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

   1 /**
   2  * MltProducer.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 "MltProducer.h"
  22 #include "MltFilter.h"
  23 using namespace Mlt;
  24
  25 Producer::Producer( ) :
  26         instance( NULL )
  27 {
  28 }
  29
  30 Producer::Producer( char *id, char *service ) :
  31         instance( NULL )
  32 {
  33         if ( id != NULL && service != NULL )
  34                 instance = mlt_factory_producer( id, service );
  35         else
  36                 instance = mlt_factory_producer( "fezzik", id != NULL ? id : service );
  37 }
  38
  39 Producer::Producer( Service &producer ) :
  40         instance( NULL )
  41 {
  42         mlt_service_type type = producer.type( );
  43         if ( type == producer_type || type == playlist_type ||
  44                  type == tractor_type || type == multitrack_type )
  45         {
  46                 instance = ( mlt_producer )producer.get_service( );
  47                 inc_ref( );
  48         }
  49 }
  50
  51 Producer::Producer( mlt_producer producer ) :
  52         instance( producer )
  53 {
  54         inc_ref( );
  55 }
  56
  57 Producer::Producer( Producer &producer ) :
  58         instance( producer.get_producer( ) )
  59 {
  60         inc_ref( );
  61 }
  62
  63 Producer::Producer( Producer *producer ) :
  64         instance( producer != NULL ? producer->get_producer( ) : NULL )
  65 {
  66         if ( is_valid( ) )
  67                 inc_ref( );
  68 }
  69
  70 Producer::~Producer( )
  71 {
  72         mlt_producer_close( instance );
  73         instance = NULL;
  74 }
  75
  76 mlt_producer Producer::get_producer( )
  77 {
  78         return instance;
  79 }
  80
  81 mlt_producer Producer::get_parent( )
  82 {
  83         return get_producer( ) != NULL && mlt_producer_cut_parent( get_producer( ) ) != NULL ? mlt_producer_cut_parent( get_producer( ) ) : get_producer( );
  84 }
  85
  86 mlt_service Producer::get_service( )
  87 {
  88         return mlt_producer_service( get_producer( ) );
  89 }
  90
  91 int Producer::seek( int position )
  92 {
  93         return mlt_producer_seek( get_producer( ), position );
  94 }
  95
  96 int Producer::position( )
  97 {
  98         return mlt_producer_position( get_producer( ) );
  99 }
 100
 101 int Producer::frame( )
 102 {
 103         return mlt_producer_frame( get_producer( ) );
 104 }
 105
 106 int Producer::set_speed( double speed )
 107 {
 108         return mlt_producer_set_speed( get_producer( ), speed );
 109 }
 110
 111 double Producer::get_speed( )
 112 {
 113         return mlt_producer_get_speed( get_producer( ) );
 114 }
 115
 116 double Producer::get_fps( )
 117 {
 118         return mlt_producer_get_fps( get_producer( ) );
 119 }
 120
 121 int Producer::set_in_and_out( int in, int out )
 122 {
 123         return mlt_producer_set_in_and_out( get_producer( ), in, out );
 124 }
 125
 126 int Producer::get_in( )
 127 {
 128         return mlt_producer_get_in( get_producer( ) );
 129 }
 130
 131 int Producer::get_out( )
 132 {
 133         return mlt_producer_get_out( get_producer( ) );
 134 }
 135
 136 int Producer::get_length( )
 137 {
 138         return mlt_producer_get_length( get_producer( ) );
 139 }
 140
 141 int Producer::get_playtime( )
 142 {
 143         return mlt_producer_get_playtime( get_producer( ) );
 144 }
 145
 146 Producer *Producer::cut( int in, int out )
 147 {
 148         mlt_producer producer = mlt_producer_cut( get_producer( ), in, out );
 149         Producer *result = new Producer( producer );
 150         mlt_producer_close( producer );
 151         return result;
 152 }
 153
 154 bool Producer::is_cut( )
 155 {
 156         return mlt_producer_is_cut( get_producer( ) );
 157 }
 158
 159 bool Producer::is_blank( )
 160 {
 161         return mlt_producer_is_blank( get_producer( ) );
 162 }
 163
 164 bool Producer::same_clip( Producer &that )
 165 {
 166         return mlt_producer_cut_parent( get_producer( ) ) == mlt_producer_cut_parent( that.get_producer( ) );
 167 }
 168
 169 bool Producer::runs_into( Producer &that )
 170 {
 171         return same_clip( that ) && get_out( ) == ( that.get_in( ) - 1 );
 172 }
 173
 174 void Producer::optimise( )
 175 {
 176         mlt_producer_optimise( get_producer( ) );
 177 }