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 #include "MltProfile.h"
  24 using namespace Mlt;
  25
  26 Producer::Producer( ) :
  27         instance( NULL ),
  28         parent_( NULL )
  29 {
  30 }
  31
  32 Producer::Producer( Profile& profile, char *id, char *service ) :
  33         instance( NULL ),
  34         parent_( NULL )
  35 {
  36         if ( id != NULL && service != NULL )
  37                 instance = mlt_factory_producer( profile.get_profile(), id, service );
  38         else
  39                 instance = mlt_factory_producer( profile.get_profile(), "fezzik", id != NULL ? id : service );
  40 }
  41
  42 Producer::Producer( Service &producer ) :
  43         instance( NULL ),
  44         parent_( NULL )
  45 {
  46         mlt_service_type type = producer.type( );
  47         if ( type == producer_type || type == playlist_type ||
  48                  type == tractor_type || type == multitrack_type )
  49         {
  50                 instance = ( mlt_producer )producer.get_service( );
  51                 inc_ref( );
  52         }
  53 }
  54
  55 Producer::Producer( mlt_producer producer ) :
  56         instance( producer ),
  57         parent_( NULL )
  58 {
  59         inc_ref( );
  60 }
  61
  62 Producer::Producer( Producer &producer ) :
  63         instance( producer.get_producer( ) ),
  64         parent_( NULL )
  65 {
  66         inc_ref( );
  67 }
  68
  69 Producer::Producer( Producer *producer ) :
  70         instance( producer != NULL ? producer->get_producer( ) : NULL ),
  71         parent_( NULL )
  72 {
  73         if ( is_valid( ) )
  74                 inc_ref( );
  75 }
  76
  77 Producer::~Producer( )
  78 {
  79         delete parent_;
  80         mlt_producer_close( instance );
  81         instance = NULL;
  82 }
  83
  84 mlt_producer Producer::get_producer( )
  85 {
  86         return instance;
  87 }
  88
  89 mlt_producer Producer::get_parent( )
  90 {
  91         return get_producer( ) != NULL && mlt_producer_cut_parent( get_producer( ) ) != NULL ? mlt_producer_cut_parent( get_producer( ) ) : get_producer( );
  92 }
  93
  94 Producer &Producer::parent( )
  95 {
  96         if ( is_cut( ) && parent_ == NULL )
  97                 parent_ = new Producer( get_parent( ) );
  98         return parent_ == NULL ? *this : *parent_;
  99 }
 100
 101 mlt_service Producer::get_service( )
 102 {
 103         return mlt_producer_service( get_producer( ) );
 104 }
 105
 106 int Producer::seek( int position )
 107 {
 108         return mlt_producer_seek( get_producer( ), position );
 109 }
 110
 111 int Producer::position( )
 112 {
 113         return mlt_producer_position( get_producer( ) );
 114 }
 115
 116 int Producer::frame( )
 117 {
 118         return mlt_producer_frame( get_producer( ) );
 119 }
 120
 121 int Producer::set_speed( double speed )
 122 {
 123         return mlt_producer_set_speed( get_producer( ), speed );
 124 }
 125
 126 double Producer::get_speed( )
 127 {
 128         return mlt_producer_get_speed( get_producer( ) );
 129 }
 130
 131 double Producer::get_fps( )
 132 {
 133         return mlt_producer_get_fps( get_producer( ) );
 134 }
 135
 136 int Producer::set_in_and_out( int in, int out )
 137 {
 138         return mlt_producer_set_in_and_out( get_producer( ), in, out );
 139 }
 140
 141 int Producer::get_in( )
 142 {
 143         return mlt_producer_get_in( get_producer( ) );
 144 }
 145
 146 int Producer::get_out( )
 147 {
 148         return mlt_producer_get_out( get_producer( ) );
 149 }
 150
 151 int Producer::get_length( )
 152 {
 153         return mlt_producer_get_length( get_producer( ) );
 154 }
 155
 156 int Producer::get_playtime( )
 157 {
 158         return mlt_producer_get_playtime( get_producer( ) );
 159 }
 160
 161 Producer *Producer::cut( int in, int out )
 162 {
 163         mlt_producer producer = mlt_producer_cut( get_producer( ), in, out );
 164         Producer *result = new Producer( producer );
 165         mlt_producer_close( producer );
 166         return result;
 167 }
 168
 169 bool Producer::is_cut( )
 170 {
 171         return mlt_producer_is_cut( get_producer( ) ) != 0;
 172 }
 173
 174 bool Producer::is_blank( )
 175 {
 176         return mlt_producer_is_blank( get_producer( ) ) != 0;
 177 }
 178
 179 bool Producer::same_clip( Producer &that )
 180 {
 181         return mlt_producer_cut_parent( get_producer( ) ) == mlt_producer_cut_parent( that.get_producer( ) );
 182 }
 183
 184 bool Producer::runs_into( Producer &that )
 185 {
 186         return same_clip( that ) && get_out( ) == ( that.get_in( ) - 1 );
 187 }
 188
 189 void Producer::optimise( )
 190 {
 191         mlt_producer_optimise( get_producer( ) );
 192 }