mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-21 07:46:38 +00:00
gtksink: Port to GtkGstBaseWidget
https://bugzilla.gnome.org/show_bug.cgi?id=752441
This commit is contained in:
Nicolas Dufresne
parent
ad45bcdd34
commit
b53f859b59
4 changed files with 42 additions and 343 deletions
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@ -172,7 +172,7 @@ widget_destroy_cb (GtkWidget * widget, GstGtkSink * gtk_sink)
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GST_OBJECT_UNLOCK (gtk_sink);
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}
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static GtkGstWidget *
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static GtkGstBaseWidget *
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gst_gtk_sink_get_widget (GstGtkSink * gtk_sink)
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{
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if (gtk_sink->widget != NULL)
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@ -185,7 +185,7 @@ gst_gtk_sink_get_widget (GstGtkSink * gtk_sink)
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return NULL;
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}
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gtk_sink->widget = (GtkGstWidget *) gtk_gst_widget_new ();
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gtk_sink->widget = (GtkGstBaseWidget *) gtk_gst_widget_new ();
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gtk_sink->bind_aspect_ratio =
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g_object_bind_property (gtk_sink, "force-aspect-ratio", gtk_sink->widget,
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"force-aspect-ratio", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
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@ -323,7 +323,7 @@ gst_gtk_sink_change_state (GstElement * element, GstStateChange transition)
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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GST_OBJECT_LOCK (gtk_sink);
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if (gtk_sink->widget)
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gtk_gst_widget_set_buffer (gtk_sink->widget, NULL);
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gtk_gst_base_widget_set_buffer (gtk_sink->widget, NULL);
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GST_OBJECT_UNLOCK (gtk_sink);
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break;
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case GST_STATE_CHANGE_READY_TO_NULL:
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@ -368,8 +368,19 @@ gst_gtk_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
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if (!gst_video_info_from_caps (>k_sink->v_info, caps))
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return FALSE;
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if (!gtk_gst_widget_set_caps (gtk_sink->widget, caps))
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GST_OBJECT_LOCK (gtk_sink);
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if (gtk_sink->widget == NULL) {
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GST_OBJECT_UNLOCK (gtk_sink);
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GST_ELEMENT_ERROR (gtk_sink, RESOURCE, NOT_FOUND,
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("%s", "Output widget was destroyed"), (NULL));
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return FALSE;
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}
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if (!gtk_gst_base_widget_set_caps (gtk_sink->widget, caps))
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return FALSE;
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GST_OBJECT_UNLOCK (gtk_sink);
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return TRUE;
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}
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@ -386,15 +397,15 @@ gst_gtk_sink_show_frame (GstVideoSink * vsink, GstBuffer * buf)
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GST_OBJECT_LOCK (vsink);
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if (gtk_sink->widget == NULL) {
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GST_OBJECT_UNLOCK (vsink);
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GST_OBJECT_UNLOCK (gtk_sink);
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GST_ELEMENT_ERROR (gtk_sink, RESOURCE, NOT_FOUND,
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("%s", "Output widget was destroyed"), (NULL));
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return GST_FLOW_ERROR;
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}
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gtk_gst_widget_set_buffer (gtk_sink->widget, buf);
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gtk_gst_base_widget_set_buffer (gtk_sink->widget, buf);
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GST_OBJECT_UNLOCK (vsink);
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GST_OBJECT_UNLOCK (gtk_sink);
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return GST_FLOW_OK;
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}
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@ -53,7 +53,7 @@ struct _GstGtkSink
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GstVideoInfo v_info;
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GtkGstWidget *widget;
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GtkGstBaseWidget *widget;
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/* properties */
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gboolean force_aspect_ratio;
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@ -37,80 +37,10 @@
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G_DEFINE_TYPE (GtkGstWidget, gtk_gst_widget, GTK_TYPE_DRAWING_AREA);
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#define GTK_GST_WIDGET_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
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GTK_TYPE_GST_WIDGET, GtkGstWidgetPrivate))
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#define DEFAULT_FORCE_ASPECT_RATIO TRUE
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#define DEFAULT_PAR_N 0
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#define DEFAULT_PAR_D 1
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#define DEFAULT_IGNORE_ALPHA TRUE
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enum
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{
