+++ /dev/null
-/**
- * \file mlt_producer.h
- * \brief abstraction for all producer services
- * \see mlt_producer_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_PRODUCER_H_
-#define _MLT_PRODUCER_H_
-
-#include "mlt_service.h"
-#include "mlt_filter.h"
-
-/** \brief Producer abstract service class
- *
- * A producer is a service that generates audio, video, and metadata.
- * Some day it may also generate text (subtitles). This is not to say
- * a producer "synthesizes," rather that is an origin of data within the
- * service network - that could be through synthesis or reading a stream.
- *
- * \extends mlt_service
- * \event \em producer-changed
- * \properties \em mlt_type the name of the service subclass, e.g. mlt_producer
- * \properties \em mlt_service the name of a producer subclass
- * \properties \em _position the current position of the play head, relative to the in point
- * \properties \em _frame the current position of the play head, relative to the beginning of the resource
- * \properties \em _speed the current speed factor, where 1.0 is normal
- * \properties \em aspect_ratio sample aspect ratio
- * \properties \em length the duration of the cut in frames
- * \properties \em eof the end-of-file behavior, one of: pause, continue, loop
- * \properties \em resource the file name, stream address, or the class name in angle brackets
- * \properties \em _cut set if this producer is a "cut" producer
- * \properties \em mlt_mix stores the data for a "mix" producer
- * \properties \em _cut_parent holds a reference to the cut's parent producer
- * \properties \em ignore_points Set this to temporarily disable the in and out points.
- * \properties \em use_clone holds a reference to a clone's producer, as created by mlt_producer_optimise
- * \properties \em _clone is the index of the clone in the list of clones stored on the clone's producer
- * \properties \em _clones is the number of clones of the producer, as created by mlt_producer_optimise
- * \properties \em _clone.{N} holds a reference to the N'th clone of the producer, as created by mlt_producer_optimise
- * \properties \em meta.* holds metadata - there is a loose taxonomy to be defined
- * \properties \em set.* holds properties to set on a frame produced
- * \todo define the media metadata taxonomy
- */
-
-struct mlt_producer_s
-{
- /** A producer is a service. */
- struct mlt_service_s parent;
-
- /** 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_producer, mlt_frame_ptr, int );
-
- /** 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 */
-};
-
-/*
- * Public final methods
- */
-
-#define MLT_PRODUCER_SERVICE( producer ) ( &( producer )->parent )
-#define MLT_PRODUCER_PROPERTIES( producer ) MLT_SERVICE_PROPERTIES( MLT_PRODUCER_SERVICE( producer ) )
-
-extern int mlt_producer_init( mlt_producer self, void *child );
-extern mlt_producer mlt_producer_new( );
-extern mlt_service mlt_producer_service( mlt_producer self );
-extern mlt_properties mlt_producer_properties( mlt_producer self );
-extern int mlt_producer_seek( mlt_producer self, mlt_position position );
-extern mlt_position mlt_producer_position( mlt_producer self );
-extern mlt_position mlt_producer_frame( mlt_producer self );
-extern int mlt_producer_set_speed( mlt_producer self, double speed );
-extern double mlt_producer_get_speed( mlt_producer self );
-extern double mlt_producer_get_fps( mlt_producer self );
-extern int mlt_producer_set_in_and_out( mlt_producer self, mlt_position in, mlt_position out );
-extern int mlt_producer_clear( mlt_producer self );
-extern mlt_position mlt_producer_get_in( mlt_producer self );
-extern mlt_position mlt_producer_get_out( mlt_producer self );
-extern mlt_position mlt_producer_get_playtime( mlt_producer self );
-extern mlt_position mlt_producer_get_length( mlt_producer self );
-extern void mlt_producer_prepare_next( mlt_producer self );
-extern int mlt_producer_attach( mlt_producer self, mlt_filter filter );
-extern int mlt_producer_detach( mlt_producer self, mlt_filter filter );
-extern mlt_filter mlt_producer_filter( mlt_producer self, int index );
-extern mlt_producer mlt_producer_cut( mlt_producer self, int in, int out );
-extern int mlt_producer_is_cut( mlt_producer self );
-extern int mlt_producer_is_mix( mlt_producer self );
-extern int mlt_producer_is_blank( mlt_producer self );
-extern mlt_producer mlt_producer_cut_parent( mlt_producer self );
-extern int mlt_producer_optimise( mlt_producer self );
-extern void mlt_producer_close( mlt_producer self );
-
-#endif
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