--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gstreamer_core/gst/gstparse.c	Thu Dec 17 08:53:32 2009 +0200
@@ -0,0 +1,188 @@
+/* GStreamer
+ * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
+ *                    2000 Wim Taymans <wtay@chello.be>
+ *                    2002 Andy Wingo <wingo@pobox.com>
+ *
+ * gstparse.c: get a pipeline from a text pipeline description
+ *
+ * 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:gstparse
+ * @short_description: Get a pipeline from a text pipeline description
+ *
+ * These function allow to create a pipeline based on the syntax used in the
+ * gst-launch utillity.
+ */
+
+
+#include "gst_private.h"
+#include <string.h>
+
+#include "gstparse.h"
+#include "gsterror.h"
+#include "gstinfo.h"
+
+extern GstElement *_gst_parse_launch (const gchar *, GError **);
+
+/**
+ * gst_parse_error_quark:
+ *
+ * Get the error quark used by the parsing subsystem.
+ *
+ * Returns: the quark of the parse errors.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+
+GQuark
+gst_parse_error_quark (void)
+{
+  static GQuark quark = 0;
+
+  if (!quark)
+    quark = g_quark_from_static_string ("gst_parse_error");
+  return quark;
+}
+
+#ifndef GST_DISABLE_PARSE
+static gchar *
+_gst_parse_escape (const gchar * str)
+{
+  GString *gstr = NULL;
+  gchar *newstr = NULL;
+
+  g_return_val_if_fail (str != NULL, NULL);
+
+  gstr = g_string_sized_new (strlen (str));
+
+  while (*str) {
+    if (*str == ' ')
+      g_string_append_c (gstr, '\\');
+    g_string_append_c (gstr, *str);
+    str++;
+  }
+
+  newstr = gstr->str;
+  g_string_free (gstr, FALSE);
+
+  return newstr;
+}
+#endif /* !GST_DISABLE_PARSE */
+
+/**
+ * gst_parse_launchv:
+ * @argv: null-terminated array of arguments
+ * @error: pointer to a #GError
+ *
+ * Create a new element based on command line syntax.
+ * @error will contain an error message if an erroneuos pipeline is specified.
+ * An error does not mean that the pipeline could not be constructed.
+ *
+ * Returns: a new element on success and %NULL on failure.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+
+GstElement *
+gst_parse_launchv (const gchar ** argv, GError ** error)
+{
+#ifndef GST_DISABLE_PARSE
+  GstElement *element;
+  GString *str;
+  const gchar **argvp, *arg;
+  gchar *tmp;
+
+  g_return_val_if_fail (argv != NULL, NULL);
+
+  /* let's give it a nice size. */
+  str = g_string_sized_new (1024);
+
+  argvp = argv;
+  while (*argvp) {
+    arg = *argvp;
+    tmp = _gst_parse_escape (arg);
+    g_string_append (str, tmp);
+    g_free (tmp);
+    g_string_append_c (str, ' ');
+    argvp++;
+  }
+
+  element = gst_parse_launch (str->str, error);
+
+  g_string_free (str, TRUE);
+
+  return element;
+#else
+  gchar *msg;
+
+  GST_WARNING ("Disabled API called: gst_parse_launchv()");
+
+  msg = gst_error_get_message (GST_CORE_ERROR, GST_CORE_ERROR_DISABLED);
+  g_set_error (error, GST_CORE_ERROR, GST_CORE_ERROR_DISABLED, "%s", msg);
+  g_free (msg);
+
+  return NULL;
+#endif
+}
+
+/**
+ * gst_parse_launch:
+ * @pipeline_description: the command line describing the pipeline
+ * @error: the error message in case of an erroneous pipeline.
+ *
+ * Create a new pipeline based on command line syntax.
+ * Please note that you might get a return value that is not %NULL even though
+ * the @error is set. In this case there was a recoverable parsing error and you
+ * can try to play the pipeline.
+ *
+ * Returns: a new element on success, %NULL on failure. If more than one toplevel
+ * element is specified by the @pipeline_description, all elements are put into
+ * a #GstPipeline, which than is returned.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+
+GstElement *
+gst_parse_launch (const gchar * pipeline_description, GError ** error)
+{
+#ifndef GST_DISABLE_PARSE
+  GstElement *element;
+
+  g_return_val_if_fail (pipeline_description != NULL, NULL);
+
+  GST_CAT_INFO (GST_CAT_PIPELINE, "parsing pipeline description %s",
+      pipeline_description);
+
+  element = _gst_parse_launch (pipeline_description, error);
+
+  return element;
+#else
+  gchar *msg;
+
+  GST_WARNING ("Disabled API called: gst_parse_launch()");
+
+  msg = gst_error_get_message (GST_CORE_ERROR, GST_CORE_ERROR_DISABLED);
+  g_set_error (error, GST_CORE_ERROR, GST_CORE_ERROR_DISABLED, "%s", msg);
+  g_free (msg);
+
+  return NULL;
+#endif
+}