/* * empathy-gst-gtk-widget.c - Source for EmpathyVideoWidget * Copyright (C) 2008 Collabora Ltd. * @author Sjoerd Simons * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include "empathy-video-widget.h" G_DEFINE_TYPE(EmpathyVideoWidget, empathy_video_widget, GTK_TYPE_DRAWING_AREA) static void empathy_video_widget_element_added_cb ( FsElementAddedNotifier *notifier, GstBin *bin, GstElement *element, EmpathyVideoWidget *self); static void empathy_video_widget_sync_message_cb ( GstBus *bus, GstMessage *message, EmpathyVideoWidget *self); /* signal enum */ #if 0 enum { LAST_SIGNAL }; static guint signals[LAST_SIGNAL] = {0}; #endif enum { PROP_GST_ELEMENT = 1, PROP_GST_BUS, PROP_MIN_WIDTH, PROP_MIN_HEIGHT, }; /* private structure */ typedef struct _EmpathyVideoWidgetPriv EmpathyVideoWidgetPriv; struct _EmpathyVideoWidgetPriv { gboolean dispose_has_run; GstBus *bus; GstElement *videosink; GstPad *sink_pad; GstElement *overlay; FsElementAddedNotifier *notifier; gint min_width; gint min_height; }; #define GET_PRIV(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), \ EMPATHY_TYPE_VIDEO_WIDGET, EmpathyVideoWidgetPriv)) static void empathy_video_widget_init (EmpathyVideoWidget *obj) { EmpathyVideoWidgetPriv *priv = GET_PRIV (obj); GdkColor black; priv->notifier = fs_element_added_notifier_new (); g_signal_connect (priv->notifier, "element-added", G_CALLBACK (empathy_video_widget_element_added_cb), obj); if (gdk_color_parse ("Black", &black)) gtk_widget_modify_bg (GTK_WIDGET (obj), GTK_STATE_NORMAL, &black); GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (obj), GTK_DOUBLE_BUFFERED); } static void empathy_video_widget_constructed (GObject *object) { EmpathyVideoWidgetPriv *priv = GET_PRIV (object); priv->videosink = gst_element_factory_make ("gconfvideosink", NULL); gst_object_ref (priv->videosink); gst_object_sink (priv->videosink); priv->sink_pad = gst_element_get_static_pad (priv->videosink, "sink"); fs_element_added_notifier_add (priv->notifier, GST_BIN (priv->videosink)); gst_bus_enable_sync_message_emission (priv->bus); g_signal_connect (priv->bus, "sync-message", G_CALLBACK (empathy_video_widget_sync_message_cb), object); gtk_widget_set_size_request (GTK_WIDGET (object), priv->min_width, priv->min_height); } static void empathy_video_widget_dispose (GObject *object); static void empathy_video_widget_finalize (GObject *object); static gboolean empathy_video_widget_expose_event (GtkWidget *widget, GdkEventExpose *event); static void empathy_video_widget_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { EmpathyVideoWidgetPriv *priv = GET_PRIV (object); switch (property_id) { case PROP_GST_BUS: priv->bus = g_value_dup_object (value); break; case PROP_MIN_WIDTH: priv->min_width = g_value_get_int (value); break; case PROP_MIN_HEIGHT: priv->min_height = g_value_get_int (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); } } static void empathy_video_widget_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { EmpathyVideoWidgetPriv *priv = GET_PRIV (object); switch (property_id) { case PROP_GST_ELEMENT: g_value_set_object (value, priv->videosink); break; case PROP_GST_BUS: g_value_set_object (value, priv->bus); break; case PROP_MIN_WIDTH: g_value_set_int (value, priv->min_width); break; case PROP_MIN_HEIGHT: g_value_set_int (value, priv->min_height); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); } } static void empathy_video_widget_class_init ( EmpathyVideoWidgetClass *empathy_video_widget_class) { GObjectClass *object_class = G_OBJECT_CLASS (empathy_video_widget_class); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (empathy_video_widget_class); GParamSpec *param_spec; g_type_class_add_private (empathy_video_widget_class, sizeof (EmpathyVideoWidgetPriv)); object_class->dispose = empathy_video_widget_dispose; object_class->finalize = empathy_video_widget_finalize; object_class->constructed = empathy_video_widget_constructed; object_class->set_property = empathy_video_widget_set_property; object_class->get_property = empathy_video_widget_get_property; widget_class->expose_event = empathy_video_widget_expose_event; param_spec = g_param_spec_object ("gst-element", "gst-element", "The underlaying gstreamer element", GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); g_object_class_install_property (object_class, PROP_GST_ELEMENT, param_spec); param_spec = g_param_spec_object ("gst-bus", "gst-bus", "The toplevel bus from the pipeline in which this bin will be added", GST_TYPE_BUS, G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS); g_object_class_install_property (object_class, PROP_GST_BUS, param_spec); param_spec = g_param_spec_int ("min-width", "min-width", "Minimal width of the widget", 0, G_MAXINT, 320, G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS); g_object_class_install_property (object_class, PROP_MIN_WIDTH, param_spec); param_spec = g_param_spec_int ("min-height", "min-height", "Minimal height of the widget", 0, G_MAXINT, 240, G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS); g_object_class_install_property (object_class, PROP_MIN_HEIGHT, param_spec); } void empathy_video_widget_dispose (GObject *object) { EmpathyVideoWidget *self = EMPATHY_VIDEO_WIDGET (object); EmpathyVideoWidgetPriv *priv = GET_PRIV (self); if (priv->dispose_has_run) return; priv->dispose_has_run = TRUE; if (priv->bus != NULL) g_object_unref (priv->bus); priv->bus = NULL; if (priv->videosink != NULL) g_object_unref (priv->videosink); priv->videosink = NULL; /* release any references held by the object here */ if (G_OBJECT_CLASS (empathy_video_widget_parent_class)->dispose) G_OBJECT_CLASS (empathy_video_widget_parent_class)->dispose (object); } void empathy_video_widget_finalize (GObject *object) { //EmpathyVideoWidget *self = EMPATHY_VIDEO_WIDGET (object); //EmpathyVideoWidgetPriv *priv = GET_PRIV (self); /* free any data held directly by the object here */ G_OBJECT_CLASS (empathy_video_widget_parent_class)->finalize (object); } static void empathy_video_widget_element_added_cb (FsElementAddedNotifier *notifier, GstBin *bin, GstElement *element, EmpathyVideoWidget *self) { EmpathyVideoWidgetPriv *priv = GET_PRIV (self); if (priv->overlay == NULL && GST_IS_X_OVERLAY (element)) { priv->overlay = element; gst_x_overlay_expose (GST_X_OVERLAY (priv->overlay)); } if (g_object_class_find_property ( G_OBJECT_GET_CLASS (element), "force-aspect-ratio")) { g_object_set (G_OBJECT (element), "force-aspect-ratio", TRUE, NULL); } } static void empathy_video_widget_sync_message_cb (GstBus *bus, GstMessage *message, EmpathyVideoWidget *self) { EmpathyVideoWidgetPriv *priv = GET_PRIV (self); const GstStructure *s; if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT) return; if (GST_MESSAGE_SRC (message) != (GstObject *) priv->overlay) return; s = gst_message_get_structure (message); if (gst_structure_has_name (s, "prepare-xwindow-id")) { gst_x_overlay_set_xwindow_id (GST_X_OVERLAY (priv->overlay), GDK_WINDOW_XID (GTK_WIDGET (self)->window)); } } static gboolean empathy_video_widget_expose_event (GtkWidget *widget, GdkEventExpose *event) { EmpathyVideoWidget *self = EMPATHY_VIDEO_WIDGET (widget); EmpathyVideoWidgetPriv *priv = GET_PRIV (self); if (event != NULL && event->count > 0) return TRUE; if (priv->overlay == NULL) return TRUE; gst_x_overlay_set_xwindow_id (GST_X_OVERLAY (priv->overlay), GDK_WINDOW_XID (widget->window)); gst_x_overlay_expose (GST_X_OVERLAY (priv->overlay)); return TRUE; } GtkWidget * empathy_video_widget_new_with_size (GstBus *bus, gint width, gint height) { g_return_val_if_fail (bus != NULL, NULL); return GTK_WIDGET (g_object_new (EMPATHY_TYPE_VIDEO_WIDGET, "gst-bus", bus, "min-width", width, "min-height", height, NULL)); } GtkWidget * empathy_video_widget_new (GstBus *bus) { g_return_val_if_fail (bus != NULL, NULL); return GTK_WIDGET (g_object_new (EMPATHY_TYPE_VIDEO_WIDGET, "gst-bus", bus, NULL)); } GstPad * empathy_video_widget_get_sink (EmpathyVideoWidget *widget) { EmpathyVideoWidgetPriv *priv = GET_PRIV (widget); return priv->sink_pad; } GstElement * empathy_video_widget_get_element (EmpathyVideoWidget *widget) { EmpathyVideoWidgetPriv *priv = GET_PRIV (widget); return priv->videosink; }