/* GStreamer * Copyright (C) 1999,2000 Erik Walthinsen * 2000 Wim Taymans * * gstprops.h: Header for properties subsystem * * 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_PROPS_H__ #define __GST_PROPS_H__ #include #include // NOTE: this is xml-config's fault // Include compatability defines: if libxml hasn't already defined these, // we have an old version 1.x #ifndef xmlChildrenNode #define xmlChildrenNode childs #define xmlRootNode root #endif typedef struct _GstProps GstProps; typedef enum { GST_PROPS_END_ID = 0, GST_PROPS_LIST_ID, GST_PROPS_INT_ID, GST_PROPS_INT_RANGE_ID, GST_PROPS_FLOAT_ID, GST_PROPS_FLOAT_RANGE_ID, GST_PROPS_FOURCC_ID, GST_PROPS_BOOL_ID, GST_PROPS_STRING_ID, GST_PROPS_LAST_ID = GST_PROPS_END_ID + 16, } GstPropsId; #define GST_MAKE_FOURCC(a,b,c,d) ((a)|(b)<<8|(c)<<16|(d)<<24) #define GST_STR_FOURCC(f) (((f)[0])|((f)[1]<<8)|((f)[2]<<16)|((f)[3]<<24)) #define GST_PROPS_LIST(a...) GST_PROPS_LIST_ID,##a,NULL #define GST_PROPS_INT(a) GST_PROPS_INT_ID,(a) #define GST_PROPS_INT_RANGE(a,b) GST_PROPS_INT_RANGE_ID,(a),(b) #define GST_PROPS_FLOAT(a) GST_PROPS_FLOAT_ID,(a) #define GST_PROPS_FLOAT_RANGE(a,b) GST_PROPS_FLOAT_RANGE_ID,(a),(b) #define GST_PROPS_FOURCC(a) GST_PROPS_FOURCC_ID,(a) #define GST_PROPS_BOOLEAN(a) GST_PROPS_BOOL_ID,(a) #define GST_PROPS_STRING(a) GST_PROPS_STRING_ID,(a) struct _GstProps { gint refcount; GMutex *lock; GList *properties; /* real properties for this property */ }; /* initialize the subsystem */ void _gst_props_initialize (void); GstProps* gst_props_new (const gchar *firstname, ...); GstProps* gst_props_newv (const gchar *firstname, va_list var_args); void gst_props_unref (GstProps *props); void gst_props_ref (GstProps *props); void gst_props_destroy (GstProps *props); GstProps* gst_props_copy (GstProps *props); GstProps* gst_props_copy_on_write (GstProps *props); GstProps* gst_props_merge (GstProps *props, GstProps *tomerge); gboolean gst_props_check_compatibility (GstProps *fromprops, GstProps *toprops); GstProps* gst_props_set (GstProps *props, const gchar *name, ...); gint gst_props_get_int (GstProps *props, const gchar *name); gulong gst_props_get_fourcc_int (GstProps *props, const gchar *name); gboolean gst_props_get_boolean (GstProps *props, const gchar *name); const gchar* gst_props_get_string (GstProps *props, const gchar *name); xmlNodePtr gst_props_save_thyself (GstProps *props, xmlNodePtr parent); GstProps* gst_props_load_thyself (xmlNodePtr parent); #endif /* __GST_PROPS_H__ */