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

   1 /**
   2  * MltFilter.cpp - MLT 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 "MltFilter.h"
  22 using namespace Mlt;
  23
  24 Filter::Filter( char *id, char *service ) :
  25         destroy( true ),
  26         instance( NULL )
  27 {
  28         instance = mlt_factory_filter( id, service );
  29 }
  30
  31 Filter::Filter( Filter &filter ) :
  32         destroy( false ),
  33         instance( filter.get_filter( ) )
  34 {
  35 }
  36
  37 Filter::Filter( mlt_filter filter ) :
  38         destroy( false ),
  39         instance( filter )
  40 {
  41 }
  42
  43 Filter::~Filter( )
  44 {
  45         if ( destroy )
  46                 mlt_filter_close( instance );
  47 }
  48
  49 mlt_filter Filter::get_filter( )
  50 {
  51         return instance;
  52 }
  53
  54 mlt_service Filter::get_service( )
  55 {
  56         return mlt_filter_service( get_filter( ) );
  57 }
  58
  59 int Filter::connect( Service &service, int index )
  60 {
  61         return mlt_filter_connect( get_filter( ), service.get_service( ), index );
  62 }
  63
  64 void Filter::set_in_and_out( mlt_position in, mlt_position out )
  65 {
  66         mlt_filter_set_in_and_out( get_filter( ), in, out );
  67 }
  68
  69 mlt_position Filter::get_in( )
  70 {
  71         return mlt_filter_get_in( get_filter( ) );
  72 }
  73
  74 mlt_position Filter::get_out( )
  75 {
  76         return mlt_filter_get_out( get_filter( ) );
  77 }
  78
  79 int Filter::get_track( )
  80 {
  81         return mlt_filter_get_track( get_filter( ) );
  82 }
  83
  84