webrtc: Generate DataChannel bindings

Gir_GstWebRTC.toml

@@ -38,6 +38,8 @@ generate = [
 ]
 
 manual = [
+    "GLib.Bytes",
+    "GLib.Error",
     "GObject.Object",
     "Gst.Structure",
     "GstSdp.SDPMessage",
@@ -77,3 +79,13 @@ final_type = true
     name = "new"
     # takes ownership of SDP message
     ignore = true
+
+[[object]]
+name = "GstWebRTC.WebRTCDataChannel"
+status = "generate"
+final_type = true
+
+    [[object.function]]
+    name = "on_error"
+    # takes ownership of SDP message
+    ignore = true

gstreamer-webrtc/src/lib.rs

@@ -35,6 +35,8 @@ macro_rules! skip_assert_initialized {
 mod auto;
 pub use auto::*;
 
+#[cfg(any(feature = "v1_18", feature = "dox"))]
+mod web_rtc_data_channel;
 mod web_rtc_session_description;
 
 // Re-export all the traits in a prelude module, so that applications

gstreamer-webrtc/src/web_rtc_data_channel.rs

@@ -0,0 +1,25 @@
+// Copyright (C) 2020 Sebastian Dröge <sebastian@centricular.com>
+//
+// 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 glib::translate::*;
+use gst_web_rtc_sys;
+use WebRTCDataChannel;
+
+use std::mem;
+
+impl WebRTCDataChannel {
+    pub fn on_error(&self, error: glib::Error) {
+        let error = mem::ManuallyDrop::new(error);
+        unsafe {
+            gst_web_rtc_sys::gst_webrtc_data_channel_on_error(
+                self.to_glib_none().0,
+                mut_override(error.to_glib_none().0),
+            );
+        }
+    }
+}