gst/debug/gsttaginject.*: Now actually adding the new element.

Original commit message from CVS:
* gst/debug/gsttaginject.c:
* gst/debug/gsttaginject.h:
Now actually adding the new element.

ChangeLog

@@ -1,3 +1,9 @@
+2008-06-11  Stefan Kost  <ensonic@users.sf.net>
+
+	* gst/debug/gsttaginject.c:
+	* gst/debug/gsttaginject.h:
+	  Now actually adding the new element.
+
 2008-06-11  Stefan Kost  <ensonic@users.sf.net>
 
 	* docs/plugins/Makefile.am:

gst/debug/gsttaginject.c

@@ -0,0 +1,185 @@
+/* GStreamer
+ * Copyright (C) 2008 Stefan Kost <ensonic@users.sf.net>
+ *
+ * gsttaginject.c:
+ *
+ * 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:element-taginject
+ *
+ * Element that inject new metadata tags, but passes incomming data through
+ * unmodified.
+ * |[
+ * gst-launch audiotestsrc num-buffers=100 ! taginject tags="title=testsrc,artist=gstreamer" ! vorbisenc ! oggmux ! filesink location=test.ogg
+ * ]|
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include <stdlib.h>
+
+#include "gsttaginject.h"
+
+static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+GST_DEBUG_CATEGORY_STATIC (gst_tag_inject_debug);
+#define GST_CAT_DEFAULT gst_tag_inject_debug
+
+enum
+{
+  PROP_TAGS = 1,
+};
+
+
+#define DEBUG_INIT(bla) \
+    GST_DEBUG_CATEGORY_INIT (gst_tag_inject_debug, "taginject", 0, "tag inject element");
+
+GST_BOILERPLATE_FULL (GstTagInject, gst_tag_inject, GstBaseTransform,
+    GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
+
+static void gst_tag_inject_finalize (GObject * object);
+static void gst_tag_inject_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec);
+static void gst_tag_inject_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec);
+
+//static GstFlowReturn gst_tag_inject_transform_ip (GstBaseTransform * trans,
+//    GstBuffer * buf);
+static gboolean gst_tag_inject_start (GstBaseTransform * trans);
+
+
+static void
+gst_tag_inject_base_init (gpointer g_class)
+{
+  GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
+
+  gst_element_class_set_details_simple (gstelement_class,
+      "TagInject",
+      "Generic", "inject metadata tags", "Stefan Kost <ensonic@users.sf.net>");
+  gst_element_class_add_pad_template (gstelement_class,
+      gst_static_pad_template_get (&srctemplate));
+  gst_element_class_add_pad_template (gstelement_class,
+      gst_static_pad_template_get (&sinktemplate));
+}
+
+static void
+gst_tag_inject_finalize (GObject * object)
+{
+  GstTagInject *self = GST_TAG_INJECT (object);
+
+  gst_tag_list_free (self->tags);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_tag_inject_class_init (GstTagInjectClass * klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+  GstBaseTransformClass *gstbasetrans_class;
+
+  gobject_class = G_OBJECT_CLASS (klass);
+  gstelement_class = GST_ELEMENT_CLASS (klass);
+  gstbasetrans_class = GST_BASE_TRANSFORM_CLASS (klass);
+
+  gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_tag_inject_set_property);
+  gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_tag_inject_get_property);
+
+  g_object_class_install_property (gobject_class, PROP_TAGS,
+      g_param_spec_string ("tags", "taglist",
+          "List of tags to inject into the target file",
+          NULL, G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
+
+  gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_tag_inject_finalize);
+
+  //gstbasetrans_class->transform_ip =
+  //    GST_DEBUG_FUNCPTR (gst_tag_inject_transform_ip);
+  gstbasetrans_class->start = GST_DEBUG_FUNCPTR (gst_tag_inject_start);
+}
+
+static void
+gst_tag_inject_init (GstTagInject * self, GstTagInjectClass * g_class)
+{
+  self->tags = NULL;
+}
+
+/*
+static GstFlowReturn
+gst_tag_inject_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
+{
+  //GstTagInject *self = GST_TAG_INJECT (trans);
+
+  return GST_FLOW_OK;
+}
+*/
+
+static void
+gst_tag_inject_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstTagInject *self = GST_TAG_INJECT (object);
+  gchar *structure;
+
+  switch (prop_id) {
+    case PROP_TAGS:
+      structure = g_strdup_printf ("taglist,%s", g_value_get_string (value));
+      self->tags = gst_structure_from_string (structure, NULL);
+      g_free (structure);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_tag_inject_get_property (GObject * object, guint prop_id, GValue * value,
+    GParamSpec * pspec)
+{
+  /*GstTagInject *self = GST_TAG_INJECT (object); */
+
+  switch (prop_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static gboolean
+gst_tag_inject_start (GstBaseTransform * trans)
+{
+  GstTagInject *self = GST_TAG_INJECT (trans);
+
+  /* send tags */
+  if (!gst_tag_list_is_empty (self->tags)) {
+    gst_element_found_tags (GST_ELEMENT (trans),
+        gst_tag_list_copy (self->tags));
+  }
+
+  return TRUE;
+}

gst/debug/gsttaginject.h

@@ -0,0 +1,67 @@
+/* GStreamer
+ * Copyright (C) 2008 Stefan Kost <ensonic@users.sf.net>
+ *
+ * gsttaginject.h:
+ *
+ * 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_TAG_INJECT_H__
+#define __GST_TAG_INJECT_H__
+
+
+#include <gst/gst.h>
+#include <gst/base/gstbasetransform.h>
+
+G_BEGIN_DECLS
+
+
+#define GST_TYPE_TAG_INJECT \
+  (gst_tag_inject_get_type())
+#define GST_TAG_INJECT(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TAG_INJECT,GstTagInject))
+#define GST_TAG_INJECT_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TAG_INJECT,GstTagInjectClass))
+#define GST_IS_TAG_INJECT(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TAG_INJECT))
+#define GST_IS_TAG_INJECT_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TAG_INJECT))
+
+typedef struct _GstTagInject GstTagInject;
+typedef struct _GstTagInjectClass GstTagInjectClass;
+
+/**
+ * GstTagInject:
+ *
+ * Opaque #GstTagInject data structure
+ */
+struct _GstTagInject {
+  GstBaseTransform 	 element;
+
+  /*< private >*/
+  GstTagList *tags;
+};
+
+struct _GstTagInjectClass {
+  GstBaseTransformClass parent_class;
+};
+
+GType gst_tag_inject_get_type(void);
+
+G_END_DECLS
+
+#endif /* __GST_TAG_INJECT_H__ */