video: Add bindings for VideoSink

Gir_GstVideo.toml

@@ -64,6 +64,7 @@ manual = [
     "Gst.FlowReturn",
     "Gst.TagList",
     "Gst.TagMergeMode",
+    "GstBase.BaseSink",
     "GstBase.BaseTransform",
     "GstVideo.VideoCodecState",
     "GstVideo.VideoCodecFrame",
@@ -247,4 +248,13 @@ name = "GstVideo.VideoFormat"
 status = "generate"
 
     [[object.derive]]
-    name = "Debug, Eq, PartialEq, Hash"
+    name = "Debug, Eq, PartialEq, Hash"
+
+[[object]]
+name = "GstVideo.VideoSink"
+status = "generate"
+
+    [[object.function]]
+    name = "center_rect"
+    # Implemented in video_rectangle
+    ignore = true

gstreamer-video/src/auto/mod.rs

@@ -20,6 +20,10 @@ mod video_overlay;
 pub use self::video_overlay::VideoOverlayExt;
 pub use self::video_overlay::{VideoOverlay, NONE_VIDEO_OVERLAY};
 
+mod video_sink;
+pub use self::video_sink::VideoSinkExt;
+pub use self::video_sink::{VideoSink, VideoSinkClass, NONE_VIDEO_SINK};
+
 mod enums;
 #[cfg(any(feature = "v1_18", feature = "dox"))]
 pub use self::enums::VideoAFDSpec;
@@ -63,4 +67,5 @@ pub mod traits {
     pub use super::VideoDecoderExt;
     pub use super::VideoEncoderExt;
     pub use super::VideoOverlayExt;
+    pub use super::VideoSinkExt;
 }

gstreamer-video/src/auto/versions.txt

@@ -1,2 +1,2 @@
 Generated by gir (https://github.com/gtk-rs/gir @ 882e09b)
-from gir-files (https://github.com/gtk-rs/gir-files @ 38361831)
+from gir-files (https://github.com/gtk-rs/gir-files @ 1a54d3bc)

gstreamer-video/src/auto/video_sink.rs

@@ -0,0 +1,99 @@
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// DO NOT EDIT
+
+use glib::object::Cast;
+use glib::object::IsA;
+use glib::signal::connect_raw;
+use glib::signal::SignalHandlerId;
+use glib::translate::*;
+use glib::StaticType;
+use glib::Value;
+use glib_sys;
+use gobject_sys;
+use gst;
+use gst_base;
+use gst_video_sys;
+use std::boxed::Box as Box_;
+use std::mem::transmute;
+
+glib_wrapper! {
+    pub struct VideoSink(Object<gst_video_sys::GstVideoSink, gst_video_sys::GstVideoSinkClass, VideoSinkClass>) @extends gst_base::BaseSink, gst::Element, gst::Object;
+
+    match fn {
+        get_type => || gst_video_sys::gst_video_sink_get_type(),
+    }
+}
+
+unsafe impl Send for VideoSink {}
+unsafe impl Sync for VideoSink {}
+
+pub const NONE_VIDEO_SINK: Option<&VideoSink> = None;
+
+pub trait VideoSinkExt: 'static {
+    fn get_property_show_preroll_frame(&self) -> bool;
+
+    fn set_property_show_preroll_frame(&self, show_preroll_frame: bool);
+
+    fn connect_property_show_preroll_frame_notify<F: Fn(&Self) + Send + Sync + 'static>(
+        &self,
+        f: F,
+    ) -> SignalHandlerId;
+}
+
+impl<O: IsA<VideoSink>> VideoSinkExt for O {
+    fn get_property_show_preroll_frame(&self) -> bool {
+        unsafe {
+            let mut value = Value::from_type(<bool as StaticType>::static_type());
+            gobject_sys::g_object_get_property(
+                self.to_glib_none().0 as *mut gobject_sys::GObject,
+                b"show-preroll-frame\0".as_ptr() as *const _,
+                value.to_glib_none_mut().0,
+            );
+            value
+                .get()
+                .expect("Return Value for property `show-preroll-frame` getter")
+                .unwrap()
+        }
+    }
+
+    fn set_property_show_preroll_frame(&self, show_preroll_frame: bool) {
+        unsafe {
+            gobject_sys::g_object_set_property(
+                self.to_glib_none().0 as *mut gobject_sys::GObject,
+                b"show-preroll-frame\0".as_ptr() as *const _,
+                Value::from(&show_preroll_frame).to_glib_none().0,
+            );
+        }
+    }
+
+    fn connect_property_show_preroll_frame_notify<F: Fn(&Self) + Send + Sync + 'static>(
+        &self,
+        f: F,
+    ) -> SignalHandlerId {
+        unsafe extern "C" fn notify_show_preroll_frame_trampoline<
+            P,
+            F: Fn(&P) + Send + Sync + 'static,
+        >(
+            this: *mut gst_video_sys::GstVideoSink,
+            _param_spec: glib_sys::gpointer,
+            f: glib_sys::gpointer,
+        ) where
+            P: IsA<VideoSink>,
+        {
+            let f: &F = &*(f as *const F);
+            f(&VideoSink::from_glib_borrow(this).unsafe_cast_ref())
+        }
+        unsafe {
+            let f: Box_<F> = Box_::new(f);
+            connect_raw(
+                self.as_ptr() as *mut _,
+                b"notify::show-preroll-frame\0".as_ptr() as *const _,
+                Some(transmute::<_, unsafe extern "C" fn()>(
+                    notify_show_preroll_frame_trampoline::<Self, F> as *const (),
+                )),
+                Box_::into_raw(f),
+            )
+        }
+    }
+}

