2 * MltTractor.cpp - Tractor wrapper
3 * Copyright (C) 2004-2005 Charles Yates
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 #include "MltTractor.h"
22 #include "MltMultitrack.h"
24 #include "MltTransition.h"
25 #include "MltFilter.h"
26 #include "MltPlaylist.h"
30 instance( mlt_tractor_new( ) )
34 Tractor::Tractor( Service &tractor ) :
37 if ( tractor.type( ) == tractor_type )
39 instance = ( mlt_tractor )tractor.get_service( );
44 Tractor::Tractor( mlt_tractor tractor ) :
50 Tractor::Tractor( Tractor &tractor ) :
51 Mlt::Producer( tractor ),
52 instance( tractor.get_tractor( ) )
57 Tractor::Tractor( Profile& profile, char *id, char *resource ) :
60 Producer producer( profile, id, resource );
61 if ( producer.is_valid( ) && producer.type( ) == tractor_type )
63 instance = ( mlt_tractor )producer.get_producer( );
66 else if ( producer.is_valid( ) )
68 instance = mlt_tractor_new( );
69 set_track( producer, 0 );
75 mlt_tractor_close( instance );
78 mlt_tractor Tractor::get_tractor( )
83 mlt_producer Tractor::get_producer( )
85 return mlt_tractor_producer( get_tractor( ) );
88 Multitrack *Tractor::multitrack( )
90 return new Multitrack( mlt_tractor_multitrack( get_tractor( ) ) );
93 Field *Tractor::field( )
95 return new Field( mlt_tractor_field( get_tractor( ) ) );
98 void Tractor::refresh( )
100 return mlt_tractor_refresh( get_tractor( ) );
103 int Tractor::set_track( Producer &producer, int index )
105 return mlt_tractor_set_track( get_tractor( ), producer.get_producer( ), index );
108 Producer *Tractor::track( int index )
110 mlt_producer producer = mlt_tractor_get_track( get_tractor( ), index );
111 return producer != NULL ? new Producer( producer ) : NULL;
114 int Tractor::count( )
116 return mlt_multitrack_count( mlt_tractor_multitrack( get_tractor( ) ) );
119 void Tractor::plant_transition( Transition &transition, int a_track, int b_track )
121 mlt_field_plant_transition( mlt_tractor_field( get_tractor( ) ), transition.get_transition( ), a_track, b_track );
124 void Tractor::plant_transition( Transition *transition, int a_track, int b_track )
126 if ( transition != NULL )
127 mlt_field_plant_transition( mlt_tractor_field( get_tractor( ) ), transition->get_transition( ), a_track, b_track );
130 void Tractor::plant_filter( Filter &filter, int track )
132 mlt_field_plant_filter( mlt_tractor_field( get_tractor( ) ), filter.get_filter( ), track );
135 void Tractor::plant_filter( Filter *filter, int track )
137 mlt_field_plant_filter( mlt_tractor_field( get_tractor( ) ), filter->get_filter( ), track );
140 bool Tractor::locate_cut( Producer *producer, int &track, int &cut )
144 for ( track = 0; producer != NULL && !found && track < count( ); track ++ )
146 Playlist playlist( ( mlt_playlist )mlt_tractor_get_track( get_tractor( ), track ) );
147 for ( cut = 0; !found && cut < playlist.count( ); cut ++ )
149 Producer *clip = playlist.get_clip( cut );
150 found = producer->get_producer( ) == clip->get_producer( );
161 int Tractor::connect( Producer &producer )
163 return mlt_tractor_connect( get_tractor( ), producer.get_service( ) );