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-rw-r--r--gst/elements/gstidentity.c152
1 files changed, 152 insertions, 0 deletions
diff --git a/gst/elements/gstidentity.c b/gst/elements/gstidentity.c
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+++ b/gst/elements/gstidentity.c
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+/* Gnome-Streamer
+ * 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 <gstidentity.h>
+
+
+GstElementDetails gst_identity_details = {
+ "Identity",
+ "Filter",
+ "Pass data without modification",
+ VERSION,
+ "Erik Walthinsen <omega@cse.ogi.edu>",
+ "(C) 1999",
+};
+
+
+/* Identity signals and args */
+enum {
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum {
+ ARG_0,
+ ARG_CONTROL
+};
+
+
+static void gst_identity_class_init(GstIdentityClass *klass);
+static void gst_identity_init(GstIdentity *identity);
+static void gst_identity_set_arg(GtkObject *object,GtkArg *arg,guint id);
+static void gst_identity_get_arg(GtkObject *object,GtkArg *arg,guint id);
+
+
+static GstFilterClass *parent_class = NULL;
+static guint gst_identity_signals[LAST_SIGNAL] = { 0 };
+
+GtkType
+gst_identity_get_type(void) {
+ static GtkType identity_type = 0;
+
+ if (!identity_type) {
+ static const GtkTypeInfo identity_info = {
+ "GstIdentity",
+ sizeof(GstIdentity),
+ sizeof(GstIdentityClass),
+ (GtkClassInitFunc)gst_identity_class_init,
+ (GtkObjectInitFunc)gst_identity_init,
+ (GtkArgSetFunc)gst_identity_set_arg,
+ (GtkArgGetFunc)gst_identity_get_arg,
+ (GtkClassInitFunc)NULL,
+ };
+ identity_type = gtk_type_unique(GST_TYPE_FILTER,&identity_info);
+ }
+ return identity_type;
+}
+
+static void gst_identity_class_init(GstIdentityClass *klass) {
+ GtkObjectClass *gtkobject_class;
+ GstFilterClass *gstfilter_class;
+
+ gtkobject_class = (GtkObjectClass*)klass;
+ gstfilter_class = (GstFilterClass*)klass;
+
+ parent_class = gtk_type_class(GST_TYPE_FILTER);
+
+ gtk_object_add_arg_type("GstIdentity::control", GTK_TYPE_INT,
+ GTK_ARG_READWRITE, ARG_CONTROL);
+
+ gtkobject_class->set_arg = gst_identity_set_arg;
+ gtkobject_class->get_arg = gst_identity_get_arg;
+}
+
+static void gst_identity_init(GstIdentity *identity) {
+ identity->sinkpad = gst_pad_new("sink",GST_PAD_SINK);
+ gst_element_add_pad(GST_ELEMENT(identity),identity->sinkpad);
+ gst_pad_set_chain_function(identity->sinkpad,gst_identity_chain);
+ identity->srcpad = gst_pad_new("src",GST_PAD_SRC);
+ gst_element_add_pad(GST_ELEMENT(identity),identity->srcpad);
+
+ identity->control = 0;
+}
+
+GstElement *gst_identity_new(gchar *name) {
+ GstElement *identity = GST_ELEMENT(gtk_type_new(GST_TYPE_IDENTITY));
+ gst_element_set_name(GST_ELEMENT(identity),name);
+ return identity;
+}
+
+void gst_identity_chain(GstPad *pad,GstBuffer *buf) {
+ GstIdentity *identity;
+
+ g_return_if_fail(pad != NULL);
+ g_return_if_fail(GST_IS_PAD(pad));
+ g_return_if_fail(buf != NULL);
+
+ identity = GST_IDENTITY(pad->parent);
+// g_print("gst_identity_chain: got buffer in '%s'\n",
+// gst_element_get_name(GST_ELEMENT(identity)));
+ g_print("i");
+ gst_pad_push(identity->srcpad,buf);
+}
+
+static void gst_identity_set_arg(GtkObject *object,GtkArg *arg,guint id) {
+ GstIdentity *identity;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail(GST_IS_IDENTITY(object));
+ identity = GST_IDENTITY(object);
+
+ switch(id) {
+ case ARG_CONTROL:
+ identity->control = GTK_VALUE_INT(*arg);
+ break;
+ default:
+ break;
+ }
+}
+
+static void gst_identity_get_arg(GtkObject *object,GtkArg *arg,guint id) {
+ GstIdentity *identity;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail(GST_IS_IDENTITY(object));
+ identity = GST_IDENTITY(object);
+
+ switch (id) {
+ case ARG_CONTROL:
+ GTK_VALUE_INT(*arg) = identity->control;
+ break;
+ default:
+ arg->type = GTK_TYPE_INVALID;
+ break;
+ }
+}