Added the base framework for the SMPTE transitions and wipes.

Original commit message from CVS:
Added the base framework for the SMPTE transitions and wipes.

8 files changed, 921 insertions, 0 deletions

diff --git a/gst/smpte/Makefile.am b/gst/smpte/Makefile.am
new file mode 100644
index 00000000..91a6d127
--- /dev/null
+++ b/gst/smpte/Makefile.am
@@ -0,0 +1,14 @@
+plugindir = $(libdir)/gst
+
+plugin_LTLIBRARIES = libgstsmpte.la
+
+libgstsmpte_la_SOURCES = gstsmpte.c gstmask.c barboxwipes.c paint.c
+
+noinst_HEADERS = gstsmpte.h gstmask.h paint.h
+
+libgstsmpte_la_CFLAGS = -O2 -ffast-math $(GST_CFLAGS)
+libgstsmpte_la_LIBADD =
+libgstsmpte_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+EXTRA_DIST = 
+
diff --git a/gst/smpte/barboxwipes.c b/gst/smpte/barboxwipes.c
new file mode 100644
index 00000000..031c282a
--- /dev/null
+++ b/gst/smpte/barboxwipes.c
@@ -0,0 +1,152 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "paint.h"
+#include "gstmask.h"
+
+static void
+gst_bar_wipe_lr_update (GstMask *mask,
+		        GstClockTime position,
+		        GstClockTime duration)
+{
+  gint width = mask->width;
+  gint height = mask->height;
+  gint split = (position * width) / duration;
+
+  gst_smpte_paint_rect (mask->data, width, split, 0, width - split, height, 0);
+  gst_smpte_paint_rect (mask->data, width, 0,     0, split,         height, 255);
+}
+
+static void
+gst_bar_wipe_tb_update (GstMask *mask,
+		        GstClockTime position,
+		        GstClockTime duration)
+{
+  gint width = mask->width;
+  gint height = mask->height;
+  gint split = (position * height) / duration;
+
+  gst_smpte_paint_rect (mask->data, width, 0, 0,     width, split,          255);
+  gst_smpte_paint_rect (mask->data, width, 0, split, width, height - split, 0);
+}
+
+static void
+gst_box_wipe_update (GstMask *mask,
+		     GstClockTime position,
+		     GstClockTime duration)
+{
+  static gint box_wipe_impacts[8][4] = 
+  {
+    /* 3 -> 6 */
+    { 0, 0, 0, 0 },
+    { 2, 2, 0, 0 },
+    { 2, 2, 2, 2 },
+    { 0, 0, 2, 2 },
+    /* 23 -> 26 */
+    { 1, 1, 0, 0 },
+    { 2, 2, 1, 1 },
+    { 1, 1, 2, 2 },
+    { 0, 0, 1, 1 },
+  };
+  gint *impacts = box_wipe_impacts[(mask->type & 0x0F) - 3];
+  gint width = mask->width;
+  gint height = mask->height;
+  gint splitx = (position * width) / duration;
+  gint splity = (position * height) / duration;
+
+  gst_smpte_paint_rect (mask->data, width, 0, 0, width,  height, 0);
+  gst_smpte_paint_rect (mask->data, width, 
+		        (impacts[0] * width)/2  - (impacts[1] * splitx)/2,
+		        (impacts[2] * height)/2 - (impacts[3] * splity)/2,
+		        splitx, splity, 255);
+}
+
+static void
+gst_fourc_box_wipe_update (GstMask *mask,
+		           GstClockTime position,
+		           GstClockTime duration)
+{
+  static gint box_wipe_impacts[8][4] = 
+  {
+    { 0, 0, 0, 0 },
+    { 1, 1, 1, 1 },
+    { 4, 2, 0, 0 },
+    { 3, 1, 1, 1 },
+    { 4, 2, 4, 2 },
+    { 1, 1, 3, 1 },
+    { 0, 0, 4, 2 },
+    { 3, 1, 3, 1 },
+  };
+  gint *impacts;
+  gint width = mask->width;
+  gint height = mask->height;
+  gint splitx = (position * width/2) / duration;
+  gint splity = (position * height/2) / duration;
+  gint i;
+
+  gst_smpte_paint_rect (mask->data, width, 0, 0, width,  height, 0);
