check in GESTrackOperation

docs/libs/ges-sections.txt

@@ -79,6 +79,22 @@ GES_IS_TRACK_SOURCE_CLASS
 ges_track_source_get_type
 </SECTION>
 
+<SECTION>
+<FILE>ges-track-operation</FILE>
+<TITLE>GESTrackOperation</TITLE>
+GESTrackOperation
+GESTrackOperationClass
+ges_track_operation_get_type
+ges_track_operation_new
+<SUBSECTION Standard>
+GES_IS_TRACK_OPERATION
+GES_IS_TRACK_OPERATION_CLASS
+GES_TRACK_OPERATION
+GES_TRACK_OPERATION_CLASS
+GES_TRACK_OPERATION_GET_CLASS
+GES_TYPE_TRACK_OPERATION
+</SECTION>
+
 <SECTION>
 <FILE>ges-track-filesource</FILE>
 <TITLE>GESTrackFileSource</TITLE>

ges/Makefile.am

@@ -24,6 +24,7 @@ libges_@GST_MAJORMINOR@_la_SOURCES = 		\
 	ges-track.c				\
 	ges-track-object.c			\
 	ges-track-source.c			\
+	ges-track-operation.c			\
 	ges-track-filesource.c			\
 	ges-track-transition.c			\
 	ges-track-audio-transition.c			\
@@ -55,6 +56,7 @@ libges_@GST_MAJORMINOR@include_HEADERS = 	\
 	ges-track.h				\
 	ges-track-object.h			\
 	ges-track-source.h			\
+	ges-track-operation.h			\
 	ges-track-filesource.h			\
 	ges-track-transition.h			\
 	ges-track-audio-transition.h			\

ges/ges-track-operation.c

@@ -0,0 +1,118 @@
+/* GStreamer Editing Services
+ * Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
+ *               2009 Nokia Corporation
+ *
+ * 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.
+ */
+
+/**
+ * SECTION:ges-track-operation
+ * @short_description: Base Class for single-media operations
+ */
+
+#include "ges-internal.h"
+#include "ges-track-object.h"
+#include "ges-track-operation.h"
+
+G_DEFINE_TYPE (GESTrackOperation, ges_track_operation, GES_TYPE_TRACK_OBJECT);
+
+static void
+ges_track_operation_get_property (GObject * object, guint property_id,
+    GValue * value, GParamSpec * pspec)
+{
+  switch (property_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+  }
+}
+
+static void
+ges_track_operation_set_property (GObject * object, guint property_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  switch (property_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+  }
+}
+
+static void
+ges_track_operation_dispose (GObject * object)
+{
+  G_OBJECT_CLASS (ges_track_operation_parent_class)->dispose (object);
+}
+
+static void
+ges_track_operation_finalize (GObject * object)
+{
+  G_OBJECT_CLASS (ges_track_operation_parent_class)->finalize (object);
+}
+
+static gboolean
+ges_track_operation_create_gnl_object (GESTrackObject * object)
+{
+  GESTrackOperationClass *klass = NULL;
+  GESTrackOperation *self = NULL;
+  GstElement *child = NULL;
+  GstElement *gnlobject;
+
+  self = GES_TRACK_OPERATION (object);
+  klass = GES_TRACK_OPERATION_GET_CLASS (self);
+
+  gnlobject = gst_element_factory_make ("gnloperation", NULL);
+
+  if (klass->create_element) {
+    child = klass->create_element (self);
+
+    if (G_UNLIKELY (!child)) {
+      GST_ERROR ("create_element returned NULL");
+      return TRUE;
+    }
+
+    gst_bin_add (GST_BIN (gnlobject), child);
+    self->element = child;
+  }
+
+  object->gnlobject = gnlobject;
+
+  return TRUE;
+}
+
+static void
+ges_track_operation_class_init (GESTrackOperationClass * klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GESTrackObjectClass *track_class = GES_TRACK_OBJECT_CLASS (klass);
+
+  object_class->get_property = ges_track_operation_get_property;
+  object_class->set_property = ges_track_operation_set_property;
+  object_class->dispose = ges_track_operation_dispose;
+  object_class->finalize = ges_track_operation_finalize;
+
+  track_class->create_gnl_object = ges_track_operation_create_gnl_object;
+  klass->create_element = NULL;
+}
+
+static void
+ges_track_operation_init (GESTrackOperation * self)
+{
+}
+
+GESTrackOperation *
+ges_track_operation_new (void)
+{
+  return g_object_new (GES_TYPE_TRACK_OPERATION, NULL);
+}

ges/ges-track-operation.h

@@ -0,0 +1,84 @@
+/* GStreamer Editing Services
+ * Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
+ *               2009 Nokia Corporation
+ *
+ * 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 _GES_TRACK_OPERATION
+#define _GES_TRACK_OPERATION
+
+#include <glib-object.h>
+#include <gst/gst.h>
+#include <ges/ges-types.h>
+#include <ges/ges-track-object.h>
+
+G_BEGIN_DECLS
+
+#define GES_TYPE_TRACK_OPERATION ges_track_operation_get_type()
+
+#define GES_TRACK_OPERATION(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_TRACK_OPERATION, GESTrackOperation))
+
+#define GES_TRACK_OPERATION_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_TRACK_OPERATION, GESTrackOperationClass))
+
+#define GES_IS_TRACK_OPERATION(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_TRACK_OPERATION))
+
+#define GES_IS_TRACK_OPERATION_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_TRACK_OPERATION))
+
+#define GES_TRACK_OPERATION_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_TRACK_OPERATION, GESTrackOperationClass))
+
+/**
+ * GESTrackOperation:
+ * @parent: parent
+ *
+ * Base class for overlays, transitions, and effects
+ *
+ */
+
+struct _GESTrackOperation {
+  /*< public >*/
+  GESTrackObject parent;
+  /*< private >*/
+  GstElement *element;
+};
+
+/**
+ * GESTrackOperationClass:
+ * @parent_class: the parent class
+ * @create_element: method to create the gstreamer element which fills the
+ * gnlobject
+ *
+ * Base class for track objects which produce data but do not consuem it.
+ *
+ */
+
+struct _GESTrackOperationClass {
+  GESTrackObjectClass parent_class;
+  GstElement *(*create_element) (GESTrackOperation *);
+};
+
+GType ges_track_operation_get_type (void);
+
+GESTrackOperation* ges_track_operation_new (void);
+
+G_END_DECLS
+
+#endif /* _GES_TRACK_OPERATION */

ges/ges-types.h

@@ -66,6 +66,9 @@ typedef struct _GESTrackObjectClass GESTrackObjectClass;
 typedef struct _GESTrackSource GESTrackSource;
 typedef struct _GESTrackSourceClass GESTrackSourceClass;
 
+typedef struct _GESTrackOperation GESTrackOperation;
+typedef struct _GESTrackOperationClass GESTrackOperationClass;
+
 typedef struct _GESTrackFileSource GESTrackFileSource;
 typedef struct _GESTrackFileSourceClass GESTrackFileSourceClass;