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// -*- c++ -*-
// Generated by gmmproc 2.42.0 -- DO NOT MODIFY!
#ifndef _GSTREAMERMM_PARSE_H
#define _GSTREAMERMM_PARSE_H


#include <glibmm/ustring.h>
#include <sigc++/sigc++.h>

/* gstreamermm - a C++ wrapper for gstreamer
 *
 * Copyright 2008 The gstreamermm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <gst/gst.h>


namespace Gst
{

class Element;

/** The different parsing errors that can occur.
 *
 * - SYNTAX - A syntax error occured.
 * - NO_SUCH_ELEMENT - The description contained an unknown element
 * - NO_SUCH_PROPERTY - An element did not have a specified property
 * - LINK - There was an error linking two pads.
 * - COULD_NOT_SET_PROPERTY - There was an error setting a property
 * - EMPTY_BIN - An empty bin was specified.
 * - EMPTY - An empty description was specified
 */
class ParseError : public Glib::Error
{
public:
  enum Code
  {
    SYNTAX,
    NO_SUCH_ELEMENT,
    NO_SUCH_PROPERTY,
    LINK,
    COULD_NOT_SET_PROPERTY,
    EMPTY_BIN,
    EMPTY
  };

  ParseError(Code error_code, const Glib::ustring& error_message);
  explicit ParseError(GError* gobject);
  Code code() const;

#ifndef DOXYGEN_SHOULD_SKIP_THIS
private:

  static void throw_func(GError* gobject);

  friend void wrap_init(); // uses throw_func()

  #endif //DOXYGEN_SHOULD_SKIP_THIS
};

} // namespace Gst

#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace Glib
{

template <>
class Value<Gst::ParseError::Code> : public Glib::Value_Enum<Gst::ParseError::Code>
{
public:
  static GType value_type() G_GNUC_CONST;
};

} // namespace Glib
#endif /* DOXYGEN_SHOULD_SKIP_THIS */


namespace Gst
{


/** A class that gets a pipeline from a text pipeline description.
 * The methods in this class allow to create a pipeline based on the syntax
 * used in the gst-launch utillity.
 */
class Parse
{
public:
  /** Get the error quark used by the parsing subsystem.
   * @return The quark of the parse errors.
   */
  static Glib::QueryQuark error_quark();

  /** Create a new pipeline based on command line syntax. Please note that you
   * might get a return value that is not a null RefPtr<> even though the error
   * is set. In this case there was a recoverable parsing error and you can try
   * to play the pipeline.
   * @param pipeline_description The command line describing the pipeline.
   * @param error The error message in case of an erroneous pipeline.
   * @return A new element on success, a null RefPtr<> on failure. If more than
   * one toplevel element is specified by the pipeline_description, all
   * elements are put into a Gst::Pipeline, which than is returned.
   * @throw Gst::CoreError
   * @throw Gst::ParseError
   */
  static Glib::RefPtr<Gst::Element> launch(const Glib::ustring& pipeline_description);

  /** Create a new element based on command line syntax. An error does not
   * mean that the pipeline could not be constructed.
   * @param argv null-terminated array of arguments.
   * @param error Will contain an error message if an erroneuos pipeline is
   * specified. 
   * @return A new element on success and null on failure.
   * @throw Gst::CoreError
   * @throw Gst::ParseError
   */
  static Glib::RefPtr<Gst::Element> launchv(const gchar *argv[]);

  /** This is a convenience wrapper around launch() to create a Gst::Bin from a
   * gst-launch-style pipeline description. See launch() and the gst-launch man
   * page for details about the syntax. Ghost pads on the bin for unconnected
   * source or sink pads within the bin can automatically be created (but only
   * a maximum of one ghost pad for each direction will be created; if you
   * expect multiple unconnected source pads or multiple unconnected sink pads
   * and want them all ghosted, you will have to create the ghost pads
   * yourself).
   *
   * @param bin_description Command line describing the bin.
   * @param ghost_unconnected_pads Whether to automatically create ghost pads
   * for unconnected source or sink pads within the bin.
   * @param err Where to store the error message in case of an error.
   * @return A newly-created bin, or a null RefPtr<> if an error occurred.
   * @throw Gst::CoreError
   * @throw Gst::ParseError
   */
  static Glib::RefPtr<Gst::Element> create_bin(const Glib::ustring& bin_description, bool ghost_unconnected_pads);
};

} // namespace Gst


#endif /* _GSTREAMERMM_PARSE_H */