+
+  for (i = 7; i > 0; i -= 2) {
+    impacts = box_wipe_impacts[mask->type - i];
+    gst_smpte_paint_rect (mask->data, width, 
+		          (impacts[0] * width)/4  - (impacts[1] * splitx)/2,
+		          (impacts[2] * height)/4 - (impacts[3] * splity)/2,
+		          splitx, splity, 255);
+  }
+}
+
+static GstMaskDefinition definitions[] = { 
+ { 1,  "bar_wipe_lr", "A bar moves from left to right", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_bar_wipe_lr_update },
+ { 2,  "bar_wipe_tb", "A bar moves from top to bottom", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_bar_wipe_tb_update },
+ { 3,  "box_wipe_tl", "A box expands from the upper-left corner to the lower-right corner", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 4,  "box_wipe_tr", "A box expands from the upper-right corner to the lower-left corner", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 5,  "box_wipe_br", "A box expands from the lower-right corner to the upper-left corner", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 6,  "box_wipe_bl", "A box expands from the lower-left corner to the upper-right corner", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 23, "box_wipe_tc", "A box expands from the top edge's midpoint to the bottom corners", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 24, "box_wipe_rc", "A box expands from the right edge's midpoint to the left corners", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 25, "box_wipe_bc", "A box expands from the bottom edge's midpoint to the top corners", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 26, "box_wipe_lc", "A box expands from the left edge's midpoint to the right corners", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_box_wipe_update },
+ { 7 , "four_box_wipe_ci", "A box shape expands from each of the four corners toward the center", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_fourc_box_wipe_update },
+ { 8 , "four_box_wipe_co", "A box shape expands from the center of each quadrant toward the corners of each quadrant", 
+	 		_gst_mask_default_new, _gst_mask_default_destroy, gst_fourc_box_wipe_update },
+ { 0, NULL, NULL, NULL }
+};
+
+void
+_gst_barboxwipes_register (void)
+{
+  gint i = 0;
+
+  while (definitions[i].short_name) {
+    _gst_mask_register (&definitions[i]);
+    i++;
+  }
+}
+
diff --git a/gst/smpte/gstmask.c b/gst/smpte/gstmask.c
new file mode 100644
index 00000000..a26d7190
--- /dev/null
+++ b/gst/smpte/gstmask.c
@@ -0,0 +1,124 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#include "gstmask.h"
+
+extern void _gst_barboxwipes_register (void);
+
+static GList *masks = NULL;
+
+void
+_gst_mask_init (void)
+{
+  _gst_barboxwipes_register ();
+}
+
+static gint
+gst_mask_compare (GstMaskDefinition *def1,
+		  GstMaskDefinition *def2)
+{
+  return (def1->type - def2->type);
+}
+
+void
+_gst_mask_register (GstMaskDefinition *definition)
+{
+  masks = g_list_insert_sorted (masks, definition, (GCompareFunc) gst_mask_compare);
+}
+
+const GList*
+gst_mask_get_definitions (void)
+{
+  return masks;
+}
+
+static GstMaskDefinition*
+gst_mask_find_definition (gint type)
+{
+  GList *walk = masks;
+
+  while (walk) {
