* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
- * filename:
+ * gstparse.h: 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
*
* 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.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
*/
#ifndef __GST_PARSE_H__
#define __GST_PARSE_H__
-#include <gst/gstbin.h>
+#include <gst/gstelement.h>
G_BEGIN_DECLS
-#ifndef GST_DISABLE_PARSE
-
+GST_API
GQuark gst_parse_error_quark (void);
+/**
+ * GST_PARSE_ERROR:
+ *
+ * Get access to the error quark of the parse subsystem.
+ */
#define GST_PARSE_ERROR gst_parse_error_quark ()
+/* FIXME 2.0: rename to GstParseLaunchError, this is not only related to
+ *parsing */
+/**
+ * GstParseError:
+ * @GST_PARSE_ERROR_SYNTAX: A syntax error occurred.
+ * @GST_PARSE_ERROR_NO_SUCH_ELEMENT: The description contained an unknown element
+ * @GST_PARSE_ERROR_NO_SUCH_PROPERTY: An element did not have a specified property
+ * @GST_PARSE_ERROR_LINK: There was an error linking two pads.
+ * @GST_PARSE_ERROR_COULD_NOT_SET_PROPERTY: There was an error setting a property
+ * @GST_PARSE_ERROR_EMPTY_BIN: An empty bin was specified.
+ * @GST_PARSE_ERROR_EMPTY: An empty description was specified
+ * @GST_PARSE_ERROR_DELAYED_LINK: A delayed link did not get resolved.
+ *
+ * The different parsing errors that can occur.
+ */
typedef enum
{
GST_PARSE_ERROR_SYNTAX,
GST_PARSE_ERROR_NO_SUCH_PROPERTY,
GST_PARSE_ERROR_LINK,
GST_PARSE_ERROR_COULD_NOT_SET_PROPERTY,
+ GST_PARSE_ERROR_EMPTY_BIN,
+ GST_PARSE_ERROR_EMPTY,
+ GST_PARSE_ERROR_DELAYED_LINK
} GstParseError;
+/**
+ * GstParseFlags:
+ * @GST_PARSE_FLAG_NONE: Do not use any special parsing options.
+ * @GST_PARSE_FLAG_FATAL_ERRORS: Always return %NULL when an error occurs
+ * (default behaviour is to return partially constructed bins or elements
+ * in some cases)
+ * @GST_PARSE_FLAG_NO_SINGLE_ELEMENT_BINS: If a bin only has a single element,
+ * just return the element.
+ * @GST_PARSE_FLAG_PLACE_IN_BIN: If more than one toplevel element is described
+ * by the pipeline description string, put them in a #GstBin instead of a
+ * #GstPipeline. (Since: 1.10)
+ *
+ * Parsing options.
+ */
+typedef enum
+{
+ GST_PARSE_FLAG_NONE = 0,
+ GST_PARSE_FLAG_FATAL_ERRORS = (1 << 0),
+ GST_PARSE_FLAG_NO_SINGLE_ELEMENT_BINS = (1 << 1),
+ GST_PARSE_FLAG_PLACE_IN_BIN = (1 << 2)
+} GstParseFlags;
+
+#define GST_TYPE_PARSE_CONTEXT (gst_parse_context_get_type())
+
+/**
+ * GstParseContext:
+ *
+ * Opaque structure.
+ */
+typedef struct _GstParseContext GstParseContext;
+
+/* create, process and free a parse context */
+
+GST_API
+GType gst_parse_context_get_type (void);
+
+GST_API
+GstParseContext * gst_parse_context_new (void) G_GNUC_MALLOC;
+
+GST_API
+gchar ** gst_parse_context_get_missing_elements (GstParseContext * context) G_GNUC_MALLOC;
+
+GST_API
+void gst_parse_context_free (GstParseContext * context);
+
+GST_API
+GstParseContext * gst_parse_context_copy (const GstParseContext * context);
-GstElement* gst_parse_launch (const gchar *pipeline_description, GError **error);
-GstElement* gst_parse_launchv (const gchar **argv, GError **error);
-#else /* GST_DISABLE_PARSE */
+/* parse functions */
-#pragma GCC poison gst_parse_launch
-#pragma GCC poison gst_parse_launchv
+GST_API
+GstElement * gst_parse_launch (const gchar * pipeline_description,
+ GError ** error) G_GNUC_MALLOC;
+GST_API
+GstElement * gst_parse_launchv (const gchar ** argv,
+ GError ** error) G_GNUC_MALLOC;
+GST_API
+GstElement * gst_parse_launch_full (const gchar * pipeline_description,
+ GstParseContext * context,
+ GstParseFlags flags,
+ GError ** error) G_GNUC_MALLOC;
+GST_API
+GstElement * gst_parse_launchv_full (const gchar ** argv,
+ GstParseContext * context,
+ GstParseFlags flags,
+ GError ** error) G_GNUC_MALLOC;
-#endif /* GST_DISABLE_PARSE */
+#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstParseContext, gst_parse_context_free)
+#endif
G_END_DECLS