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159 lines
3.8 KiB
159 lines
3.8 KiB
/**
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* MltTractor.cpp - Tractor wrapper
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* Copyright (C) 2004-2005 Charles Yates
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* Author: Charles Yates <charles.yates@pandora.be>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "MltTractor.h"
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#include "MltMultitrack.h"
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#include "MltField.h"
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#include "MltTransition.h"
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#include "MltFilter.h"
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#include "MltPlaylist.h"
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using namespace Mlt;
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Tractor::Tractor( ) :
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instance( mlt_tractor_new( ) )
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{
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}
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Tractor::Tractor( Service &tractor ) :
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instance( NULL )
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{
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if ( tractor.type( ) == tractor_type )
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{
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instance = ( mlt_tractor )tractor.get_service( );
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inc_ref( );
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}
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}
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Tractor::Tractor( mlt_tractor tractor ) :
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instance( tractor )
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{
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inc_ref( );
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}
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Tractor::Tractor( Tractor &tractor ) :
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instance( tractor.get_tractor( ) )
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{
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inc_ref( );
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}
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Tractor::Tractor( char *id, char *resource ) :
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instance( NULL )
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{
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Producer producer( id, resource );
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if ( producer.is_valid( ) && producer.type( ) == tractor_type )
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{
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instance = ( mlt_tractor )producer.get_producer( );
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inc_ref( );
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}
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else if ( producer.is_valid( ) )
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{
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instance = mlt_tractor_new( );
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set_track( producer, 0 );
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}
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}
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Tractor::~Tractor( )
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{
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mlt_tractor_close( instance );
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}
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mlt_tractor Tractor::get_tractor( )
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{
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return instance;
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}
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mlt_producer Tractor::get_producer( )
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{
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return mlt_tractor_producer( get_tractor( ) );
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}
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Multitrack *Tractor::multitrack( )
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{
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return new Multitrack( mlt_tractor_multitrack( get_tractor( ) ) );
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}
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Field *Tractor::field( )
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{
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return new Field( mlt_tractor_field( get_tractor( ) ) );
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}
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void Tractor::refresh( )
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{
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return mlt_tractor_refresh( get_tractor( ) );
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}
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int Tractor::set_track( Producer &producer, int index )
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{
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return mlt_tractor_set_track( get_tractor( ), producer.get_producer( ), index );
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}
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Producer *Tractor::track( int index )
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{
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mlt_producer producer = mlt_tractor_get_track( get_tractor( ), index );
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return producer != NULL ? new Producer( producer ) : NULL;
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}
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int Tractor::count( )
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{
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return mlt_multitrack_count( mlt_tractor_multitrack( get_tractor( ) ) );
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}
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void Tractor::plant_transition( Transition &transition, int a_track, int b_track )
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{
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mlt_field_plant_transition( mlt_tractor_field( get_tractor( ) ), transition.get_transition( ), a_track, b_track );
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}
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void Tractor::plant_transition( Transition *transition, int a_track, int b_track )
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{
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if ( transition != NULL )
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mlt_field_plant_transition( mlt_tractor_field( get_tractor( ) ), transition->get_transition( ), a_track, b_track );
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}
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void Tractor::plant_filter( Filter &filter, int track )
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{
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mlt_field_plant_filter( mlt_tractor_field( get_tractor( ) ), filter.get_filter( ), track );
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}
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void Tractor::plant_filter( Filter *filter, int track )
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{
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mlt_field_plant_filter( mlt_tractor_field( get_tractor( ) ), filter->get_filter( ), track );
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}
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bool Tractor::locate_cut( Producer *producer, int &track, int &cut )
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{
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bool found = false;
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for ( track = 0; producer != NULL && !found && track < count( ); track ++ )
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{
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Playlist playlist( ( mlt_playlist )mlt_tractor_get_track( get_tractor( ), track ) );
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for ( cut = 0; !found && cut < playlist.count( ); cut ++ )
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{
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Producer *clip = playlist.get_clip( cut );
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found = producer->get_producer( ) == clip->get_producer( );
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delete clip;
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}
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}
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track --;
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cut --;
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return found;
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}
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