Add videoflip, created from template.

Original commit message from CVS:
Add videoflip, created from template.

1 files changed, 272 insertions, 0 deletions

diff --git a/gst/videofilter/gstvideoflip.c b/gst/videofilter/gstvideoflip.c
new file mode 100644
index 00000000..646cc1e2
--- /dev/null
+++ b/gst/videofilter/gstvideoflip.c
@@ -0,0 +1,272 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ * Copyright (C) <2003> David Schleef <ds@schleef.org>
+ *
+ * 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.
+ */
+
+
+/*#define DEBUG_ENABLED */
+#include <gstvideoflip.h>
+
+
+/* elementfactory information */
+static GstElementDetails videoflip_details = {
+  "Video Filter Template",
+  "Filter/Video",
+  "LGPL",
+  "Template for a video filter",
+  VERSION,
+  "David Schleef <ds@schleef.org>",
+  "(C) 2003",
+};
+
+/* GstVideoflip signals and args */
+enum {
+  /* FILL ME */
+  LAST_SIGNAL
+};
+
+enum {
+  ARG_0,
+  /* FILL ME */
+};
+
+static void	gst_videoflip_class_init	(GstVideoflipClass *klass);
+static void	gst_videoflip_init		(GstVideoflip *videoflip);
+
+static void	gst_videoflip_set_property		(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
+static void	gst_videoflip_get_property		(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
+
+static void gst_videoflip_planar411(GstVideofilter *videofilter, void *dest, void *src);
+static void gst_videoflip_setup(GstVideofilter *videofilter);
+
+static GstVideoflipClass *this_class = NULL;
+static GstVideofilterClass *parent_class = NULL;
+static GstElementClass *element_class = NULL;
+
+GType
+gst_videoflip_get_type (void)
+{
+  static GType videoflip_type = 0;
+
+  if (!videoflip_type) {
+    static const GTypeInfo videoflip_info = {
+      sizeof(GstVideoflipClass),      NULL,
+      NULL,
+      (GClassInitFunc)gst_videoflip_class_init,
+      NULL,
+      NULL,
+      sizeof(GstVideoflip),
+      0,
+      (GInstanceInitFunc)gst_videoflip_init,
+    };
+    videoflip_type = g_type_register_static(GST_TYPE_VIDEOFILTER, "GstVideoflip", &videoflip_info, 0);
+  }
+  return videoflip_type;
+}
+
+static GstVideofilterFormat gst_videoflip_formats[] = {
+  { "I420", 12, gst_videoflip_planar411, },
+};
+
+static void
+gst_videoflip_class_init (GstVideoflipClass *klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+  GstVideofilterClass *gstvideofilter_class;
+  int i;
+
+  gobject_class = (GObjectClass*)klass;
+  gstelement_class = (GstElementClass*)klass;
+  gstvideofilter_class = (GstVideofilterClass *)klass;
+
+#if 0
+  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_METHOD,
+      g_param_spec_enum("method","method","method",
+      GST_TYPE_VIDEOFLIP_METHOD, GST_VIDEOFLIP_METHOD_90R,
+      G_PARAM_READWRITE));
+#endif
+
+  this_class = klass;
+  parent_class = g_type_class_ref(GST_TYPE_VIDEOFILTER);
+  element_class = g_type_class_ref(GST_TYPE_ELEMENT);
+
+  gobject_class->set_property = gst_videoflip_set_property;
+  gobject_class->get_property = gst_videoflip_get_property;
+
+  gstvideofilter_class->setup = gst_videoflip_setup;
+
+  for(i=0;i<G_N_ELEMENTS(gst_videoflip_formats);i++){
+    gst_videofilter_class_add_format(parent_class, gst_videoflip_formats + i);
+  }
+}
+
+static GstCaps *gst_videoflip_get_capslist(void)
+{
+  GstVideofilterClass *klass;
+
+  klass = g_type_class_ref(GST_TYPE_VIDEOFILTER);
+
+  return gst_videofilter_class_get_capslist(klass);
+}
+
+static GstPadTemplate *
+gst_videoflip_src_template_factory(void)
