoDecoderClass;
(*parent_class)
.drain
.map(|f| gst::FlowReturn::from_glib(f(element.to_glib_none().0)))
.unwrap_or(gst::FlowReturn::Ok)
.into_result()
}
}
fn parent_set_format(
&self,
element: &VideoDecoder,
@ -501,6 +520,7 @@ where
klass.start = Some(video_decoder_start::<T>);
klass.stop = Some(video_decoder_stop::<T>);
klass.finish = Some(video_decoder_finish::<T>);
klass.drain = Some(video_decoder_drain::<T>);
klass.set_format = Some(video_decoder_set_format::<T>);
klass.parse = Some(video_decoder_parse::<T>);
klass.handle_frame = Some(video_decoder_handle_frame::<T>);
@ -631,6 +651,24 @@ where
.to_glib()
}
unsafe extern "C" fn video_decoder_drain<T: ObjectSubclass>(
ptr: *mut gst_video_sys::GstVideoDecoder,
) -> gst_sys::GstFlowReturn
where
T: VideoDecoderImpl,
T::Instance: PanicPoison,
{
glib_floating_reference_guard!(ptr);
let instance = &*(ptr as *mut T::Instance);
let imp = instance.get_impl();
let wrap: VideoDecoder = from_glib_borrow(ptr);
gst_panic_to_error!(&wrap, &instance.panicked(), gst::FlowReturn::Error, {
imp.drain(&wrap).into()
})
.to_glib()
}
unsafe extern "C" fn video_decoder_set_format<T: ObjectSubclass>(
ptr: *mut gst_video_sys::GstVideoDecoder,
state: *mut gst_video_sys::GstVideoCodecState,