gstreamer/gst/gsttype.h
Wim Taymans c125059f97 Added the excellent mpeg2dec decoder. Not 100% optimized but allready very fast.
Original commit message from CVS:
Added the excellent mpeg2dec decoder. Not 100% optimized but allready
very fast.
More cleanup.
2000-11-04 18:54:07 +00:00

91 lines
2.8 KiB
C

/* 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.
*/
#ifndef __GST_TYPE_H__
#define __GST_TYPE_H__
#include <gst/gstbuffer.h>
#include <gst/gstelement.h>
/* type of function used to check a stream for equality with type */
typedef gboolean (*GstTypeFindFunc) (GstBuffer *buf,gpointer priv);
typedef struct _GstType GstType;
typedef struct _GstTypeFactory GstTypeFactory;
struct _GstType {
guint16 id; /* type id (assigned) */
gchar *mime; /* MIME type */
gchar *exts; /* space-delimited list of extensions */
GstTypeFindFunc typefindfunc; /* typefind function */
GList *srcs; /* list of src objects for this type */
GList *sinks; /* list of sink objects for type */
GHashTable *converters; /* a hashtable of factories that can convert
from this type to destination type. The
factories are indexed by destination type */
};
struct _GstTypeFactory {
gchar *mime;
gchar *exts;
GstTypeFindFunc typefindfunc;
};
/* initialize the subsystem */
void _gst_type_initialize (void);
/* create a new type, or find/merge an existing one */
guint16 gst_type_register (GstTypeFactory *factory);
/* look up a type by mime or extension */
guint16 gst_type_find_by_mime (gchar *mime);
guint16 gst_type_find_by_ext (gchar *ext);
/* add src or sink object */
void gst_type_add_src (guint16 id, GstElementFactory *src);
void gst_type_add_sink (guint16 id, GstElementFactory *sink);
/* get list of src or sink objects */
GList* gst_type_get_srcs (guint16 id);
GList* gst_type_get_sinks (guint16 id);
/* get GstType by id */
GstType* gst_type_find_by_id (guint16 id);
GList* gst_type_get_sink_to_src (guint16 sinkid, guint16 srcid);
/* get the list of registered types (returns list of GstType!) */
GList* gst_type_get_list (void);
void gst_type_dump (void);
xmlNodePtr gst_type_save_thyself (GstType *type, xmlNodePtr parent);
guint16 gst_type_load_thyself (xmlNodePtr parent);
xmlNodePtr gst_typefactory_save_thyself (GstTypeFactory *factory, xmlNodePtr parent);
GstTypeFactory* gst_typefactory_load_thyself (xmlNodePtr parent);
#endif /* __GST_TYPE_H__ */