+{
+  static GstPadTemplate *templ = NULL;
+
+  if(!templ){
+    GstCaps *caps = GST_CAPS_NEW("src","video/raw",
+		"width", GST_PROPS_INT_RANGE (0, G_MAXINT),
+		"height", GST_PROPS_INT_RANGE (0, G_MAXINT));
+
+    caps = gst_caps_intersect(caps, gst_videoflip_get_capslist ());
+
+    templ = GST_PAD_TEMPLATE_NEW("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
+  }
+  return templ;
+}
+
+static GstPadTemplate *
+gst_videoflip_sink_template_factory(void)
+{
+  static GstPadTemplate *templ = NULL;
+
+  if(!templ){
+    GstCaps *caps = GST_CAPS_NEW("sink","video/raw",
+		"width", GST_PROPS_INT_RANGE (0, G_MAXINT),
+		"height", GST_PROPS_INT_RANGE (0, G_MAXINT));
+
+    caps = gst_caps_intersect(caps, gst_videoflip_get_capslist ());
+
+    templ = GST_PAD_TEMPLATE_NEW("src", GST_PAD_SINK, GST_PAD_ALWAYS, caps);
+  }
+  return templ;
+}
+
+static void
+gst_videoflip_init (GstVideoflip *videoflip)
+{
+  GstVideofilter *videofilter;
+
+  GST_DEBUG("gst_videoflip_init");
+
+  videofilter = GST_VIDEOFILTER(videoflip);
+
+  videofilter->sinkpad = gst_pad_new_from_template (
+		  GST_PAD_TEMPLATE_GET (gst_videoflip_sink_template_factory),
+		  "sink");
+
+  videofilter->srcpad = gst_pad_new_from_template (
+		  GST_PAD_TEMPLATE_GET (gst_videoflip_src_template_factory),
+		  "src");
+
+  gst_videofilter_postinit(GST_VIDEOFILTER(videoflip));
+}
+
+static void
+gst_videoflip_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+  GstVideoflip *src;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail(GST_IS_VIDEOFLIP(object));
+  src = GST_VIDEOFLIP(object);
+
+  GST_DEBUG("gst_videoflip_set_property");
+  switch (prop_id) {
+#if 0
+    case ARG_METHOD:
+      src->method = g_value_get_enum (value);
+      break;
+#endif
+    default:
+      break;
+  }
+}
+
+static void
+gst_videoflip_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+  GstVideoflip *src;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail(GST_IS_VIDEOFLIP(object));
+  src = GST_VIDEOFLIP(object);
+
+  switch (prop_id) {
+#if 0
+    case ARG_METHOD:
+      g_value_set_enum (value, src->method);
+      break;
+#endif
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static gboolean plugin_init (GModule *module, GstPlugin *plugin)
+{
+  GstElementFactory *factory;
+
+  if(!gst_library_load("gstvideofilter"))
+    return FALSE;
+
+  /* create an elementfactory for the videoflip element */
+  factory = gst_element_factory_new("videoflip",GST_TYPE_VIDEOFLIP,
+                                   &videoflip_details);
+  g_return_val_if_fail(factory != NULL, FALSE);
+
+  gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (gst_videoflip_sink_template_factory));
+  gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (gst_videoflip_src_template_factory));
+
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+  return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "videoflip",
+  plugin_init
+};
+
+static void gst_videoflip_setup(GstVideofilter *videofilter)
+{
+  GstVideoflip *videoflip;
+
+  g_return_if_fail(GST_IS_VIDEOFLIP(videofilter));
+  videoflip = GST_VIDEOFLIP(videofilter);
+
+  /* if any setup needs to be done, do it here */
+
+}
+
+static void gst_videoflip_planar411(GstVideofilter *videofilter,
+    void *dest, void *src)
+{
+  GstVideoflip *videoflip;
+
+  g_return_if_fail(GST_IS_VIDEOFLIP(videofilter));
+  videoflip = GST_VIDEOFLIP(videofilter);
+
+  /* do something interesting here */
+}
+