2 * mlt_producer.h -- abstraction for all producer services
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.
21 #ifndef _MLT_PRODUCER_H_
22 #define _MLT_PRODUCER_H_
24 #include "mlt_service.h"
26 /** The interface definition for all producers.
31 // We're implementing service here
32 struct mlt_service_s parent
;
34 // Public virtual methods
35 int ( *get_frame
)( mlt_producer
, mlt_frame_ptr
, int );
36 void ( *close
)( mlt_producer
);
43 /** Public final methods
46 extern int mlt_producer_init( mlt_producer
this, void *child
);
47 extern mlt_service
mlt_producer_service( mlt_producer
this );
48 extern mlt_properties
mlt_producer_properties( mlt_producer
this );
49 extern int mlt_producer_seek( mlt_producer
this, mlt_position position
);
50 extern mlt_position
mlt_producer_position( mlt_producer
this );
51 extern mlt_position
mlt_producer_frame( mlt_producer
this );
52 extern int mlt_producer_set_speed( mlt_producer
this, double speed
);
53 extern double mlt_producer_get_speed( mlt_producer
this );
54 extern double mlt_producer_get_fps( mlt_producer
this );
55 extern int mlt_producer_set_in_and_out( mlt_producer
this, mlt_position in
, mlt_position out
);
56 extern mlt_position
mlt_producer_get_in( mlt_producer
this );
57 extern mlt_position
mlt_producer_get_out( mlt_producer
this );
58 extern mlt_position
mlt_producer_get_playtime( mlt_producer
this );
59 extern mlt_position
mlt_producer_get_length( mlt_producer
this );
60 extern void mlt_producer_prepare_next( mlt_producer
this );
61 extern void mlt_producer_close( mlt_producer
this );