+    GstMaskDefinition *def = (GstMaskDefinition *) walk->data;
+
+    if (def->type == type)
+      return def;
+    
+    walk = g_list_next (walk);
+  }
+  return NULL;
+}
+
+GstMask*
+gst_mask_factory_new (gint type, gint bpp, gint width, gint height)
+{
+  GstMaskDefinition *definition;
+  GstMask *mask = NULL;
+
+  definition = gst_mask_find_definition (type);
+  if (definition) {
+    mask = definition->new_func (definition, bpp, width, height);
+  }
+
+  return mask;
+}
+
+GstMask*
+_gst_mask_default_new (GstMaskDefinition *definition,
+		       gint bpp, gint width, gint height)
+{
+  GstMask *mask;
+
+  mask = g_new0 (GstMask, 1);
+
+  mask->type = definition->type;
+  mask->bpp = bpp;
+  mask->width = width;
+  mask->height = height;
+  mask->update_func = definition->update_func;
+  mask->destroy_func = definition->destroy_func;
+  mask->data = g_malloc (width * height * (bpp+7)>>3);
+  
+  return mask;
+}
+
+void
+_gst_mask_default_destroy (GstMask *mask)
+{
+  g_free (mask->data);
+  g_free (mask);
+}
+
+void
+gst_mask_destroy (GstMask *mask)
+{
+  if (mask->destroy_func)
+    mask->destroy_func (mask);
+}
+
+void
+gst_mask_update (GstMask *mask,
+		 GstClockTime position, 
+		 GstClockTime duration)
+{
+  g_return_if_fail (mask != NULL);
+
+  if (mask->update_func)
+    mask->update_func (mask, position, duration);
+}
diff --git a/gst/smpte/gstmask.h b/gst/smpte/gstmask.h
new file mode 100644
index 00000000..f53fb99f
--- /dev/null
+++ b/gst/smpte/gstmask.h
@@ -0,0 +1,73 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_MASK_H__
+#define __GST_MASK_H__
+
+#include <gst/gst.h>
+
+
+typedef struct _GstMask GstMask;
+typedef struct _GstMaskDefinition GstMaskDefinition;
+
+typedef GstMask* 	(*GstMaskNewFunc)		(GstMaskDefinition *definition,
+							 gint bpp, gint width, gint height);
+typedef void	 	(*GstMaskDestroyFunc)		(GstMask *mask);
+typedef void	 	(*GstMaskUpdateFunc)		(GstMask *mask, 
+		 					 GstClockTime position, 
+							 GstClockTime duration);
+struct _GstMaskDefinition {
+  gint 			 type;
+  gchar 		*short_name;
+  gchar 		*long_name;
+  GstMaskNewFunc	 new_func;
+  GstMaskDestroyFunc	 destroy_func;
+  GstMaskUpdateFunc	 update_func;
+};
+
+struct _GstMask {
+  gint 			 type;
+  guint8 		*data;
+
+  gint			 width;
+  gint			 height;
+  gint			 bpp;
+
+  GstMaskUpdateFunc 	 update_func;
+  GstMaskDestroyFunc 	 destroy_func;
+};
+
+void			_gst_mask_init			(void);
+void			_gst_mask_register		(GstMaskDefinition *definition);
+
+GstMask*		_gst_mask_default_new 		(GstMaskDefinition *definition,
+		 					 gint bpp, gint width, gint height);
+void			_gst_mask_default_destroy	(GstMask *mask);
+
+const GList*		gst_mask_get_definitions	(void);
+GstMask*		gst_mask_factory_new 		(gint type, gint bpp, gint width, gint height);
+void			gst_mask_destroy		(GstMask *mask);
+
+void			gst_mask_update 		(GstMask *mask,
+							 GstClockTime position, 
+							 GstClockTime duration);
+
+
+#endif /* __GST_MASK_H__ */
diff --git a/gst/smpte/gstsmpte.c b/gst/smpte/gstsmpte.c
new file mode 100644
index 00000000..536be8d4
--- /dev/null
+++ b/gst/smpte/gstsmpte.c
@@ -0,0 +1,409 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <string.h>
+#include <gstsmpte.h>
+#include "paint.h"
+
