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 using namespace Mlt;
  25
  26 Tractor::Tractor( ) :
  27         instance( mlt_tractor_new( ) )
  28 {
  29 }
  30
  31 Tractor::Tractor( Service &tractor ) :
  32         instance( NULL )
  33 {
  34         if ( tractor.type( ) == tractor_type )
  35         {
  36                 instance = ( mlt_tractor )tractor.get_service( );
  37                 inc_ref( );
  38         }
  39 }
  40
  41 Tractor::Tractor( mlt_tractor tractor ) :
  42         instance( tractor )
  43 {
  44         inc_ref( );
  45 }
  46
  47 Tractor::Tractor( Tractor &tractor ) :
  48         instance( tractor.get_tractor( ) )
  49 {
  50         inc_ref( );
  51 }
  52
  53 Tractor::~Tractor( )
  54 {
  55         mlt_tractor_close( instance );
  56 }
  57
  58 mlt_tractor Tractor::get_tractor( )
  59 {
  60         return instance;
  61 }
  62
  63 mlt_producer Tractor::get_producer( )
  64 {
  65         return mlt_tractor_producer( get_tractor( ) );
  66 }
  67
  68 Multitrack *Tractor::multitrack( )
  69 {
  70         return new Multitrack( mlt_tractor_multitrack( get_tractor( ) ) );
  71 }
  72
  73 Field *Tractor::field( )
  74 {
  75         return new Field( mlt_tractor_field( get_tractor( ) ) );
  76 }
  77
  78 void Tractor::refresh( )
  79 {
  80         return mlt_tractor_refresh( get_tractor( ) );
  81 }
  82
  83 int Tractor::set_track( Producer &producer, int index )
  84 {
  85         return mlt_tractor_set_track( get_tractor( ), producer.get_producer( ), index );
  86 }
  87
  88 Producer *Tractor::track( int index )
  89 {
  90         mlt_producer producer = mlt_tractor_get_track( get_tractor( ), index );
  91         return producer != NULL ? new Producer( producer ) : NULL;
  92 }
  93
  94 int Tractor::count( )
  95 {
  96         return mlt_multitrack_count( mlt_tractor_multitrack( get_tractor( ) ) );
  97 }