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

   1 /**
   2  * MltService.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 <string.h>
  22 #include "MltService.h"
  23 #include "MltFilter.h"
  24 using namespace Mlt;
  25
  26 Service::Service( ) :
  27         Properties( false ),
  28         instance( NULL )
  29 {
  30 }
  31
  32 Service::Service( Service &service ) :
  33         Properties( false ),
  34         instance( service.get_service( ) )
  35 {
  36         inc_ref( );
  37 }
  38
  39 Service::Service( mlt_service service ) :
  40         Properties( false ),
  41         instance( service )
  42 {
  43         inc_ref( );
  44 }
  45
  46 Service::~Service( )
  47 {
  48         mlt_service_close( instance );
  49 }
  50
  51 mlt_service Service::get_service( )
  52 {
  53         return instance;
  54 }
  55
  56 mlt_properties Service::get_properties( )
  57 {
  58         return mlt_service_properties( get_service( ) );
  59 }
  60
  61 void Service::lock( )
  62 {
  63         mlt_service_lock( get_service( ) );
  64 }
  65
  66 void Service::unlock( )
  67 {
  68         mlt_service_unlock( get_service( ) );
  69 }
  70
  71 int Service::connect_producer( Service &producer, int index )
  72 {
  73         return mlt_service_connect_producer( get_service( ), producer.get_service( ), index );
  74 }
  75
  76 Service *Service::producer( )
  77 {
  78         return new Service( mlt_service_producer( get_service( ) ) );
  79 }
  80
  81 Service *Service::consumer( )
  82 {
  83         return new Service( mlt_service_consumer( get_service( ) ) );
  84 }
  85
  86 Frame *Service::get_frame( int index )
  87 {
  88         mlt_frame frame = NULL;
  89         mlt_service_get_frame( get_service( ), &frame, index );
  90         Frame *result = new Frame( frame );
  91         mlt_frame_close( frame );
  92         return result;
  93 }
  94
  95 mlt_service_type Service::type( )
  96 {
  97         return mlt_service_identify( get_service( ) );
  98 }
  99
 100 int Service::attach( Filter &filter )
 101 {
 102         return mlt_service_attach( get_service( ), filter.get_filter( ) );
 103 }
 104
 105 int Service::detach( Filter &filter )
 106 {
 107         return mlt_service_detach( get_service( ), filter.get_filter( ) );
 108 }
 109
 110 Filter *Service::filter( int index )
 111 {
 112         mlt_filter result = mlt_service_filter( get_service( ), index );
 113         return result == NULL ? NULL : new Filter( result );
 114 }
 115