public class Dino.Plugins.Rtp.VideoWidget : Gtk.Bin, Dino.Plugins.VideoCallWidget { private static uint last_id = 0; public uint id { get; private set; } public Gst.Element element { get; private set; } public Gtk.Widget widget { get; private set; } public Plugin plugin { get; private set; } public Gst.Pipeline pipe { get { return plugin.pipe; }} private bool attached; private Device? connected_device; private Gst.Element? connected_device_element; private Stream? connected_stream; private Gst.Element prepare; public VideoWidget(Plugin plugin) { this.plugin = plugin; id = last_id++; element = Gst.ElementFactory.make("gtksink", @"video_widget_$id"); if (element != null) { Gtk.Widget widget; element.@get("widget", out widget); element.@set("async", false); element.@set("sync", true); this.widget = widget; add(widget); widget.visible = true; } else { warning("Could not create GTK video sink. Won't display videos."); } size_allocate.connect_after(after_size_allocate); } public void input_caps_changed(GLib.Object pad, ParamSpec spec) { Gst.Caps? caps = (pad as Gst.Pad).caps; if (caps == null) return; int width, height; caps.get_structure(0).get_int("width", out width); caps.get_structure(0).get_int("height", out height); resolution_changed(width, height); } public void after_size_allocate(Gtk.Allocation allocation) { if (prepare != null) { Gst.Element crop = ((Gst.Bin)prepare).get_by_name(@"video_widget_$(id)_crop"); if (crop != null) { Value ratio = new Value(typeof(Gst.Fraction)); Gst.Value.set_fraction(ref ratio, allocation.width, allocation.height); crop.set_property("aspect-ratio", ratio); } } } public void display_stream(Xmpp.Xep.JingleRtp.Stream stream, Xmpp.Jid jid) { if (element == null) return; detach(); if (stream.media != "video") return; connected_stream = stream as Stream; if (connected_stream == null) return; plugin.pause(); pipe.add(element); prepare = Gst.parse_bin_from_description(@"aspectratiocrop aspect-ratio=4/3 name=video_widget_$(id)_crop ! videoconvert name=video_widget_$(id)_convert", true); prepare.name = @"video_widget_$(id)_prepare"; prepare.get_static_pad("sink").notify["caps"].connect(input_caps_changed); pipe.add(prepare); connected_stream.add_output(prepare); prepare.link(element); element.set_locked_state(false); plugin.unpause(); attached = true; } public void display_device(MediaDevice media_device) { if (element == null) return; detach(); connected_device = media_device as Device; if (connected_device == null) return; plugin.pause(); pipe.add(element); prepare = Gst.parse_bin_from_description(@"aspectratiocrop aspect-ratio=4/3 name=video_widget_$(id)_crop ! videoflip method=horizontal-flip name=video_widget_$(id)_flip ! videoconvert name=video_widget_$(id)_convert", true); prepare.name = @"video_widget_$(id)_prepare"; prepare.get_static_pad("sink").notify["caps"].connect(input_caps_changed); pipe.add(prepare); connected_device_element = connected_device.link_source(); connected_device_element.link(prepare); prepare.link(element); element.set_locked_state(false); plugin.unpause(); attached = true; } public void detach() { if (element == null) return; if (attached) { if (connected_stream != null) { connected_stream.remove_output(prepare); connected_stream = null; } if (connected_device != null) { connected_device_element.unlink(element); connected_device_element = null; connected_device.unlink(); connected_device = null; } prepare.set_locked_state(true); prepare.set_state(Gst.State.NULL); pipe.remove(prepare); prepare = null; element.set_locked_state(true); element.set_state(Gst.State.NULL); pipe.remove(element); attached = false; } } public override void dispose() { detach(); widget = null; element = null; } }