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         Mlt::Service( producer ),
  64         instance( producer.get_producer( ) ),
  65         parent_( NULL )
  66 {
  67         inc_ref( );
  68 }
  69
  70 Producer::Producer( Producer *producer ) :
  71         instance( producer != NULL ? producer->get_producer( ) : NULL ),
  72         parent_( NULL )
  73 {
  74         if ( is_valid( ) )
  75                 inc_ref( );
  76 }
  77
  78 Producer::~Producer( )
  79 {
  80         delete parent_;
  81         mlt_producer_close( instance );
  82         instance = NULL;
  83 }
  84
  85 mlt_producer Producer::get_producer( )
  86 {
  87         return instance;
  88 }
  89
  90 mlt_producer Producer::get_parent( )
  91 {
  92         return get_producer( ) != NULL && mlt_producer_cut_parent( get_producer( ) ) != NULL ? mlt_producer_cut_parent( get_producer( ) ) : get_producer( );
  93 }
  94
  95 Producer &Producer::parent( )
  96 {
  97         if ( is_cut( ) && parent_ == NULL )
  98                 parent_ = new Producer( get_parent( ) );
  99         return parent_ == NULL ? *this : *parent_;
 100 }
 101
 102 mlt_service Producer::get_service( )
 103 {
 104         return mlt_producer_service( get_producer( ) );
 105 }
 106
 107 int Producer::seek( int position )
 108 {
 109         return mlt_producer_seek( get_producer( ), position );
 110 }
 111
 112 int Producer::position( )
 113 {
 114         return mlt_producer_position( get_producer( ) );
 115 }
 116
 117 int Producer::frame( )
 118 {
 119         return mlt_producer_frame( get_producer( ) );
 120 }
 121
 122 int Producer::set_speed( double speed )
 123 {
 124         return mlt_producer_set_speed( get_producer( ), speed );
 125 }
 126
 127 double Producer::get_speed( )
 128 {
 129         return mlt_producer_get_speed( get_producer( ) );
 130 }
 131
 132 double Producer::get_fps( )
 133 {
 134         return mlt_producer_get_fps( get_producer( ) );
 135 }
 136
 137 int Producer::set_in_and_out( int in, int out )
 138 {
 139         return mlt_producer_set_in_and_out( get_producer( ), in, out );
 140 }
 141
 142 int Producer::get_in( )
 143 {
 144         return mlt_producer_get_in( get_producer( ) );
 145 }
 146
 147 int Producer::get_out( )
 148 {
 149         return mlt_producer_get_out( get_producer( ) );
 150 }
 151
 152 int Producer::get_length( )
 153 {
 154         return mlt_producer_get_length( get_producer( ) );
 155 }
 156
 157 int Producer::get_playtime( )
 158 {
 159         return mlt_producer_get_playtime( get_producer( ) );
 160 }
 161
 162 Producer *Producer::cut( int in, int out )
 163 {
 164         mlt_producer producer = mlt_producer_cut( get_producer( ), in, out );
 165         Producer *result = new Producer( producer );
 166         mlt_producer_close( producer );
 167         return result;
 168 }
 169
 170 bool Producer::is_cut( )
 171 {
 172         return mlt_producer_is_cut( get_producer( ) ) != 0;
 173 }
 174
 175 bool Producer::is_blank( )
 176 {
 177         return mlt_producer_is_blank( get_producer( ) ) != 0;
 178 }
 179
 180 bool Producer::same_clip( Producer &that )
 181 {
 182         return mlt_producer_cut_parent( get_producer( ) ) == mlt_producer_cut_parent( that.get_producer( ) );
 183 }
 184
 185 bool Producer::runs_into( Producer &that )
 186 {
 187         return same_clip( that ) && get_out( ) == ( that.get_in( ) - 1 );
 188 }
 189
 190 void Producer::optimise( )
 191 {
 192         mlt_producer_optimise( get_producer( ) );
 193 }