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PROP_0,
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PROP_FORCE_ASPECT_RATIO,
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PROP_PIXEL_ASPECT_RATIO,
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PROP_IGNORE_ALPHA,
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};
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struct _GtkGstWidgetPrivate
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{
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GMutex lock;
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/* properties */
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gboolean force_aspect_ratio;
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gint par_n, par_d;
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gboolean ignore_alpha;
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gint display_width;
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gint display_height;
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gboolean negotiated;
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GstBuffer *buffer;
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GstCaps *caps;
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GstVideoInfo v_info;
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/* Pending queued idles callback */
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guint draw_id;
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guint resize_id;
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};
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static void
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gtk_gst_widget_get_preferred_width (GtkWidget * widget, gint * min,
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gint * natural)
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{
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GtkGstWidget *gst_widget = (GtkGstWidget *) widget;
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gint video_width = gst_widget->priv->display_width;
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if (!gst_widget->priv->negotiated)
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video_width = 10;
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if (min)
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*min = 1;
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if (natural)
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*natural = video_width;
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}
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static void
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gtk_gst_widget_get_preferred_height (GtkWidget * widget, gint * min,
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gint * natural)
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{
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GtkGstWidget *gst_widget = (GtkGstWidget *) widget;
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gint video_height = gst_widget->priv->display_height;
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if (!gst_widget->priv->negotiated)
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video_height = 10;
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if (min)
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*min = 1;
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if (natural)
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*natural = video_height;
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}
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static gboolean
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gtk_gst_widget_draw (GtkWidget * widget, cairo_t * cr)
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{
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GtkGstWidget *gst_widget = (GtkGstWidget *) widget;
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GtkGstBaseWidget *gst_widget = (GtkGstBaseWidget *) widget;
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guint widget_width, widget_height;
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cairo_surface_t *surface;
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GstVideoFrame frame;
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@ -118,19 +48,18 @@ gtk_gst_widget_draw (GtkWidget * widget, cairo_t * cr)
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widget_width = gtk_widget_get_allocated_width (widget);
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widget_height = gtk_widget_get_allocated_height (widget);
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g_mutex_lock (&gst_widget->priv->lock);
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GTK_GST_BASE_WIDGET_LOCK (gst_widget);
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/* failed to map the video frame */
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if (gst_widget->priv->negotiated && gst_widget->priv->buffer
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&& gst_video_frame_map (&frame, &gst_widget->priv->v_info,
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gst_widget->priv->buffer, GST_MAP_READ)) {
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gdouble scale_x = (gdouble) widget_width / gst_widget->priv->display_width;
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gdouble scale_y =
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(gdouble) widget_height / gst_widget->priv->display_height;
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if (gst_widget->negotiated && gst_widget->buffer
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&& gst_video_frame_map (&frame, &gst_widget->v_info,
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gst_widget->buffer, GST_MAP_READ)) {
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gdouble scale_x = (gdouble) widget_width / gst_widget->display_width;
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gdouble scale_y = (gdouble) widget_height / gst_widget->display_height;
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GstVideoRectangle result;
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cairo_format_t format;
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gst_widget->priv->v_info = frame.info;
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gst_widget->v_info = frame.info;
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if (frame.info.finfo->format == GST_VIDEO_FORMAT_ARGB ||
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frame.info.finfo->format == GST_VIDEO_FORMAT_BGRA) {