+/* elementfactory information */
+static GstElementDetails smpte_details = {
+  "SMPTE transitions",
+  "Filter/Video",
+  "LGPL",
+  "Apply the standard SMPTE transitions on video images",
+  VERSION,
+  "Wim Taymans <wim.taymans@chello.be>",
+  "(C) 2002",
+};
+
+GST_PAD_TEMPLATE_FACTORY (smpte_src_factory,
+  "src",
+  GST_PAD_SRC,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+   "smpte_src",
+   "video/raw",
+     "format",   GST_PROPS_FOURCC (GST_STR_FOURCC ("I420"))
+  )
+)
+
+GST_PAD_TEMPLATE_FACTORY (smpte_sink1_factory,
+  "sink1",
+  GST_PAD_SINK,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+   "smpte_sink1",
+   "video/raw",
+     "format",   GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
+     "width",	 GST_PROPS_INT_RANGE (0, 4096),
+     "height",	 GST_PROPS_INT_RANGE (0, 4096) 
+  )
+)
+
+GST_PAD_TEMPLATE_FACTORY (smpte_sink2_factory,
+  "sink2",
+  GST_PAD_SINK,
+  GST_PAD_ALWAYS,
+  GST_CAPS_NEW (
+   "smpte_sink2",
+   "video/raw",
+     "format",   GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")),
+     "width",	 GST_PROPS_INT_RANGE (0, 4096),
+     "height",	 GST_PROPS_INT_RANGE (0, 4096)
+  )
+)
+
+
+/* SMPTE signals and args */
+enum {
+  /* FILL ME */
+  LAST_SIGNAL
+};
+
+enum {
+  ARG_0,
+  ARG_TYPE,
+};
+
+#define GST_TYPE_SMPTE_TRANSITION_TYPE (gst_smpte_transition_type_get_type())
+static GType
+gst_smpte_transition_type_get_type (void) 
+{
+  static GType smpte_transition_type = 0;
+  GEnumValue *smpte_transitions;
+
+  if (!smpte_transition_type) {
+    const GList *definitions;
+    gint i=0;
+
+    definitions = gst_mask_get_definitions ();
+    smpte_transitions = g_new0 (GEnumValue, g_list_length ((GList *)definitions)+1);
+
+    while (definitions) {
+      GstMaskDefinition *definition = (GstMaskDefinition *) definitions->data;
+      definitions = g_list_next (definitions);
+
+      smpte_transitions[i].value = definition->type;
+      smpte_transitions[i].value_name = definition->short_name;
+      smpte_transitions[i].value_nick = definition->long_name;
+      
+      i++;
+    }
+
+    smpte_transition_type = g_enum_register_static ("GstSMPTETransitionType", smpte_transitions);
+  }
+  return smpte_transition_type;
+}   
+
+
+static void	gst_smpte_class_init		(GstSMPTEClass *klass);
+static void	gst_smpte_init			(GstSMPTE *smpte);
+
+static void	gst_smpte_loop			(GstElement *element);
+
+static void	gst_smpte_set_property		(GObject *object, guint prop_id, 
+						 const GValue *value, GParamSpec *pspec);
+static void	gst_smpte_get_property		(GObject *object, guint prop_id, 
+						 GValue *value, GParamSpec *pspec);
+
+static GstElementClass *parent_class = NULL;
+/*static guint gst_smpte_signals[LAST_SIGNAL] = { 0 }; */
+
+static GType
+gst_smpte_get_type (void)
+{
+  static GType smpte_type = 0;
+
+  if (!smpte_type) {
+    static const GTypeInfo smpte_info = {
+      sizeof(GstSMPTEClass),      
+      NULL,
+      NULL,
+      (GClassInitFunc)gst_smpte_class_init,
+      NULL,
+      NULL,
+      sizeof(GstSMPTE),
+      0,
+      (GInstanceInitFunc)gst_smpte_init,
+    };
+    smpte_type = g_type_register_static(GST_TYPE_ELEMENT, "GstSMPTE", &smpte_info, 0);
+  }
+  return smpte_type;
+}
+
+static void
