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