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format = CAIRO_FORMAT_ARGB32;
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@ -141,13 +70,13 @@ gtk_gst_widget_draw (GtkWidget * widget, cairo_t * cr)
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surface = cairo_image_surface_create_for_data (frame.data[0],
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format, frame.info.width, frame.info.height, frame.info.stride[0]);
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if (gst_widget->priv->force_aspect_ratio) {
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if (gst_widget->force_aspect_ratio) {
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GstVideoRectangle src, dst;
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src.x = 0;
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src.y = 0;
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src.w = gst_widget->priv->display_width;
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src.h = gst_widget->priv->display_height;
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src.w = gst_widget->display_width;
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src.h = gst_widget->display_height;
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dst.x = 0;
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dst.y = 0;
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@ -164,7 +93,7 @@ gtk_gst_widget_draw (GtkWidget * widget, cairo_t * cr)
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result.h = widget_height;
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}
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if (gst_widget->priv->ignore_alpha) {
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if (gst_widget->ignore_alpha) {
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GdkRGBA color = { 0.0, 0.0, 0.0, 1.0 };
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gdk_cairo_set_source_rgba (cr, &color);
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@ -188,11 +117,9 @@ gtk_gst_widget_draw (GtkWidget * widget, cairo_t * cr)
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}
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}
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scale_x *=
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(gdouble) gst_widget->priv->display_width / (gdouble) frame.info.width;
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scale_x *= (gdouble) gst_widget->display_width / (gdouble) frame.info.width;
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scale_y *=
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(gdouble) gst_widget->priv->display_height /
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(gdouble) frame.info.height;
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(gdouble) gst_widget->display_height / (gdouble) frame.info.height;
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cairo_translate (cr, result.x, result.y);
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cairo_scale (cr, scale_x, scale_y);
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@ -206,7 +133,7 @@ gtk_gst_widget_draw (GtkWidget * widget, cairo_t * cr)
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} else {
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GdkRGBA color;
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if (gst_widget->priv->ignore_alpha) {
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if (gst_widget->ignore_alpha) {
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color.red = color.blue = color.green = 0.0;
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color.alpha = 1.0;
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} else {
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@ -218,118 +145,33 @@ gtk_gst_widget_draw (GtkWidget * widget, cairo_t * cr)
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cairo_fill (cr);
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}
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g_mutex_unlock (&gst_widget->priv->lock);
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GTK_GST_BASE_WIDGET_UNLOCK (gst_widget);
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return FALSE;
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}
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static void
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gtk_gst_widget_finalize (GObject * object)
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{
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GtkGstWidget *widget = GTK_GST_WIDGET_CAST (object);
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gst_buffer_replace (&widget->priv->buffer, NULL);
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g_mutex_clear (&widget->priv->lock);
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if (widget->priv->draw_id)
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g_source_remove (widget->priv->draw_id);
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if (widget->priv->resize_id)
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g_source_remove (widget->priv->resize_id);
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gtk_gst_base_widget_finalize (object);
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G_OBJECT_CLASS (gtk_gst_widget_parent_class)->finalize (object);
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}
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static void
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gtk_gst_widget_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GtkGstWidget *gtk_widget = GTK_GST_WIDGET (object);
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switch (prop_id) {
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case PROP_FORCE_ASPECT_RATIO:
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gtk_widget->priv->force_aspect_ratio = g_value_get_boolean (value);
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break;
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case PROP_PIXEL_ASPECT_RATIO:
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gtk_widget->priv->par_n = gst_value_get_fraction_numerator (value);
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gtk_widget->priv->par_d = gst_value_get_fraction_denominator (value);
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break;
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case PROP_IGNORE_ALPHA:
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gtk_widget->priv->ignore_alpha = g_value_get_boolean (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_gst_widget_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GtkGstWidget *gtk_widget = GTK_GST_WIDGET (object);