+gst_smpte_class_init (GstSMPTEClass *klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+
+  gobject_class = (GObjectClass*)klass;
+  gstelement_class = (GstElementClass*)klass;
+
+  parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+
+  gobject_class->set_property = gst_smpte_set_property;
+  gobject_class->get_property = gst_smpte_get_property;
+
+  _gst_mask_init ();
+
+  g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TYPE,
+    g_param_spec_enum ("type", "Type", "The type of transition to use",
+                       GST_TYPE_SMPTE_TRANSITION_TYPE, 1, G_PARAM_READWRITE));
+
+}
+
+/*                        wht  yel  cya  grn  mag  red  blu  blk   -I    Q */
+static int y_colors[] = { 255, 226, 179, 150, 105,  76,  29,  16,  16,   0 };
+static int u_colors[] = { 128,   0, 170,  46, 212,  85, 255, 128,   0, 128 };
+static int v_colors[] = { 128, 155,   0,  21, 235, 255, 107, 128, 128, 255 };
+
+static void
+fill_i420 (guint8 *data, gint width, gint height, gint color)
+{
+  guint8 *yp = data;
+  guint8 *up = data + width * height;
+  guint8 *vp = data + width * height + (width * height) / 4;
+  
+  gst_smpte_paint_rect (yp, width,   0, 0, width,   height,   y_colors[color]);
+  gst_smpte_paint_rect (up, width/2, 0, 0, width/2, height/2, u_colors[color]);
+  gst_smpte_paint_rect (vp, width/2, 0, 0, width/2, height/2, v_colors[color]);
+}
+
+static gboolean
+gst_smpte_sinkconnect (GstPad *pad, GstCaps *caps)
+{
+  GstSMPTE *smpte;
+
+  smpte = GST_SMPTE (gst_pad_get_parent (pad));
+
+  if (!GST_CAPS_IS_FIXED (caps))
+    return GST_PAD_CONNECT_DELAYED;
+
+  gst_caps_get_int (caps, "width", &smpte->width);
+  gst_caps_get_int (caps, "height", &smpte->height);
+
+  smpte->mask = gst_mask_factory_new (smpte->type, 8, smpte->width, smpte->height);
+
+  /* forward to the next plugin */
+  return gst_pad_try_set_caps(smpte->srcpad, gst_caps_copy_1(caps));
+}
+
+static void 
+gst_smpte_init (GstSMPTE *smpte)
+{
+  smpte->sinkpad1 = gst_pad_new_from_template (
+		  GST_PAD_TEMPLATE_GET (smpte_sink1_factory), "sink1");
+  gst_pad_set_connect_function (smpte->sinkpad1, gst_smpte_sinkconnect);
+  gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad1);
+
+  smpte->sinkpad2 = gst_pad_new_from_template (
+		  GST_PAD_TEMPLATE_GET (smpte_sink2_factory), "sink2");
+  gst_pad_set_connect_function (smpte->sinkpad2, gst_smpte_sinkconnect);
+  gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad2);
+
+  smpte->srcpad = gst_pad_new_from_template (
+		  GST_PAD_TEMPLATE_GET (smpte_src_factory), "src");
+  gst_element_add_pad (GST_ELEMENT (smpte), smpte->srcpad);
+
+  gst_element_set_loop_function (GST_ELEMENT (smpte), gst_smpte_loop);
+
+  smpte->width = 320;
+  smpte->height = 200;
+  smpte->duration = 64;
+  smpte->position = 0;
+  smpte->type = 1;
+  smpte->mask = gst_mask_factory_new (smpte->type, 8, smpte->width, smpte->height);
+}
+
+static void
+gst_smpte_blend_i420 (guint8 *in1, guint8 *in2, guint8 *out, GstMask *mask,
+		      gint width, gint height)
+{
+  gint i, j;
+  guint8 *maskporig, *maskp;
+  guint8 *in1u, *in1v, *in2u, *in2v, *outu, *outv; 
+  guint8 value;
+  gint chromsize = (width * height) >> 2;
+
+  maskp = maskporig = mask->data;
+  
