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100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GTK_GST_BASE_WIDGET_H__
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#define __GTK_GST_BASE_WIDGET_H__
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#include <gtk/gtk.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#define GTK_GST_BASE_WIDGET(w) ((GtkGstBaseWidget *)(w))
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#define GTK_GST_BASE_WIDGET_CLASS(k) ((GtkGstBaseWidgetClass *)(k))
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#define GTK_GST_BASE_WIDGET_LOCK(w) g_mutex_lock(&((GtkGstBaseWidget*)(w))->lock)
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#define GTK_GST_BASE_WIDGET_UNLOCK(w) g_mutex_unlock(&((GtkGstBaseWidget*)(w))->lock)
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G_BEGIN_DECLS
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typedef struct _GtkGstBaseWidget GtkGstBaseWidget;
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typedef struct _GtkGstBaseWidgetClass GtkGstBaseWidgetClass;
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struct _GtkGstBaseWidget
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{
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union {
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GtkDrawingArea drawing_area;
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#if GTK_CHECK_VERSION(3, 15, 0)
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GtkGLArea gl_area;
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#endif
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} parent;
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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 *pending_buffer;
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GstBuffer *buffer;
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GstVideoInfo v_info;
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/* resize */
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gboolean pending_resize;
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GstVideoInfo pending_v_info;
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guint display_ratio_num;
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guint display_ratio_den;
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/*< private >*/
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GMutex lock;
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GWeakRef element;
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/* Pending draw idles callback */
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guint draw_id;
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};
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struct _GtkGstBaseWidgetClass
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{
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union {
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GtkDrawingAreaClass drawing_area_class;
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#if GTK_CHECK_VERSION(3, 15, 0)
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GtkGLAreaClass gl_area_class;
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#endif
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} parent_class;
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};
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/* For implementer */
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void gtk_gst_base_widget_class_init (GtkGstBaseWidgetClass * klass);
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void gtk_gst_base_widget_init (GtkGstBaseWidget * widget);
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void gtk_gst_base_widget_finalize (GObject * object);
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/* API */
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gboolean gtk_gst_base_widget_set_format (GtkGstBaseWidget * widget, GstVideoInfo * v_info);
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void gtk_gst_base_widget_set_buffer (GtkGstBaseWidget * widget, GstBuffer * buffer);
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void gtk_gst_base_widget_set_element (GtkGstBaseWidget * widget, GstElement * element);
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void gtk_gst_base_widget_display_size_to_stream_size (GtkGstBaseWidget * base_widget,
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gdouble x, gdouble y,
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gdouble * stream_x, gdouble * stream_y);
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G_END_DECLS
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#endif /* __GTK_GST_BASE_WIDGET_H__ */
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