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switch (prop_id) {
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case PROP_FORCE_ASPECT_RATIO:
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g_value_set_boolean (value, gtk_widget->priv->force_aspect_ratio);
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break;
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case PROP_PIXEL_ASPECT_RATIO:
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gst_value_set_fraction (value, gtk_widget->priv->par_n,
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gtk_widget->priv->par_d);
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break;
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case PROP_IGNORE_ALPHA:
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g_value_set_boolean (value, gtk_widget->priv->ignore_alpha);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_gst_widget_class_init (GtkGstWidgetClass * klass)
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{
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GObjectClass *gobject_klass = (GObjectClass *) klass;
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GtkWidgetClass *widget_klass = (GtkWidgetClass *) klass;
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g_type_class_add_private (klass, sizeof (GtkGstWidgetPrivate));
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gobject_klass->set_property = gtk_gst_widget_set_property;
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gobject_klass->get_property = gtk_gst_widget_get_property;
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gtk_gst_base_widget_class_init (GTK_GST_BASE_WIDGET_CLASS (klass));
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gobject_klass->finalize = gtk_gst_widget_finalize;
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g_object_class_install_property (gobject_klass, PROP_FORCE_ASPECT_RATIO,
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g_param_spec_boolean ("force-aspect-ratio",
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"Force aspect ratio",
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"When enabled, scaling will respect original aspect ratio",
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DEFAULT_FORCE_ASPECT_RATIO,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, PROP_PIXEL_ASPECT_RATIO,
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gst_param_spec_fraction ("pixel-aspect-ratio", "Pixel Aspect Ratio",
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"The pixel aspect ratio of the device", DEFAULT_PAR_N, DEFAULT_PAR_D,
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G_MAXINT, 1, 1, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_klass, PROP_IGNORE_ALPHA,
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g_param_spec_boolean ("ignore-alpha", "Ignore Alpha",
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"When enabled, alpha will be ignored and converted to black",
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DEFAULT_IGNORE_ALPHA, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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widget_klass->draw = gtk_gst_widget_draw;
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widget_klass->get_preferred_width = gtk_gst_widget_get_preferred_width;
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widget_klass->get_preferred_height = gtk_gst_widget_get_preferred_height;
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}
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static void
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gtk_gst_widget_init (GtkGstWidget * widget)
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{
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widget->priv = GTK_GST_WIDGET_GET_PRIVATE (widget);
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widget->priv->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
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widget->priv->par_n = DEFAULT_PAR_N;
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widget->priv->par_d = DEFAULT_PAR_D;
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widget->priv->ignore_alpha = DEFAULT_IGNORE_ALPHA;
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g_mutex_init (&widget->priv->lock);
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gtk_gst_base_widget_init (GTK_GST_BASE_WIDGET (widget));
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}
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GtkWidget *
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@ -337,153 +179,3 @@ gtk_gst_widget_new (void)
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{
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return (GtkWidget *) g_object_new (GTK_TYPE_GST_WIDGET, NULL);
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}
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static gboolean
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_queue_draw (GtkGstWidget * widget)
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{
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g_mutex_lock (&widget->priv->lock);
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widget->priv->draw_id = 0;
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g_mutex_unlock (&widget->priv->lock);
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gtk_widget_queue_draw (GTK_WIDGET (widget));
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return G_SOURCE_REMOVE;
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}
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void
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gtk_gst_widget_set_buffer (GtkGstWidget * widget, GstBuffer * buffer)
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{
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g_return_if_fail (GTK_IS_GST_WIDGET (widget));
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g_return_if_fail (buffer == NULL || widget->priv->negotiated);
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g_mutex_lock (&widget->priv->lock);
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gst_buffer_replace (&widget->priv->buffer, buffer);
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if (!widget->priv->draw_id) {
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widget->priv->draw_id = g_idle_add_full (G_PRIORITY_DEFAULT,
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(GSourceFunc) _queue_draw, widget, NULL);