+  for (i = width * height; i; i--) {
+    value = *maskp++;
+    *out++ = ((*in2++ * value) + (*in1++ * (255 - value))) >> 8;
+  }
+  in1u = in1; in1v = in1 + chromsize;
+  in2u = in2; in2v = in2 + chromsize;
+  outu = out; outv = out + chromsize;
+
+  maskp = maskporig;
+  for (i = height/2; i; i--, maskp += width) {
+    for (j = width/2; j; j--, maskp += 2) {
+      value = *maskp;
+      *outu++ = ((*in2u++ * value) + (*in1u++ * (255 - value))) >> 8;
+      *outv++ = ((*in2v++ * value) + (*in1v++ * (255 - value))) >> 8;
+    }
+  }
+}
+
+static void
+gst_smpte_loop (GstElement *element)
+{
+  GstSMPTE *smpte;
+  GstBuffer *outbuf;
+  GstClockTime ts;
+  GstBuffer *in1 = NULL, *in2 = NULL;
+
+  smpte = GST_SMPTE (element);
+
+  ts = smpte->position * GST_SECOND;
+
+  if (GST_PAD_IS_USABLE (smpte->sinkpad1)) {
+    in1 = gst_pad_pull (smpte->sinkpad1);
+    ts = GST_BUFFER_TIMESTAMP (in1);
+  }
+  else {
+    in1 = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
+    fill_i420 (GST_BUFFER_DATA (in1), smpte->width, smpte->height, 7);
+  }
+    
+  if (GST_PAD_IS_USABLE (smpte->sinkpad2)) {
+    in2 = gst_pad_pull (smpte->sinkpad2);
+    ts = GST_BUFFER_TIMESTAMP (in2);
+  }
+  else {
+    in2 = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
+    fill_i420 (GST_BUFFER_DATA (in2), smpte->width, smpte->height, 0);
+  }
+
+  if (smpte->position < smpte->duration) { 
+    outbuf = gst_buffer_new_and_alloc (smpte->width * smpte->height * 3);
+
+    if (!GST_PAD_CAPS (smpte->srcpad)) {
+      if (!gst_pad_try_set_caps (smpte->srcpad,
+			    GST_CAPS_NEW (
+				    "smpte_srccaps",
+				    "video/raw",
+				      "format",   GST_PROPS_FOURCC (GST_MAKE_FOURCC ('I','4','2','0')),
+				      "width",    GST_PROPS_INT (smpte->width),
+				      "height",   GST_PROPS_INT (smpte->height)
+				    )))
+      {
+        gst_element_error (element, "cannot set caps");
+        return;
+      }
+    }
+
+    gst_mask_update (smpte->mask, smpte->position, smpte->duration);
+
+    gst_smpte_blend_i420 (GST_BUFFER_DATA (in1), GST_BUFFER_DATA (in2), GST_BUFFER_DATA (outbuf),
+	                  smpte->mask, smpte->width, smpte->height);
+  }
+  else {
+    outbuf = in2;
+    gst_buffer_ref (in2);
+  }
+
+  smpte->position++;
+
+  if (in1)
+    gst_buffer_unref (in1);
+  if (in2)
+    gst_buffer_unref (in2);
+
+  GST_BUFFER_TIMESTAMP (outbuf) = ts;
+  gst_pad_push (smpte->srcpad, outbuf);
+}
+
+static void
+gst_smpte_set_property (GObject *object, guint prop_id, 
+		        const GValue *value, GParamSpec *pspec)
+{
+  GstSMPTE *smpte;
+
+  smpte = GST_SMPTE(object);
+
+  switch (prop_id) {
+    case ARG_TYPE:
+    {
+      GstMask *newmask;
+      gint type = g_value_get_enum (value);
+
+      newmask = gst_mask_factory_new (type, 8, smpte->width, smpte->height);
+      if (newmask) {
+	if (smpte->mask) {
+          gst_mask_destroy (smpte->mask);
+	}
+	smpte->mask = newmask;
+	smpte->type = type;
+      }
+      break;
+    }
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_smpte_get_property (GObject *object, guint prop_id, 
+		        GValue *value, GParamSpec *pspec)
+{
+  GstSMPTE *smpte;
+
+  smpte = GST_SMPTE(object);
+
+  switch (prop_id) {
+    case ARG_TYPE:
+      if (smpte->mask) {