gstreamer-video/src/subclass/mod.rs

@@ -9,8 +9,10 @@
 
 mod video_decoder;
 mod video_encoder;
+mod video_sink;
 
 pub mod prelude {
     pub use super::video_decoder::{VideoDecoderImpl, VideoDecoderImplExt};
     pub use super::video_encoder::{VideoEncoderImpl, VideoEncoderImplExt};
+    pub use super::video_sink::{VideoSinkImpl, VideoSinkImplExt};
 }

gstreamer-video/src/subclass/video_sink.rs

@@ -0,0 +1,93 @@
+// Copyright (C) 2020 François Laignel <fengalin@free.fr>
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use gst_sys;
+use gst_video_sys;
+
+use glib::translate::*;
+
+use glib::subclass::prelude::*;
+use gst;
+use gst::subclass::prelude::*;
+use gst_base::subclass::prelude::*;
+
+use VideoSink;
+use VideoSinkClass;
+
+pub trait VideoSinkImpl:
+    VideoSinkImplExt + BaseSinkImpl + ElementImpl + Send + Sync + 'static
+{
+    fn show_frame(
+        &self,
+        element: &VideoSink,
+        buffer: &gst::Buffer,
+    ) -> Result<gst::FlowSuccess, gst::FlowError> {
+        self.parent_show_frame(element, buffer)
+    }
+}
+
+pub trait VideoSinkImplExt {
+    fn parent_show_frame(
+        &self,
+        element: &VideoSink,
+        buffer: &gst::Buffer,
+    ) -> Result<gst::FlowSuccess, gst::FlowError>;
+}
+
+impl<T: VideoSinkImpl + ObjectImpl> VideoSinkImplExt for T {
+    fn parent_show_frame(
+        &self,
+        element: &VideoSink,
+        buffer: &gst::Buffer,
+    ) -> 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::GstVideoSinkClass;
+            (*parent_class)
+                .show_frame
+                .map(|f| {
+                    gst::FlowReturn::from_glib(f(element.to_glib_none().0, buffer.to_glib_none().0))
+                })
+                .unwrap_or(gst::FlowReturn::Error)
+                .into_result()
+        }
+    }
+}
+
+unsafe impl<T: ObjectSubclass + VideoSinkImpl> IsSubclassable<T> for VideoSinkClass
+where
+    <T as ObjectSubclass>::Instance: PanicPoison,
+{
+    fn override_vfuncs(&mut self) {
+        <gst_base::BaseSinkClass as IsSubclassable<T>>::override_vfuncs(self);
+        unsafe {
+            let klass = &mut *(self as *mut Self as *mut gst_video_sys::GstVideoSinkClass);
+            klass.show_frame = Some(video_sink_show_frame::<T>);
+        }
+    }
+}
+
+unsafe extern "C" fn video_sink_show_frame<T: ObjectSubclass>(
+    ptr: *mut gst_video_sys::GstVideoSink,
+    buffer: *mut gst_sys::GstBuffer,
+) -> gst_sys::GstFlowReturn
+where
+    T: VideoSinkImpl,
+    T::Instance: PanicPoison,
+{
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: Borrowed<VideoSink> = from_glib_borrow(ptr);
+    let buffer = from_glib_borrow(buffer);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), gst::FlowReturn::Error, {
+        imp.show_frame(&wrap, &buffer).into()
+    })
+    .to_glib()
+}