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}
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g_mutex_unlock (&widget->priv->lock);
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}
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static gboolean
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_queue_resize (GtkGstWidget * widget)
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{
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g_mutex_lock (&widget->priv->lock);
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widget->priv->resize_id = 0;
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g_mutex_unlock (&widget->priv->lock);
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gtk_widget_queue_resize (GTK_WIDGET (widget));
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return G_SOURCE_REMOVE;
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}
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static gboolean
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_calculate_par (GtkGstWidget * widget, GstVideoInfo * info)
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{
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gboolean ok;
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gint width, height;
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gint par_n, par_d;
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gint display_par_n, display_par_d;
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guint display_ratio_num, display_ratio_den;
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width = GST_VIDEO_INFO_WIDTH (info);
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height = GST_VIDEO_INFO_HEIGHT (info);
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par_n = GST_VIDEO_INFO_PAR_N (info);
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par_d = GST_VIDEO_INFO_PAR_D (info);
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if (!par_n)
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par_n = 1;
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/* get display's PAR */
|
||||
if (widget->priv->par_n != 0 && widget->priv->par_d != 0) {
|
||||
display_par_n = widget->priv->par_n;
|
||||
display_par_d = widget->priv->par_d;
|
||||
} else {
|
||||
display_par_n = 1;
|
||||
display_par_d = 1;
|
||||
}
|
||||
|
||||
ok = gst_video_calculate_display_ratio (&display_ratio_num,
|
||||
&display_ratio_den, width, height, par_n, par_d, display_par_n,
|
||||
display_par_d);
|
||||
|
||||
if (!ok)
|
||||
return FALSE;
|
||||
|
||||
GST_LOG ("PAR: %u/%u DAR:%u/%u", par_n, par_d, display_par_n, display_par_d);
|
||||
|
||||
if (height % display_ratio_den == 0) {
|
||||
GST_DEBUG ("keeping video height");
|
||||
widget->priv->display_width = (guint)
|
||||
gst_util_uint64_scale_int (height, display_ratio_num,
|
||||
display_ratio_den);
|
||||
widget->priv->display_height = height;
|
||||
} else if (width % display_ratio_num == 0) {
|
||||
GST_DEBUG ("keeping video width");
|
||||
widget->priv->display_width = width;
|
||||
widget->priv->display_height = (guint)
|
||||
gst_util_uint64_scale_int (width, display_ratio_den, display_ratio_num);
|
||||
} else {
|
||||
GST_DEBUG ("approximating while keeping video height");
|
||||
widget->priv->display_width = (guint)
|
||||
gst_util_uint64_scale_int (height, display_ratio_num,
|
||||
display_ratio_den);
|
||||
widget->priv->display_height = height;
|
||||
}
|
||||
GST_DEBUG ("scaling to %dx%d", widget->priv->display_width,
|
||||
widget->priv->display_height);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
gtk_gst_widget_set_caps (GtkGstWidget * widget, GstCaps * caps)
|
||||
{
|
||||
GstVideoInfo v_info;
|
||||
|
||||
g_return_val_if_fail (GTK_IS_GST_WIDGET (widget), FALSE);
|
||||
g_return_val_if_fail (GST_IS_CAPS (caps), FALSE);
|
||||
g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
|
||||
|
||||
if (widget->priv->caps && gst_caps_is_equal_fixed (widget->priv->caps, caps))
|
||||
return TRUE;
|
||||
|
||||
if (!gst_video_info_from_caps (&v_info, caps))
|
||||
return FALSE;
|
||||
|
||||
/* FIXME: support other formats */
|
||||
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
|
||||
g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&v_info) ==
|
||||
GST_VIDEO_FORMAT_BGRA || GST_VIDEO_INFO_FORMAT (&v_info) ==
|
||||
GST_VIDEO_FORMAT_BGRx, FALSE);
|
||||
#else
|
||||
g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (&v_info) ==
|
||||
GST_VIDEO_FORMAT_ARGB || GST_VIDEO_INFO_FORMAT (&v_info) ==
|
||||
GST_VIDEO_FORMAT_xRGB, FALSE);
|
||||
#endif
|
||||
|
||||
g_mutex_lock (&widget->priv->lock);
|
||||
|
||||
if (!_calculate_par (widget, &v_info)) {
|
||||
g_mutex_unlock (&widget->priv->lock);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
gst_buffer_replace (&widget->priv->buffer, NULL);
|
||||
gst_caps_replace (&widget->priv->caps, caps);
|
||||
widget->priv->v_info = v_info;
|
||||
widget->priv->negotiated = TRUE;
|
||||
|
||||
if (!widget->priv->resize_id) {
|
||||
widget->priv->resize_id = g_idle_add_full (G_PRIORITY_DEFAULT,
|
||||
(GSourceFunc) _queue_resize, widget, NULL);
|
||||
}
|
||||
|
||||
g_mutex_unlock (&widget->priv->lock);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -24,6 +24,8 @@
|
|||
#include <gtk/gtk.h>
|
||||
#include <gst/gst.h>
|
||||
|
||||
#include "gtkgstbasewidget.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
GType gtk_gst_widget_get_type (void);
|
||||
|
|
@ -36,7 +38,6 @@ GType gtk_gst_widget_get_type (void);
|
|||
|
||||
typedef struct _GtkGstWidget GtkGstWidget;
|
||||
typedef struct _GtkGstWidgetClass GtkGstWidgetClass;
|
||||
typedef struct _GtkGstWidgetPrivate GtkGstWidgetPrivate;
|
||||
|
||||
/**
|
||||
* GtkGstWidget:
|
||||
|
|
@ -46,9 +47,7 @@ typedef struct _GtkGstWidgetPrivate GtkGstWidgetPrivate;
|
|||
struct _GtkGstWidget
|
||||
{
|
||||
/* <private> */
|
||||
GtkDrawingArea parent;
|
||||
|
||||
GtkGstWidgetPrivate *priv;
|
||||
GtkGstBaseWidget base;
|
||||
};
|
||||
|
||||
/**
|
||||
|
|
@ -59,14 +58,11 @@ struct _GtkGstWidget
|
|||
struct _GtkGstWidgetClass
|
||||
{
|
||||
/* <private> */
|
||||
GtkDrawingAreaClass object_class;
|
||||
GtkGstBaseWidgetClass base_class;
|
||||
};
|
||||
|
||||
GtkWidget * gtk_gst_widget_new (void);
|
||||
|
||||
gboolean gtk_gst_widget_set_caps (GtkGstWidget * widget, GstCaps *caps);
|
||||
void gtk_gst_widget_set_buffer (GtkGstWidget * widget, GstBuffer *buffer);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GTK_GST_WIDGET_H__ */
|
||||
|
|
|
|||
Loading…
Reference in a new issue