+	g_value_set_enum (value, smpte->mask->type);
+      }
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+  GstElementFactory *factory;
+
+  factory = gst_element_factory_new("smpte",GST_TYPE_SMPTE,
+                                   &smpte_details);
+  g_return_val_if_fail(factory != NULL, FALSE);
+
+  gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (smpte_sink1_factory));
+  gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (smpte_sink2_factory));
+  gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (smpte_src_factory));
+
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+  return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "smpte",
+  plugin_init
+};
+
diff --git a/gst/smpte/gstsmpte.h b/gst/smpte/gstsmpte.h
new file mode 100644
index 00000000..5ba6278a
--- /dev/null
+++ b/gst/smpte/gstsmpte.h
@@ -0,0 +1,63 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_SMPTE_H__
+#define __GST_SMPTE_H__
+
+#include <gst/gst.h>
+#include <gstmask.h>
+
+#define GST_TYPE_SMPTE \
+  (gst_smpte_get_type())
+#define GST_SMPTE(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SMPTE,GstSMPTE))
+#define GST_SMPTE_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SMPTE,GstSMPTE))
+#define GST_IS_SMPTE(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SMPTE))
+#define GST_IS_SMPTE_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SMPTE))
+
+typedef struct _GstSMPTE GstSMPTE;
+typedef struct _GstSMPTEClass GstSMPTEClass;
+
+struct _GstSMPTE {
+  GstElement 	 element;
+
+  gint 		 format;
+  gint 		 width;
+  gint 		 height;
+
+  gint 		 duration;
+  gint 		 position;
+
+  GstPad 	*srcpad,
+  		*sinkpad1,
+  		*sinkpad2;
+
+  gint 		 type;
+  GstMask	*mask;
+};
+
+struct _GstSMPTEClass {
+  GstElementClass parent_class;
+};
+
+#endif /* __GST_SMPTE_H__ */
diff --git a/gst/smpte/paint.c b/gst/smpte/paint.c
new file mode 100644
index 00000000..0fb96d77
--- /dev/null
+++ b/gst/smpte/paint.c
@@ -0,0 +1,51 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "paint.h"
+
+void
+gst_smpte_paint_rect (guint8 *dest, gint stride, gint x, gint y, gint w, gint h, guint8 color)
+{ 
+  guint8 *d = dest + stride * y + x;
+  gint i;
+	      
+  for (i = 0; i < h; i++) {
+    memset (d, color, w);
+    d += stride; 
+  }
+}
+
+void
+gst_smpte_paint_rect_s (guint8 *dest, gint stride, gint x, gint y, gint w, gint h, guint8 color)
+{ 
+  guint8 *d = dest + stride * y + x;
+  gint i, j;
+  gint border = 100;
+
+  for (i = 0; i < h; i++) {
+    if (w - border > 0) {
+      memset (d, color, w - border);
+    }
+
+    for (j = 0; j < border - w; j++) {
+      *(d+w+j) = (color*(border-j)/border);
+    } 
+    d += stride; 
+  }
+}
diff --git a/gst/smpte/paint.h b/gst/smpte/paint.h
new file mode 100644
index 00000000..fc51a638
--- /dev/null
+++ b/gst/smpte/paint.h
@@ -0,0 +1,35 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_SMPTE_PAINT_H__
+#define __GST_SMPTE_PAINT_H__
+
+#include <glib.h>
+
+void 	gst_smpte_paint_rect 	(guint8 *dest, gint stride, 
+				 gint x, gint y, gint w, gint h, 
+				 guint8 color);
+
+void 	gst_smpte_paint_rect_s 	(guint8 *dest, gint stride, 
+				 gint x, gint y, gint w, gint h, 
+				 guint8 color);
+
+
+
+#endif /* __GST_SMPTE_PAINT_H__ */