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70 lines
2.5 KiB
70 lines
2.5 KiB
/*
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* mlt_service.h -- interface for all service classes
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* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
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* Author: Charles Yates <charles.yates@pandora.be>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _MLT_SERVICE_H_
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#define _MLT_SERVICE_H_
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#include "mlt_properties.h"
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/** The interface definition for all services.
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*/
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struct mlt_service_s
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{
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/* We're extending properties here */
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struct mlt_properties_s parent;
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/* Protected virtual */
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int ( *get_frame )( mlt_service self, mlt_frame_ptr frame, int index );
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mlt_destructor close;
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void *close_object;
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/* Private data */
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void *local;
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void *child;
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};
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/** The public API.
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*/
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#define MLT_SERVICE_PROPERTIES( service ) ( &( service )->parent )
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extern int mlt_service_init( mlt_service self, void *child );
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extern void mlt_service_lock( mlt_service self );
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extern void mlt_service_unlock( mlt_service self );
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extern mlt_service_type mlt_service_identify( mlt_service self );
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extern int mlt_service_connect_producer( mlt_service self, mlt_service producer, int index );
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extern int mlt_service_get_frame( mlt_service self, mlt_frame_ptr frame, int index );
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extern mlt_properties mlt_service_properties( mlt_service self );
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extern mlt_service mlt_service_consumer( mlt_service self );
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extern mlt_service mlt_service_producer( mlt_service self );
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extern int mlt_service_attach( mlt_service self, mlt_filter filter );
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extern int mlt_service_detach( mlt_service self, mlt_filter filter );
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extern void mlt_service_apply_filters( mlt_service self, mlt_frame frame, int index );
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extern mlt_filter mlt_service_filter( mlt_service self, int index );
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extern void mlt_service_close( mlt_service self );
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/* I'm not sure about self one - leaving it out of docs for now (only used in consumer_westley) */
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extern mlt_service mlt_service_get_producer( mlt_service self );
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#endif
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