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 #include "MltProfile.h"
  25 using namespace Mlt;
  26
  27 Service::Service( ) :
  28         Properties( false ),
  29         instance( NULL )
  30 {
  31 }
  32
  33 Service::Service( Service &service ) :
  34         Properties( false ),
  35         instance( service.get_service( ) )
  36 {
  37         inc_ref( );
  38 }
  39
  40 Service::Service( mlt_service service ) :
  41         Properties( false ),
  42         instance( service )
  43 {
  44         inc_ref( );
  45 }
  46
  47 Service::~Service( )
  48 {
  49         mlt_service_close( instance );
  50 }
  51
  52 mlt_service Service::get_service( )
  53 {
  54         return instance;
  55 }
  56
  57 mlt_properties Service::get_properties( )
  58 {
  59         return mlt_service_properties( get_service( ) );
  60 }
  61
  62 void Service::lock( )
  63 {
  64         mlt_service_lock( get_service( ) );
  65 }
  66
  67 void Service::unlock( )
  68 {
  69         mlt_service_unlock( get_service( ) );
  70 }
  71
  72 int Service::connect_producer( Service &producer, int index )
  73 {
  74         return mlt_service_connect_producer( get_service( ), producer.get_service( ), index );
  75 }
  76
  77 Service *Service::producer( )
  78 {
  79         return new Service( mlt_service_producer( get_service( ) ) );
  80 }
  81
  82 Service *Service::consumer( )
  83 {
  84         return new Service( mlt_service_consumer( get_service( ) ) );
  85 }
  86
  87 Profile *Service::profile( )
  88 {
  89         return new Profile( mlt_service_profile( get_service() ) );
  90 }
  91
  92 Frame *Service::get_frame( int index )
  93 {
  94         mlt_frame frame = NULL;
  95         mlt_service_get_frame( get_service( ), &frame, index );
  96         Frame *result = new Frame( frame );
  97         mlt_frame_close( frame );
  98         return result;
  99 }
 100
 101 mlt_service_type Service::type( )
 102 {
 103         return mlt_service_identify( get_service( ) );
 104 }
 105
 106 int Service::attach( Filter &filter )
 107 {
 108         return mlt_service_attach( get_service( ), filter.get_filter( ) );
 109 }
 110
 111 int Service::detach( Filter &filter )
 112 {
 113         return mlt_service_detach( get_service( ), filter.get_filter( ) );
 114 }
 115
 116 Filter *Service::filter( int index )
 117 {
 118         mlt_filter result = mlt_service_filter( get_service( ), index );
 119         return result == NULL ? NULL : new Filter( result );
 120 }
 121