b1bad7e981a71d3be4824f126a44a57a0c4a757f
2 * mlt_service.h -- interface for all service classes
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library 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 GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #ifndef _MLT_SERVICE_H_
22 #define _MLT_SERVICE_H_
24 #include "mlt_properties.h"
26 /** The interface definition for all services.
31 /* We're extending properties here */
32 struct mlt_properties_s parent
;
34 /* Protected virtual */
35 int ( *get_frame
)( mlt_service self
, mlt_frame_ptr frame
, int index
);
47 #define MLT_SERVICE_PROPERTIES( service ) ( &( service )->parent )
49 extern int mlt_service_init( mlt_service self
, void *child
);
50 extern void mlt_service_lock( mlt_service self
);
51 extern void mlt_service_unlock( mlt_service self
);
52 extern mlt_service_type
mlt_service_identify( mlt_service self
);
53 extern int mlt_service_connect_producer( mlt_service self
, mlt_service producer
, int index
);
54 extern int mlt_service_get_frame( mlt_service self
, mlt_frame_ptr frame
, int index
);
55 extern mlt_properties
mlt_service_properties( mlt_service self
);
56 extern mlt_service
mlt_service_consumer( mlt_service self
);
57 extern mlt_service
mlt_service_producer( mlt_service self
);
58 extern int mlt_service_attach( mlt_service self
, mlt_filter filter
);
59 extern int mlt_service_detach( mlt_service self
, mlt_filter filter
);
60 extern void mlt_service_apply_filters( mlt_service self
, mlt_frame frame
, int index
);
61 extern mlt_filter
mlt_service_filter( mlt_service self
, int index
);
63 extern void mlt_service_close( mlt_service self
);
65 /* I'm not sure about self one - leaving it out of docs for now (only used in consumer_westley) */
66 extern mlt_service
mlt_service_get_producer( mlt_service self
);