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140 lines
4.6 KiB
C
140 lines
4.6 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstparse.h: get a pipeline from a text pipeline description
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_PARSE_H__
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#define __GST_PARSE_H__
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#include <gst/gstelement.h>
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G_BEGIN_DECLS
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GST_API
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GQuark gst_parse_error_quark (void);
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/**
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* GST_PARSE_ERROR:
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*
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* Get access to the error quark of the parse subsystem.
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*/
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#define GST_PARSE_ERROR gst_parse_error_quark ()
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/* FIXME 2.0: rename to GstParseLaunchError, this is not only related to
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*parsing */
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/**
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* GstParseError:
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* @GST_PARSE_ERROR_SYNTAX: A syntax error occurred.
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* @GST_PARSE_ERROR_NO_SUCH_ELEMENT: The description contained an unknown element
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* @GST_PARSE_ERROR_NO_SUCH_PROPERTY: An element did not have a specified property
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* @GST_PARSE_ERROR_LINK: There was an error linking two pads.
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* @GST_PARSE_ERROR_COULD_NOT_SET_PROPERTY: There was an error setting a property
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* @GST_PARSE_ERROR_EMPTY_BIN: An empty bin was specified.
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* @GST_PARSE_ERROR_EMPTY: An empty description was specified
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* @GST_PARSE_ERROR_DELAYED_LINK: A delayed link did not get resolved.
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*
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* The different parsing errors that can occur.
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*/
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typedef enum
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{
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GST_PARSE_ERROR_SYNTAX,
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GST_PARSE_ERROR_NO_SUCH_ELEMENT,
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GST_PARSE_ERROR_NO_SUCH_PROPERTY,
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GST_PARSE_ERROR_LINK,
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GST_PARSE_ERROR_COULD_NOT_SET_PROPERTY,
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GST_PARSE_ERROR_EMPTY_BIN,
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GST_PARSE_ERROR_EMPTY,
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GST_PARSE_ERROR_DELAYED_LINK
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} GstParseError;
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/**
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* GstParseFlags:
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* @GST_PARSE_FLAG_NONE: Do not use any special parsing options.
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* @GST_PARSE_FLAG_FATAL_ERRORS: Always return %NULL when an error occurs
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* (default behaviour is to return partially constructed bins or elements
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* in some cases)
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* @GST_PARSE_FLAG_NO_SINGLE_ELEMENT_BINS: If a bin only has a single element,
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* just return the element.
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* @GST_PARSE_FLAG_PLACE_IN_BIN: If more than one toplevel element is described
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* by the pipeline description string, put them in a #GstBin instead of a
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* #GstPipeline. (Since: 1.10)
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*
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* Parsing options.
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*/
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typedef enum
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{
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GST_PARSE_FLAG_NONE = 0,
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GST_PARSE_FLAG_FATAL_ERRORS = (1 << 0),
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GST_PARSE_FLAG_NO_SINGLE_ELEMENT_BINS = (1 << 1),
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GST_PARSE_FLAG_PLACE_IN_BIN = (1 << 2)
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} GstParseFlags;
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#define GST_TYPE_PARSE_CONTEXT (gst_parse_context_get_type())
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/**
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* GstParseContext:
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*
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* Opaque structure.
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*/
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typedef struct _GstParseContext GstParseContext;
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/* create, process and free a parse context */
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GST_API
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GType gst_parse_context_get_type (void);
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GST_API
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GstParseContext * gst_parse_context_new (void) G_GNUC_MALLOC;
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GST_API
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gchar ** gst_parse_context_get_missing_elements (GstParseContext * context) G_GNUC_MALLOC;
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GST_API
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void gst_parse_context_free (GstParseContext * context);
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GST_API
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GstParseContext * gst_parse_context_copy (const GstParseContext * context);
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/* parse functions */
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GST_API
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GstElement * gst_parse_launch (const gchar * pipeline_description,
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GError ** error) G_GNUC_MALLOC;
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GST_API
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GstElement * gst_parse_launchv (const gchar ** argv,
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GError ** error) G_GNUC_MALLOC;
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GST_API
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GstElement * gst_parse_launch_full (const gchar * pipeline_description,
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GstParseContext * context,
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GstParseFlags flags,
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GError ** error) G_GNUC_MALLOC;
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GST_API
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GstElement * gst_parse_launchv_full (const gchar ** argv,
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GstParseContext * context,
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GstParseFlags flags,
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GError ** error) G_GNUC_MALLOC;
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#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstParseContext, gst_parse_context_free)
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#endif
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G_END_DECLS
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#endif /* __GST_PARSE_H__ */
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