2 * mlt_property.c -- property class
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
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.
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.
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.
23 #include "mlt_property.h"
29 /** Construct and uninitialised property.
32 mlt_property
mlt_property_init( )
34 mlt_property
this = malloc( sizeof( struct mlt_property_s
) );
39 this->prop_position
= 0;
40 this->prop_double
= 0;
42 this->prop_string
= NULL
;
45 this->destructor
= NULL
;
46 this->serialiser
= NULL
;
54 static inline void mlt_property_clear( mlt_property
this )
56 // Special case data handling
57 if ( this->types
& mlt_prop_data
&& this->destructor
!= NULL
)
58 this->destructor( this->data
);
60 // Special case string handling
61 if ( this->types
& mlt_prop_string
)
62 free( this->prop_string
);
67 this->prop_position
= 0;
68 this->prop_double
= 0;
70 this->prop_string
= NULL
;
73 this->destructor
= NULL
;
74 this->serialiser
= NULL
;
77 /** Set an int on this property.
80 int mlt_property_set_int( mlt_property
this, int value
)
82 mlt_property_clear( this );
83 this->types
= mlt_prop_int
;
84 this->prop_int
= value
;
88 /** Set a double on this property.
91 int mlt_property_set_double( mlt_property
this, double value
)
93 mlt_property_clear( this );
94 this->types
= mlt_prop_double
;
95 this->prop_double
= value
;
99 /** Set a position on this property.
102 int mlt_property_set_position( mlt_property
this, mlt_position value
)
104 mlt_property_clear( this );
105 this->types
= mlt_prop_position
;
106 this->prop_position
= value
;
110 /** Set a string on this property.
113 int mlt_property_set_string( mlt_property
this, const char *value
)
115 if ( value
!= this->prop_string
)
117 mlt_property_clear( this );
118 this->types
= mlt_prop_string
;
120 this->prop_string
= strdup( value
);
124 this->types
= mlt_prop_string
;
126 return this->prop_string
== NULL
;
129 /** Set an int64 on this property.
132 int mlt_property_set_int64( mlt_property
this, int64_t value
)
134 mlt_property_clear( this );
135 this->types
= mlt_prop_int64
;
136 this->prop_int64
= value
;
140 /** Set a data on this property.
143 int mlt_property_set_data( mlt_property
this, void *value
, int length
, mlt_destructor destructor
, mlt_serialiser serialiser
)
145 if ( this->data
== value
)
146 this->destructor
= NULL
;
147 mlt_property_clear( this );
148 this->types
= mlt_prop_data
;
150 this->length
= length
;
151 this->destructor
= destructor
;
152 this->serialiser
= serialiser
;
156 static inline int mlt_property_atoi( const char *value
)
160 else if ( value
[0] == '0' && value
[1] == 'x' )
161 return strtol( value
+ 2, NULL
, 16 );
163 return strtol( value
, NULL
, 10 );
166 /** Get an int from this property.
169 int mlt_property_get_int( mlt_property
this )
171 if ( this->types
& mlt_prop_int
)
172 return this->prop_int
;
173 else if ( this->types
& mlt_prop_double
)
174 return ( int )this->prop_double
;
175 else if ( this->types
& mlt_prop_position
)
176 return ( int )this->prop_position
;
177 else if ( this->types
& mlt_prop_int64
)
178 return ( int )this->prop_int64
;
179 else if ( this->types
& mlt_prop_string
)
180 return mlt_property_atoi( this->prop_string
);
184 /** Get a double from this property.
187 double mlt_property_get_double( mlt_property
this )
189 if ( this->types
& mlt_prop_double
)
190 return this->prop_double
;
191 else if ( this->types
& mlt_prop_int
)
192 return ( double )this->prop_int
;
193 else if ( this->types
& mlt_prop_position
)
194 return ( double )this->prop_position
;
195 else if ( this->types
& mlt_prop_int64
)
196 return ( double )this->prop_int64
;
197 else if ( this->types
& mlt_prop_string
)
198 return atof( this->prop_string
);
202 /** Get a position from this property.
205 mlt_position
mlt_property_get_position( mlt_property
this )
207 if ( this->types
& mlt_prop_position
)
208 return this->prop_position
;
209 else if ( this->types
& mlt_prop_int
)
210 return ( mlt_position
)this->prop_int
;
211 else if ( this->types
& mlt_prop_double
)
212 return ( mlt_position
)this->prop_double
;
213 else if ( this->types
& mlt_prop_int64
)
214 return ( mlt_position
)this->prop_int64
;
215 else if ( this->types
& mlt_prop_string
)
216 return ( mlt_position
)atol( this->prop_string
);
220 static inline int64_t mlt_property_atoll( const char *value
)
224 else if ( value
[0] == '0' && value
[1] == 'x' )
225 return strtoll( value
+ 2, NULL
, 16 );
227 return strtoll( value
, NULL
, 10 );
230 /** Get an int64 from this property.
233 int64_t mlt_property_get_int64( mlt_property
this )
235 if ( this->types
& mlt_prop_int64
)
236 return this->prop_int64
;
237 else if ( this->types
& mlt_prop_int
)
238 return ( int64_t )this->prop_int
;
239 else if ( this->types
& mlt_prop_double
)
240 return ( int64_t )this->prop_double
;
241 else if ( this->types
& mlt_prop_position
)
242 return ( int64_t )this->prop_position
;
243 else if ( this->types
& mlt_prop_string
)
244 return mlt_property_atoll( this->prop_string
);
248 /** Get a string from this property.
251 char *mlt_property_get_string( mlt_property
this )
253 // Construct a string if need be
254 if ( ! ( this->types
& mlt_prop_string
) )
256 if ( this->types
& mlt_prop_int
)
258 this->types
|= mlt_prop_string
;
259 this->prop_string
= malloc( 32 );
260 sprintf( this->prop_string
, "%d", this->prop_int
);
262 else if ( this->types
& mlt_prop_double
)
264 this->types
|= mlt_prop_string
;
265 this->prop_string
= malloc( 32 );
266 sprintf( this->prop_string
, "%f", this->prop_double
);
268 else if ( this->types
& mlt_prop_position
)
270 this->types
|= mlt_prop_string
;
271 this->prop_string
= malloc( 32 );
272 sprintf( this->prop_string
, "%d", this->prop_position
);
274 else if ( this->types
& mlt_prop_int64
)
276 this->types
|= mlt_prop_string
;
277 this->prop_string
= malloc( 32 );
278 sprintf( this->prop_string
, "%lld", this->prop_int64
);
280 else if ( this->types
& mlt_prop_data
&& this->serialiser
!= NULL
)
282 this->types
|= mlt_prop_string
;
283 this->prop_string
= this->serialiser( this->data
, this->length
);
287 // Return the string (may be NULL)
288 return this->prop_string
;
291 /** Get a data and associated length.
294 void *mlt_property_get_data( mlt_property
this, int *length
)
296 // Assign length if not NULL
297 if ( length
!= NULL
)
298 *length
= this->length
;
300 // Return the data (note: there is no conversion here)
304 /** Close this property.
307 void mlt_property_close( mlt_property
this )
309 mlt_property_clear( this );