+++ /dev/null
-/**
- * \file mlt_service.h
- * \brief interface declaration for all service classes
- * \see mlt_service_s
- *
- * Copyright (C) 2003-2009 Ushodaya Enterprises Limited
- * \author Charles Yates <charles.yates@pandora.be>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _MLT_SERVICE_H_
-#define _MLT_SERVICE_H_
-
-#include "mlt_properties.h"
-#include "mlt_types.h"
-
-/** \brief Service abstract base class
- *
- * \extends mlt_properties
- * The service is the base class for all of the interesting classes and
- * plugins for MLT. A service can have multiple inputs connections to
- * other services called its "producers" but only a single output to another
- * service called its "consumer." A service that has both producer and
- * consumer connections is called a filter. Any service can have zero or more
- * filters "attached" to it. We call any collection of services and their
- * connections a "service network," which is similar to what DirectShow calls
- * a filter graph or what gstreamer calls an element pipeline.
- *
- * \event \em service-changed
- * \event \em property-changed
- * \properties \em mlt_type identifies the subclass
- * \properties \em _mlt_service_hidden a flag that indicates whether to hide the mlt_service
- * \properties \em mlt_service is the name of the implementation of the service
- * \properties \em resource is either the stream identifier or grandchild-class
- * \properties \em in when to start, what is started is service-specific
- * \properties \em out when to stop
- * \properties \em _filter_private Set this on a service to ensure that attached filters are handled privately.
- * See modules/core/filter_region.c and modules/core/filter_watermark.c for examples.
- * \properties \em disable Set this on a filter to disable it while keeping it in the object model.
- * \properties \em _profile stores the mlt_profile for a service
- * \properties \em _unique_id is a unique identifier
- */
-
-struct mlt_service_s
-{
- struct mlt_properties_s parent; /**< \private */
-
- /** Get a frame of data (virtual function).
- *
- * \param mlt_producer a producer
- * \param mlt_frame_ptr a frame pointer by reference
- * \param int an index
- * \return true if there was an error
- */
- int ( *get_frame )( mlt_service self, mlt_frame_ptr frame, int index );
-
- /** the destructor virtual function */
- mlt_destructor close;
- void *close_object; /**< the object supplied to the close virtual function */
-
- void *local; /**< \private instance object */
- void *child; /**< \private the object of a subclass */
-};
-
-#define MLT_SERVICE_PROPERTIES( service ) ( &( service )->parent )
-
-extern int mlt_service_init( mlt_service self, void *child );
-extern void mlt_service_lock( mlt_service self );
-extern void mlt_service_unlock( mlt_service self );
-extern mlt_service_type mlt_service_identify( mlt_service self );
-extern int mlt_service_connect_producer( mlt_service self, mlt_service producer, int index );
-extern mlt_service mlt_service_get_producer( mlt_service self );
-extern int mlt_service_get_frame( mlt_service self, mlt_frame_ptr frame, int index );
-extern mlt_properties mlt_service_properties( mlt_service self );
-extern mlt_service mlt_service_consumer( mlt_service self );
-extern mlt_service mlt_service_producer( mlt_service self );
-extern int mlt_service_attach( mlt_service self, mlt_filter filter );
-extern int mlt_service_detach( mlt_service self, mlt_filter filter );
-extern void mlt_service_apply_filters( mlt_service self, mlt_frame frame, int index );
-extern mlt_filter mlt_service_filter( mlt_service self, int index );
-extern mlt_profile mlt_service_profile( mlt_service self );
-extern void mlt_service_close( mlt_service self );
-extern void mlt_service_cache_put( mlt_service self, const char *name, void* data, int size, mlt_destructor destructor );
-extern mlt_cache_item mlt_service_cache_get( mlt_service self, const char *name );
-
-#endif
-
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