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81 lines
2.7 KiB
81 lines
2.7 KiB
/*
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* mlt_consumer.h -- abstraction for all consumer services
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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_CONSUMER_H_
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#define _MLT_CONSUMER_H_
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#include "mlt_service.h"
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#include <pthread.h>
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/** The interface definition for all consumers.
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*/
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struct mlt_consumer_s
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{
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/* We're implementing service here */
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struct mlt_service_s parent;
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/* public virtual */
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int ( *start )( mlt_consumer );
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int ( *stop )( mlt_consumer );
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int ( *is_stopped )( mlt_consumer );
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void ( *close )( mlt_consumer );
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/* Private data */
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void *local;
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void *child;
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int real_time;
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int ahead;
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mlt_image_format format;
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mlt_deque queue;
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pthread_t ahead_thread;
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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pthread_mutex_t put_mutex;
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pthread_cond_t put_cond;
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mlt_frame put;
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int put_active;
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};
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/** Public final methods
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*/
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#define MLT_CONSUMER_SERVICE( consumer ) ( &( consumer )->parent )
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#define MLT_CONSUMER_PROPERTIES( consumer ) MLT_SERVICE_PROPERTIES( MLT_CONSUMER_SERVICE( consumer ) )
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extern int mlt_consumer_init( mlt_consumer self, void *child );
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extern mlt_consumer mlt_consumer_new( );
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extern mlt_service mlt_consumer_service( mlt_consumer self );
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extern mlt_properties mlt_consumer_properties( mlt_consumer self );
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extern int mlt_consumer_connect( mlt_consumer self, mlt_service producer );
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extern int mlt_consumer_start( mlt_consumer self );
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extern void mlt_consumer_purge( mlt_consumer self );
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extern int mlt_consumer_put_frame( mlt_consumer self, mlt_frame frame );
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extern mlt_frame mlt_consumer_get_frame( mlt_consumer self );
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extern mlt_frame mlt_consumer_rt_frame( mlt_consumer self );
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extern int mlt_consumer_stop( mlt_consumer self );
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extern int mlt_consumer_is_stopped( mlt_consumer self );
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extern void mlt_consumer_stopped( mlt_consumer self );
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extern void mlt_consumer_close( mlt_consumer );
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extern int mlt_consumer_profile( mlt_properties properties, char *profile );
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#endif
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