research.m1stereo.tv/gitweb/ - melted/blob - src/framework/mlt_property.h

   1 /*
   2  * mlt_property.h -- property class
   3  * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
   4  * Author: Charles Yates <charles.yates@pandora.be>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #ifndef _MLT_PROPERTY_H_
  22 #define _MLT_PROPERTY_H_
  23
  24 #include "mlt_types.h"
  25
  26 /** Bit pattern for properties.
  27 */
  28
  29 typedef enum
  30 {
  31         mlt_prop_none = 0,
  32         mlt_prop_int = 1,
  33         mlt_prop_string = 2,
  34         mlt_prop_position = 4,
  35         mlt_prop_double = 8,
  36         mlt_prop_data = 16,
  37         mlt_prop_int64 = 32
  38 }
  39 mlt_property_type;
  40
  41 /** Property structure.
  42 */
  43
  44 typedef struct mlt_property_s
  45 {
  46         // Stores a bit pattern of types available for this property
  47         mlt_property_type types;
  48
  49         // Atomic type handling
  50         int prop_int;
  51         mlt_position prop_position;
  52         double prop_double;
  53         int64_t prop_int64;
  54
  55         // String handling
  56         char *prop_string;
  57
  58         // Generic type handling
  59         void *data;
  60         int length;
  61         mlt_destructor destructor;
  62         mlt_serialiser serialiser;
  63 }
  64 *mlt_property;
  65
  66 /** API
  67 */
  68
  69 extern mlt_property mlt_property_init( );
  70 extern int mlt_property_set_int( mlt_property self, int value );
  71 extern int mlt_property_set_double( mlt_property self, double value );
  72 extern int mlt_property_set_position( mlt_property self, mlt_position value );
  73 extern int mlt_property_set_int64( mlt_property self, int64_t value );
  74 extern int mlt_property_set_string( mlt_property self, const char *value );
  75 extern int mlt_property_set_data( mlt_property self, void *value, int length, mlt_destructor destructor, mlt_serialiser serialiser );
  76 extern int mlt_property_get_int( mlt_property self );
  77 extern double mlt_property_get_double( mlt_property self );
  78 extern mlt_position mlt_property_get_position( mlt_property self );
  79 extern int64_t mlt_property_get_int64( mlt_property self );
  80 extern char *mlt_property_get_string( mlt_property self );
  81 extern void *mlt_property_get_data( mlt_property self, int *length );
  82 extern void mlt_property_close( mlt_property self );
  83
  84 extern void mlt_property_pass( mlt_property this, mlt_property that );
  85
  86 #endif
  87