research.m1stereo.tv/gitweb/ - melted/blob - mlt++/src/MltTractor.cpp

   1 /**
   2  * MltTractor.cpp - Tractor wrapper
   3  * Copyright (C) 2004-2005 Charles Yates
   4  * Author: Charles Yates <charles.yates@pandora.be>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU Lesser General Public License as published
   8  * by the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program 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
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include "MltTractor.h"
  22 #include "MltMultitrack.h"
  23 #include "MltField.h"
  24 #include "MltTransition.h"
  25 #include "MltFilter.h"
  26 using namespace Mlt;
  27
  28 Tractor::Tractor( ) :
  29         instance( mlt_tractor_new( ) )
  30 {
  31 }
  32
  33 Tractor::Tractor( Service &tractor ) :
  34         instance( NULL )
  35 {
  36         if ( tractor.type( ) == tractor_type )
  37         {
  38                 instance = ( mlt_tractor )tractor.get_service( );
  39                 inc_ref( );
  40         }
  41 }
  42
  43 Tractor::Tractor( mlt_tractor tractor ) :
  44         instance( tractor )
  45 {
  46         inc_ref( );
  47 }
  48
  49 Tractor::Tractor( Tractor &tractor ) :
  50         instance( tractor.get_tractor( ) )
  51 {
  52         inc_ref( );
  53 }
  54
  55 Tractor::~Tractor( )
  56 {
  57         mlt_tractor_close( instance );
  58 }
  59
  60 mlt_tractor Tractor::get_tractor( )
  61 {
  62         return instance;
  63 }
  64
  65 mlt_producer Tractor::get_producer( )
  66 {
  67         return mlt_tractor_producer( get_tractor( ) );
  68 }
  69
  70 Multitrack *Tractor::multitrack( )
  71 {
  72         return new Multitrack( mlt_tractor_multitrack( get_tractor( ) ) );
  73 }
  74
  75 Field *Tractor::field( )
  76 {
  77         return new Field( mlt_tractor_field( get_tractor( ) ) );
  78 }
  79
  80 void Tractor::refresh( )
  81 {
  82         return mlt_tractor_refresh( get_tractor( ) );
  83 }
  84
  85 int Tractor::set_track( Producer &producer, int index )
  86 {
  87         return mlt_tractor_set_track( get_tractor( ), producer.get_producer( ), index );
  88 }
  89
  90 Producer *Tractor::track( int index )
  91 {
  92         mlt_producer producer = mlt_tractor_get_track( get_tractor( ), index );
  93         return producer != NULL ? new Producer( producer ) : NULL;
  94 }
  95
  96 int Tractor::count( )
  97 {
  98         return mlt_multitrack_count( mlt_tractor_multitrack( get_tractor( ) ) );
  99 }
 100
 101 void Tractor::plant_transition( Transition &transition, int a_track, int b_track )
 102 {
 103         mlt_field_plant_transition( mlt_tractor_field( get_tractor( ) ), transition.get_transition( ), a_track, b_track );
 104 }
 105
 106 void Tractor::plant_transition( Transition *transition, int a_track, int b_track )
 107 {
 108         if ( transition != NULL )
 109                 mlt_field_plant_transition( mlt_tractor_field( get_tractor( ) ), transition->get_transition( ), a_track, b_track );
 110 }
 111
 112 void Tractor::plant_filter( Filter &filter, int track )
 113 {
 114         mlt_field_plant_filter( mlt_tractor_field( get_tractor( ) ), filter.get_filter( ), track );
 115 }
 116
 117 void Tractor::plant_filter( Filter *filter, int track )
 118 {
 119         mlt_field_plant_filter( mlt_tractor_field( get_tractor( ) ), filter->get_filter( ), track );
 120 }
 121